View Compilation Error

0_0_19341309_31443.cpp:2:11: error: '::main' must return 'int'
 void main()
           ^
0_0_19341309_31443.cpp: In function 'int main()':
0_0_19341309_31443.cpp:20:2: error: expected primary-expression before '}' token
  }
  ^