C Program to Sort the String and Remove Repeated Characters

This C Program sorts the string(ignore spaces) and repeated characters should be present only once.

Here is source code of the C Program to sort the string(ignore spaces) and repeated characters should be present only once. The C program is successfully compiled and run on a Linux system. The program output is also shown below.

```
/* 
```

 * C Program to Sort the String(ignore spaces) and Repeated

 * Characters should be present only Once

```
 */
```
```
#include <stdio.h>
```
```
#include <string.h>
```
```
 
```
```
void main()
```
```
{
```
```
    int i, j = 0, k = 0;
```

    char str[100], str1[10][20], temp, min;

```
 
```
```
    printf("enter the string:");
```
```
    scanf("%[^\n]s", str);
```
```
 
```
```
/* ignores spaces */
```
```
    for (i = 0; str[i]!= '\0';i++)
```
```
    {
```
```
        if (str[i] == ' ')
```
```
        {
```

            for (j = i;str[j] != '\0'; j++)

```
            {
```
```
                str[j] = str[j + 1];
```
```
            }
```
```
        }
```
```
    }
```
```
 
```
```
/* removes repeated characters */
```
```
    for (i = 0;str[i]!= '\0';i++)
```
```
    {
```

        for (j = i + 1;str[j] != '\0';j++)

```
        {
```
```
            if (str[i] == str[j])
```
```
            {
```

                for (k = j; str[k] != '\0'; k++)

```
                str[k] = str[k+1];
```
```
                j--;
```
```
            }
```
```
        }
```
```
    }
```
```
 
```
```
/* sorts the string */
```
```
    for (i = 0; str[i] != '\0'; i++) 
```
```
    {
```
```
        for (j = 0; str[j] != '\0';j++)
```
```
        {
```
```
            if (str[j] > str[i])
```
```
            {
```
```
                temp = str[i];
```
```
                str[i] = str[j];
```
```
                str[j] = temp;
```
```
            }
```
```
        }
```
```
    }
```
```
    printf("%s", str);
```
```
}
```

$ cc string15.c
$ a.out
enter the string:abcde| bcd! abcdefg??
!?abcdefg|

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