Pythonic code to convert 3 digit number into all possible letter combinations
$begingroup$
Given a dictionary where 1:a , 2:b ... 26:z. I need to find all the possible letter combinations that can be formed from the three digits.
Either each digit should translate to a letter individually or you can combine adjacent digits to check for a letter. You can't change the order of the digits. For example -
121 translates to aba, au, la;
151 translates to aea, oa;
101 translates to ja;
I was able to get this working but I feel my code is not very "pythonic". I am trying to figure out a more efficient & python-like solution for this problem.
# creating the dict that has keys as digits and values as letters
root_dict = {}
for num in range(0,26):
root_dict[str(num+1)] = string.ascii_lowercase[num]
# asking user for a three digit number
sequence_to_convert = raw_input('Enter three digit number n')
# storing all possible permutations from the three digit number
first_permutation = sequence_to_convert[0]
second_permutation = sequence_to_convert[1]
third_permutation = sequence_to_convert[2]
fourth_permutation = sequence_to_convert[0]+sequence_to_convert[1]
fifth_permutation = sequence_to_convert[1]+sequence_to_convert[2]
# checking if the permutations exist in the dict, if so print corresponding letters
if first_permutation in root_dict and second_permutation in root_dict and third_permutation in root_dict:
print root_dict[first_permutation]+root_dict[second_permutation]+root_dict[third_permutation]
if first_permutation in root_dict and fifth_permutation in root_dict:
print root_dict[first_permutation]+root_dict[fifth_permutation]
if fourth_permutation in root_dict and third_permutation in root_dict:
print root_dict[fourth_permutation]+root_dict[third_permutation]
python
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$begingroup$
Given a dictionary where 1:a , 2:b ... 26:z. I need to find all the possible letter combinations that can be formed from the three digits.
Either each digit should translate to a letter individually or you can combine adjacent digits to check for a letter. You can't change the order of the digits. For example -
121 translates to aba, au, la;
151 translates to aea, oa;
101 translates to ja;
I was able to get this working but I feel my code is not very "pythonic". I am trying to figure out a more efficient & python-like solution for this problem.
# creating the dict that has keys as digits and values as letters
root_dict = {}
for num in range(0,26):
root_dict[str(num+1)] = string.ascii_lowercase[num]
# asking user for a three digit number
sequence_to_convert = raw_input('Enter three digit number n')
# storing all possible permutations from the three digit number
first_permutation = sequence_to_convert[0]
second_permutation = sequence_to_convert[1]
third_permutation = sequence_to_convert[2]
fourth_permutation = sequence_to_convert[0]+sequence_to_convert[1]
fifth_permutation = sequence_to_convert[1]+sequence_to_convert[2]
# checking if the permutations exist in the dict, if so print corresponding letters
if first_permutation in root_dict and second_permutation in root_dict and third_permutation in root_dict:
print root_dict[first_permutation]+root_dict[second_permutation]+root_dict[third_permutation]
if first_permutation in root_dict and fifth_permutation in root_dict:
print root_dict[first_permutation]+root_dict[fifth_permutation]
if fourth_permutation in root_dict and third_permutation in root_dict:
print root_dict[fourth_permutation]+root_dict[third_permutation]
python
New contributor
$endgroup$
add a comment |
$begingroup$
Given a dictionary where 1:a , 2:b ... 26:z. I need to find all the possible letter combinations that can be formed from the three digits.
Either each digit should translate to a letter individually or you can combine adjacent digits to check for a letter. You can't change the order of the digits. For example -
121 translates to aba, au, la;
151 translates to aea, oa;
101 translates to ja;
I was able to get this working but I feel my code is not very "pythonic". I am trying to figure out a more efficient & python-like solution for this problem.
# creating the dict that has keys as digits and values as letters
root_dict = {}
for num in range(0,26):
root_dict[str(num+1)] = string.ascii_lowercase[num]
# asking user for a three digit number
sequence_to_convert = raw_input('Enter three digit number n')
# storing all possible permutations from the three digit number
first_permutation = sequence_to_convert[0]
second_permutation = sequence_to_convert[1]
third_permutation = sequence_to_convert[2]
fourth_permutation = sequence_to_convert[0]+sequence_to_convert[1]
fifth_permutation = sequence_to_convert[1]+sequence_to_convert[2]
# checking if the permutations exist in the dict, if so print corresponding letters
if first_permutation in root_dict and second_permutation in root_dict and third_permutation in root_dict:
print root_dict[first_permutation]+root_dict[second_permutation]+root_dict[third_permutation]
if first_permutation in root_dict and fifth_permutation in root_dict:
print root_dict[first_permutation]+root_dict[fifth_permutation]
if fourth_permutation in root_dict and third_permutation in root_dict:
print root_dict[fourth_permutation]+root_dict[third_permutation]
python
New contributor
$endgroup$
Given a dictionary where 1:a , 2:b ... 26:z. I need to find all the possible letter combinations that can be formed from the three digits.
Either each digit should translate to a letter individually or you can combine adjacent digits to check for a letter. You can't change the order of the digits. For example -
121 translates to aba, au, la;
151 translates to aea, oa;
101 translates to ja;
I was able to get this working but I feel my code is not very "pythonic". I am trying to figure out a more efficient & python-like solution for this problem.
# creating the dict that has keys as digits and values as letters
root_dict = {}
for num in range(0,26):
root_dict[str(num+1)] = string.ascii_lowercase[num]
# asking user for a three digit number
sequence_to_convert = raw_input('Enter three digit number n')
# storing all possible permutations from the three digit number
first_permutation = sequence_to_convert[0]
second_permutation = sequence_to_convert[1]
third_permutation = sequence_to_convert[2]
fourth_permutation = sequence_to_convert[0]+sequence_to_convert[1]
fifth_permutation = sequence_to_convert[1]+sequence_to_convert[2]
# checking if the permutations exist in the dict, if so print corresponding letters
if first_permutation in root_dict and second_permutation in root_dict and third_permutation in root_dict:
print root_dict[first_permutation]+root_dict[second_permutation]+root_dict[third_permutation]
if first_permutation in root_dict and fifth_permutation in root_dict:
print root_dict[first_permutation]+root_dict[fifth_permutation]
if fourth_permutation in root_dict and third_permutation in root_dict:
print root_dict[fourth_permutation]+root_dict[third_permutation]
python
python
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user168115 is a new contributor. Be nice, and check out our Code of Conduct.
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