class Solution: def checkInclusion(self, s1: str, s2: str) -> bool: s1Dict = {} for char in s1: if char not in s1Dict: s1Dict[char] = 1 else: s1Dict[char] += 1 left = 0 compareDict = {} for right in range((left + (len(s1) - 1)), len(s2)): if s2[left] in s1: compare = s2[left:right + 1] #makes a list of chars from left to right pointers for char in compare: if char not in compareDict: compareDict[char] = 1 else: compareDict[char] += 1 if compareDict == s1Dict: return True else: compareDict.clear() left += 1 continue else: left += 1 return False