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  1. #include<bits/stdc++.h>
  2. using namespace std;
  3. #define IO ios_base::sync_with_stdio(0), cin.tie(0),cout.tie(0)
  4. typedef long long ll;
  5. const int N = 1e5 + 4 , MOD = 1e9 + 7 ;
  6. int n , s , d ;
  7. pair<int, int> p[N] ;
  8. bool ok ;
  9. bool solve(int idx)
  10. {
  11.     if(idx == n + 1)
  12.         return (ok == 1) ;
  13.     if(p[idx].first < s && p[idx].second > d)
  14.         ok = 1 ;
  15.     solve(idx + 1) ;
  16.     return (ok == 1) ;
  17. }
  18. int main() {
  19.     IO ;
  20.     cin>>n>>s>>d ;
  21.     for(int i=1 ; i <= n ; i++)
  22.         cin>>p[i].first>>p[i].second ;
  23.     if(solve(1) == 1)
  24.         cout<<"Yes\n" ;
  25.     else
  26.         cout<<"No\n" ;
  27.  
  28.     return 0;
  29. }
Success #stdin #stdout 0.01s 5312KB
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https://ideone.com/pRanSI
language:
C++14 (gcc 8.3)
created:
311 days ago
visibility:
public

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