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Submission #336212

# Submission time Handle Problem Language Result Execution time Memory
336212 2020-12-15T02:43:05 Z wiwiho Euklid (COCI20_euklid) C++14
35 / 110
 1000 ms 9456 KB 
#include<bits/stdc++.h>

#define iter(a) a.begin(), a.end()
#define pll pair<ll, ll>
#define pii pair<int, int>
#define mp make_pair
#define F first
#define S second
#define lsort(a) sort(iter(a))
#define eb emplace_back
#define gsort(a) sort(iter(a), greater<>());

using namespace std;

typedef long long ll;

ll R(ll a, ll b){
    while(b > 1){
        if(a < b) swap(a, b);
        a /= b;
        //cerr << a << " " << b << "\n";
    }
    return a;
}

vector<ll> lpd, prime;

void sieve(int n){
    lpd.resize(n + 1, 1);
    for(int i = 2; i <= n; i++){
        if(lpd[i] == 1){
            prime.eb(i);
            lpd[i] = i;
        }
        for(ll j : prime){
            if(i * j > n) break;
            lpd[i * j] = j;
            if(j == lpd[i]) break;
        }
    }
}

int main(){
    ios_base::sync_with_stdio(false);
    cin.tie(0);

    sieve(1000000);

    int T;
    cin >> T;
    while(T--){
        ll g, h;
        cin >> g >> h;

        ll a = -1, b = -1;
        if(g == h){
            a = b = g;
        }
        else if(h == 2){
            a = g * 2;
            b = g;
        }
        else if(g == h * h){
            a = g * h;
            b = g;
        }
        else{
            for(ll i = 1; i <= 5000; i++){
                for(ll j = 1; j <= 5000; j++){
                    if(__gcd(i, j) == 1 && R(g * i, g * j) == h){
                        a = g * i, b = g * j;
                        goto ok;
                    }
                }
            }
        }
        ok:;

        //assert(__gcd(a, b) == g && R(a, b) == h);
        cout << a << " " << b << "\n";

    }

    return 0;
}

Subtask #1
4.0 / 4.0

# Verdict Execution time Memory Grader output
1 Correct 15 ms 9324 KB Output is correct
2 Correct 15 ms 9324 KB Output is correct
3 Correct 15 ms 9324 KB Output is correct
4 Correct 15 ms 9324 KB Output is correct
5 Correct 18 ms 9324 KB Output is correct

Subtask #2
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 15 ms 9324 KB Output is correct
2 Correct 16 ms 9324 KB Output is correct
3 Correct 15 ms 9324 KB Output is correct
4 Correct 15 ms 9324 KB Output is correct
5 Correct 15 ms 9324 KB Output is correct
6 Correct 15 ms 9324 KB Output is correct
7 Correct 15 ms 9324 KB Output is correct
8 Correct 15 ms 9324 KB Output is correct
9 Correct 15 ms 9368 KB Output is correct

Subtask #3
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 17 ms 9324 KB Output is correct
2 Correct 15 ms 9324 KB Output is correct
3 Correct 16 ms 9456 KB Output is correct
4 Correct 15 ms 9324 KB Output is correct
5 Correct 15 ms 9324 KB Output is correct
6 Correct 16 ms 9324 KB Output is correct
7 Correct 17 ms 9324 KB Output is correct
8 Correct 14 ms 9324 KB Output is correct

Subtask #4
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 37 ms 9324 KB Output is correct
2 Correct 42 ms 9324 KB Output is correct
3 Correct 28 ms 9324 KB Output is correct
4 Correct 24 ms 9324 KB Output is correct
5 Correct 22 ms 9324 KB Output is correct
6 Correct 20 ms 9324 KB Output is correct
7 Correct 21 ms 9324 KB Output is correct
8 Correct 21 ms 9324 KB Output is correct
9 Correct 23 ms 9324 KB Output is correct
10 Correct 22 ms 9324 KB Output is correct

Subtask #5
0 / 40.0

# Verdict Execution time Memory Grader output
1 Correct 37 ms 9324 KB Output is correct
2 Correct 42 ms 9324 KB Output is correct
3 Correct 28 ms 9324 KB Output is correct
4 Correct 24 ms 9324 KB Output is correct
5 Correct 22 ms 9324 KB Output is correct
6 Correct 20 ms 9324 KB Output is correct
7 Correct 21 ms 9324 KB Output is correct
8 Correct 21 ms 9324 KB Output is correct
9 Correct 23 ms 9324 KB Output is correct
10 Correct 22 ms 9324 KB Output is correct
11 Correct 23 ms 9324 KB Output is correct
12 Execution timed out 1085 ms 9324 KB Time limit exceeded
13 Halted 0 ms 0 KB -

Subtask #6
0 / 35.0

# Verdict Execution time Memory Grader output
1 Correct 15 ms 9324 KB Output is correct
2 Correct 15 ms 9324 KB Output is correct
3 Correct 15 ms 9324 KB Output is correct
4 Correct 15 ms 9324 KB Output is correct
5 Correct 18 ms 9324 KB Output is correct
6 Correct 15 ms 9324 KB Output is correct
7 Correct 16 ms 9324 KB Output is correct
8 Correct 15 ms 9324 KB Output is correct
9 Correct 15 ms 9324 KB Output is correct
10 Correct 15 ms 9324 KB Output is correct
11 Correct 15 ms 9324 KB Output is correct
12 Correct 15 ms 9324 KB Output is correct
13 Correct 15 ms 9324 KB Output is correct
14 Correct 15 ms 9368 KB Output is correct
15 Correct 17 ms 9324 KB Output is correct
16 Correct 15 ms 9324 KB Output is correct
17 Correct 16 ms 9456 KB Output is correct
18 Correct 15 ms 9324 KB Output is correct
19 Correct 15 ms 9324 KB Output is correct
20 Correct 16 ms 9324 KB Output is correct
21 Correct 17 ms 9324 KB Output is correct
22 Correct 14 ms 9324 KB Output is correct
23 Correct 37 ms 9324 KB Output is correct
24 Correct 42 ms 9324 KB Output is correct
25 Correct 28 ms 9324 KB Output is correct
26 Correct 24 ms 9324 KB Output is correct
27 Correct 22 ms 9324 KB Output is correct
28 Correct 20 ms 9324 KB Output is correct
29 Correct 21 ms 9324 KB Output is correct
30 Correct 21 ms 9324 KB Output is correct
31 Correct 23 ms 9324 KB Output is correct
32 Correct 22 ms 9324 KB Output is correct
33 Correct 23 ms 9324 KB Output is correct
34 Execution timed out 1085 ms 9324 KB Time limit exceeded
35 Halted 0 ms 0 KB -