View Compilation Error

0_0_7569147_24602.cpp:29: error: `main' must return `int'
0_0_7569147_24602.cpp: In function `int main(...)':
0_0_7569147_24602.cpp:33: error: `prllf' undeclared (first use this function)
0_0_7569147_24602.cpp:33: error: (Each undeclared identifier is reported only once for each function it appears in.)