View Compilation Error

0_0_16815151_13524.cpp:3:11: error: '::main' must return 'int'
 void main()
           ^
0_0_16815151_13524.cpp: In function 'int main()':
0_0_16815151_13524.cpp:5:3: error: 'nbsp' was not declared in this scope
 { 
   ^