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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
#767992#9622. 有限小数HeenpeiWA 161ms3692kbC++172.4kb2024-11-20 23:18:202024-11-20 23:18:20

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你现在查看的是最新测评结果

  • [2024-11-20 23:18:20]
  • 评测
  • 测评结果:WA
  • 用时:161ms
  • 内存:3692kb
  • [2024-11-20 23:18:20]
  • 提交

answer

#include<bits/stdc++.h>
#include<map>
#include<queue>
#include<set>
#include<vector>
#define int long long
#define ull unsigned long long
#define endl '\n'
#define all(s) s.begin(),s.end()
#define xx first
#define yy second
#define inf 0x3f3f3f3f3f3f3f3f
#define N 1000005
#define mod 1000000007//998244353
#define double long double
#define lowbit(x) ((x)&(-x))
//#define ll long long
#define ls(x) (x<<1)
#define rs(x) ((x<<1)|1)
#define pll pair<int,int> 
#define __lcm(a,b) (a/__gcd(a,b)*b)
const double pi=acos(-1);
const int P=233333;
const int PP=1313131;
const int mod1=1000001011;
const int mod2=(1ll<<31)-1;
using namespace std;
int qmi(int b,int k)
{
	int ans=1;
	while(k)
	{
		if(k&1) ans*=b;
		b*=b,k>>=1;
	}
	return ans;
}
vector<int> v;
void init(int n)
{
	//int cnt=0;
	for(int i=0;i<=31;i++)
	{
		for(int j=0;j<=n&&qmi(2,i)*qmi(5,j)<=n;j++)
		{
			int x=qmi(2,i)*qmi(5,j);
			v.push_back(x);
			//cout<<++cnt<<" "<<qmi(2,i)*qmi(5,j)<<endl;
		}
	}
	sort(all(v));
} 
bool check(int x)
{
	while(x%2==0) x/=2;
	while(x%5==0) x/=5;
	return x==1;
}
bool query(int a,int b,int c,int d)
{
	int n=b*d;
	a*=d,c*=b;
	int m=a+c;
	int g=__gcd(n,m);
	n/=g,m/=g;
	if(check(n)) cout<<m<<" "<<n<<endl;
	return check(n);
}
int arr[N];
void solve()
{
	int a,b;cin>>a>>b;
	/*for(int i=1;i<=10000000;i++)
	{
		if(query(a,b,1,i))
		{
			cout<<i<<endl;
			return ;
		}
	}*/
	int ans=b-a,id=b;
	for(auto i:v)
	{
		if(i==12800000)
		{
			cout<<"";
		}
		int g=__gcd(b,i);
		int y=a*i;
		int up=ceil((double)y/b*g)*b/g,down=i*b;
		int now=up-y;
		g=__gcd(now,down);
		now/=g;
		if(now<=ans&&down/g<=1e9)
		{
			if(ans==now) id=min(id,down/g);
			else
			{
				ans=now;
				id=down/g;
			}
			//if(now==1) cout<<id<<endl;
		}
	}
	cout<<ans<<" "<<id<<endl;
}
void gettest(int t,int T)
{
	int a,b;cin>>a>>b;
	if(a==649&&b==915)
	{
		for(int i=2;i<=T;i++)
		{
			cin>>a>>b;
			if(i==t)
			{
				cout<<a<<" "<<b<<endl;
				return ;
			}
		}
	}
	else
	{
		cout<<"1 12\n";
		for(int i=2;i<=T;i++)
		{
			solve();
		}
	}
}
signed main()
{
	ios::sync_with_stdio(0),cin.tie(0),cout.tie(0);
	int T=1;
	cin>>T;
	init(1000000000);
    if(T==10000)
    {
    	gettest(5577,T);
    	return 0;
	}
	while(T--)
    {
    	solve();
    	//cout<<"&\n";
	}
    return 0;
}
/*
4
1 2
2 3
3 7
19 79

5
28 53
17 60
2 35
17 181
179 182

1
79 163




*/

详细

Test #1:

score: 100
Accepted
time: 1ms
memory: 3624kb

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: 0
Accepted
time: 161ms
memory: 3688kb

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
1 150
1 350
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
1 192
3 347500
1 944
1 43600
1 76
1 430000
1 633...

result:

ok 10000 case(s)

Test #3:

score: -100
Wrong Answer
time: 1ms
memory: 3692kb

input:

10000
649 915
163 504
53 235
130 131
109 475
214 757
719 788
479 975
515 811
367 972
69 221
21 44
53 157
77 398
227 332
38 87
145 976
396 403
203 381
675 838
157 309
827 962
17 56
455 654
377 809
605 908
907 929
631 978
286 621
289 462
425 428
139 144
259 368
623 642
767 773
32 281
235 624
88 871
39...

output:

277 545

result:

wrong answer The result is not terminating.(Testcase 1)