제출 #527105

#	제출 시각UTC-0	아이디	문제	언어	결과	실행 시간	메모리
527105	2022-02-17 02:00:27	Leonardo_Paes	이상한 기계 (APIO19_strange_device)	C++17	35 / 100	693 ms	79168 KiB

strange_device

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#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
typedef pair<ll,ll> pii;
#define f first
#define s second
// number x and x + (a / gcd(a, b+1) * b) are equal
ll gcd(ll a, ll b){
  if(b == 0) return a;
  return gcd(b, a%b);
}
bool overflow(ll a, ll b){
  ll v = a*b;
  if(a == v/b) return true;
  return false;
}
const ll inf = 1e18;
int main(){
  ios_base::sync_with_stdio(false);cin.tie(NULL);cout.tie(NULL);
  int n;
  ll a, b;
  cin >> n >> a >> b;
  ll aux = a / (gcd(a, b+1));
  bool ok = overflow(aux, b); 
  ll m = (ok ? aux * b : inf + 1);
  assert(m != inf + 1);
 
 
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