```
return false;
```
还要判断先后顺序
by Henry2012 @ 2023-07-10 10:32:05
>如果有两个同学生日相同，输入靠后的同学先输出
by Henry2012 @ 2023-07-10 10:32:49
@[Henry2012](/user/745332) false就是靠后的人先输出啊
by hexuchen @ 2023-07-10 10:38:04
排序的时候会把原来的顺序打乱,而且sort是不稳定的
by Henry2012 @ 2023-07-10 11:00:46
```
#include <bits/stdc++.h>
using namespace std;
struct student{
string name;
int year,month,day,num;
};
bool cmp(student a,student b){
if(a.year!=b.year)
return a.year<b.year;
if(a.month!=b.month)
return a.month<b.month;
if(a.day!=b.day)
return a.day<b.day;
return a.num>b.num;
}
int main(){
int n;
student s[101];
cin>>n;
for(int i=0;i<n;i++){
cin>>s[i].name>>s[i].year>>s[i].month>>s[i].day,s[i].num=i;
}
sort(s,s+n,cmp);
for(int i=0;i<n;i++){
cout<<s[i].name<<endl;
}
return 0;
}
```
这样就AC了 @[hexuchen](https://www.luogu.com.cn/user/945742)
by Henry2012 @ 2023-07-10 11:15:34
求互关
by Henry2012 @ 2023-07-10 11:15:50
@[Henry2012](/user/745332) 知道了，我真TM是个傻逼.......
by hexuchen @ 2023-07-11 08:38:27