View Compilation Error

0_0_7020187_31809.cpp: In function `int main()':
0_0_7020187_31809.cpp:14: error: `p' undeclared (first use this function)
0_0_7020187_31809.cpp:14: error: (Each undeclared identifier is reported only once for each function it appears in.)
0_0_7020187_31809.cpp:14: error: `q' undeclared (first use this function)
0_0_7020187_31809.cpp:15: error: `sum1' undeclared (first use this function)
0_0_7020187_31809.cpp:16: error: `sum2' undeclared (first use this function)