Create 3005. Count Elements With Maximum Frequency 1 (#892)

Author: Chayandas07

3005. Count Elements With Maximum Frequency 1

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+#include <vector>
+#include <unordered_map>
+#include <algorithm>
+using namespace std;
+
+class Solution {
+public:
+    int maxFrequencyElements(vector<int>& nums) {
+        unordered_map<int,int> freq;
+        // Count frequency of each number
+        for (int x : nums) freq[x]++;
+
+        // Find maximum frequency
+        int maxFreq = 0;
+        for (auto &p : freq) maxFreq = max(maxFreq, p.second);
+
+        // Sum frequencies of elements that have frequency == maxFreq
+        int result = 0;
+        for (auto &p : freq) if (p.second == maxFreq) result += p.second;
+        return result;
+    }
+};