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  1. #include<bits/stdc++.h>
  2. using namespace std;
  3. #define ll long long
  4. #define pb push_back
  5. #define R return
  6. #define fi first
  7. #define se second
  8. #define yes cout<<"YES\n";
  9. #define no cout<<"NO\n";
  10. const int N=2e5+7;
  11. ll T=1;
  12. void solve()
  13. {
  14.     int n,q;
  15.     cin >> n >> q;
  16.     int a[n+1];
  17.     for(int i=1;i<=n;i++){
  18.         cin >> a[i];
  19.     }
  20.     while(q--){
  21.         int x;
  22.         cin >> x;
  23.  
  24.         int l=1,r=n,mid,ans = 0;
  25.         while(l<=r){
  26.  
  27.            mid = (l+r)/2;
  28.  
  29.            if(a[mid] == x){
  30.                 ans = mid;
  31.                 break;
  32.            }
  33.            else if(a[mid]>x){
  34.               r = mid - 1;
  35.            }
  36.            else{
  37.               l = mid + 1;
  38.            }
  39.         }
  40.         if(ans)
  41.         cout << "YES\n";
  42.         else
  43.         cout << "NO\n";
  44.     }
  45.  
  46. }
  47. int main()
  48. {
  49.     ios::sync_with_stdio(NULL);
  50.     cin.tie(0);
  51.     cout.tie(0);
  52.     //cin>>T;
  53.     while(T--)
  54.         solve();
  55.     R 0;
  56. }
Success #stdin #stdout 0.01s 5312KB
comments (?)
stdin
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10 10
1 61 126 217 2876 6127 39162 98126 712687 1000000000
100 6127 1 61 200 -10000 1 217 10000 1000000000
stdout
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NO
YES
YES
YES
NO
NO
YES
YES
NO
YES
https://ideone.com/sB9pVt
language:
C++ (gcc 8.3)
created:
1 day ago
visibility:
public

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