답안 #872174

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
872174	2023-11-12T12:31:23 Z	SalihSahin	Euklid (COCI20_euklid)	C++14	8 / 110	0 ms	348 KB

euklid

#include<bits/stdc++.h>
#define pb push_back
#define mp make_pair
#define int long long 
using namespace std;

const int N = 4e10 + 5;
const int mod = 1e9+7;
const int inf = 1e18 + 10;
const int L = 20 * 20 * 20;

int gcd(int a, int b){
    if(a < b) swap(a, b);
    if(b == 0) return a;
    return gcd(b, a%b);
}

int R(int a, int b){
    if(a < b) swap(a, b);
    if(b == 1) return a;
    return R(a/b, b);
}

int32_t main(){
    ios_base::sync_with_stdio(false);
    cin.tie(0);
    int t;
    cin>>t;
    while(t--){
        int g, h;
        cin>>g>>h;
        while(h*h > g) g *= h;

        int a1 = 0, a2 = 0;

        for(int i = g; i <= N; i += g){
            int l = i * h / g * g - g;
            for(int j = l; j < i * (h + 1); j += g){
                if(gcd(i, j) == g && R(i, j) == h){
                    a1 = i, a2 = j;
                    break;
                }
            }

            if(a1 > 0) break;
        }

        cout<<a1<<" "<<a2<<endl;
    }
    
    /*
    vector<pair<int, int> > test;
    for(int i = 100; i < 300; i++){
        for(int j = 2; j < 6; j++){
            test.pb(mp(i, j));
        }
    }

    for(auto itr: test){
        int g = itr.first, h = itr.second;

        int a1 = 0, a2 = 0;

        for(int i = g; i <= N; i += g){
            int l = i * h / g * g - g;
            for(int j = l; j < i * (h + 1); j += g){
                if(gcd(i, j) == g && R(i, j) == h){
                    a1 = i, a2 = j;
                    break;
                }
            }

            if(a1 > 0) break;
        }

        cout<<g<<" "<<h<<" -> "<<a1<<" "<<a2<<endl;
    }
    */
    return 0;
}

Subtask #1
0 / 4.0

#	결과	실행 시간	메모리	Grader output
1	Incorrect	0 ms	348 KB	Output isn't correct
2	Halted	0 ms	0 KB	-

Subtask #2
0 / 8.0

#	결과	실행 시간	메모리	Grader output
1	Incorrect	0 ms	348 KB	Output isn't correct
2	Halted	0 ms	0 KB	-

Subtask #3
8.0 / 8.0

#	결과	메모리	Grader output
1	Correct	348 KB	Output is correct
2	Correct	344 KB	Output is correct
3	Correct	348 KB	Output is correct
4	Correct	348 KB	Output is correct
5	Correct	348 KB	Output is correct
6	Correct	348 KB	Output is correct
7	Correct	348 KB	Output is correct
8	Correct	348 KB	Output is correct