View Compilation Error

0_0_33434141_7956.cpp: In function 'int main()':
0_0_33434141_7956.cpp:6:22: error: 'scnaf' was not declared in this scope
 while(~scnaf("%d", &n)){
                      ^
0_0_33434141_7956.cpp:7:12: error: operands to ?: have different types 'bool' and 'const char*'
 puts("yes" ? res[(n%4)]:"no");}
            ^