C++ 맵 최대값

1 개요

C++ 맵 최대값

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

int main() {
    map<string,int> m = {{"apple",1},{"banana",5},{"cranberry",3}};
    string maxKey = "";
    int maxValue = 0;
    for(auto& it: m) {
        if(it.second > maxValue) {
            maxValue = it.second;
            maxKey = it.first;
        }
    }
    cout << maxKey << endl; // banana
    cout << maxValue << endl; // 5
}

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

int main() {
    map<string,int> m = {{"apple",1},{"banana",5},{"cranberry",3}};
    using pair_type = decltype(m)::value_type;
    auto pr = max_element(begin(m), end(m), [](const pair_type& p1, const pair_type& p2) {
        return p1.second < p2.second;
    });
    cout << pr->first << endl; // banana
    cout << pr->second << endl; // 5
}

2 같이 보기

• C++ 맵
• C++ max_element()