Merge pull request #1141 from 0xff-dev/2965

Add solution and test-cases for problem  2965

Author: 6boris

leetcode/2901-3000/2965.Find-Missing-and-Repeated-Values/README.md

@@ -1,28 +1,25 @@
 # [2965.Find Missing and Repeated Values][title]
 
-> [!WARNING|style:flat]
-> This question is temporarily unanswered if you have good ideas. Welcome to [Create Pull Request PR](https://github.com/kylesliu/awesome-golang-algorithm)
-
 ## Description
+You are given a **0-indexed** 2D integer matrix `grid` of size `n * n` with values in the range `[1, n^2]`. Each integer appears **exactly once** except `a` which appears **twice** and `b` which is **missing**. The task is to find the repeating and missing numbers `a` and `b`.
+
+Return a **0-indexed** integer array `ans` of size `2` where `ans[0]` equals to `a` and `ans[1]` equals to `b`.
 
 **Example 1:**
 
 ```
-Input: a = "11", b = "1"
-Output: "100"
+Input: grid = [[1,3],[2,2]]
+Output: [2,4]
+Explanation: Number 2 is repeated and number 4 is missing so the answer is [2,4].
 ```
 
-## 题意
-> ...
-
-## 题解
+**Example 2:**
 
-### 思路1
-> ...
-Find Missing and Repeated Values
-```go
 ```
-
+Input: grid = [[9,1,7],[8,9,2],[3,4,6]]
+Output: [9,5]
+Explanation: Number 9 is repeated and number 5 is missing so the answer is [9,5].
+```
 
 ## 结语
 

leetcode/2901-3000/2965.Find-Missing-and-Repeated-Values/Solution.go

@@ -1,5 +1,21 @@
 package Solution
 
-func Solution(x bool) bool {
-	return x
+func Solution(grid [][]int) []int {
+	m := len(grid)
+	base, sum := m*m, 0
+	n := make([]int, base)
+	target := base * (base + 1) / 2
+	repeate := 1
+	for i := 0; i < m; i++ {
+		for j := 0; j < m; j++ {
+			n[grid[i][j]-1]++
+			if n[grid[i][j]-1] == 2 {
+				repeate = grid[i][j]
+			}
+			sum += grid[i][j]
+		}
+	}
+	diff := sum - target
+	ans := []int{repeate, repeate - diff}
+	return ans
 }

leetcode/2901-3000/2965.Find-Missing-and-Repeated-Values/Solution_test.go

@@ -10,12 +10,11 @@ func TestSolution(t *testing.T) {
 	//	测试用例
 	cases := []struct {
 		name   string
-		inputs bool
-		expect bool
+		inputs [][]int
+		expect []int
 	}{
-		{"TestCase", true, true},
-		{"TestCase", true, true},
-		{"TestCase", false, false},
+		{"TestCase1", [][]int{{1, 3}, {2, 2}}, []int{2, 4}},
+		{"TestCase2", [][]int{{9, 1, 7}, {8, 9, 2}, {3, 4, 6}}, []int{9, 5}},
 	}
 
 	//	开始测试
@@ -30,10 +29,10 @@ func TestSolution(t *testing.T) {
 	}
 }
 
-//	压力测试
+// 压力测试
 func BenchmarkSolution(b *testing.B) {
 }
 
-//	使用案列
+// 使用案列
 func ExampleSolution() {
 }