HDU 1263 二维map

#include<cstdio>
#include<string>
#include<map>
#include<iostream>
using namespace std;
map<string,map<string,int> > m;
map<string,map<string,int> >::iterator it;
map<string,int>::iterator itt;
int main() {
    int t,n,x;
    string f,place;
    scanf("%d",&t);
    while(t--) {
        scanf("%d",&n);
        m.clear();
        for(int i=0;i<n;i++) {
            cin>>f>>place;scanf("%d",&x);
            m[place][f]+=x;
        }
        for(it=m.begin();it!=m.end();it++) {
            cout<<it->first<<endl;
            for(itt=it->second.begin();itt!=it->second.end();itt++) cout<<"   |----"<<itt->first<<"("<<itt->second<<")"<<endl;
        }
        if(t) cout<<endl;
    }
    return 0;
}