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
#760865#9622. 有限小数Afterlife#WA 57ms3668kbC++20740b2024-11-18 19:51:422024-11-18 19:51:48

Judging History

你现在查看的是最新测评结果

  • [2024-11-18 19:51:48]
  • 评测
  • 测评结果:WA
  • 用时:57ms
  • 内存:3668kb
  • [2024-11-18 19:51:42]
  • 提交

answer

#include<bits/stdc++.h>
using namespace std;
typedef long long ll;
const ll lim=1e9;
ll a,b;
void Solve(){
    cin>>a>>b;
    a%=b;
    ll pw5=1;
    pair<ll,ll> ans=make_pair(lim,lim);
    for(int y=0;;++y,pw5*=5){
        ll g5=__gcd(b,pw5);
        if(b/g5*(pw5/g5)>lim)break;
        for(int x=0;;++x){
            ll g=__gcd(b,pw5<<x);
            ll t=b/g*((pw5<<x)/g);
            if(t>lim)break;
            ans=min(ans,make_pair(((b/g)-(a*((pw5<<x)/g))%(b/g))%(b/g),t));
        }
    }
   // assert(__gcd(ans.first,ans.second)==1);
    cout<<ans.first<<' '<<ans.second<<'\n';
}
int main(){
    ios::sync_with_stdio(false);
    cin.tie(0);
    int T;
    cin>>T;
    while(T--)Solve();
    return 0;
}

详细

Test #1:

score: 100
Accepted
time: 1ms
memory: 3584kb

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: 57ms
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 3
1 54272
1 3
1 70
1 231680000
23 3936
1 36096000
5 326
1 63360
0 1
1 31232
0 1
1 4880
1 5375
1 9250
1 11714560
1 331250
1 2944
1 31
1 3
1 289600000
1 455000
1 58880
1 51840
0 1
1 152
0 1
1 415
1 19328000
1 765000000
1 2320
1 608
1 72192
3 6200
1 6
3 347500
1 944
1 43600
1 190
1 430000
1 6336
1 29...

result:

wrong answer The result is not terminating.(Testcase 3)