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  1. #include <bits/stdc++.h>
  2. #include <iostream>
  3. #include <vector>
  4. #include <algorithm>
  5. #include <map>
  6. using namespace std;
  7.  
  8. #define vi vector<int>
  9. #define vl vector<int>
  10. #define vll vector<long long>
  11.  
  12. #define saleh ios_base::sync_with_stdio(false);cin.tie(nullptr)
  13. #define all(v) v.begin(), v.end()
  14. #define endl "\n"
  15. #define cni(n) scanf("%d", &n)
  16. #define cnl(n) scanf("%ld", &n)
  17. #define cnll(n) scanf("%lld", &n)
  18. #define cnstr(st) scanf("%s", st)
  19.  
  20. #define couti(n) printf("%d", n)
  21. #define coutl(n) printf("%ld", n)
  22. #define coutll(n) printf("%lld", n)
  23. #define couts printf(" ") // space
  24. #define coutendl printf("\n") // endl
  25. #define coutstr(st) printf("%s", st)
  26.  
  27. bool cmp1(const pair<int,int>p1 , const pair<int,int>p2 ){
  28.     return p1.second>p2.second;
  29. }
  30. bool cmp2(int a, int b ){
  31.     return a>b;
  32. }
  33.  
  34. int main() {
  35.     int t;cni(t);
  36.     while(t--){
  37.         int n;cni(n);
  38.         n/=2;
  39.         int m;cni(m);
  40.         int v , ans=0;
  41.         for(int i =0;i<m;i++){
  42.             cni(v);
  43.             if((n*(n+1))<=v && v%2==0)ans++;
  44.         }
  45.         cout<<ans<<endl;
  46.  
  47.     }
  48.  
  49.  
  50.     return 0;
  51. }
Success #stdin #stdout 0.01s 5304KB
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https://ideone.com/UgEdLW
language:
C++ (gcc 8.3)
created:
29 days ago
visibility:
public

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