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Write a C Program to Replace occurence of character by another character

robaa
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2022-11-24
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Write a C Program to Replace occurence of character by another character. Here’s simple Program to Replace occurence of character by another character using Recursion in C Programming Language.

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robaa
2022-11-24
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Recursion : :

  • Recursion is the process of repeating items in a self-similar way. In programming languages, if a program allows you to call a function inside the same function, then it is called a recursive call of the function.
  • The C programming language supports recursion, i.e., a function to call itself. But while using recursion, programmers need to be careful to define an exit condition from the function, otherwise it will go into an infinite loop.
  • Recursive functions are very useful to solve many mathematical problems, such as calculating the factorial of a number, generating Fibonacci series, etc.

Below is the source code for C Program to Replace occurence of character by another character using Recursion which is successfully compiled and run on Windows System to produce desired output as shown below :

 
 

SOURCE CODE : :

/* Replace  each occurence of a character by another character*/


#include<stdio.h>
void f(char *s, char a, char b);
int main()
{
        char str[100],a,b;
        printf("Enter a string : ");
        gets(str);
        printf("Enter two characters below (1st - replace character , 2nd - replace with ::\n");
        scanf("%c %c",&a,&b);
        f(str,a,b);
        printf("\nReplaced String is :: ");
        puts(str);
        return 0;
}
void f(char *str, char a, char b)
{
    if(*str=='\0')
                return;
    if(*str==a)
                *str=b;
        f(str+1,a,b);
}

OUTPUT  : :

**************** OUTPUT **************


Enter a string : CodezClub
Enter two characters below (1st - replace character , 2nd - replace with ::
C
W

Replaced String is :: WodezWlub

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