View Compilation Error

0_0_26185831_9149.cpp: In function 'int main()':
0_0_26185831_9149.cpp:27:21: error: 'p' was not declared in this scope
             if((int)p*i/100<(int)q*i/100)
                     ^
0_0_26185831_9149.cpp:27:34: error: 'q' was not declared in this scope
             if((int)p*i/100<(int)q*i/100)
                                  ^