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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
#767262#9622. 有限小数xjt05WA 214ms3820kbC++23988b2024-11-20 20:23:072024-11-20 20:23:09

Judging History

你现在查看的是最新测评结果

  • [2024-11-20 20:23:09]
  • 评测
  • 测评结果:WA
  • 用时:214ms
  • 内存:3820kb
  • [2024-11-20 20:23:07]
  • 提交

answer

#include<bits/stdc++.h>
using namespace std;
typedef long long ll;
//lg2=30
//log5=19
ll gcd(ll a,ll b){
	if(b==0)return a;
	else return gcd(b,a%b);
}
ll ksm(ll x,ll y)
{
	ll ans=1;
	while(y)
	{
		if(y&1)
		ans*=x;
		x*=x;
		y>>=1;
	}
	return ans;
}
void solve(){
	ll c=1e18;
	ll a,b;
	ll fenmu=0;
	scanf("%lld %lld",&a,&b);
	ll u,f;
	u=f=LONG_MAX;
	for(ll i=0;i<=30;i++){
		ll five=1;
		for(ll j=0;j<=13;j++,five*=5){
			__int128 ko;
			ko=a*ksm(2,i)*ksm(5,j);
			if(ko>1e18)
			break;
			ll tem=a*(1<<i)*five;
		    ll m;
			if(tem<=b)
			m=(b/tem);
			else 
			m=(tem/b)+(tem%b>0);
				c = m*b-tem;
				fenmu=b*(1<<i)*five;
				ll k=gcd(c,fenmu);
				if(fenmu/k>(ll)1e9)
				continue;
				if(u>c/k)
				u=c/k,f=fenmu/k;
				else if(u==c/k)
				f=min(f,fenmu/k);
				else 
				continue;
		}
	}
	cout<<(ll)u<<" "<<(ll)f<<"\n";
}

int main(){
	ll t;
	cin>>t;
	while(t--){
		solve();
	}
	
	
	return 0;
}
/*

10
2 35
*/

詳細信息

Test #1:

score: 100
Accepted
time: 0ms
memory: 3636kb

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: 214ms
memory: 3820kb

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 54272
1 60
1 56
1 231680000
23 3936
1 36096000
5 326
1 63360
0 1
1 31232
0 1
1 4880
1 10750
1 18500
1 11714560
1 331250
1 2944
1 31
1 6
1 289600000
1 455000
1 58880
1 51840
0 1
1 304
0 1
1 415
1 19328000
1 765000000
1 4640
1 608
1 72192
3 775
1 48
3 347500
1 944
1 43600
1 76
1 430000
1 6336
1...

result:

wrong answer Integer -96812299607605248 violates the range [1, 10^9]