题1. 三元组

#include<iostream>
#include<algorithm>
#include<cstring>
using namespace std;
const int N=10010;
struct data{
    int x;
    double y;
    string z;
    bool operator <(const data&t) const{
        return x<t.x;
    }
}d[N];
int main(){
    int n;
    cin>>n;
    for(int i=0;i<n;i++)
    {
        cin>>d[i].x>>d[i].y>>d[i].z;
    }
    sort(d,d+n);
    for(int i=0;i<n;i++){
    printf("%d %.2lf %s\n",d[i].x,d[i].y,d[i].z.c_str());
    }
    return 0;
}