View Compilation Error

0_0_32466906_24550.cpp: In function 'void init()':
0_0_32466906_24550.cpp:8:9: error: return-statement with a value, in function returning 'void' [-fpermissive]
  return 0;
         ^
0_0_32466906_24550.cpp: In function 'int main()':
0_0_32466906_24550.cpp:13:20: error: 'n' was not declared in this scope
  while(scanf("%d",&n)!=EOF)
                    ^