View Compilation Error

0_0_34647574_18910.cpp:2:11: error: '::main' must return 'int'
 void main()
           ^
0_0_34647574_18910.cpp: In function 'int main()':
0_0_34647574_18910.cpp:7:3: error: 't' was not declared in this scope
   t=0;
   ^