View Compilation Error

0_0_5948879_20686.cpp:4: error: `main' must return `int'
GCC/bin/../lib/gcc/mingw32/3.4.2/../../../../include/stdio.h: In function `int main(...)':
GCC/bin/../lib/gcc/mingw32/3.4.2/../../../../include/stdio.h:265: error: too many arguments to function `int getchar()'
0_0_5948879_20686.cpp:13: error: at this point in file