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  1. #include <bits/stdc++.h>
  2. using namespace std;
  3.  
  4. int main()
  5. {
  6.   int t, n, x, even, odd;
  7.   cin >> t;
  8.  
  9.   for (int i = 1; i <= t; i++)
  10.   {
  11.     cin >> n;
  12.  
  13.     n *= 2;
  14.     even = odd = 0;
  15.  
  16.     while (n--)
  17.     {
  18.       cin >> x;
  19.       if (x & 1) odd++;
  20.       else even++;
  21.     }
  22.  
  23.     cout << "Test case " << i << ": ";
  24.     if (even != odd) cout << "No" << endl;
  25.     else cout << "Yes" << endl;
  26.   }
  27.  
  28.   return 0;
  29. }
  30.  
Success #stdin #stdout 0.01s 5440KB
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stdin
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4
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2  3  4  5
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2  3  4  5  5  5
1
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1  5  3  2  6  7  3  4
stdout
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Test case 1: Yes
Test case 2: No
Test case 3: Yes
Test case 4: No
https://ideone.com/gfNE3w
Contest 43: D. Pair Pair
https://c...content-available-to-author-only...o.win/contest/43/problem/D
language:
C++14 (gcc 8.3)
created:
1 year ago
visibility:
public

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