diff --git a/solution/1200-1299/1298.Maximum Candies You Can Get from Boxes/README.md b/solution/1200-1299/1298.Maximum Candies You Can Get from Boxes/README.md
index d974408e38dbb..d22ae47dda3f4 100644
--- a/solution/1200-1299/1298.Maximum Candies You Can Get from Boxes/README.md	
+++ b/solution/1200-1299/1298.Maximum Candies You Can Get from Boxes/README.md	
@@ -99,7 +99,24 @@ tags:
 
 <!-- solution:start -->
 
-### 方法一：BFS
+### 方法一：BFS + 哈希集合
+
+题目给定一批盒子，每个盒子可能有状态（开/关）、糖果、钥匙、以及其他盒子。我们的目标是通过初始给定的一些盒子，尽可能多地打开更多盒子，并收集其中的糖果。可以通过获得钥匙来解锁新盒子，通过盒子中嵌套的盒子来获取更多资源。
+
+我们采用 BFS 的方式模拟整个探索过程。
+
+我们用一个队列 $q$ 表示当前可以访问的、**已经开启** 的盒子；用两个集合 $\textit{has}$ 和 $\textit{took}$ 分别记录**我们拥有的所有盒子**和**已经处理过的盒子**，防止重复。
+
+初始时，将所有 $\textit{initialBoxes}$ 添加到 $\textit{has}$ 中，如果初始盒子状态为开启，立即加入队列 $\textit{q}$ 并累计糖果；
+
+然后进行 BFS，依次从 $\textit{q}$ 中取出盒子：
+
+-   获取盒子中的钥匙 $\textit{keys[box]}$，将能解锁的盒子加入队列；
+-   收集盒子中包含的其他盒子 $\textit{containedBoxes[box]}$，如果状态是开启的且未处理过，则立即处理；
+
+每个盒子最多处理一次，糖果累计一次，最终返回总糖果数 $\textit{ans}$。
+
+时间复杂度 $O(n)$，空间复杂度 $O(n)$，其中 $n$ 是盒子的总数。
 
 <!-- tabs:start -->
 
@@ -115,25 +132,31 @@ class Solution:
         containedBoxes: List[List[int]],
         initialBoxes: List[int],
     ) -> int:
-        q = deque([i for i in initialBoxes if status[i] == 1])
-        ans = sum(candies[i] for i in initialBoxes if status[i] == 1)
-        has = set(initialBoxes)
-        took = {i for i in initialBoxes if status[i] == 1}
-
+        q = deque()
+        has, took = set(initialBoxes), set()
+        ans = 0
+
+        for box in initialBoxes:
+            if status[box]:
+                q.append(box)
+                took.add(box)
+                ans += candies[box]
         while q:
-            i = q.popleft()
-            for k in keys[i]:
-                status[k] = 1
-                if k in has and k not in took:
-                    ans += candies[k]
-                    took.add(k)
-                    q.append(k)
-            for j in containedBoxes[i]:
-                has.add(j)
-                if status[j] and j not in took:
-                    ans += candies[j]
-                    took.add(j)
-                    q.append(j)
+            box = q.popleft()
+            for k in keys[box]:
+                if not status[k]:
+                    status[k] = 1
+                    if k in has and k not in took:
+                        q.append(k)
+                        took.add(k)
+                        ans += candies[k]
+
+            for b in containedBoxes[box]:
+                has.add(b)
+                if status[b] and b not in took:
+                    q.append(b)
+                    took.add(b)
+                    ans += candies[b]
         return ans
 ```
 
@@ -143,35 +166,36 @@ class Solution:
 class Solution {
     public int maxCandies(
         int[] status, int[] candies, int[][] keys, int[][] containedBoxes, int[] initialBoxes) {
-        int ans = 0;
-        int n = status.length;
-        boolean[] has = new boolean[n];
-        boolean[] took = new boolean[n];
         Deque<Integer> q = new ArrayDeque<>();
-        for (int i : initialBoxes) {
-            has[i] = true;
-            if (status[i] == 1) {
-                ans += candies[i];
-                took[i] = true;
-                q.offer(i);
+        Set<Integer> has = new HashSet<>();
+        Set<Integer> took = new HashSet<>();
+        int ans = 0;
+        for (int box : initialBoxes) {
+            has.add(box);
+            if (status[box] == 1) {
+                q.offer(box);
+                took.add(box);
+                ans += candies[box];
             }
         }
         while (!q.isEmpty()) {
-            int i = q.poll();
-            for (int k : keys[i]) {
-                status[k] = 1;
-                if (has[k] && !took[k]) {
-                    ans += candies[k];
-                    took[k] = true;
-                    q.offer(k);
+            int box = q.poll();
+            for (int k : keys[box]) {
+                if (status[k] == 0) {
+                    status[k] = 1;
+                    if (has.contains(k) && !took.contains(k)) {
+                        q.offer(k);
+                        took.add(k);
+                        ans += candies[k];
+                    }
                 }
             }
-            for (int j : containedBoxes[i]) {
-                has[j] = true;
