题解 | #合并表记录# 方便理解
合并表记录
https://www.nowcoder.com/practice/de044e89123f4a7482bd2b214a685201
#include <iostream>
#include <bits/stdc++.h>
using namespace std;
int main() {
int n;
cin >> n;
map<int, int> m;
while (n -- ) {
int index, value;
cin >> index >> value;
m[index] += value;
}
for (auto &[idx, val] : m) {
cout << idx << " " << val << endl;
}
}
// 64 位输出请用 printf("%lld")
