View Compilation Error

0_0_13724021_17769.cpp:2:11: error: '::main' must return 'int'
 void main(){
           ^
0_0_13724021_17769.cpp: In function 'int main()':
0_0_13724021_17769.cpp:22:2: error: return-statement with no value, in function returning 'int' [-fpermissive]
  return;
  ^