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IDProblemSubmitterResultTimeMemoryLanguageFile sizeSubmit timeJudge time
#736888#9622. 有限小数ucup-team4352#WA 20ms3560kbC++231.2kb2024-11-12 13:49:232024-11-12 13:49:23

Judging History

你现在查看的是最新测评结果

  • [2024-11-12 13:49:23]
  • 评测
  • 测评结果:WA
  • 用时:20ms
  • 内存:3560kb
  • [2024-11-12 13:49:23]
  • 提交

answer

#include <bits/stdc++.h>
#define ll long long
#define pii pair<int,int>
using namespace std;

ll ansc=1e18,ansd=0;
ll a,b;
ll x,y;
ll exgcd(ll a,ll b,ll&x,ll &y){
	if(!b){
		x=1;y=0;
		return a;
	}
	ll g=exgcd(b,a%b,x,y);
	ll t=x;
	x=y;
	y=t-(a/b)*y;
	return g;
}
void solv(ll z){
	ll q,c;
	ll az=a*z;
	ll g=exgcd(x,y,q,c);
	// cout<<z<<" "<<y<<" "<<q<<" "<<c<<"\n";
	if(c>0){
		ll tmp=c/(x/g)+1;
		c=c-tmp*(x/g);
		// q=q+tmp*(y/g);
	}
	c=-c;
	c=c*((__int128)a*z/g);
	if(1){
		ll tmp=c/(x/g);
		c=c-tmp*(x/g);
		// q=q+tmp*(y/g);
	}
	// cout<<a*z<<"\n";
	if(c<ansc){
		// cout<<c<<" "<<x*z<<"\n";
		ansc=c;
		ansd=x*z;
	}
}
//q*x-c*y=a*z
void solve(){
   	ansc=1e18,ansd=0;
    cin>>a>>b;
    ll now2=1,tmp=b;
    while(tmp%2==0)tmp>>=1;
    while(tmp%5==0)tmp/=5;
	x=tmp;y=b/tmp;
    if(tmp==1){
        cout<<"0 1\n";
        return;
    }
    while(1){
        ll now5=1;
        while(1){
			solv(now2*now5);
            now5*=5;
            if(now5*now2*b>1e9)break;
        }
        now2*=2;
        if(now2*b>1e9)break;
    }
    cout<<ansc<<" "<<ansd<<"\n";
}
int main(){
    ios::sync_with_stdio(0),cin.tie(0);
    int t=1;
    cin>>t;
    while(t--)solve();
    return 0;
}

Details

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Test #1:

score: 100
Accepted
time: 0ms
memory: 3440kb

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: 20ms
memory: 3560kb

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 828125000
1 15
1 7
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 15
1 289600000
1 455000
1 115000000
1 1265625
0 1
1 1484375
0 1
1 415
1 235937500
1 765000000
1 181250
1 2968750
1 4406250
3 775
1 3
3 347500
1 944...

result:

wrong answer Jury found better answer than participant's 1 < 2 (Testcase 597)