View Compilation Error

147439_0_11458.cpp:3: error: `main' must return `int'
147439_0_11458.cpp: In function `int main(...)':
147439_0_11458.cpp:6: error: expected `;' before ')' token
147439_0_11458.cpp:8: error: `cin' undeclared (first use this function)
147439_0_11458.cpp:8: error: (Each undeclared identifier is reported only once for each function it appears in.)
147439_0_11458.cpp:12: error: `cout' undeclared (first use this function)
147439_0_11458.cpp:12: error: `endl' undeclared (first use this function)