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  1. #include <bits/stdc++.h>
  2. using namespace std;
  3. using ll = long long;
  4. ll x;
  5. bool uoca(long long x, long long a) {
  6.     if (x == 0) return false;
  7.     return (a % x == 0);
  8. }
  9. bool uocb(long long x , long long b){
  10.     if ( x == 0) return false;
  11.     return ( b % (3*x) == 0);
  12. }
  13. int main(){
  14.     ios::sync_with_stdio(false);
  15.     cin.tie(nullptr);
  16.    // freopen("TONGUOC.INP" , "r" , stdin);
  17.    // freopen("TONGUOC.OUT" , "w" , stdout);
  18.     ll a , b;
  19.     cin >> a >> b;
  20.     ll s = 0;
  21.     for( int x =1 ; x * 3 <= b && x <= a ; x++ ){
  22.            if( uoca(x,a) && uocb(x,b) ) s+=x;
  23.     }
  24.     cout << s;
  25.     return 0;
  26.  
  27. }
  28.  
Success #stdin #stdout 0.01s 5276KB
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https://ideone.com/2tEGIh
language:
C++ (gcc 8.3)
created:
4 days ago
visibility:
public

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