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  1. #include <iostream>
  2. #include <cmath>
  3. #include<array>
  4. #include<string>
  5. #include<algorithm>
  6. #include<cstdlib>
  7. #include <string.h>
  8. #define ll long long
  9. #include <bits/stdc++.h>
  10. using namespace std;
  11.  
  12. struct rec {
  13.     int x , y ;
  14. };
  15.  
  16. bool ca(rec a, rec b) {
  17.     return a.x < b.x;
  18. }
  19.  
  20.  
  21. signed main() {
  22.     ios_base::sync_with_stdio(false), cin.tie(nullptr), cout.tie(nullptr);
  23.  
  24.     int s , n ;
  25.     cin >> s >> n;
  26.     //int ctrl = 0;
  27.  
  28.     rec arr[n];
  29.     for (int i = 0; i < n; i++) {
  30.         cin >> arr[i].x >> arr[i].y;
  31.     }
  32.     sort(arr, arr + n , ca);
  33.  
  34.     /*if (s > arr[0].x) {
  35.         ctrl++;
  36.         s = s + n ;
  37.     }*/
  38.  
  39.     for (int i = 0; i < n; i++) {
  40.         if (s > arr[i].x) {
  41.             //ctrl++;
  42.             s += arr[i].y ;
  43.         }
  44.         else {
  45.             //ctrl = 0;
  46.             cout << "No" << endl;
  47.             return 0;
  48.         }
  49.     }
  50.  
  51.  
  52.     cout << "Yes" << endl ;
  53.  
  54.  
  55. }
  56.  
  57.  
  58.  
Success #stdin #stdout 0.01s 5272KB
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https://ideone.com/NpSgmH
language:
C++ (gcc 8.3)
created:
7 days ago
visibility:
public

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