Time: 558 ms (33.27%), Space: 103.6 MB (89.36%) - LeetHub

2244-minimum-rounds-to-complete-all-tasks/2244-minimum-rounds-to-complete-all-tasks.cpp

@@ -0,0 +1,21 @@
+class Solution {
+public:
+    int minimumRounds(vector<int>& tasks) {
+        unordered_map<int, int> m;
+        for(int i=0;i<tasks.size();i++)
+        {
+            m[tasks[i]]++;
+        }
+        int cnt=0;
+
+        for(auto it: m)
+        {
+            if(it.second==1)return -1;
+            if(it.second%3==0)cnt+=it.second/3;
+            else
+                cnt+=it.second/3+1;
+        }
+        return cnt;
+
+    }
+};