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  1. #include <bits/stdc++.h>
  2. using namespace std;
  3. #define  ll  long long int
  4. int main(){
  5. 	ll b, m  ;
  6. 	cin >> m >> b;
  7. 	ll ans = 0LL;
  8. 	for(ll x = 0; x <= b *m ; x++){
  9. 		if(x % m  == 0){
  10. 			ll tmp = x *(-1) / m;
  11. 			if(tmp + b >= 0){
  12. 			  ll y = tmp + b;
  13. 			  ll t1 , t2;
  14. 			  t1 = x * (x + 1); t1 /= 2; t1 *= y + 1; t2 = y * (y + 1); t2 /= 2; t2 *= x + 1;
  15. 			  ans = max(ans , t1 + t2);
  16. 			}
  17. 		}
  18. 	}
  19. 	cout << ans ;
  20. }
Success #stdin #stdout 0s 16064KB
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https://ideone.com/JAPM51
language:
C++ (gcc 8.3)
created:
6 years ago
visibility:
public

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