Delete Keys

• Problem Description

  
  Write a program to delete the keys in the dictionaries
  
  Input:
  
  1.Get Four dictionaries key-value elements
  2. The Key to be deleted
  
  Output:
  1. Display the first dictionary
  2. Display the second dictionary
  3. Display the third dictionary
  4. Display the fourth dictionary
  5. Display the concatenated dictionary
  6. Display the updated dictionaries
  
  Refer sample input and output for formatting specification. 
  
  All float values are displayed correct to 2 decimal places. 
  
  All text in bold corresponds to input and the rest corresponds to output

• CODING ARENA

• a=int(input())

  b=int(input())

  c=int(input())

  d=int(input())

  e=int(input())

  f=int(input())

  g=int(input())

  h=int(input())

  d1={}

  d2={}

  d3={}

  d4={}

  key=int(input())

  d1.update({a:b})

  d2.update({c:d})

  d3.update({e:f})

  d4.update({g:h})

  print("First Dictionary")

  print(d1)

  print("Second Dictionary")

  print(d2)

  print("Third Dictionary")

  print(d3)

  print("Fourth Dictionary")

  print(d4)

  d1.update(d2)

  d1.update(d3)

  d1.update(d4)

  print("Concatenated dictionary is")

  print(d1)

  if key in d1:

      print("Updated dictionary")

  if key in d1:

  del(d1[key])

  print(d1)

  else:

      print("Key not found")

• Test Case 1

  
  Input (stdin)

  25
  
  520
  
  23
  
  320
  
  45
  
  540
  
  12
  
  210
  
  25
  
  

  Expected Output

  First Dictionary
  
  {25: 520}
  
  Second Dictionary
  
  {23: 320}
  
  Third Dictionary
  
  {45: 540}
  
  Fourth Dictionary
  
  {12: 210}
  
  Concatenated dictionary is
  
  {25: 520, 23: 320, 45: 540, 12: 210}
  
  Updated dictionary
  
  {23: 320, 45: 540, 12: 210}

• Test Case 2

  
  Input (stdin)

  25
  
  520
  
  23
  
  320
  
  45
  
  540
  
  12
  
  210
  
  14
  
  

  Expected Output

  First Dictionary
  
  {25: 520}
  
  Second Dictionary
  
  {23: 320}
  
  Third Dictionary
  
  {45: 540}
  
  Fourth Dictionary
  
  {12: 210}
  
  Concatenated dictionary is
  
  {25: 520, 23: 320, 45: 540, 12: 210}
  
  Key not found