LintCode:最长连续序列

    xiaoxiao2022-06-22  36

    LintCode:最长连续序列

    题目要求O(n)复杂度,我这个算法虽然通过了,但是排序操作至少就是O(nlgn)的复杂度了,额,还得再想想。

    class Solution: """ @param num, a list of integer @return an integer """ def longestConsecutive(self, num): # write your code here if not num: return num = sorted(list(set(num))) ans = 1 tmp = 1 for i in range(1, len(num)): if num[i] - num[i-1] == 1 or num[i] - num[i-1] == 0: tmp += 1 else: tmp = 1 ans = max(ans, tmp) return ans
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