View Compilation Error

0_0_29810380_1710.cpp: In function 'int main()':
0_0_29810380_1710.cpp:20:24: error: expected ')' before '!' token
     while(scanf("%d",n)!EOF){
                        ^
0_0_29810380_1710.cpp:20:28: error: expected ';' before ')' token
     while(scanf("%d",n)!EOF){
                            ^