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
#742899#9622. 有限小数yzhx#WA 3ms3608kbC++111.1kb2024-11-13 17:36:102024-11-13 17:36:11

Judging History

你现在查看的是最新测评结果

  • [2024-11-13 17:36:11]
  • 评测
  • 测评结果:WA
  • 用时:3ms
  • 内存:3608kb
  • [2024-11-13 17:36:10]
  • 提交

answer

#include <iostream>
#include <vector>
using namespace std;

using ll = long long;
vector<ll> k;
void slove(){
    ll up = 1e9;
    ll a, b;
    cin >> a >> b;

    ll pri = b;
    while(pri % 2 == 0) pri /= 2;
    while(pri % 5 == 0) pri /= 5;
    
    if (pri == 1) {
        cout << "0 1\n";
        return ;
    }
    ll mi = pri;
    ll low = 0;
    for (int i = 0 ; i < k.size() ; i++){
        // if (k[i] == 4){
        //     cout << pri - (a * k[i] % pri);
        // }
        if (b * k[i] >= up) continue;

        if (mi > pri - (a * k[i] % pri)){
            mi = pri - (a * k[i] % pri);
            low = b * k[i];
        }
    }

    cout << mi << " " << low << endl;
}

int main(){
   ll up = 1e9;

   for (ll i = 1 ; i <= (ll)1e9 ; i *= 2LL){
       ll tmp = i;
       while(tmp <= up){
          k.push_back(tmp);
          tmp *= 5LL;
       }
   }

//    cout << k.size() << endl;
   int cnt = 1;
   cin >> cnt;

   while(cnt--) {
    slove();
   }

   return 0;
}



/*
4
1 2
2 3
3 7
19 79
*/

詳細信息

Test #1:

score: 100
Accepted
time: 0ms
memory: 3544kb

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: 3ms
memory: 3608kb

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 109375
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 29687500
0 1
1 415
1 235937500
1 765000000
1 181250
1 2968750
1 4406250
3 24800
1 480
3 34...

result:

wrong answer Jury found better answer than participant's 1 < 2 (Testcase 321)