View Compilation Error

0_0_22226684_6233.cpp: In function 'int main()':
0_0_22226684_6233.cpp:17:7: error: 'j' was not declared in this scope
   for(j=1;j<N;j++)
       ^
0_0_22226684_6233.cpp:24:6: error: 'j' was not declared in this scope
   if(j!=N) puts("YES");
      ^