View Compilation Error

0_0_39266669_2256.cpp: In function 'int main()':
0_0_39266669_2256.cpp:21:16: error: 'scanf' was not declared in this scope
   21 |         while (scanf("%d", &n) != EOF) {
      |                ^~~~~
0_0_39266669_2256.cpp:21:35: error: 'EOF' was not declared in this scope
   21 |         while (scanf("%d", &n) != EOF) {
      |                                   ^~~
0_0_39266669_2256.cpp:2:1: note: 'EOF' is defined in header '<cstdio>'; did you forget to '#include <cstdio>'?
    1 | #include<algorithm>
  +++ |+#include <cstdio>
    2 | using namespace std;
0_0_39266669_2256.cpp:29:25: error: 'printf' was not declared in this scope
   29 |                         printf("%d ", num[i]);
      |                         ^~~~~~
0_0_39266669_2256.cpp:29:25: note: 'printf' is defined in header '<cstdio>'; did you forget to '#include <cstdio>'?
0_0_39266669_2256.cpp:31:17: error: 'printf' was not declared in this scope
   31 |                 printf("\n");
      |                 ^~~~~~
0_0_39266669_2256.cpp:31:17: note: 'printf' is defined in header '<cstdio>'; did you forget to '#include <cstdio>'?