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ID题目提交者结果用时内存语言文件大小提交时间测评时间
#749055#9622. 有限小数AmiyaCastWA 6ms3668kbC++201.7kb2024-11-14 22:30:142024-11-14 22:30:16

Judging History

你现在查看的是最新测评结果

  • [2024-11-14 22:30:16]
  • 评测
  • 测评结果:WA
  • 用时:6ms
  • 内存:3668kb
  • [2024-11-14 22:30:14]
  • 提交

answer

#include <bits/stdc++.h>
using namespace std;
#define int long long
#define pii pair<int, int>
const int P = 998244353;

int exgcd(int a, int b, int &x, int &y){
    if (!b) {
        x = 1, y = 0;
        return a;
    }
    int d = exgcd(b, a % b, y, x);
    y -= a / b * x;
    return d;
}

int ex(int a, int b, int c, int &x, int &y)
{
    int g = exgcd(a, b, x, y);
    x *= c / g, y *= c / g;
    int p = b / g, q = a / g;

    if (x <= 0) {
        y -= (p - x) / p * q;
        x += (p - x) / p * p;
    } else {
        y += (x - 1) / p * q;
        x -= (x - 1) / p * p;
    }

    if (y <= 0) {
        return 0;
    } else {
        return 1;
    }
}
int zhi(int x)
{
    int z = 1, t = x;
    for (int i = 2; i * i <= x; i++)
    {
        while (t % i == 0)
        {
            t /= i;
            if (i != 2 && i != 5) z *= i;
        }
    }
    if (t > 1 && (t != 2 && t != 5)) z *= t;
    return z;
}

void solve()
{
    int aa, bb;
    cin >> aa >> bb;
    int z = zhi(bb);
    if (z == 1)
    {
        cout << 0 << ' ' << 1 << '\n';
        return;
    }
    
    for (int i = 1; i <= 10; i++)
    {
        int x, y;
        int f = ex(z, -aa, i, x, y);
        if (f)
        {
            // cout << i << ' ' << x << ' ' << y << ' ';
            int ansy = bb * y;
            // cout << ansx << ' ' << ansy / z << '\n';
            if (zhi(ansy / z) == 1)
            {
                cout << i << ' ' << y * bb << '\n';
                return;
            }
        }
    } 
}
main() {
    ios::sync_with_stdio(0); cin.tie(0), cout.tie(0);
    int t = 1; 
    cin >> t;
    while(t--) solve();
    return 0;
}

/*
 4
1 2
2 3
3 7
19 79
*/

詳細信息

Test #1:

score: 100
Accepted
time: 0ms
memory: 3632kb

input:

4
1 2
2 3
3 7
19 79

output:

0 1
1 3
1 14
3 316

result:

ok 4 case(s)

Test #2:

score: -100
Wrong Answer
time: 6ms
memory: 3668kb

input:

10000
11 12
28 53
17 60
2 35
17 181
80 123
68 141
79 163
71 99
13 64
33 61
15 32
16 61
11 86
33 74
128 143
40 53
7 23
30 31
5 6
86 181
73 91
13 23
71 81
1 2
7 38
117 160
33 83
129 151
88 153
25 58
16 19
19 141
95 124
43 96
71 139
11 59
106 109
93 152
34 43
17 99
1 57
20 159
16 25
5 73
159 170
172 17...

output:

1 12
5 1696
1 60
3 70
5 282
5 326
5 3168
0 1
0 1
3 740
7 1430
7 1325
3 368
1 31
1 6
9 362
4 115
7 2025
0 1
1 304
0 1
1 415
3 464
3 19
1 192
1 944
3 109
1 1520
2 215
1 6336
7 2850
0 1
3 1360
1 22912
2 325
1 1360
7 172
1 130
9 3425
0 1
7 568
4 990
9 1490
3 770
5 26
1 15
1 270
1 920
5 264
9 752
1 176
2...

result:

wrong answer Jury found better answer than participant's 1 < 5 (Testcase 2)