View Compilation Error

0_0_9335808_31426.cpp: In function `int main()':
0_0_9335808_31426.cpp:10: error: `hash' undeclared (first use this function)
0_0_9335808_31426.cpp:10: error: (Each undeclared identifier is reported only once for each function it appears in.)
0_0_9335808_31426.cpp:11: error: `p' undeclared (first use this function)