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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
#744563#9622. 有限小数dmrmra#WA 14ms3652kbC++111.1kb2024-11-13 22:26:262024-11-13 22:26:27

Judging History

你现在查看的是最新测评结果

  • [2024-11-13 22:26:27]
  • 评测
  • 测评结果:WA
  • 用时:14ms
  • 内存:3652kb
  • [2024-11-13 22:26:26]
  • 提交

answer

//
// Created by 16373 on 2024/11/13.
//
#include <bits/stdc++.h>
#define int long long
using namespace std;
const int mod=998244353,inf=1e9;
int qpow(int a,int x){
    int res=1;
    while(x){
        if(x&1) res=res*a;
        x>>=1;
        a*=a;
    }
    return res;
}
void solve(){
    int a,b;
    cin>>a>>b;
    int prime=b;
    int cnt2=0,cnt5=0;
    while(prime%2==0){
        cnt2++;
        prime/=2;
    }
    while(prime%5==0){
        cnt5++;
        prime/=5;
    }
    int now2=qpow(2,cnt2),res2,res5,mn=inf;
    for(int i=cnt2;now2<=inf;i++,now2*=2){
        int now=now2*qpow(5,cnt5);
        for(int j=cnt5;now<=inf;j++,now*=5){
            int md=a*now%prime;
            int ans=(prime-md)%prime;
            if(ans<mn){
                mn=ans;
                res2=i; res5=j;
            }
        }
    }
    cout<<mn<<' '<<prime*qpow(2,res2+cnt2)*qpow(5,res5+cnt5)<<'\n';
}
signed main(){
    ios::sync_with_stdio(0); cin.tie(0);
    int t;
    cin>>t;
    while(t--){
        solve();
    }
    return 0;
}
//2
//630
//3029 2336 377 41 10 61
//3000
//20000 10000 0 0 0 0

详细

Test #1:

score: 100
Accepted
time: 1ms
memory: 3588kb

input:

4
1 2
2 3
3 7
19 79

output:

0 4
1 3
1 4375
3 316

result:

ok 4 case(s)

Test #2:

score: -100
Wrong Answer
time: 14ms
memory: 3652kb

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 48
1 828125000
1 6000
1 109375
1 231680000
23 60058593750
1 2203125000
3 2086400000
1 63360
0 4096
1 61000
0 1024
1 59570312500
1 41992187500
1 18500
1 1117187500
1 331250
1 11230468750
1 31
1 60
1 289600000
1 455000
1 17968750000
1 1265625
0 4
1 29687500
0 25600
1 415
1 235937500
1 765000000
1 22...

result:

wrong answer Integer 60058593750 violates the range [1, 10^9]