又做了一些

rankTeams.cpp

@@ -0,0 +1,36 @@
+#include <iostream>
+#include <vector>
+#include <unordered_map>
+#include <algorithm>
+
+using namespace std;
+
+class Solution {
+public:
+    string rankTeams(vector<string>& votes) {
+        unordered_map<char,int> list;
+        for(auto i : votes){
+            for(int j = 0;j < i.size();j++){
+                list[i[j]] += i.size() - j;
+            }
+        }
+        string res;
+        vector<pair<char,int>> temp(list.begin(),list.end());
+        stable_sort(temp.begin(),temp.end(),[](pair<char,int> a,pair<char,int> b){
+            return a.second > b.second;
+        });
+        for(auto i : temp){
+            res += i.first;
+        }
+
+        return res;
+        
+    }
+};
+
+int main(){
+    vector<string> votes = {"WXYZ","XYZW"};
+    Solution s;
+    cout << s.rankTeams(votes) << endl;
+    return 0;
+}