View Compilation Error

0_0_31700815_15428.cpp: In function 'int main()':
0_0_31700815_15428.cpp:8:10: error: 'c' was not declared in this scope
       if(c==0) break;
          ^
0_0_31700815_15428.cpp:16:9: error: 'k' was not declared in this scope
    if(n%k==0&&o%2==1) break;
         ^