View Compilation Error

0_0_7376163_19831.cpp:4: error: `main' must return `int'
0_0_7376163_19831.cpp: In function `int main(...)':
0_0_7376163_19831.cpp:73: error: `bzero' undeclared (first use this function)
0_0_7376163_19831.cpp:73: error: (Each undeclared identifier is reported only once for each function it appears in.)