View Compilation Error

0_0_39095772_29681.cpp: In function 'int main()':
0_0_39095772_29681.cpp:45:9: error: 'scanf' was not declared in this scope; did you mean 'isnanf'?
   45 |         scanf("%d", &T);
      |         ^~~~~
      |         isnanf
0_0_39095772_29681.cpp:70:17: error: 'cin' was not declared in this scope
   70 |                 cin >> m;
      |                 ^~~
0_0_39095772_29681.cpp:2:1: note: 'std::cin' is defined in header '<iostream>'; did you forget to '#include <iostream>'?
    1 | #include <cstring>
  +++ |+#include <iostream>
    2 | using namespace std;
0_0_39095772_29681.cpp:75:25: error: 'printf' was not declared in this scope
   75 |                         printf("%d\n", query(l, r, x));
      |                         ^~~~~~
0_0_39095772_29681.cpp:2:1: note: 'printf' is defined in header '<cstdio>'; did you forget to '#include <cstdio>'?
    1 | #include <cstring>
  +++ |+#include <cstdio>
    2 | using namespace std;