View Compilation Error

0_0_39235389_22939.cpp: In function 'int main()':
0_0_39235389_22939.cpp:10:13: error: 'strstr' was not declared in this scope
   10 |         if (strstr(a, "4") == NULL && strstr(a, "62") == NULL)
      |             ^~~~~~
0_0_39235389_22939.cpp:3:1: note: 'strstr' is defined in header '<cstring>'; did you forget to '#include <cstring>'?
    2 | #include <iostream>
  +++ |+#include <cstring>
    3 | using namespace std;