-                if (status[j] == 1 && !took[j]) {
-                    ans += candies[j];
-                    took[j] = true;
-                    q.offer(j);
+            for (int b : containedBoxes[box]) {
+                has.add(b);
+                if (status[b] == 1 && !took.contains(b)) {
+                    q.offer(b);
+                    took.add(b);
+                    ans += candies[b];
                 }
             }
         }
@@ -185,40 +209,50 @@ class Solution {
 ```cpp
 class Solution {
 public:
-    int maxCandies(vector<int>& status, vector<int>& candies, vector<vector<int>>& keys, vector<vector<int>>& containedBoxes, vector<int>& initialBoxes) {
-        int ans = 0;
-        int n = status.size();
-        vector<bool> has(n);
-        vector<bool> took(n);
+    int maxCandies(
+        vector<int>& status,
+        vector<int>& candies,
+        vector<vector<int>>& keys,
+        vector<vector<int>>& containedBoxes,
+        vector<int>& initialBoxes) {
         queue<int> q;
-        for (int& i : initialBoxes) {
-            has[i] = true;
-            if (status[i]) {
-                ans += candies[i];
-                took[i] = true;
-                q.push(i);
+        unordered_set<int> has, took;
+        int ans = 0;
+
+        for (int box : initialBoxes) {
+            has.insert(box);
+            if (status[box]) {
+                q.push(box);
+                took.insert(box);
+                ans += candies[box];
             }
         }
+
         while (!q.empty()) {
-            int i = q.front();
+            int box = q.front();
             q.pop();
-            for (int k : keys[i]) {
-                status[k] = 1;
-                if (has[k] && !took[k]) {
-                    ans += candies[k];
-                    took[k] = true;
-                    q.push(k);
+
+            for (int k : keys[box]) {
+                if (!status[k]) {
+                    status[k] = 1;
+                    if (has.count(k) && !took.count(k)) {
+                        q.push(k);
+                        took.insert(k);
+                        ans += candies[k];
+                    }
                 }
             }
-            for (int j : containedBoxes[i]) {
-                has[j] = true;
-                if (status[j] && !took[j]) {
-                    ans += candies[j];
-                    took[j] = true;
-                    q.push(j);
+
+            for (int b : containedBoxes[box]) {
+                has.insert(b);
+                if (status[b] && !took.count(b)) {
+                    q.push(b);
+                    took.insert(b);
+                    ans += candies[b];
                 }
             }
         }
+
         return ans;
     }
 };
@@ -227,41 +261,147 @@ public:
 #### Go
 
 ```go
-func maxCandies(status []int, candies []int, keys [][]int, containedBoxes [][]int, initialBoxes []int) int {
-	ans := 0
-	n := len(status)
-	has := make([]bool, n)
-	took := make([]bool, n)
-	var q []int
-	for _, i := range initialBoxes {
-		has[i] = true
-		if status[i] == 1 {
-			ans += candies[i]
-			took[i] = true
-			q = append(q, i)
+func maxCandies(status []int, candies []int, keys [][]int, containedBoxes [][]int, initialBoxes []int) (ans int) {
+	q := []int{}
+	has := make(map[int]bool)
+	took := make(map[int]bool)
+	for _, box := range initialBoxes {
+		has[box] = true
+		if status[box] == 1 {
+			q = append(q, box)
+			took[box] = true
+			ans += candies[box]
 		}
 	}
 	for len(q) > 0 {
-		i := q[0]
+		box := q[0]
 		q = q[1:]
-		for _, k := range keys[i] {
-			status[k] = 1
-			if has[k] && !took[k] {
-				ans += candies[k]
-				took[k] = true
-				q = append(q, k)
+		for _, k := range keys[box] {
+			if status[k] == 0 {
+				status[k] = 1
+				if has[k] && !took[k] {
+					q = append(q, k)
+					took[k] = true
+					ans += candies[k]
+				}
 			}
 		}
-		for _, j := range containedBoxes[i] {
-			has[j] = true
-			if status[j] == 1 && !took[j] {
-				ans += candies[j]
-				took[j] = true
-				q = append(q, j)
+		for _, b := range containedBoxes[box] {
+			has[b] = true
+			if status[b] == 1 && !took[b] {
+				q = append(q, b)
+				took[b] = true
+				ans += candies[b]
 			}
 		}
 	}
-	return ans
+	return
+}
+```
+
+#### TypeScript
+
+```ts
+function maxCandies(
+    status: number[],
+    candies: number[],
+    keys: number[][],
