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QOJ
ID | Problem | Submitter | Result | Time | Memory | Language | File size | Submit time | Judge time |
---|---|---|---|---|---|---|---|---|---|
#745821 | #9622. 有限小数 | Chen1098 | TL | 0ms | 0kb | C++14 | 2.5kb | 2024-11-14 11:48:09 | 2024-11-14 11:48:09 |
Judging History
answer
#include<bits/stdc++.h>
#define debug(...) fprintf(stderr,##__VA_ARGS__)
#define int long long
#define endl '\n'
#define pb push_back
#define pii pair<int,int>
using namespace std;
bool Men;
const int mod=998244353;
const int N=200005;
inline void write(int x){if(x<0) putchar('-'),x=-x;if(x>9) write(x/10);putchar(x%10+'0');return;}
inline int read() {int x=0,f=1; char ch=getchar();while(ch<'0'||ch>'9') { if(ch=='-') f=-1; ch=getchar();}while(ch>='0' && ch<='9') x=x*10+ch-'0',ch=getchar();return x*f;}
void add(int &x,int y){x=(x+y)%mod;}
int ksc(int m,int n,int p){int ans=0;while(n){if(n%2==1){n=n-1;ans=(ans+m)%p;}n=n/2;m=(m+m)%p;}return ans;}
int ksm(int base,int power,int p){int result=1;while(power>0){if(power&1){result=result*base%p;}power>>=1;base=(base*base)%p;}return result;}
int mod_inverse(int a){return ksm(a,mod-2,mod);}
int inv(int numerator,int denominator){int inverse_denominator = mod_inverse(denominator);int result=(1LL*numerator*inverse_denominator)%mod;return result;}
int a,b;
int FF;
int get(int i){
if(!FF){
i*=2,FF=1;
return i;
}
else{
i*=5,FF=0;
return i;
}
return i;
}
int g[1000000];
bool Mbe;
signed main(){
freopen("in.txt","r",stdin);
// freopen("out.txt","w",stdout);
int T=read();
int cnt=0;
for(int i=0;i<=100000;i++){
for(int j=0;j<=100000;j++){
if(pow(2,i)*pow(5,j)>1e9) break;
g[++cnt]=pow(2,i)*pow(5,j);
}
}
sort(g+1,g+1+cnt);
while(T--){
a=read(),b=read();
int tot=1,nowb=b,nowa=a;
while(nowb%2==0){
if(nowb%2!=0) break;
nowb/=2;
tot*=2;
}
while(nowb%5==0){
if(nowb%5!=0) break;
nowb/=5;
tot*=5;
}
int must=b/tot;
if(tot!=1&&(a%must==0)){
cout<<0<<' '<<1<<endl;
continue;
}
// cout<<"SDF";
int c=1e9,d=1e9;
FF=1;
for(int q=1;q<=cnt;q++){
int i=g[q];
if(b*i>=1e9) continue;
int nowb=b*i,tot=1;
while(nowb%2==0){
if(nowb%2!=0) break;
nowb/=2;
tot*=2;
}
while(nowb%5==0){
if(nowb%5!=0) break;
nowb/=5;
tot*=5;
}
if(tot==1) continue;
// cout<<"TOT "<<tot<<endl;
//分子需要形成tot或者其倍数
int nowa=a*i;
nowb=b*i;
int must=nowb/tot;
for(int j=(int)((nowa+must-1)/must);j<=((c+nowa)/must);j++){
int nowmust=must*j;
if(nowmust<=nowa) continue;
// cout<<nowmust-nowa<<endl;
if(nowmust-nowa<c){
c=nowmust-nowa;
d=nowb;
}
else continue;
}
if(c==1) break;
// cout<<c<<endl;
}
cout<<c<<' '<<d<<endl;
}
/*
2 5
2
28 53
2 35
1
1
*/
return 0;
}
Details
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Test #1:
score: 0
Time Limit Exceeded
input:
4 1 2 2 3 3 7 19 79