Design a function to reverse the word in given string in c

Reversing Words in a String using a C Function

"Design a function to reverse the word in given string" means to create a function that takes a string as input, and then reverses the order of the words in the string. For example, if the input string is "hello world", the output should be "world hello".

To reverse the order of the words in a string, you can split the string into individual words (using a space character as the delimiter), reverse the order of the resulting array of words, and then join the words back into a single string (again using space as the delimiter).

It's important to note that "reverse the word" usually means to reverse the characters within each word, not to reverse the order of the characters within the word. So, in the example "hello world", the words "hello" and "world" would be reversed to "olleh" and "dlrow", respectively, but the order of the letters within each word would remain unchanged.

To design a function to reverse the word in a given string in C, we can use the following steps:

1. Declare a function called reverse_word(), which takes a string as input and returns a reversed string as output.
2. Inside the function, create two pointers, start and end. Initialize both pointers to the beginning of the string.
3. Iterate over the string, swapping the characters at start and end until start is greater than or equal to end.
4. Return the reversed string.

C code example of the reverse_word() function:

#include <stdio.h>

char *reverse_word(char *str) {
  char *start = str;
  char *end = str + strlen(str) - 1;

  while (start < end) {
    char temp = *start;
    *start = *end;
    *end = temp;

    start++;
    end--;
  }

  return str;
}

int main() {
  char str[] = "Hello, World!";

  char *reversed_word = reverse_word(str);

  printf("The reversed word is: %s\n", reversed_word);

  return 0;
}

Output:

The reversed word is: !dlroW ,olleH