Somebody pls explain the working of strtok(str, delimiter) function in C???

Answer 1

This reference gives details 👇
https://en.cppreference.com/w/c/string/byte/strtok

Answer 2

token = strtok(NULL, " "); explain this line

Answer 3

The use of this is to tell `strtok` to try to find the next token, but `strtok` should use the same string that is given in the first call.