为啥84分？？？

#include<bits/stdc++.h>
using namespace std;
struct ms{
    string mz;
    int nian,yue,ri;
};
ms r[110];
int rs;
bool cmp(ms x,ms y){
    if(x.nian==y.nian&&x.yue==y.yue&&x.ri==y.ri){
        return 1;
    }
    if(x.nian==y.nian&&x.yue==y.yue){
        return x.ri<y.ri;
    }
    if(x.nian==y.nian){
        return x.yue<y.yue;
    }
    return x.nian<y.nian;
}
int main(){
    cin>>rs;
    for(int i=1;i<=rs;i++){
        cin>>r[i].mz>>r[i].nian>>r[i].yue>>r[i].ri;
    }
    sort(r+1,r+1+rs,cmp);
    for(int i=1;i<=rs;i++){
        cout<<r[i].mz<<"\n";
    }

    return 0;
}