View Compilation Error

0_0_36102404_1247.cpp:4:11: error: '::main' must return 'int'
 void main()
           ^
0_0_36102404_1247.cpp: In function 'int main()':
0_0_36102404_1247.cpp:12:4: error: return-statement with no value, in function returning 'int' [-fpermissive]
    return;
    ^