/in/foo.cc: In function 'int main()':
/in/foo.cc:13:27: warning: suggest explicit braces to avoid ambiguous 'else' [-Wdangling-else]
   13 |                         if(x%j==0)
      |                           ^
/in/foo.cc:24:26: error: incompatible types in assignment of 'long long int' to 'long long int [20000000]'
   24 |                         a=b[i+1];
      |                         ~^~~~~~~