oj.uz

Submission #374449

# Submission time Handle Problem Language Result Execution time Memory
374449 2021-03-07T09:57:53 Z Vimmer Euklid (COCI20_euklid) C++14
35 / 110
 160 ms 1260 KB 
#include <bits/stdc++.h>
//#include <ext/pb_ds/assoc_container.hpp>
//#include <ext/pb_ds/tree_policy.hpp>

//#pragma GCC optimize("unroll-loops")
//#pragma GCC optimize("-O3")
//#pragma GCC optimize("Ofast")

#define N 1005
#define NN 1005000
#define PB push_back
#define M ll(1e9 + 7)
#define all(x) x.begin(), x.end()
#define sz(x) int(x.size())
#define pri(x) cout << x << endl
#define endl '\n'
#define _ << " " <<
#define F first
#define S second

using namespace std;
//using namespace __gnu_pbds;

//typedef tree <int, null_type, less <int>, rb_tree_tag, tree_order_statistics_node_update> oredered_set;

typedef long long ll;
typedef long double ld;
typedef unsigned long long ull;
typedef short int si;

int brd(int a, int b)
{
    if (b > a)
        swap(a, b);

    if (b == 1)
        return a;

    return brd(a / b, b);
}

int gc(int a, int b)
{
    if (a > b)
        swap(a, b);

    if (a == 0)
        return b;

    return gc(b, b % a);
}

pair <int, int> pt[210][210];

pair <int, int> fnd(int gc, int x)
{
    int p = (x + x) / gc;

    int r = p * gc;

    if (r == x + x)
        r -= gc;

    p = x / gc;

    int l = p * gc;

    if (l != x)
        l += gc;

    for (int y = l; y <= r; y += gc)
            {
                if (__gcd(y, x) == gc) return {y, x};

                for (int t = x * y; t < (x + 1) * y; t++)
                    if (__gcd(y, t) == gc)
                        return {y, t};
            }

    for (int y = x; y < x + x; y++)
    {
        if (y % gc == 0) continue;

        r = (y * (x + 1));

        r /= gc;

        r *= gc;

        if (r == (y * (x + 1)))
            r -= gc;

        l = (y * x) / gc;

        l *= gc;

        if (l != y * x)
            l += gc;

        for (int nx = l; nx <= r; nx += gc)
        {
            for (int t = nx * y; t < nx * (y + 1); t++)
                if (__gcd(t, nx) == gc)
                    return {nx, t};
        }
    }

    return {0, 0};
}

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

    //freopen("1.in", "r", stdin);

    for (int i = 1; i <= 200; i++)
        for (int j = 2; j <= 200; j++)
        {
            pt[i][j] = fnd(i, j);
        }

    for (int i = 2; i <= 1000; i++)
        for (int j = 2; j <= 1000; j++)
        {
            int gc = __gcd(i, j);

            int bd = brd(i, j);

            if (gc > 200 || bd > 200) continue;

            if (pt[gc][bd].F != 0) continue;

            pt[gc][bd] = {i, j};
        }

//    int kol = 0;
//
//    for (int i = 1; i <= 200; i++)
//        for (int j = 2; j <= 200; j++)
//            if (pt[i][j].F == 0)
//                {
//                    kol++;
//                }

//    pri(kol);

    int q;

    cin >> q;

    for (; q > 0; q--)
    {
        ll gc, bd;

        cin >> gc >> bd;

        if (gc == bd)
        {
            pri(gc _ bd);

            continue;
        }

        if (bd == 2)
        {
            pri(gc + gc _ gc);

            continue;
        }

        if (gc == bd && bd == 1)
        {
            pri(3 _ 2);

            continue;
        }

        if (bd * bd == gc)
        {
            pri(gc _ bd * gc);

            continue;
        }

        if (pt[gc][bd].F == 0)
            assert(0);

        pri(pt[gc][bd].F _ pt[gc][bd].S);
    }
}

Subtask #1
4.0 / 4.0

# Verdict Execution time Memory Grader output
1 Correct 152 ms 620 KB Output is correct
2 Correct 152 ms 748 KB Output is correct
3 Correct 152 ms 620 KB Output is correct
4 Correct 155 ms 748 KB Output is correct
5 Correct 153 ms 620 KB Output is correct

