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  1. #include<iostream>
  2. #include<cstdlib>
  3. using namespace std;
  4. enum Boolean{FALSE,TRUE};
  5. Boolean ispal(int a)
  6. {
  7.   int num=a;
  8.   int digit=0,rev=0;
  9.   while(a>0)
  10.     {
  11.       digit=a%10;
  12.       rev=rev*10+digit;
  13.       a=a/10;
  14.     }
  15.   if(num==rev)
  16.     return TRUE;
  17.   else 
  18.     return FALSE;
  19. }
  20. Boolean isprime(int n)
  21. {
  22.   int flag=0;
  23.   for(int i=1;i<=n/2;i++)
  24.     {
  25.       if((n%i)==0)
  26.     flag++;
  27.     }
  28.   if(flag>1)
  29.     return FALSE;
  30.   else
  31.     return TRUE;
  32. }
  33. int main()
  34. {
  35.   int input, output;
  36.   cin>>input;
  37.   for(long int i=input+1;i<10000000;i++)
  38.     {
  39.       if(isprime(i))
  40.       {
  41.     if(ispal(i))
  42.       {
  43.         cout<<i;
  44.         exit(0);
  45.       }
  46.     else
  47.       continue;
  48.       }
  49.     continue;
  50.     }
  51.   return 0;
  52. }
Success #stdin #stdout 0s 3344KB
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https://ideone.com/mSLgOg
language:
C++14 (gcc 8.3)
created:
10 years ago
visibility:
public

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