250923

25/09/3005.cpp

@@ -0,0 +1,35 @@
+#include <vector>
+#include <iostream>
+#include <unordered_map>
+
+int maxFrequencyElements(std::vector<int> &nums)
+{
+    std::unordered_map<int,int> m;
+    std::for_each(nums.begin(),nums.end(),[&m](int x){
+        m[x]++;
+    });
+    int max = 0;
+    for_each(m.begin(),m.end(),[&max](std::pair<int,int> p){
+        if (p.second > max) max = p.second;
+    });
+    int count = 0;
+    std::for_each(m.begin(),m.end(),[&count,max](std::pair<int,int> p){
+        if (p.second == max) count++;
+    });
+
+    return count;
+}
+
+int enhance_1(std::vector<int> nums) {
+    std::unordered_map<int,int> m;
+    int ans = 0, max = 0;
+    std::for_each(nums.begin(),nums.end(),[&m,&ans,&max](int x) {
+        int c = ++m[x];
+        if (c > max) {
+            ans = max = c;
+        }else if (c == max) {
+            ans += c;
+        }
+    });
+    return ans;
+}