add 3016

Author: fishercoder1534

Diff for: paginated_contents/algorithms/4th_thousand/README.md

@@ -72,6 +72,7 @@
 | 3024 | [Type of Triangle](https://leetcode.com/problems/type-of-triangle/)                                                                                               | [Java](https://github.com/fishercoder1534/Leetcode/blob/master/src/main/java/com/fishercoder/solutions/fourththousand/_3024.java) |                                                                               | Easy       |
 | 3028 | [Ant on the Boundary](https://leetcode.com/problems/ant-on-the-boundary/)                                                                                               | [Java](https://github.com/fishercoder1534/Leetcode/blob/master/src/main/java/com/fishercoder/solutions/fourththousand/_3028.java) |                                                                               | Easy       |
 | 3019 | [Number of Changing Keys](https://leetcode.com/problems/number-of-changing-keys/)                                                                                               | [Java](https://github.com/fishercoder1534/Leetcode/blob/master/src/main/java/com/fishercoder/solutions/fourththousand/_3019.java) |                                                                               | Easy       |
+| 3016 | [Minimum Number of Pushes to Type Word II](https://leetcode.com/problems/minimum-number-of-pushes-to-type-word-ii/)                                                                                               | [Java](https://github.com/fishercoder1534/Leetcode/blob/master/src/main/java/com/fishercoder/solutions/fourththousand/_3016.java) |                                                                               | Medium     |
 | 3010 | [Divide an Array Into Subarrays With Minimum Cost I](https://leetcode.com/problems/divide-an-array-into-subarrays-with-minimum-cost-i/)                                                                                               | [Java](https://github.com/fishercoder1534/Leetcode/blob/master/src/main/java/com/fishercoder/solutions/fourththousand/_3010.java) |                                                                               | Easy       |
 | 3014 | [Minimum Number of Pushes to Type Word I](https://leetcode.com/problems/minimum-number-of-pushes-to-type-word-i/)                                                   | [Java](https://github.com/fishercoder1534/Leetcode/blob/master/src/main/java/com/fishercoder/solutions/fourththousand/_3014.java) |                                                                               | Easy       |
 | 3006 | [Find Beautiful Indices in the Given Array I](https://leetcode.com/problems/find-beautiful-indices-in-the-given-array-i/)                                           | [Java](https://github.com/fishercoder1534/Leetcode/blob/master/src/main/java/com/fishercoder/solutions/fourththousand/_3006.java) |                                                                               | Medium     |

Diff for: src/main/java/com/fishercoder/solutions/fourththousand/_3016.java

@@ -0,0 +1,34 @@
+package com.fishercoder.solutions.fourththousand;
+
+import java.util.HashMap;
+import java.util.Map;
+import java.util.PriorityQueue;
+
+public class _3016 {
+    public static class Solution1 {
+        public int minimumPushes(String word) {
+            Map<Character, Integer> map = new HashMap<>();
+            for (char c : word.toCharArray()) {
+                map.put(c, map.getOrDefault(c, 0) + 1);
+            }
+            PriorityQueue<Map.Entry<Character, Integer>> maxHeap = new PriorityQueue<>((a, b) -> b.getValue() - a.getValue());
+            for (Map.Entry<Character, Integer> entry : map.entrySet()) {
+                maxHeap.offer(entry);
+            }
+            int[] possibleSets = new int[]{1, 2, 3, 4};
+            int digitsLength = 8;//a total of 8 digits that can be assigned
+            Map<Character, Integer> assigned = new HashMap<>();
+            for (int j = 0; j < possibleSets.length && !maxHeap.isEmpty(); j++) {
+                for (int i = 0; i < digitsLength && !maxHeap.isEmpty(); i++) {
+                    Map.Entry<Character, Integer> curr = maxHeap.poll();
+                    assigned.put(curr.getKey(), possibleSets[j]);
+                }
+            }
+            int ans = 0;
+            for (Map.Entry<Character, Integer> entry : map.entrySet()) {
+                ans += entry.getValue() * assigned.get(entry.getKey());
+            }
+            return ans;
+        }
+    }
+}

Diff for: src/test/java/com/fishercoder/fourththousand/_3016Test.java

@@ -0,0 +1,21 @@
+package com.fishercoder.fourththousand;
+
+import com.fishercoder.solutions.fourththousand._3016;
+import org.junit.jupiter.api.BeforeEach;
+import org.junit.jupiter.api.Test;
+
+import static org.junit.jupiter.api.Assertions.assertEquals;
+
+public class _3016Test {
+    private static _3016.Solution1 solution1;
+
+    @BeforeEach
+    public void setup() {
+        solution1 = new _3016.Solution1();
+    }
+
+    @Test
+    public void test1() {
+        assertEquals(24, solution1.minimumPushes("aabbccddeeffgghhiiiiii"));
+    }
+}