Reverse a string in c without using temp

String reverse using strrev in c programming language

#include<stdio.h>

#include<string.h>

int main(){

    char str[50];

    char *rev;

    printf("Enter any string : ");

    scanf("%s",str);

    rev = strrev(str);

   

    printf("Reverse string is : %s",rev);

   

    return 0;

}

String reverse in c without using strrev

String reverse in c without using string function

How to reverse a string in c without using reverse function

#include<stdio.h>

int main(){

    char str[50];

    char rev[50];

    int i=-1,j=0;

    printf("Enter any string : ");

    scanf("%s",str);

   

    while(str[++i]!='\0');

    while(i>=0)

     rev[j++] = str[--i];

    rev[j]='\0';

  

    printf("Reverse of string is : %s",rev);

  

    return 0;

}

Sample output:

Enter any string : cquestionbank.blogspot.com

Reverse of string is : moc.topsgolb.knabnoitseuqc

Reverse a string in c using pointers

C program to reverse a string using pointers

#include<stdio.h>

int main(){

    char str[50];

    char rev[50];

    char *sptr = str;

    char *rptr = rev;

    int i=-1;

    printf("Enter any string : ");

    scanf("%s",str);

   

    while(*sptr){

     sptr++;

     i++;

    }

    while(i>=0){

     sptr--;

     *rptr = *sptr;

     rptr++;

     --i;

    }

    *rptr='\0';

  

    printf("Reverse of string is : %s",rev);

  

    return 0;

}

Sample output:

Enter any string : Pointer

Reverse of string is : retnioP