Question

Write a program that counts the letters in a given string and then display the letter count in order from high to low.

The program should:

• Display a message stating its goal
• Prompt the user to enter a string input
• Count the letters in the string (hint: use dictionaries)
• Display the letter count in order from high to low (sort your letter count)
• For example, for the input Google the output should be

G - 2

O - 2

E - 1

L - 1

• Note:
  • Make sure not to count lowercase and uppercase twice (i.e., G an g should be count together)
  • Bonus: if a few letters have the same count, sort the display in an alphabetic order (like in the example)
• Make sure to include comments that explain all your steps (starts with #). Also use a comment to sign your name at the beginning of the program!

Answer 1

PYTHON CODE:

# your name here

# displaying the description of the program
print('***** Program to count the letters in a given string. *****')
print('***** Then display the letter count in order from high to low. *****\n')

# getting input from the user
inp_str=input('Enter a string: ')

# dictionary to store the character count
char_count={}

# iterating through every character in the string
for c in inp_str:

    # changing the character to uppercase
    c=c.upper()

    # checking the character is in dictionary or not
    if c not in char_count:
        char_count[c]=1
    else:

        # increment the character count by 1
        char_count[c]+=1

# getting list of key,value pairs from the dictionary
lst=list(char_count.items())

# sorting the list by values, if a few letters have the same count,
# sort the display in an alphabetic order
lst.sort(key=lambda x:(-x[1],x[0]))

# displaying the character and count
for k,v in lst:

    print('{0} - {1}'.format(k,v))
  

  

SCREENSHOT FOR CODING:

SCREENSHOT FOR OUTPUT: