Answer Posted / vikas

// removal of duplicate character form a given string
#include <string.h>
#include <stdio.h>

int main()
{
char os[30];
char ds[20];
int i=0,j=0, c;

printf("Enter string\n");
while ((c = getchar()) != '\n')
os[i++] = c;
os[i] = '\0';

ds[0] =os[0];
ds[1] = '\0';
i = 1;
while ( os[i] != '\0'){
j = 0;
while (ds[j] != '\0') {
if (ds[j] == os[i])
break;
else
j++;
}
if (ds[j] == '\0') {
ds[j] = os[i];
ds[++j] = '\0';
}
i++;
}
printf("Original string = %s\n", os);
printf("modified string = %s\n", ds);
return 0;
}

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