answer.code: In function ‘int main()’:
answer.code:6:5: error: ‘scanf’ was not declared in this scope; did you mean ‘wscanf’?
    6 |     scanf("%d", &T);
      |     ^~~~~
      |     wscanf
answer.code:35:9: error: ‘printf’ was not declared in this scope
   35 |         printf("%d\n", final[j]);
      |         ^~~~~~
answer.code:2:1: note: ‘printf’ is defined in header ‘<cstdio>’; did you forget to ‘#include <cstdio>’?
    1 | #include <iostream>
  +++ |+#include <cstdio>
    2 | using namespace std;