String Split

Without using a built-in string split method, implement a split(s, c) method, which receives a string s and a character c and splits s at each occurrence of c, returning a list of strings.

Examples:

  • s = "split by space", c = ' '
    • Output: ["split", "by", "space"]
  • s = "beekeeper needed", c = 'e'
    • Output: ["b", "", "k", "", "p", "r n", "", "d", "d"]
  • s = "/home/../Documents/", c = '/'
    • Output: ["", "home", "..", "Documents", ""]
  • s = "", c = '?'
    • Output: []
1def split(s: str, c: str) -> List[str]:
2    res = []
3    current = []
4    for char in s:
5        if char == c:
6            res.append("".join(current))
7            current = []
8        else:
9            current.append(char)
10    res.append("".join(current))
11    return res
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a
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b
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c
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s = "a b c"
s=a b c
c=
res=[]
current=
Step 1 / 7
Step 1:
Initialize result list and current buffer
Focus: default
s="a b c"c=" "current=""