。。。i<=5*10^6
by 空江白叶 @ 2019-06-15 09:02:41
int*int会炸的呀
by minstdfx @ 2019-06-15 09:03:05
@[空江白叶](/space/show?uid=113804) 爆int然后就一直循环了呀
by yu__xuan @ 2019-06-15 09:03:16
哦，没想到这一点，谢谢dalao
by 空江白叶 @ 2019-06-15 09:04:29
炸了
by QAQ_QAQ @ 2019-06-15 09:34:44
我都用了筛法了，为什么还有两个点TLE?
```cpp
#include<iostream>
#include<math.h>
using namespace std;
bool judge(long long a){
if(a==2||a==3){
return 1;
}
if(a<2||(a%6!=1)&&(a%6!=5)){
return 0;
}
for(long long i=5;i<=sqrt(a);i+=6){
if(a%i==0||a%(i+2)==0){
return 0;
}
}
return 1;
}
int main(){
long long a;
cin>>a;
if(judge(a)||a==1){
cout<<1<<endl<<0;
return 0;
}
long long s[44];//2^44>10^13
int cnt=0;
while(a%2==0){
s[cnt]=2;
cnt++;
a/=2;
}
while(a%3==0){
s[cnt]=3;
cnt++;
a/=3;
}
for(long long i=5;i<=a;i+=6){
while(a%i==0){
s[cnt]=i;
cnt++;
a/=i;
}
if(a==1){
break;
}
while(a%(i+2)==0){
s[cnt]=i+2;
cnt++;
a/=i+2;
}
if(a==1){
break;
}
}
if(cnt==2){
cout<<2;
return 0;
}
cout<<1<<endl<<s[0]*s[1];
}
```
by Ricken @ 2019-08-28 14:28:59
为啥爆int会一直循环呀
by jasonliujiahua @ 2023-01-16 16:31:43