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Submission #336213

# Submission time Handle Problem Language Result Execution time Memory
336213 2020-12-15T02:44:29 Z wiwiho Euklid (COCI20_euklid) C++14
35 / 110
 631 ms 9488 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 <= 2000; i++){
                for(ll j = 1; j <= 2000; 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 14 ms 9324 KB Output is correct
4 Correct 15 ms 9324 KB Output is correct
5 Correct 15 ms 9324 KB Output is correct

Subtask #2
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 15 ms 9488 KB Output is correct
2 Correct 14 ms 9324 KB Output is correct
3 Correct 16 ms 9324 KB Output is correct
4 Correct 15 ms 9324 KB Output is correct
5 Correct 17 ms 9324 KB Output is correct
6 Correct 14 ms 9324 KB Output is correct
7 Correct 14 ms 9324 KB Output is correct
8 Correct 15 ms 9324 KB Output is correct
9 Correct 15 ms 9324 KB Output is correct

Subtask #3
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 14 ms 9324 KB Output is correct
2 Correct 14 ms 9324 KB Output is correct
3 Correct 16 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 16 ms 9324 KB Output is correct
7 Correct 18 ms 9324 KB Output is correct
8 Correct 15 ms 9324 KB Output is correct

Subtask #4
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 23 ms 9324 KB Output is correct
2 Correct 23 ms 9324 KB Output is correct
3 Correct 21 ms 9324 KB Output is correct
4 Correct 20 ms 9324 KB Output is correct
5 Correct 18 ms 9324 KB Output is correct
6 Correct 18 ms 9324 KB Output is correct
7 Correct 17 ms 9324 KB Output is correct
8 Correct 17 ms 9324 KB Output is correct
9 Correct 17 ms 9324 KB Output is correct
10 Correct 16 ms 9324 KB Output is correct

Subtask #5
0 / 40.0

# Verdict Execution time Memory Grader output
1 Correct 23 ms 9324 KB Output is correct
2 Correct 23 ms 9324 KB Output is correct
3 Correct 21 ms 9324 KB Output is correct
4 Correct 20 ms 9324 KB Output is correct
5 Correct 18 ms 9324 KB Output is correct
6 Correct 18 ms 9324 KB Output is correct
7 Correct 17 ms 9324 KB Output is correct
8 Correct 17 ms 9324 KB Output is correct
9 Correct 17 ms 9324 KB Output is correct
10 Correct 16 ms 9324 KB Output is correct
11 Incorrect 631 ms 9324 KB Integer parameter [name=a] equals to -1, violates the range [1, 10^18]
12 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 14 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 9488 KB Output is correct
7 Correct 14 ms 9324 KB Output is correct
8 Correct 16 ms 9324 KB Output is correct
9 Correct 15 ms 9324 KB Output is correct
10 Correct 17 ms 9324 KB Output is correct
11 Correct 14 ms 9324 KB Output is correct
12 Correct 14 ms 9324 KB Output is correct
13 Correct 15 ms 9324 KB Output is correct
14 Correct 15 ms 9324 KB Output is correct
15 Correct 14 ms 9324 KB Output is correct
16 Correct 14 ms 9324 KB Output is correct
17 Correct 16 ms 9324 KB Output is correct
18 Correct 15 ms 9324 KB Output is correct
19 Correct 18 ms 9324 KB Output is correct
20 Correct 16 ms 9324 KB Output is correct
21 Correct 18 ms 9324 KB Output is correct
22 Correct 15 ms 9324 KB Output is correct
23 Correct 23 ms 9324 KB Output is correct
24 Correct 23 ms 9324 KB Output is correct
25 Correct 21 ms 9324 KB Output is correct
26 Correct 20 ms 9324 KB Output is correct
27 Correct 18 ms 9324 KB Output is correct
28 Correct 18 ms 9324 KB Output is correct
29 Correct 17 ms 9324 KB Output is correct
30 Correct 17 ms 9324 KB Output is correct
31 Correct 17 ms 9324 KB Output is correct
32 Correct 16 ms 9324 KB Output is correct
33 Incorrect 631 ms 9324 KB Integer parameter [name=a] equals to -1, violates the range [1, 10^18]
34 Halted 0 ms 0 KB -