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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
#743356#9622. 有限小数YehhhhWA 18ms3556kbC++171.3kb2024-11-13 19:00:142024-11-13 19:00:14

Judging History

你现在查看的是最新测评结果

  • [2024-11-13 19:00:14]
  • 评测
  • 测评结果:WA
  • 用时:18ms
  • 内存:3556kb
  • [2024-11-13 19:00:14]
  • 提交

answer

#include <bits/stdc++.h>

using namespace std;

vector<int> d;

void Init() {
    int pre = 1;
    for (int i = 0; i < 20; i++) {
        int pree = pre;
        for (int j = 0; j < 9; j++) {
            if (pree > 1e6) {
                break;
            }
            d.push_back(pree);
            pree *= 5;
        }
        pre *= 2;
    }
    sort(d.begin(), d.end());
}

int f(int x) {
    while (x % 2 == 0) {
        x /= 2;
    }
    while (x % 5 == 0) {
        x /= 5;
    }
    return x;
}

void solve() {
    int a, b;
    cin >> a >> b;
    int fb = f(b);
    if (fb == 1) {
        cout << "0 1\n";
        return;
    }
    int ans = b - a;
    int ansd = b;
    for (auto x : d) {
        if (1LL * x * fb > 1LL * 1e9) {
            break;
        }
        int k = floor(1.0 * 1LL * a * x / 1.0 / fb) + 1;
        while ((k * fb - a * x) % (b / fb) != 0) {
            k++;
        }
        int c = (k * fb - a * x) / (b / fb);
        if (c < ans && c > 0) {
            ans = c;
            ansd = x * fb;
        }
    }
    cout << ans << " " << ansd << "\n";
}

int main() {
    ios::sync_with_stdio(false);
    cin.tie(0);
    Init();
    int t;
    cin >> t;
    while (t--) {
        solve();
    }
    return 0;
}

详细

Test #1:

score: 100
Accepted
time: 1ms
memory: 3512kb

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: 18ms
memory: 3556kb

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 54272
1 6
1 7
7 90500
23 3936
1 36096000
5 326
1 63360
0 1
1 31232
0 1
1 4880
1 10750
1 18500
1 11714560
1 331250
1 2944
1 31
1 6
7 113125
1 455000
1 58880
1 51840
0 1
1 304
0 1
1 415
1 19328000
5 156672
1 4640
1 608
1 72192
3 775
1 3
3 347500
1 944
1 43600
1 76
1 430000
1 6336
1 29184
11 795...

result:

wrong answer Jury found better answer than participant's 1 < 7 (Testcase 5)