View Compilation Error

0_0_11805061_6729.cpp:4: error: `main' must return `int'
0_0_11805061_6729.cpp: In function `int main(...)':
0_0_11805061_6729.cpp:5: error: expected primary-expression before "double"
0_0_11805061_6729.cpp:5: error: expected `;' before "double"
0_0_11805061_6729.cpp:5: error: expected `}' at end of input