Remove Repeated Characters in a String

• Problem Description

  
  Write a C program to remove all repeated characters in a string

• CODING ARENA

• #include <stdio.h>

  #include <string.h>

   

  int main()

  {

    char str[100];

    int i, j, k;

  
  

    scanf("%s",str);

    printf("%s\n",str);

   

    for(i = 0; i < strlen(str); i++)

    {

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

    {

    if(str[j] == str[i])  

  {

    for(k = j; str[k] != '\0'; k++)

  {

  str[k] = str[k + 1];

  }

    }

  }

  }

  printf("%s", str);

    return 0;

  }

• Test Case 1

  
  Input (stdin)

  srmuniversity
  
  

  Expected Output

  srmuniversity
  
  srmunivety

• Test Case 2

  
  Input (stdin)

  madam
  
  

  Expected Output

  madam
  
  mad