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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 |
---|---|---|---|---|---|---|---|---|---|
#743065 | #9622. 有限小数 | chatoyane | WA | 53ms | 3624kb | C++20 | 1.3kb | 2024-11-13 18:08:26 | 2024-11-13 18:08:27 |
Judging History
answer
#include <bits/stdc++.h>
using namespace std;
using LL = long long;
using db = double;
#define endl '\n'
const LL inf = 1e18;
void solve()
{
LL a, b;
cin >> a >> b;
auto check = [&](int x) -> bool
{
while (x % 2 == 0)
x /= 2;
while (x % 5 == 0)
x /= 5;
return (x == 1);
};
if (check(b))
{
cout << "0 1" << endl;
return;
}
LL d = b;
while (d % 2 == 0)
d /= 2;
while (d % 5 == 0)
d /= 5;
LL ans1 = 1e18, ans2 = 1e18;
for (LL pw2 = 1; pw2 * b <= 1e9; pw2 *= 2)
{
for (LL pw5 = 1; pw5 * pw2 * b <= 1e9; pw5 *= 5)
{
LL k = pw2 * pw5;
LL c = (d - (a * k) % d) % d;
LL g = gcd(c, b * k);
LL c1 = c / g, d1 = b * k / g;
if (c1 < ans1)
{
ans1 = c1, ans2 = d1;
}
// ans = min(ans, c);
}
}
// if (ans1 == 193)
// {
// cerr << "a = " << a << " b = " << b << endl;
// }
if (ans1 == 193)
cout << a << endl;
cout << ans1 << " " << ans2 << endl;
}
int main()
{
ios::sync_with_stdio(false);
cin.tie(nullptr);
int T;
cin >> T;
while (T--)
solve();
return 0;
}
詳細信息
Test #1:
score: 100
Accepted
time: 0ms
memory: 3572kb
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: 53ms
memory: 3624kb
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)