View Compilation Error

0_0_16247892_27942.cpp: In function 'int main()':
0_0_16247892_27942.cpp:14:7: error: 'nk' was not declared in this scope
  for (nk=0;nk<k;nk++){
       ^
0_0_16247892_27942.cpp:27:8: error: 'p' was not declared in this scope
   for (p=0;p<i;p++){////////////////////////////////////////
        ^