+    containedBoxes: number[][],
+    initialBoxes: number[],
+): number {
+    const q: number[] = [];
+    const has: Set<number> = new Set();
+    const took: Set<number> = new Set();
+    let ans = 0;
+
+    for (const box of initialBoxes) {
+        has.add(box);
+        if (status[box] === 1) {
+            q.push(box);
+            took.add(box);
+            ans += candies[box];
+        }
+    }
+
+    while (q.length > 0) {
+        const box = q.pop()!;
+
+        for (const k of keys[box]) {
+            if (status[k] === 0) {
+                status[k] = 1;
+                if (has.has(k) && !took.has(k)) {
+                    q.push(k);
+                    took.add(k);
+                    ans += candies[k];
+                }
+            }
+        }
+
+        for (const b of containedBoxes[box]) {
+            has.add(b);
+            if (status[b] === 1 && !took.has(b)) {
+                q.push(b);
+                took.add(b);
+                ans += candies[b];
+            }
+        }
+    }
+
+    return ans;
+}
+```
+
+#### Rust
+
+```rust
+use std::collections::{HashSet, VecDeque};
+
+impl Solution {
+    pub fn max_candies(
+        mut status: Vec<i32>,
+        candies: Vec<i32>,
+        keys: Vec<Vec<i32>>,
+        contained_boxes: Vec<Vec<i32>>,
+        initial_boxes: Vec<i32>,
+    ) -> i32 {
+        let mut q: VecDeque<i32> = VecDeque::new();
+        let mut has: HashSet<i32> = HashSet::new();
+        let mut took: HashSet<i32> = HashSet::new();
+        let mut ans = 0;
+
+        for &box_ in &initial_boxes {
+            has.insert(box_);
+            if status[box_ as usize] == 1 {
+                q.push_back(box_);
+                took.insert(box_);
+                ans += candies[box_ as usize];
+            }
+        }
+
+        while let Some(box_) = q.pop_front() {
+            for &k in &keys[box_ as usize] {
+                if status[k as usize] == 0 {
+                    status[k as usize] = 1;
+                    if has.contains(&k) && !took.contains(&k) {
+                        q.push_back(k);
+                        took.insert(k);
+                        ans += candies[k as usize];
+                    }
+                }
+            }
+
+            for &b in &contained_boxes[box_ as usize] {
+                has.insert(b);
+                if status[b as usize] == 1 && !took.contains(&b) {
+                    q.push_back(b);
+                    took.insert(b);
+                    ans += candies[b as usize];
+                }
+            }
+        }
+
+        ans
+    }
 }
 ```
 
diff --git a/solution/1200-1299/1298.Maximum Candies You Can Get from Boxes/README_EN.md b/solution/1200-1299/1298.Maximum Candies You Can Get from Boxes/README_EN.md
index 206d86924e214..3e1c094f6f83d 100644
--- a/solution/1200-1299/1298.Maximum Candies You Can Get from Boxes/README_EN.md	
+++ b/solution/1200-1299/1298.Maximum Candies You Can Get from Boxes/README_EN.md	
@@ -79,7 +79,24 @@ The total number of candies will be 6.
 
 <!-- solution:start -->
 
-### Solution 1
+### Solution 1: BFS + Hash Set
+
+The problem gives a set of boxes, each of which may have a state (open/closed), candies, keys, and other boxes inside. Our goal is to use the initially given boxes to open as many more boxes as possible and collect the candies inside. We can unlock new boxes by obtaining keys, and get more resources through boxes nested inside other boxes.
+
+We use BFS to simulate the entire exploration process.
+
+We use a queue $q$ to represent the currently accessible and **already opened** boxes; two sets, $\textit{has}$ and $\textit{took}$, are used to record **all boxes we own** and **boxes we have already processed**, to avoid duplicates.
+
+Initially, add all $\textit{initialBoxes}$ to $\textit{has}$. If an initial box is open, immediately add it to the queue $\textit{q}$ and accumulate its candies.
+
+Then perform BFS, taking boxes out of $\textit{q}$ one by one:
+
+-   Obtain the keys in the box $\textit{keys[box]}$ and add any boxes that can be unlocked to the queue;
+-   Collect other boxes contained in the box $\textit{containedBoxes[box]}$. If a contained box is open and has not been processed, process it immediately;
+
+Each box is processed at most once, and candies are accumulated once. Finally, return the total number of candies $\textit{ans}$.
