View Compilation Error

905219_0_0_30837.cpp:3: error: `main' must return `int'
905219_0_0_30837.cpp: In function `int main(...)':
905219_0_0_30837.cpp:5: error: invalid operands of types `int*' and `int' to binary `operator&'
905219_0_0_30837.cpp:12: error: non-lvalue in assignment