String Operations In Data Structure And Algorithms Using C Language

Hello guys, welcome back to my blog. In this article, I will discuss string operations in data structure and algorithms using C language, what is a string, programs on a string, why string operations are performed, etc.

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String Operations In Data Structure And Algorithms

In C, a string is known as a null-terminated character array. That implies that after the last character, a null character (‘\0’) is saved to signify the end of the character array. For instance, if we write char str[] = “HELLO”; when we are declaring an array that has five characters, specifically, H, E, L, L, and O. Aside from these characters, a null character (‘\0′) is saved at the end of the string.

So, the internal design of the string becomes HELLO’\0’. To save a string of length 5, we require 5 + 1 places (1 extra for the null character). The title of the character array (or the string) is a pointer to the beginning of the string. The figure explains the string storage. If we had declared str as char str[5] = “HELLO”;

Program to find the length of the string

#include <stdio.h>
#include <conio.h>
int main()
{
char str[100], i = 0, length;
clrscr();
printf("\n Enter the word or string : ");
gets(str)
while(str[i] != '\0')
 i++;
length = i;
printf("\n The length of the word or string is : %d", length);
getch()
return 0;
}

Output:

Enter the word or string : HELLO
The length of the word or string is : 5

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Chetan Shidling

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