Print First

• Problem Description

  
  Given a string containing only lower case letters, print first occurrence of all the letters present in that order only

• CODING ARENA

• t=int(input())

  while(t>0):

      s=input()

      a=""

      for i in s:

          if i not in a:

              a+=i

      print(a)

      t-=1

• 
  

• Test Case 1

  
  Input (stdin)

  3
  
  tamilnadu
  
  madam
  
  india
  
  

  Expected Output

  tamilndu
  
  mad
  
  inda

• Test Case 2

  
  Input (stdin)

  2
  
  sivaramakrishnan
  
  welcome
  
  

  Expected Output

  sivarmkhn
  
  welcom