题解 | #合并表记录#
合并表记录
https://www.nowcoder.com/practice/de044e89123f4a7482bd2b214a685201
#include <bits/stdc++.h> using namespace std; int main() { int n; cin >> n; map<int,int> input; while(n--){ int i, j; cin >> i >> j; input[i] += j; } for(auto x : input) cout << x.first << ' '<< x.second << endl; }