oj.uz

Submission #374457

# Submission time Handle Problem Language Result Execution time Memory
374457 2021-03-07T10:00:01 Z Vimmer Euklid (COCI20_euklid) C++14
35 / 110
 152 ms 1148 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)
            pri(pt[gc][bd].F _ pt[gc][bd].S);
            else
        {
            pair <int, int> pt = fnd(gc, bd);

            if (pt.F == 0)
                assert(0);

            pri(pt.F _ pt.S);
        }
    }
}

Subtask #1
4.0 / 4.0

# Verdict Execution time Memory Grader output
1 Correct 148 ms 620 KB Output is correct
2 Correct 147 ms 608 KB Output is correct
3 Correct 148 ms 620 KB Output is correct
4 Correct 147 ms 748 KB Output is correct
5 Correct 148 ms 620 KB Output is correct

Subtask #2
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 148 ms 656 KB Output is correct
2 Correct 148 ms 748 KB Output is correct
3 Correct 147 ms 620 KB Output is correct
4 Correct 147 ms 796 KB Output is correct
5 Correct 148 ms 620 KB Output is correct
6 Correct 148 ms 748 KB Output is correct
7 Correct 147 ms 620 KB Output is correct
8 Correct 147 ms 748 KB Output is correct
9 Correct 150 ms 748 KB Output is correct

Subtask #3
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 147 ms 724 KB Output is correct
2 Correct 147 ms 620 KB Output is correct
3 Correct 147 ms 748 KB Output is correct
4 Correct 147 ms 620 KB Output is correct
5 Correct 149 ms 748 KB Output is correct
6 Correct 147 ms 620 KB Output is correct
7 Correct 148 ms 620 KB Output is correct
8 Correct 148 ms 620 KB Output is correct

Subtask #4
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 151 ms 620 KB Output is correct
2 Correct 148 ms 748 KB Output is correct
3 Correct 152 ms 620 KB Output is correct
4 Correct 150 ms 620 KB Output is correct
5 Correct 149 ms 748 KB Output is correct
6 Correct 148 ms 620 KB Output is correct
7 Correct 149 ms 620 KB Output is correct
8 Correct 148 ms 620 KB Output is correct
9 Correct 147 ms 620 KB Output is correct
10 Correct 148 ms 620 KB Output is correct

Subtask #5
0 / 40.0

# Verdict Execution time Memory Grader output
1 Correct 151 ms 620 KB Output is correct
2 Correct 148 ms 748 KB Output is correct
3 Correct 152 ms 620 KB Output is correct
4 Correct 150 ms 620 KB Output is correct
5 Correct 149 ms 748 KB Output is correct
6 Correct 148 ms 620 KB Output is correct
7 Correct 149 ms 620 KB Output is correct
8 Correct 148 ms 620 KB Output is correct
9 Correct 147 ms 620 KB Output is correct
10 Correct 148 ms 620 KB Output is correct
11 Runtime error 149 ms 1148 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 148 ms 620 KB Output is correct
2 Correct 147 ms 608 KB Output is correct
3 Correct 148 ms 620 KB Output is correct
4 Correct 147 ms 748 KB Output is correct
5 Correct 148 ms 620 KB Output is correct
6 Correct 148 ms 656 KB Output is correct
7 Correct 148 ms 748 KB Output is correct
8 Correct 147 ms 620 KB Output is correct
9 Correct 147 ms 796 KB Output is correct
10 Correct 148 ms 620 KB Output is correct
11 Correct 148 ms 748 KB Output is correct
12 Correct 147 ms 620 KB Output is correct
13 Correct 147 ms 748 KB Output is correct
14 Correct 150 ms 748 KB Output is correct
15 Correct 147 ms 724 KB Output is correct
16 Correct 147 ms 620 KB Output is correct
17 Correct 147 ms 748 KB Output is correct
18 Correct 147 ms 620 KB Output is correct
19 Correct 149 ms 748 KB Output is correct
20 Correct 147 ms 620 KB Output is correct
21 Correct 148 ms 620 KB Output is correct
22 Correct 148 ms 620 KB Output is correct
23 Correct 151 ms 620 KB Output is correct
24 Correct 148 ms 748 KB Output is correct
25 Correct 152 ms 620 KB Output is correct
26 Correct 150 ms 620 KB Output is correct
27 Correct 149 ms 748 KB Output is correct
28 Correct 148 ms 620 KB Output is correct
29 Correct 149 ms 620 KB Output is correct
30 Correct 148 ms 620 KB Output is correct
31 Correct 147 ms 620 KB Output is correct
32 Correct 148 ms 620 KB Output is correct
33 Runtime error 149 ms 1148 KB Execution killed with signal 11
34 Halted 0 ms 0 KB -