View Compilation Error

0_0_18437716_17567.cpp: In function 'int main()':
0_0_18437716_17567.cpp:23:1: error: 'k' was not declared in this scope
 k=y;
 ^
0_0_18437716_17567.cpp:31:32: error: 'p' was not declared in this scope
 printf("Case #%d: %d %d\n",i,y/p,x/p);
                                ^