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IDProblemSubmitterResultTimeMemoryLanguageFile sizeSubmit timeJudge time
#352622#5103. Fair DivisionPorNPtree#WA 2258ms4080kbC++141.1kb2024-03-13 14:21:382024-03-13 14:21:39

Judging History

你现在查看的是最新测评结果

  • [2024-03-13 14:21:39]
  • 评测
  • 测评结果:WA
  • 用时:2258ms
  • 内存:4080kb
  • [2024-03-13 14:21:38]
  • 提交

answer

#include <bits/stdc++.h>

using namespace std;

__float128 mypow(__float128 t, int n)
{
    __float128 z = 1;
    for (int i = 1; i <= n; ++i) {
        z *= t;
    }
    return z;
}

__float128 floor(__float128 x)
{
    return (long long)x;
}

__float128 fabs(__float128 x)
{
    return x > 0 ? x : -x;
}

signed main()
{
    int n;
    long long m;
    scanf("%d%lld", &n, &m);
    if (n < 100) {
        for (int q = 2; q <= 4000; ++q) {
            for (int p = q - 1; p; --p) {
                if (__gcd(p, q) != 1) {
                    continue;
                }
                __float128 t = (__float128)p / q, now = m * (1 - t) / (1 - mypow(t, n));
                int flg = (fabs(now - floor(now)) < 1e-6);
                for (int z = 1; z < n && flg; ++z) {
                    now *= t;
                    flg &= (fabs(now - floor(now)) < 1e-6);
                }
                if (flg) {
                    printf("%d %d\n", q - p, q);
                    return 0;
                }
            }
        }
    }
    puts("impossible");
    return 0;
}

Details

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Test #1:

score: 100
Accepted
time: 1ms
memory: 4076kb

input:

13 382475111752106101

output:

17 28

result:

ok single line: '17 28'

Test #2:

score: 0
Accepted
time: 0ms
memory: 4080kb

input:

59 576460752303423487

output:

1 2

result:

ok single line: '1 2'

Test #3:

score: 0
Accepted
time: 0ms
memory: 3880kb

input:

15 227368755046033249

output:

13 14

result:

ok single line: '13 14'

Test #4:

score: 0
Accepted
time: 0ms
memory: 4048kb

input:

27 72027091647987988

output:

1 4

result:

ok single line: '1 4'

Test #5:

score: 0
Accepted
time: 0ms
memory: 3792kb

input:

12 817283057828223168

output:

10 17

result:

ok single line: '10 17'

Test #6:

score: 0
Accepted
time: 0ms
memory: 3792kb

input:

40 279103330129289325

output:

1 2

result:

ok single line: '1 2'

Test #7:

score: 0
Accepted
time: 0ms
memory: 3792kb

input:

9 200754090585004509

output:

27 31

result:

ok single line: '27 31'

Test #8:

score: -100
Wrong Answer
time: 2258ms
memory: 3728kb

input:

13 145272043713167318

output:

impossible

result:

wrong answer 1st lines differ - expected: '11 19', found: 'impossible'