题解 | #合并表记录#
合并表记录
https://www.nowcoder.com/practice/de044e89123f4a7482bd2b214a685201
#include <iostream>
#include <map>
#include <unordered_map>
#include <vector>
using namespace std;
int main() {
int n;
cin >> n;
map<int, int> ans;
vector<int> res;
for (int i = 0; i < n * 2; i++) {
int j;
cin >> j;
res.push_back(j);
}
for (int i = 0; i < res.size() - 1; ) {
ans[res[i]] += res[i+1];
i+=2;
}
for (auto i : ans) {
cout << i.first << ' ' << i.second << endl;
}
}
// 64 位输出请用 printf("%lld")
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