1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
|
#!/usr/bin/env python
# -*- coding: utf-8 -*-
from typing import List
def letter_combinations(s: str) -> List[str]:
phone = {
'2': ['a', 'b', 'c'],
'3': ['d', 'e', 'f'],
'4': ['g', 'h', 'i'],
'5': ['j', 'k', 'l'],
'6': ['m', 'n', 'o'],
'7': ['p', 'q', 'r', 's'],
'8': ['t', 'u', 'v'],
'9': ['w', 'x', 'y', 'z'],
}
result = ['']
for digit in s:
new_result = []
for res in result:
for letter in phone[digit]:
new_result.append(res + letter)
result = new_result
return result
s = '35'
combinations_list = letter_combinations(s)
print("[", ", ".join(f'"{comb}"' for comb in combinations_list), "]")
|
