View Compilation Error

0_0_1609561_16833.cpp:3: error: `main' must return `int'
0_0_1609561_16833.cpp: In function `int main(...)':
0_0_1609561_16833.cpp:6: error: `fib' undeclared (first use this function)
0_0_1609561_16833.cpp:6: error: (Each undeclared identifier is reported only once for each function it appears in.)
0_0_1609561_16833.cpp: In function `long int fib(int)':
0_0_1609561_16833.cpp:11: error: `long int fib(int)' used prior to declaration
0_0_1609561_16833.cpp:15: error: `fih' undeclared (first use this function)