+
+The time complexity is $O(n)$, and the space complexity is $O(n)$, where $n$ is the total number of boxes.
 
 <!-- tabs:start -->
 
@@ -95,25 +112,31 @@ class Solution:
         containedBoxes: List[List[int]],
         initialBoxes: List[int],
     ) -> int:
-        q = deque([i for i in initialBoxes if status[i] == 1])
-        ans = sum(candies[i] for i in initialBoxes if status[i] == 1)
-        has = set(initialBoxes)
-        took = {i for i in initialBoxes if status[i] == 1}
-
+        q = deque()
+        has, took = set(initialBoxes), set()
+        ans = 0
+
+        for box in initialBoxes:
+            if status[box]:
+                q.append(box)
+                took.add(box)
+                ans += candies[box]
         while q:
-            i = q.popleft()
-            for k in keys[i]:
-                status[k] = 1
-                if k in has and k not in took:
-                    ans += candies[k]
-                    took.add(k)
-                    q.append(k)
-            for j in containedBoxes[i]:
-                has.add(j)
-                if status[j] and j not in took:
-                    ans += candies[j]
-                    took.add(j)
-                    q.append(j)
+            box = q.popleft()
+            for k in keys[box]:
+                if not status[k]:
+                    status[k] = 1
+                    if k in has and k not in took:
+                        q.append(k)
+                        took.add(k)
+                        ans += candies[k]
+
+            for b in containedBoxes[box]:
+                has.add(b)
+                if status[b] and b not in took:
+                    q.append(b)
+                    took.add(b)
+                    ans += candies[b]
         return ans
 ```
 
@@ -123,35 +146,36 @@ class Solution:
 class Solution {
     public int maxCandies(
         int[] status, int[] candies, int[][] keys, int[][] containedBoxes, int[] initialBoxes) {
-        int ans = 0;
-        int n = status.length;
-        boolean[] has = new boolean[n];
-        boolean[] took = new boolean[n];
         Deque<Integer> q = new ArrayDeque<>();
-        for (int i : initialBoxes) {
-            has[i] = true;
-            if (status[i] == 1) {
-                ans += candies[i];
-                took[i] = true;
-                q.offer(i);
+        Set<Integer> has = new HashSet<>();
+        Set<Integer> took = new HashSet<>();
+        int ans = 0;
+        for (int box : initialBoxes) {
+            has.add(box);
+            if (status[box] == 1) {
+                q.offer(box);
+                took.add(box);
+                ans += candies[box];
             }
         }
         while (!q.isEmpty()) {
-            int i = q.poll();
-            for (int k : keys[i]) {
-                status[k] = 1;
-                if (has[k] && !took[k]) {
-                    ans += candies[k];
-                    took[k] = true;
-                    q.offer(k);
+            int box = q.poll();
+            for (int k : keys[box]) {
+                if (status[k] == 0) {
+                    status[k] = 1;
+                    if (has.contains(k) && !took.contains(k)) {
+                        q.offer(k);
+                        took.add(k);
+                        ans += candies[k];
+                    }
                 }
             }
-            for (int j : containedBoxes[i]) {
-                has[j] = true;
-                if (status[j] == 1 && !took[j]) {
-                    ans += candies[j];
-                    took[j] = true;
-                    q.offer(j);
+            for (int b : containedBoxes[box]) {
+                has.add(b);
+                if (status[b] == 1 && !took.contains(b)) {
+                    q.offer(b);
+                    took.add(b);
+                    ans += candies[b];
                 }
             }
         }
@@ -165,40 +189,50 @@ class Solution {
 ```cpp
 class Solution {
 public:
-    int maxCandies(vector<int>& status, vector<int>& candies, vector<vector<int>>& keys, vector<vector<int>>& containedBoxes, vector<int>& initialBoxes) {
-        int ans = 0;
-        int n = status.size();
-        vector<bool> has(n);
-        vector<bool> took(n);
+    int maxCandies(
+        vector<int>& status,
+        vector<int>& candies,
+        vector<vector<int>>& keys,
+        vector<vector<int>>& containedBoxes,
+        vector<int>& initialBoxes) {
         queue<int> q;
-        for (int& i : initialBoxes) {
-            has[i] = true;
-            if (status[i]) {
