View Compilation Error

0_0_31705794_27941.cpp:5:11: error: '::main' must return 'int'
 void main()
           ^
0_0_31705794_27941.cpp: In function 'int main()':
0_0_31705794_27941.cpp:17:4: error: return-statement with no value, in function returning 'int' [-fpermissive]
    return;
    ^