View Compilation Error

0_0_39360625_17399.cpp: In member function 'void HASHMAP::init()':
0_0_39360625_17399.cpp:21:9: error: 'memset' was not declared in this scope
   21 |         memset(head, -1, sizeof(head));
      |         ^~~~~~
0_0_39360625_17399.cpp:3:1: note: 'memset' is defined in header '<cstring>'; did you forget to '#include <cstring>'?
    2 | #include <iostream>
  +++ |+#include <cstring>
    3 | 
0_0_39360625_17399.cpp: In function 'll encode()':
0_0_39360625_17399.cpp:52:5: error: 'memset' was not declared in this scope
   52 |     memset(ch, -1, sizeof(ch));
      |     ^~~~~~
0_0_39360625_17399.cpp:52:5: note: 'memset' is defined in header '<cstring>'; did you forget to '#include <cstring>'?