-                ans += candies[i];
-                took[i] = true;
-                q.push(i);
+        unordered_set<int> has, took;
+        int ans = 0;
+
+        for (int box : initialBoxes) {
+            has.insert(box);
+            if (status[box]) {
+                q.push(box);
+                took.insert(box);
+                ans += candies[box];
             }
         }
+
         while (!q.empty()) {
-            int i = q.front();
+            int box = q.front();
             q.pop();
-            for (int k : keys[i]) {
-                status[k] = 1;
-                if (has[k] && !took[k]) {
-                    ans += candies[k];
-                    took[k] = true;
-                    q.push(k);
+
+            for (int k : keys[box]) {
+                if (!status[k]) {
+                    status[k] = 1;
+                    if (has.count(k) && !took.count(k)) {
+                        q.push(k);
+                        took.insert(k);
+                        ans += candies[k];
+                    }
                 }
             }
-            for (int j : containedBoxes[i]) {
-                has[j] = true;
-                if (status[j] && !took[j]) {
-                    ans += candies[j];
-                    took[j] = true;
-                    q.push(j);
+
+            for (int b : containedBoxes[box]) {
+                has.insert(b);
+                if (status[b] && !took.count(b)) {
+                    q.push(b);
+                    took.insert(b);
+                    ans += candies[b];
                 }
             }
         }
+
         return ans;
     }
 };
@@ -207,41 +241,147 @@ public:
 #### Go
 
 ```go
-func maxCandies(status []int, candies []int, keys [][]int, containedBoxes [][]int, initialBoxes []int) int {
-	ans := 0
-	n := len(status)
-	has := make([]bool, n)
-	took := make([]bool, n)
-	var q []int
-	for _, i := range initialBoxes {
-		has[i] = true
-		if status[i] == 1 {
-			ans += candies[i]
-			took[i] = true
-			q = append(q, i)
+func maxCandies(status []int, candies []int, keys [][]int, containedBoxes [][]int, initialBoxes []int) (ans int) {
+	q := []int{}
+	has := make(map[int]bool)
+	took := make(map[int]bool)
+	for _, box := range initialBoxes {
+		has[box] = true
+		if status[box] == 1 {
+			q = append(q, box)
+			took[box] = true
+			ans += candies[box]
 		}
 	}
 	for len(q) > 0 {
-		i := q[0]
+		box := q[0]
 		q = q[1:]
-		for _, k := range keys[i] {
-			status[k] = 1
-			if has[k] && !took[k] {
-				ans += candies[k]
-				took[k] = true
-				q = append(q, k)
+		for _, k := range keys[box] {
+			if status[k] == 0 {
+				status[k] = 1
+				if has[k] && !took[k] {
+					q = append(q, k)
+					took[k] = true
+					ans += candies[k]
+				}
 			}
 		}
-		for _, j := range containedBoxes[i] {
-			has[j] = true
-			if status[j] == 1 && !took[j] {
-				ans += candies[j]
-				took[j] = true
-				q = append(q, j)
+		for _, b := range containedBoxes[box] {
+			has[b] = true
+			if status[b] == 1 && !took[b] {
+				q = append(q, b)
+				took[b] = true
+				ans += candies[b]
 			}
 		}
 	}
-	return ans
+	return
+}
+```
+
+#### TypeScript
+
+```ts
+function maxCandies(
+    status: number[],
+    candies: number[],
+    keys: number[][],
+    containedBoxes: number[][],
+    initialBoxes: number[],
+): number {
+    const q: number[] = [];
+    const has: Set<number> = new Set();
+    const took: Set<number> = new Set();
+    let ans = 0;
+
+    for (const box of initialBoxes) {
+        has.add(box);
+        if (status[box] === 1) {
+            q.push(box);
+            took.add(box);
+            ans += candies[box];
+        }
+    }
+
+    while (q.length > 0) {
+        const box = q.pop()!;
+
+        for (const k of keys[box]) {
+            if (status[k] === 0) {
+                status[k] = 1;
+                if (has.has(k) && !took.has(k)) {
+                    q.push(k);
+                    took.add(k);
+                    ans += candies[k];
+                }
+            }
+        }
+
+        for (const b of containedBoxes[box]) {
+            has.add(b);
+            if (status[b] === 1 && !took.has(b)) {
+                q.push(b);
+                took.add(b);
+                ans += candies[b];
+            }
+        }
+    }
+
+    return ans;
+}
+```
+
+#### Rust
+
+```rust
+use std::collections::{HashSet, VecDeque};
+
+impl Solution {
+    pub fn max_candies(
+        mut status: Vec<i32>,
+        candies: Vec<i32>,
+        keys: Vec<Vec<i32>>,
+        contained_boxes: Vec<Vec<i32>>,
