View Compilation Error

0_0_7110657_27107.cpp:3: error: `main' must return `int'
0_0_7110657_27107.cpp: In function `int main(...)':
0_0_7110657_27107.cpp:5: error: expected `;' before ')' token
0_0_7110657_27107.cpp:5: error: label `n' used but not defined