Submission #872264

#	Time	Username	Problem	Language	Result	Execution time	Memory
872264		NotLinux	Euklid (COCI20_euklid)	C++17	110 / 110	1 ms	600 KiB

euklid

#include <bits/stdc++.h>
using namespace std;
#define int long long
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;
}
int g,h;
void solve(){
	cin >> g >> h;
	int l = h , r = 2 * h - 1;
	while(true){
		if((l + (g - l%g)) <= r){
			int k = (l + (g - l%g)) / g;
			if(R(g*k,g*k*h+g) == h){
				cout << g * k << " " << g * k * h + g << endl;
				return;
			}
		}
		l *= h;
		r *= h;
	}
}
signed main(){
	ios_base::sync_with_stdio(0);cin.tie(0);
	int testcase;cin >> testcase;
	while(testcase--)solve();
}

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