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73 lines (67 loc) · 1.11 KB
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/*
Krishna Mohan
Project Euler - Problem 41
Date: 3/24/2015
*/
#include <bits/stdc++.h>
using namespace std;
#define fo(i, n) for(int (i)=0;(i)<(n); (i)++)
#define MAX 100000001
bitset<MAX> isPrime;
void init()
{
isPrime.set();
isPrime[0]=isPrime[1]=0;
for(int i=4;i<MAX;i+=2)
isPrime[i]=0;
for(int i=3;i<MAX;i+=2)
{
if(isPrime[i])
{
for(int j=2*i;j<MAX;j+=i)
{
isPrime[j]=0;
}
}
}
}
inline bool isPanDig(int n)
{
int m[10]={0};
int num=n, len=0;
while(num)
{
m[num%10]++;
num/=10;
len++;
}
int f=0;
for(int i=1;i<=len;i++)
{
if(m[i]!=1)
{
f=1;
break;
}
}
if(!f)
return true;
return false;
}
int main()
{
ios_base::sync_with_stdio(0);
init();
int max=0;
for(int i=1;i<MAX;i++)
{
if(isPrime[i] && isPanDig(i))
{
cout<<i<<endl;
if(i>max)
max=i;
}
}
cout<<"Ans: "<<max<<endl;
return 0;
}