Submission #872248

#	Time	Username	Problem	Language	Result	Execution time	Memory
872248		NotLinux	Euklid (COCI20_euklid)	C++17	35 / 110	615 ms	600 KiB

euklid

#include <bits/stdc++.h>
using namespace std;
#define int long long
const int N = 300000;
inline int rand(int l, int r){
	  static mt19937 
	  rng(chrono::steady_clock::now().time_since_epoch().count());
 
	  uniform_int_distribution<int> ludo(l, r); 
	  return ludo(rng);
}
inline int gcd(int a, int b){
	if(a > b)return gcd(b,a);
	else if(a == 0)return b;
	else return gcd(b%a,a);
}
inline int R(int a, int b){
	if(a < b)return R(b,a);
	else if(a >= b and b > 1)return R(a/b,b);
	else return a;
}
void solve(){
	int g,h;
	cin >> g >> h;
	if(g == h)cout << h << " " << h << endl;
	else if(h == 2)cout << 2*g << " " << g << endl;
	else if(g == (h*h))cout << h*h << " " << h*h*h << endl;
	else{
		for(int i = g;i<=N;i+=g){
			for(int j = i+g;j<=N;j+=g){
				if(R(i,j) == h and gcd(i,j) == g){
					cout << i << " " << j << endl;
					return;
				}
			}
		}
	}
}
signed main(){
	ios_base::sync_with_stdio(0);cin.tie(0);
	int testcase = 1;cin >> testcase;
	while(testcase--)solve();
}

• Subtask 1: 4 / 4
• Subtask 2: 8 / 8
• Subtask 3: 8 / 8
• Subtask 4: 15 / 15
• Subtask 5: 0 / 40
• Subtask 6: 0 / 35