View Compilation Error

0_0_39138919_8098.cpp: In function 'void set_g(node)':
0_0_39138919_8098.cpp:49:5: error: 'memset' was not declared in this scope
   49 |     memset(g, 0, sizeof g);
      |     ^~~~~~
0_0_39138919_8098.cpp:9:1: note: 'memset' is defined in header '<cstring>'; did you forget to '#include <cstring>'?
    8 | #include <map>
  +++ |+#include <cstring>
    9 | #include <string>