View Compilation Error

0_0_20677065_31615.cpp:6:11: error: '::main' must return 'int'
 void main()
           ^
0_0_20677065_31615.cpp: In function 'int main()':
0_0_20677065_31615.cpp:18:1: error: return-statement with no value, in function returning 'int' [-fpermissive]
 return ;
 ^