View Compilation Error

0_0_30923238_22193.cpp: In function 'int main()':
0_0_30923238_22193.cpp:5:23: error: expected ')' before '!' token
  while(~scanf("%d",&n)!)
                       ^
0_0_30923238_22193.cpp:5:24: error: expected primary-expression before ')' token
  while(~scanf("%d",&n)!)
                        ^