+        initial_boxes: Vec<i32>,
+    ) -> i32 {
+        let mut q: VecDeque<i32> = VecDeque::new();
+        let mut has: HashSet<i32> = HashSet::new();
+        let mut took: HashSet<i32> = HashSet::new();
+        let mut ans = 0;
+
+        for &box_ in &initial_boxes {
+            has.insert(box_);
+            if status[box_ as usize] == 1 {
+                q.push_back(box_);
+                took.insert(box_);
+                ans += candies[box_ as usize];
+            }
+        }
+
+        while let Some(box_) = q.pop_front() {
+            for &k in &keys[box_ as usize] {
+                if status[k as usize] == 0 {
+                    status[k as usize] = 1;
+                    if has.contains(&k) && !took.contains(&k) {
+                        q.push_back(k);
+                        took.insert(k);
+                        ans += candies[k as usize];
+                    }
+                }
+            }
+
+            for &b in &contained_boxes[box_ as usize] {
+                has.insert(b);
+                if status[b as usize] == 1 && !took.contains(&b) {
+                    q.push_back(b);
+                    took.insert(b);
+                    ans += candies[b as usize];
+                }
+            }
+        }
+
+        ans
+    }
 }
 ```
 
diff --git a/solution/1200-1299/1298.Maximum Candies You Can Get from Boxes/Solution.cpp b/solution/1200-1299/1298.Maximum Candies You Can Get from Boxes/Solution.cpp
index 7b85217a5a1f3..fffc87bc0c3df 100644
--- a/solution/1200-1299/1298.Maximum Candies You Can Get from Boxes/Solution.cpp	
+++ b/solution/1200-1299/1298.Maximum Candies You Can Get from Boxes/Solution.cpp	
@@ -1,39 +1,49 @@
 class Solution {
 public:
-    int maxCandies(vector<int>& status, vector<int>& candies, vector<vector<int>>& keys, vector<vector<int>>& containedBoxes, vector<int>& initialBoxes) {
-        int ans = 0;
-        int n = status.size();
-        vector<bool> has(n);
-        vector<bool> took(n);
+    int maxCandies(
+        vector<int>& status,
+        vector<int>& candies,
+        vector<vector<int>>& keys,
+        vector<vector<int>>& containedBoxes,
+        vector<int>& initialBoxes) {
         queue<int> q;
-        for (int& i : initialBoxes) {
-            has[i] = true;
-            if (status[i]) {
-                ans += candies[i];
-                took[i] = true;
-                q.push(i);
+        unordered_set<int> has, took;
+        int ans = 0;
+
+        for (int box : initialBoxes) {
+            has.insert(box);
+            if (status[box]) {
+                q.push(box);
+                took.insert(box);
+                ans += candies[box];
             }
         }
+
         while (!q.empty()) {
-            int i = q.front();
+            int box = q.front();
             q.pop();
-            for (int k : keys[i]) {
-                status[k] = 1;
-                if (has[k] && !took[k]) {
-                    ans += candies[k];
-                    took[k] = true;
-                    q.push(k);
+
+            for (int k : keys[box]) {
+                if (!status[k]) {
+                    status[k] = 1;
+                    if (has.count(k) && !took.count(k)) {
+                        q.push(k);
+                        took.insert(k);
+                        ans += candies[k];
+                    }
                 }
             }
-            for (int j : containedBoxes[i]) {
-                has[j] = true;
-                if (status[j] && !took[j]) {
-                    ans += candies[j];
-                    took[j] = true;
-                    q.push(j);
+
+            for (int b : containedBoxes[box]) {
+                has.insert(b);
+                if (status[b] && !took.count(b)) {
+                    q.push(b);
+                    took.insert(b);
+                    ans += candies[b];
                 }
             }
         }
+
         return ans;
     }
-};
\ No newline at end of file
+};
diff --git a/solution/1200-1299/1298.Maximum Candies You Can Get from Boxes/Solution.go b/solution/1200-1299/1298.Maximum Candies You Can Get from Boxes/Solution.go
index 4ff69d070109e..610853ade8f02 100644
--- a/solution/1200-1299/1298.Maximum Candies You Can Get from Boxes/Solution.go	
+++ b/solution/1200-1299/1298.Maximum Candies You Can Get from Boxes/Solution.go	
@@ -1,36 +1,36 @@
-func maxCandies(status []int, candies []int, keys [][]int, containedBoxes [][]int, initialBoxes []int) int {
-	ans := 0
-	n := len(status)
-	has := make([]bool, n)
-	took := make([]bool, n)
-	var q []int
