View Compilation Error

0_0_29210869_1713.cpp: In function 'int main()':
0_0_29210869_1713.cpp:19:24: error: 'scanf' was not declared in this scope
     while(scanf("%d",&n)!=EOF&&n){
                        ^
0_0_29210869_1713.cpp:19:27: error: 'EOF' was not declared in this scope
     while(scanf("%d",&n)!=EOF&&n){
                           ^
0_0_29210869_1713.cpp:20:26: error: 'printf' was not declared in this scope
         printf("The %d",n);
                          ^