public int longestConsecutive(int[] nums) { if(nums.length == 0) { return 0; } // 排序 Arrays.sort(nums); int maxLen = 1; int tempLen = 1; // 对于连续的定义是什么? for(int i = 1; i < nums.length; i++) { int num = nums[i]
128. Longest Consecutive Sequence # 题目 # Given an unsorted array of integers, find the length of the longest consecutive elements sequence. Your algorithm should run in O(n) complexity. Example: Input: [100, 4, 200, 1, 3, 2] Output: 4 Explanation: Th
[LeetCode] 128. Longest Consecutive Sequence题目Given an unsorted array of integers, find the length of the longest consecutive elements sequence.Your algorithm should run in O(n) complexity. 样例Input: [100, 4, 200, 1, 3, 2] Output: 4 Explanation: The longest consecutive elements sequence ...
实现 publicintlongestConsecutive(int[]nums){if(nums.length==0){return0;}// 排序Arrays.sort(nums);intmaxLen=1;inttempLen=1;// 对于连续的定义是什么?for(inti=1;i<nums.length;i++){intnum=nums[i];intpre=nums[i-1];if(num-pre==1){tempLen++;}else{// 断开tempLen=1;}maxLen=Math....
The longest consecutive elements sequence is[1, 2, 3, 4]. Return its length:4. Your algorithm should run in O(n) complexity. 给一个非排序的整数数组,找出最长连续序列的长度。要求时间复杂度:O(n)。 解法1:要O(n)复杂度,排序显然不行,要用hash table。将序列中的所有数存到一个unordered_set中...
【leetcode 128】Longest Consecutive Sequence Given an unsorted array of integers, find the length of the longest consecutive elements sequence. For example, Given [100, 4, 200, 1, 3, 2], The longest consecutive elements sequence is [1, 2, 3, 4]...Leet...
The longest consecutive elements sequence is [1, 2, 3, 4]. Return its length: 4. Your algorithm should run in O(n) complexity. 给一个非排序的整数数组,找出最长连续序列的长度。要求时间复杂度:O(n)。 解法1:要O(n)复杂度,排序显然不行,要用hash table。将序列中的所有数存到一个unordered_...
Given an unsorted array of integersnums, returnthe length of the longest consecutive elements sequence. You must write an algorithm that runs inO(n)time. Example 1: [1, 2, 3, 4] Example 2: Input: nums = [0,3,7,2,5,8,4,6,0,1] ...
Given an unsorted array of integers nums, return the length of the longest consecutive elements sequence.You must write an algorithm that runs in O(n) time. Example 1:Input: nums = [100,4,200,1,3,2]Output: 4Explanation: The longest consecutive elements s
来源：力扣（LeetCode） 链接：https://leetcode-cn.com/problems/longest-consecutive-sequence/ 著作权归领扣网络所有。商业转载请联系官方授权，非商业转载请注明出处。解法一：哈希表因为哈希查找比较快，所以用哈希表来辅助计算，具体处理过程如下：首先，用HashSet将原数组中的数字去重得到numsSet；然后，遍历...