题解 | #合并表记录#
合并表记录
https://www.nowcoder.com/practice/de044e89123f4a7482bd2b214a685201
#include <iostream>
using namespace std;
#include<map>
int main() {
int a, b;
int temp;
map<int,int> mp;
cin>>temp;//没用
while (cin >> a >> b)
{
mp[a]+=b;
}
for(auto it:mp)
{
cout<<it.first<<" "<<it.second<<endl;
}
}
// 64 位输出请用 printf("%lld")
