题解 | 众数

#include<iostream>
#include<vector>
#include<map>
using namespace std;

map<int, int> m;
int main() {
	int temp=0;
	for (int i = 0; i < 20; i++) {
		scanf("%d", &temp);
		m[temp]++;
	}
	map<int, int>::iterator iter;
	map<int, int>::iterator maxIter = m.begin();
	for (iter = m.begin(); iter != m.end(); iter++) {
		if (iter->second > maxIter->second)
		{
			maxIter = iter;
		}
	}
	cout << maxIter->first << endl;
	return 0;
}