Reverse a string
Algorithm
Input A string; Output Reverse of string complexity O(n). Reverse(s1)//reverses string s1 1. Initialize ctr := 0. 2. while(s1!=’\0’) 3. [increment ctr] ctr++, 4. Repeat for i=ctr to 0 print : *(s1+i) 5. [end]
Algorithm Description
Ctr :counter; Ctr count the number of elements in the string. For loop for print the string in the reverse order.
C Code
#include<stdio.h>
#include<conio.h>
#include<string.h>
int main()
{
char str[100];
int i,n,d;
printf(" \n Enter the string :");
gets(str);
n=strlen(str);
printf("Reverse of String is %s",strrev(str));
return(0);
}