-	for _, i := range initialBoxes {
-		has[i] = true
-		if status[i] == 1 {
-			ans += candies[i]
-			took[i] = true
-			q = append(q, i)
+func maxCandies(status []int, candies []int, keys [][]int, containedBoxes [][]int, initialBoxes []int) (ans int) {
+	q := []int{}
+	has := make(map[int]bool)
+	took := make(map[int]bool)
+	for _, box := range initialBoxes {
+		has[box] = true
+		if status[box] == 1 {
+			q = append(q, box)
+			took[box] = true
+			ans += candies[box]
 		}
 	}
 	for len(q) > 0 {
-		i := q[0]
+		box := q[0]
 		q = q[1:]
-		for _, k := range keys[i] {
-			status[k] = 1
-			if has[k] && !took[k] {
-				ans += candies[k]
-				took[k] = true
-				q = append(q, k)
+		for _, k := range keys[box] {
+			if status[k] == 0 {
+				status[k] = 1
+				if has[k] && !took[k] {
+					q = append(q, k)
+					took[k] = true
+					ans += candies[k]
+				}
 			}
 		}
-		for _, j := range containedBoxes[i] {
-			has[j] = true
-			if status[j] == 1 && !took[j] {
-				ans += candies[j]
-				took[j] = true
-				q = append(q, j)
+		for _, b := range containedBoxes[box] {
+			has[b] = true
+			if status[b] == 1 && !took[b] {
+				q = append(q, b)
+				took[b] = true
+				ans += candies[b]
 			}
 		}
 	}
-	return ans
-}
\ No newline at end of file
+	return
+}
diff --git a/solution/1200-1299/1298.Maximum Candies You Can Get from Boxes/Solution.java b/solution/1200-1299/1298.Maximum Candies You Can Get from Boxes/Solution.java
index 3d9e243bfdfa3..d473b7305010c 100644
--- a/solution/1200-1299/1298.Maximum Candies You Can Get from Boxes/Solution.java	
+++ b/solution/1200-1299/1298.Maximum Candies You Can Get from Boxes/Solution.java	
@@ -1,38 +1,39 @@
 class Solution {
     public int maxCandies(
         int[] status, int[] candies, int[][] keys, int[][] containedBoxes, int[] initialBoxes) {
-        int ans = 0;
-        int n = status.length;
-        boolean[] has = new boolean[n];
-        boolean[] took = new boolean[n];
         Deque<Integer> q = new ArrayDeque<>();
-        for (int i : initialBoxes) {
-            has[i] = true;
-            if (status[i] == 1) {
-                ans += candies[i];
-                took[i] = true;
-                q.offer(i);
+        Set<Integer> has = new HashSet<>();
+        Set<Integer> took = new HashSet<>();
+        int ans = 0;
+        for (int box : initialBoxes) {
+            has.add(box);
+            if (status[box] == 1) {
+                q.offer(box);
+                took.add(box);
+                ans += candies[box];
             }
         }
         while (!q.isEmpty()) {
-            int i = q.poll();
-            for (int k : keys[i]) {
-                status[k] = 1;
-                if (has[k] && !took[k]) {
-                    ans += candies[k];
-                    took[k] = true;
-                    q.offer(k);
+            int box = q.poll();
+            for (int k : keys[box]) {
+                if (status[k] == 0) {
+                    status[k] = 1;
+                    if (has.contains(k) && !took.contains(k)) {
+                        q.offer(k);
+                        took.add(k);
+                        ans += candies[k];
+                    }
                 }
             }
-            for (int j : containedBoxes[i]) {
-                has[j] = true;
-                if (status[j] == 1 && !took[j]) {
-                    ans += candies[j];
-                    took[j] = true;
-                    q.offer(j);
+            for (int b : containedBoxes[box]) {
+                has.add(b);
+                if (status[b] == 1 && !took.contains(b)) {
+                    q.offer(b);
+                    took.add(b);
+                    ans += candies[b];
                 }
             }
         }
         return ans;
     }
-}
\ No newline at end of file
+}
diff --git a/solution/1200-1299/1298.Maximum Candies You Can Get from Boxes/Solution.py b/solution/1200-1299/1298.Maximum Candies You Can Get from Boxes/Solution.py
index fe996159a7a50..2aed0b52ec7ef 100644
--- a/solution/1200-1299/1298.Maximum Candies You Can Get from Boxes/Solution.py	
+++ b/solution/1200-1299/1298.Maximum Candies You Can Get from Boxes/Solution.py	
@@ -7,23 +7,29 @@ def maxCandies(
         containedBoxes: List[List[int]],
         initialBoxes: List[int],
     ) -> int:
-        q = deque([i for i in initialBoxes if status[i] == 1])
-        ans = sum(candies[i] for i in initialBoxes if status[i] == 1)
-        has = set(initialBoxes)
-        took = {i for i in initialBoxes if status[i] == 1}
+        q = deque()
