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  1. #include <bits/stdc++.h>
  2. using namespace std;
  3. #define st first
  4. #define nd second
  5. int main() {
  6.     ios::sync_with_stdio(false);
  7.     cin.tie(0); cout.tie(0);
  8.     long long n,d,l,r,cnt=0; cin >> n >> d >> l >> r;
  9.     pair <long long,int> a[n+1];
  10.     for(int i=1;i<=n;i++) {
  11.         long long u,v; cin >> u >> v;
  12.         a[i].st=l*u+v*r;
  13.         a[i].nd=i;
  14.     }
  15.     sort(a+1,a+n+1);
  16.     vector <int> v;
  17.     for(int i=1;i<=n;i++) {
  18.         if(a[i].st>d) break;
  19.         cnt++, v.push_back(a[i].nd), d-=a[i].st;
  20.     }
  21.     cout << cnt << '\n';
  22.     for(auto x:v) cout << x << ' ';
  23.     return 0;
  24. }
Success #stdin #stdout 0s 5288KB
comments (?)
stdin
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3 10
2 3
1 4
2 1
1 0
stdout
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2
3 2
https://ideone.com/dbYym1
language:
C++ (gcc 8.3)
created:
2 years ago
visibility:
public

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