View Compilation Error

0_0_39371747_4399.cpp: In function 'int main()':
0_0_39371747_4399.cpp:43:11: error: 'scanf' was not declared in this scope
   43 |     while(scanf("%d",&n)!=EOF)
      |           ^~~~~
0_0_39371747_4399.cpp:43:27: error: 'EOF' was not declared in this scope
   43 |     while(scanf("%d",&n)!=EOF)
      |                           ^~~
0_0_39371747_4399.cpp:1:1: note: 'EOF' is defined in header '<cstdio>'; did you forget to '#include <cstdio>'?
  +++ |+#include <cstdio>
    1 | 
0_0_39371747_4399.cpp:47:13: error: 'printf' was not declared in this scope
   47 |             printf("%d",a[n][i]);
      |             ^~~~~~
0_0_39371747_4399.cpp:47:13: note: 'printf' is defined in header '<cstdio>'; did you forget to '#include <cstdio>'?
0_0_39371747_4399.cpp:49:9: error: 'puts' was not declared in this scope
   49 |         puts("");
      |         ^~~~