View Compilation Error

1024492_0_0_2744.cpp:4: error: `main' must return `int'
1024492_0_0_2744.cpp: In function `int main(...)':
1024492_0_0_2744.cpp:8: error: `p' undeclared (first use this function)
1024492_0_0_2744.cpp:8: error: (Each undeclared identifier is reported only once for each function it appears in.)
1024492_0_0_2744.cpp:8: error: expected `;' before '}' token