题解 | #合并表记录#
合并表记录
https://www.nowcoder.com/practice/de044e89123f4a7482bd2b214a685201
一眼map
#include <iostream>
#include <map>
int main(int argc, char* argv[]){
int n;
std::cin >> n;
int index;
int value;
std::map<int, int> map;
while(std::cin >> index >> value){
map[index] += value;
}
for(auto i : map){
std::cout << i.first << " " << i.second << std::endl;
}
return 0;
}
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