View Compilation Error

0_0_30699430_28161.cpp:2:11: error: '::main' must return 'int'
 void main()
           ^
0_0_30699430_28161.cpp: In function 'int main()':
0_0_30699430_28161.cpp:11:1: error: return-statement with no value, in function returning 'int' [-fpermissive]
 return;
 ^