+        has, took = set(initialBoxes), set()
+        ans = 0
 
+        for box in initialBoxes:
+            if status[box]:
+                q.append(box)
+                took.add(box)
+                ans += candies[box]
         while q:
-            i = q.popleft()
-            for k in keys[i]:
-                status[k] = 1
-                if k in has and k not in took:
-                    ans += candies[k]
-                    took.add(k)
-                    q.append(k)
-            for j in containedBoxes[i]:
-                has.add(j)
-                if status[j] and j not in took:
-                    ans += candies[j]
-                    took.add(j)
-                    q.append(j)
+            box = q.popleft()
+            for k in keys[box]:
+                if not status[k]:
+                    status[k] = 1
+                    if k in has and k not in took:
+                        q.append(k)
+                        took.add(k)
+                        ans += candies[k]
+
+            for b in containedBoxes[box]:
+                has.add(b)
+                if status[b] and b not in took:
+                    q.append(b)
+                    took.add(b)
+                    ans += candies[b]
         return ans
diff --git a/solution/1200-1299/1298.Maximum Candies You Can Get from Boxes/Solution.rs b/solution/1200-1299/1298.Maximum Candies You Can Get from Boxes/Solution.rs
new file mode 100644
index 0000000000000..852f702b4d83e
--- /dev/null
+++ b/solution/1200-1299/1298.Maximum Candies You Can Get from Boxes/Solution.rs	
@@ -0,0 +1,49 @@
+use std::collections::{HashSet, VecDeque};
+
+impl Solution {
+    pub fn max_candies(
+        mut status: Vec<i32>,
+        candies: Vec<i32>,
+        keys: Vec<Vec<i32>>,
+        contained_boxes: Vec<Vec<i32>>,
+        initial_boxes: Vec<i32>,
+    ) -> i32 {
+        let mut q: VecDeque<i32> = VecDeque::new();
+        let mut has: HashSet<i32> = HashSet::new();
+        let mut took: HashSet<i32> = HashSet::new();
+        let mut ans = 0;
+
+        for &box_ in &initial_boxes {
+            has.insert(box_);
+            if status[box_ as usize] == 1 {
+                q.push_back(box_);
+                took.insert(box_);
+                ans += candies[box_ as usize];
+            }
+        }
+
+        while let Some(box_) = q.pop_front() {
+            for &k in &keys[box_ as usize] {
+                if status[k as usize] == 0 {
+                    status[k as usize] = 1;
+                    if has.contains(&k) && !took.contains(&k) {
+                        q.push_back(k);
+                        took.insert(k);
+                        ans += candies[k as usize];
+                    }
+                }
+            }
+
+            for &b in &contained_boxes[box_ as usize] {
+                has.insert(b);
+                if status[b as usize] == 1 && !took.contains(&b) {
+                    q.push_back(b);
+                    took.insert(b);
+                    ans += candies[b as usize];
+                }
+            }
+        }
+
+        ans
+    }
+}
diff --git a/solution/1200-1299/1298.Maximum Candies You Can Get from Boxes/Solution.ts b/solution/1200-1299/1298.Maximum Candies You Can Get from Boxes/Solution.ts
new file mode 100644
index 0000000000000..4a6b7feaa674e
--- /dev/null
+++ b/solution/1200-1299/1298.Maximum Candies You Can Get from Boxes/Solution.ts	
@@ -0,0 +1,47 @@
+function maxCandies(
+    status: number[],
+    candies: number[],
+    keys: number[][],
+    containedBoxes: number[][],
+    initialBoxes: number[],
+): number {
+    const q: number[] = [];
+    const has: Set<number> = new Set();
+    const took: Set<number> = new Set();
+    let ans = 0;
+
+    for (const box of initialBoxes) {
+        has.add(box);
+        if (status[box] === 1) {
+            q.push(box);
+            took.add(box);
+            ans += candies[box];
+        }
+    }
+
+    while (q.length > 0) {
+        const box = q.pop()!;
+
+        for (const k of keys[box]) {
+            if (status[k] === 0) {
+                status[k] = 1;
+                if (has.has(k) && !took.has(k)) {
+                    q.push(k);
+                    took.add(k);
+                    ans += candies[k];
+                }
+            }
+        }
+
+        for (const b of containedBoxes[box]) {
+            has.add(b);
+            if (status[b] === 1 && !took.has(b)) {
+                q.push(b);
+                took.add(b);
+                ans += candies[b];
+            }
+        }
+    }
+
+    return ans;
+}