fork download
copy 
  1. #include <bits/stdc++.h>
  2. using namespace std;
  3.  
  4. int main() {
  5. 	int t;
  6.     cin >> t;
  7.     while (t--) {
  8.         long long n, k;
  9.         cin >> n >> k;
  10.  
  11.         if (n >= k * k && (n % 2 == k % 2))
  12.             cout << "YES\n";
  13.         else
  14.             cout << "NO\n";
  15.     }
  16. 	return 0;
  17. }
Success #stdin #stdout 0.01s 5320KB
comments (?)
stdin
copy 
6
3 1
4 2
10 3
10 2
16 4
16 5
stdout
copy 
YES
YES
NO
YES
YES
NO
https://ideone.com/FuRK66
language:
C++ (gcc 8.3)
created:
3 days ago
visibility:
public

Share or Embed source code

Discover > Sphere Engine API

The brand new service which powers Ideone!

Discover > IDE Widget

Widget for compiling and running the source code in a web browser!