On Sat, May 28, 2011 at 11:32 AM, Rajeev Kumar <rajeevprasa...@gmail.com> wrote:
> Design an algorithm and write code to remove the duplicate characters in a
> string without using any additional buffer.
> NOTE: One or two additional variables are fine.
> An extra copy of the array is not.
>
> --
> Thank You
> Rajeev Kumar
>
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I have a solution. Please check whether is fits the requirement:
#include<unistd.h>
#include<stdio.h>
#include<stdlib.h>
int main()
{
char input[256], ele;
int i, j, size;
printf("Enter input string::");
scanf("%s",input);
size = strlen(input);
for(i = 0; i< size; i++) {
if(input[i])
ele = input[i];
else
continue;
for(j=i+1; j < size; j++) {
input[j] ^= ele;
if(input[j]) {
input[j] ^= ele;
}
}
}
for(i=0; i < size;i++)
printf("%c",input[i]);
}
--
Dinesh Bansal
The Law of Win says, "Let's not do it your way or my way; let's do it
the best way."
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