QOJ.ac

QOJ

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
#742147#9622. 有限小数ucup-team4074#WA 46ms3696kbC++171.4kb2024-11-13 15:59:052024-11-13 15:59:06

Judging History

你现在查看的是最新测评结果

  • [2024-11-13 15:59:06]
  • 评测
  • 测评结果:WA
  • 用时:46ms
  • 内存:3696kb
  • [2024-11-13 15:59:05]
  • 提交

answer

#include<bits/stdc++.h>

#define int long long
#define fast ios::sync_with_stdio(0), cin.tie(0), cout.tie(0);
using namespace std;

void solve();

const int N = 1e5 + 10, P = 998244353;
int pw_2[N], pw_5[N];

signed main() {
    fast
    pw_2[0] = pw_5[0] = 1;
    for (int i = 1; i <= 30; i++)pw_2[i] = pw_2[i - 1] * 2, pw_5[i] = pw_5[i - 1] * 5;
    int t = 1;
    cin >> t;
    while (t--) solve();
}

void solve() {
    int a, b, ansc(1e9), ansd(0);
    cin >> a >> b;
    ansc = b - a;
    ansd = b;
    int nb(b);
    while (nb % 2 == 0)nb /= 2;
    while (nb % 5 == 0)nb /= 5;
    if (nb == 1) {
        cout << 0 << " " << 1 << '\n';
        return;
    }
    for (int i = 0; i <= 30; i++) {
        for (int j = 0; j <= 12; j++) {
            if (pw_2[i] * pw_5[j] <= 1000000000) {
                if (pw_2[i] * pw_5[j] * b <= 1000000000) {
                    int c(nb - (pw_2[i] * pw_5[j] * a) % nb);
                    if (ansc > c / (gcd(c, pw_2[i] * pw_5[j] * b))) {
                        ansc = c / (gcd(c, pw_2[i] * pw_5[j] * b));
                        ansd = pw_2[i] * pw_5[j] * b / (gcd(c, pw_2[i] * pw_5[j] * b));
                    }
                }
            } else {
                break;
            }
        }
    }
    cout << ansc << " " << ansd << '\n';
    return;
}
/*
4
1 2
2 3
3 7
19 79
 */

详细

Test #1:

score: 100
Accepted
time: 0ms
memory: 3580kb

input:

4
1 2
2 3
3 7
19 79

output:

0 1
1 3
1 4375
3 316

result:

ok 4 case(s)

Test #2:

score: -100
Wrong Answer
time: 46ms
memory: 3696kb

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
1 828125000
1 60
1 7
1 231680000
23 960937500
1 36096000
5 326
1 63360
0 1
1 61000
0 1
1 4880
1 10750
1 18500
1 11714560
1 331250
1 898437500
1 31
1 6
1 289600000
1 455000
1 115000000
1 1265625
0 1
1 1484375
0 1
1 415
1 235937500
1 765000000
1 181250
1 2968750
1 4406250
3 775
1 48
3 347500
1 94...

result:

wrong answer Jury found better answer than participant's 1 < 2 (Testcase 8812)