Subtask #2
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 156 ms 620 KB Output is correct
2 Correct 155 ms 620 KB Output is correct
3 Correct 154 ms 620 KB Output is correct
4 Correct 152 ms 804 KB Output is correct
5 Correct 156 ms 620 KB Output is correct
6 Correct 152 ms 748 KB Output is correct
7 Correct 152 ms 620 KB Output is correct
8 Correct 154 ms 748 KB Output is correct
9 Correct 155 ms 620 KB Output is correct

Subtask #3
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 153 ms 748 KB Output is correct
2 Correct 152 ms 620 KB Output is correct
3 Correct 160 ms 620 KB Output is correct
4 Correct 152 ms 748 KB Output is correct
5 Correct 152 ms 620 KB Output is correct
6 Correct 152 ms 748 KB Output is correct
7 Correct 152 ms 764 KB Output is correct
8 Correct 152 ms 748 KB Output is correct

Subtask #4
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 153 ms 748 KB Output is correct
2 Correct 155 ms 724 KB Output is correct
3 Correct 152 ms 620 KB Output is correct
4 Correct 152 ms 748 KB Output is correct
5 Correct 152 ms 748 KB Output is correct
6 Correct 152 ms 956 KB Output is correct
7 Correct 155 ms 620 KB Output is correct
8 Correct 152 ms 724 KB Output is correct
9 Correct 153 ms 620 KB Output is correct
10 Correct 155 ms 748 KB Output is correct

Subtask #5
0 / 40.0

# Verdict Execution time Memory Grader output
1 Correct 153 ms 748 KB Output is correct
2 Correct 155 ms 724 KB Output is correct
3 Correct 152 ms 620 KB Output is correct
4 Correct 152 ms 748 KB Output is correct
5 Correct 152 ms 748 KB Output is correct
6 Correct 152 ms 956 KB Output is correct
7 Correct 155 ms 620 KB Output is correct
8 Correct 152 ms 724 KB Output is correct
9 Correct 153 ms 620 KB Output is correct
10 Correct 155 ms 748 KB Output is correct
11 Runtime error 154 ms 1260 KB Execution killed with signal 11
12 Halted 0 ms 0 KB -

Subtask #6
0 / 35.0

# Verdict Execution time Memory Grader output
1 Correct 152 ms 620 KB Output is correct
2 Correct 152 ms 748 KB Output is correct
3 Correct 152 ms 620 KB Output is correct
4 Correct 155 ms 748 KB Output is correct
5 Correct 153 ms 620 KB Output is correct
6 Correct 156 ms 620 KB Output is correct
7 Correct 155 ms 620 KB Output is correct
8 Correct 154 ms 620 KB Output is correct
9 Correct 152 ms 804 KB Output is correct
10 Correct 156 ms 620 KB Output is correct
11 Correct 152 ms 748 KB Output is correct
12 Correct 152 ms 620 KB Output is correct
13 Correct 154 ms 748 KB Output is correct
14 Correct 155 ms 620 KB Output is correct
15 Correct 153 ms 748 KB Output is correct
16 Correct 152 ms 620 KB Output is correct
17 Correct 160 ms 620 KB Output is correct
18 Correct 152 ms 748 KB Output is correct
19 Correct 152 ms 620 KB Output is correct
20 Correct 152 ms 748 KB Output is correct
21 Correct 152 ms 764 KB Output is correct
22 Correct 152 ms 748 KB Output is correct
23 Correct 153 ms 748 KB Output is correct
24 Correct 155 ms 724 KB Output is correct
25 Correct 152 ms 620 KB Output is correct
26 Correct 152 ms 748 KB Output is correct
27 Correct 152 ms 748 KB Output is correct
28 Correct 152 ms 956 KB Output is correct
29 Correct 155 ms 620 KB Output is correct
30 Correct 152 ms 724 KB Output is correct
31 Correct 153 ms 620 KB Output is correct
32 Correct 155 ms 748 KB Output is correct
33 Runtime error 154 ms 1260 KB Execution killed with signal 11
34 Halted 0 ms 0 KB -