hi there...

i have a problem here..how to remove duplicate chars from a string
example:
input AAA BBB CCC
output A B C

can anybody help me...

: hi there...
:
: i have a problem here..how to remove duplicate chars from a string
: example:
: input AAA BBB CCC
: output A B C
:
: can anybody help me...
:

the string::at(int index) function lets you get a hold of individual characters, so you need to have an array to hold all characters. Then make a loop and read each character in the string and compare them to what is in your other array.

: : hi there...
: :
: : i have a problem here..how to remove duplicate chars from a string
: : example:
: : input AAA BBB CCC
: : output A B C
: :
: : can anybody help me...
: :
:
: the string::at(int index) function lets you get a hold of individual characters, so you need to have an array to hold all characters. Then make a loop and read each character in the string and compare them to what is in your other array.
:

then how to remove the duplicated chars, can you show me some code..
thanks..

: : : hi there...
: : :
: : : i have a problem here..how to remove duplicate chars from a string
: : : example:
: : : input AAA BBB CCC
: : : output A B C
: : :
: : : can anybody help me...
: : :
: :
: : the string::at(int index) function lets you get a hold of individual characters, so you need to have an array to hold all characters. Then make a loop and read each character in the string and compare them to what is in your other array.
: :
:
: then how to remove the duplicated chars, can you show me some code..
: thanks..
:
:
Here is a simplest way, but not the fastest one:

char* deldupchars (char* s) {
  char* dups = strdup (s);

  if (dups) {
    char* psrc = dups;
    char* pdest = s;
    char ch;

    pdest [0] = '\0';
    while ((ch = *psrc++) != '\0') {
      if (! strchr (pdest, ch)) {
        *pdest++ = ch;
      }
    }
    pdest [0] = '\0';
    free (dups);
  }
  return s;
}

: hi there...
:
: i have a problem here..how to remove duplicate chars from a string
: example:
: input AAA BBB CCC
: output A B C
:
: can anybody help me...
:

C-style null terminated character array type of string OR C++ STL string container? If the duplicate characters are always going to be adjacent to each other and C++ is an option, then you could just call the STL unique function and then either following it along with a call to the erase member function (if using C++ STL string containers) or instead just setting a new NULL terminating character if using C-style strings.

: hi there...
:
: i have a problem here..how to remove duplicate chars from a string
: example:
: input AAA BBB CCC
: output A B C
:
: can anybody help me...
:

Another solution. string str2 contains the final result.

#include <iostream>
#include <string>
using namespace std;

int main()
{
	string str1 = "ABC ADC BCA";
	string str2;
	int pos;
	for(int i = 0; i < str1.length(); i++)
	{
		if( (pos = str2.find(str1[i])) < 0)
			str2 += str1[i];

	}
	cout << str2 << endl;
	return 0;
}

: : hi there...
: :
: : i have a problem here..how to remove duplicate chars from a string
: : example:
: : input AAA BBB CCC
: : output A B C
: :
: : can anybody help me...
: :
:
: Another solution. string str2 contains the final result.
:

: #include <iostream>
: #include <string>
: using namespace std;
: 
: int main()
: {
: 	string str1 = "ABC ADC BCA";
: 	string str2;
: 	int pos;
: 	for(int i = 0; i < str1.length(); i++)
: 	{
: 		if( (pos = str2.find(str1[i])) < 0)
: 			str2 += str1[i];
: 
: 	}
: 	cout << str2 << endl;
: 	return 0;
: }
: 

:


its really working, but the solution in C.what method can we use.

I know you want us to do your homework for you. You should have enough hints to do it yourself. Post your code and ask questions. Hint: strchr() function will find a chacter in a string.

//try to run this
//BY way can I ask you from where you got this question ?
#include<stdio.h>
#include<string.h>
char* remove(char* s)
{
char *temp;
while(*s)
{
if(strchr(temp,*s)==NULL)
strncat(temp,s,1);
s++;
}
return temp;
}
int main()
{
char str[100];
puts("str:");
gets(str);
puts(remove(str));
return 0;
}

Almost 4 years is far too long to be bumping a post.

hhhh ~~ wow
I didn't see the date,,,,Thanks 4 telling me