View Compilation Error

0_0_35383955_21276.cpp: In function 'int main()':
0_0_35383955_21276.cpp:9:23: error: 'scand' was not declared in this scope
  while(scand("%d\n",&N)!=EOF && N)
                       ^
0_0_35383955_21276.cpp:13:3: error: 'cin' was not declared in this scope
   cin>>s;
   ^