View Compilation Error

0_0_29282104_31769.cpp:24:11: error: '::main' must return 'int'
 void main()
           ^
0_0_29282104_31769.cpp: In function 'int main()':
0_0_29282104_31769.cpp:31:13: error: return-statement with no value, in function returning 'int' [-fpermissive]
             return;
             ^