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QOJ
ID | Problem | Submitter | Result | Time | Memory | Language | File size | Submit time | Judge time |
---|---|---|---|---|---|---|---|---|---|
#767485 | #9622. 有限小数 | MaxDYF# | WA | 58ms | 9752kb | C++14 | 1.8kb | 2024-11-20 21:05:34 | 2024-11-20 21:05:35 |
Judging History
answer
#include<stdio.h>
#include<string.h>
typedef __int128_t lll;
typedef __uint128_t ulll;
typedef long long ll;
typedef unsigned long long ull;
typedef unsigned int word;
typedef unsigned char byte;
word case_,n;
word bef[1<<20],nxt[1<<20];
struct READ{
char c;
inline READ(){
bef[1]=1,nxt[1]=0;
for(word i=2;i<(1<<20);++i) if(bef[i]==0){
for(word j=1,before=0;j;j=nxt[j])
if(1ull*j*i<(1<<20)){
nxt[j*i]=nxt[j],nxt[j]=j*i;
bef[j*i]=i,before=j;
}else nxt[before]=nxt[j];
}
c=getchar();}
template<typename type>
inline READ& operator>>(type &num){
while('0'>c||c>'9') c=getchar();
for(num=0;'0'<=c&&c<='9';c=getchar())
num=num*10+(c-'0');
return *this;
}
}cin;
word a,b,p;
struct GCD{
ll gcd,x,y;
inline GCD(){}
inline GCD(const GCD &)=default;
inline GCD(const ll g,const ll X,const ll Y):
gcd(g),x(X),y(Y){}
};
inline GCD exgcd(const ll a,const ll b){
if(b==0) return GCD(a,1,0);
const GCD gcd=exgcd(b,a%b);
return GCD(gcd.gcd,gcd.y,gcd.x-(a/b)*gcd.y);
}
ull minc,mind;
inline void getans(const word d0,const ll a0,const word d){
GCD g=exgcd(d0,p);
if(g.y<0) g.y=(-g.y)%d0;
else g.y=d0-(g.y%d0);
ull c=1ull*(a0%d0)*g.y%d0;
if(minc>c) minc=c,mind=d;
}
inline void dfs2(const word d0,ll a0,word d){
while(getans(d0,a0,d),2ull*d<=1e9) a0<<=1,d<<=1;
}
inline void dfs5(const word d0,ll a0,word d){
while(dfs2(d0,a0,d),5ull*d<=1e9) a0*=5,d*=5;
}
inline void dfs(word step,word now=1){
if(step==1){
if(a%(b/now)==0) dfs5(now,a/(b/now),now);
return;
}
word p=bef[step],cnt=0;
while(step%p==0) ++cnt,step/=p;
for(word i=0;i<=cnt;++i,now*=p)
dfs(step,now);
}
int main(){
for(cin>>case_;case_;--case_){
cin>>a>>b,p=1;
while(b%2==0) b/=2,p*=2;
while(b%5==0) b/=5,p*=5;
minc=b-a,mind=b,dfs(b);
printf("%llu %llu\n",minc,mind);
}
return 0;
}
Details
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Test #1:
score: 100
Accepted
time: 50ms
memory: 9692kb
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: 58ms
memory: 9752kb
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 54272 1 6 1 7 1 231680000 23 3936 1 36096000 5 326 1 63360 0 1 1 31232 0 1 1 4880 1 44032 1 757760 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 3 3 347500 1 944 1 43600 1 76 1 1761280 1 6336 1 2...
result:
wrong answer The result is not terminating.(Testcase 245)