KaelCui的博客

5689. 统计匹配检索规则的物品数量 class Solution: def countMatches(self, items: List[List[str]], ruleKey: str, ruleValue: str) -> int: if ruleKey == 'type': return sum(1 for item in items if item[0] == ruleValue) elif ruleKey == 'colo

5685. 交替合并字符串 class Solution: def mergeAlternately(self, word1: str, word2: str) -> str: n1, n2 = map(len, (word1, word2)) i, j = 0, 0 res = '' while i < n1 and j < n2: res += word1[i] r