DDOING

Record my study

My code

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class Solution:
    def isSubsequence(self, s: str, t: str) -> bool:
        i = 0
        if s == "":
            return True
        for c in t:
            if c == s[i]:
                i += 1
            
            if i == len(s):
                return True
            
        return False

Other code

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class Solution:
    def isSubsequence(self, s: str, t: str) -> bool:
        for c in s:
            i = t.find(c)
            if i == -1:    return False
            else:   t = t[i+1:]
        return True

참고