View Compilation Error

0_0_39327829_10424.cpp: In function 'int main()':
0_0_39327829_10424.cpp:8:15: error: 'cin' was not declared in this scope
    8 |         while(cin>>A>>B>>n){
      |               ^~~
0_0_39327829_10424.cpp:1:1: note: 'std::cin' is defined in header '<iostream>'; did you forget to '#include <iostream>'?
  +++ |+#include <iostream>
    1 | using namespace std;
0_0_39327829_10424.cpp:20:9: error: 'printf' was not declared in this scope
   20 |         printf("%d\n",a[n]);
      |         ^~~~~~
0_0_39327829_10424.cpp:1:1: note: 'printf' is defined in header '<cstdio>'; did you forget to '#include <cstdio>'?
  +++ |+#include <cstdio>
    1 | using namespace std;