#### 你这个cmp函数写得有点乱，思路有点太复杂了
##### 下面是我的AC代码，供参考:
```c
#include<bits/stdc++.h>
using namespace std;
struct stu{
string name;
int y;
int m;
int d;
int s;
}a[105];
bool cmp(stu a,stu b){
if(a.y!=b.y){
return a.y<b.y;
}
if(a.m!=b.m){
return a.m<b.m;
}
if(a.d!=b.d){
return a.d<b.d;
}
return a.s>b.s;
}
int main(){
int n;
cin>>n;
for(int i=0;i<n;i++){
cin>>a[i].name;
cin>>a[i].y;
cin>>a[i].m;
cin>>a[i].d;
a[i].s=i;
}
sort(a,a+n,cmp);
for(int i=0;i<n;i++){
cout<<a[i].name<<endl;
}
return 0;
}
```
##### 求关 qwq
by LeoYangcz @ 2023-12-10 20:46:01
~~~
cmp函数里没必要用if嵌套
by LeoYangcz @ 2023-12-10 20:52:07
@[LeoYangcz](/user/1054076) ok
by wang0728 @ 2024-02-23 16:46:50