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QOJ
ID | Problem | Submitter | Result | Time | Memory | Language | File size | Submit time | Judge time |
---|---|---|---|---|---|---|---|---|---|
#760746 | #9622. 有限小数 | Afterlife# | WA | 61ms | 3648kb | C++20 | 735b | 2024-11-18 19:01:22 | 2024-11-18 19:01:22 |
Judging History
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>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;
}
Details
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Test #1:
score: 100
Accepted
time: 0ms
memory: 3596kb
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: 61ms
memory: 3648kb
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)