BOJ 9094 - 수학적 호기심 [C++]

문제

링크

풀이

#include <iostream>
using namespace std;
 
void solve(void) {
  int n, m; cin >> n >> m;
 
  int ans = 0;
  for (int a=1; a<n-1; a++) {
    for (int b=a+1; b<n; b++) {
      if ((a*a+b*b+m) % (a*b) == 0) ans++;
    }
  }
  cout << ans << "\n";
}
 
int main(void) {
  ios::sync_with_stdio(false);
  cin.tie(nullptr);
 
  int t; cin >> t;
  while (t--) solve();
  return 0;
}