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Submission #872164

# Submission time Handle Problem Language Result Execution time Memory
872164 2023-11-12T12:03:28 Z SalihSahin Euklid (COCI20_euklid) C++14
4 / 110
 2 ms 348 KB 
#include<bits/stdc++.h>
#define pb push_back
#define mp make_pair
#define int long long 
using namespace std;

const int N = 2e5 + 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;
        if(g == h){
            cout<<g<<" "<<g<<endl;
            continue;
        }

        int a = g * (h/g + (h%g ? 1 : 0));
        int b = -1;
        for(int i = g; i <= N; i += g){
            if(gcd(i, a) == g && r(i, a) == h){
                b = i;
                break;
            }
        }

        cout<<a<<" "<<b<<endl;
        //if(b == -1) cout<<"ah be"<<endl;
        //else if(gcd(a, b) == g && r(a, b) == h) cout<<1<<endl;
        //else cout<<0<<endl;

        /*
        for(int i = g; i <= 200; i += g){
            for(int j = i; j <= 200; j += g){
                if(gcd(i, j) == g && r(i, j) == h){
                    cout<<i<<" "<<j<<endl;
                }
            }
        }
        */
    }
    return 0;
}

Subtask #1
4.0 / 4.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 344 KB Output is correct

Subtask #2
0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Incorrect 0 ms 348 KB Integer parameter [name=b] equals to -1, violates the range [1, 10^18]
4 Halted 0 ms 0 KB -

Subtask #3
0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Incorrect 0 ms 348 KB Integer parameter [name=b] equals to -1, violates the range [1, 10^18]
3 Halted 0 ms 0 KB -

Subtask #4
0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Incorrect 2 ms 348 KB Integer parameter [name=b] equals to -1, violates the range [1, 10^18]
4 Halted 0 ms 0 KB -

Subtask #5
0 / 40.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Incorrect 2 ms 348 KB Integer parameter [name=b] equals to -1, violates the range [1, 10^18]
4 Halted 0 ms 0 KB -

Subtask #6
0 / 35.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 344 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Incorrect 0 ms 348 KB Integer parameter [name=b] equals to -1, violates the range [1, 10^18]
9 Halted 0 ms 0 KB -