这样看不了你的源代码，你的源代码别人看不了的。您应该放上来源代码。
by __0__ @ 2024-04-13 16:51:32
要用结构体排序
```c
#include<bits/stdc++.h>
using namespace std;
#define ll long long
int n,s,a,b,o,ans;
struct r{
int x,y;
}l[5001],l1[5001];
bool cmp(r a,r b){
return a.y<b.y;
}
int main(){
cin>>n>>s>>a>>b;
if(n==0){
cout<<0;
return 0;
}
a+=b;
for(int i=0;i<n;i++){
cin>>l[i].x>>l[i].y;
if(l[i].x<=a)l1[o++]=l[i];
}
sort(l1,l1+o,cmp);
for(int i=0;i<=o;i++){
if(l1[i].y>s)break;
ans++,s-=l1[i].y;
}
cout<<ans;
return 0;
}
```
by XO_GODG @ 2024-04-13 16:52:31