View Compilation Error

0_0_19057870_19167.cpp: In function 'int main()':
0_0_19057870_19167.cpp:4:26: error: expected ')' before '!' token
     while(~scanf("%d",&n)!)  
                          ^
0_0_19057870_19167.cpp:4:27: error: expected primary-expression before ')' token
     while(~scanf("%d",&n)!)  
                           ^