第一周 LeetCode41 First Missing Positive First Missing Positive LeetCode上的41题:https://leetcode-cn.com/problems/first-missing-positive/description/ First Missing Positive 题目 题解 代码 题目 Given an unsorted integer a
Given an unsorted integer arraynums, return the smallest missing positive integer. You must implement an algorithm that runs inO(n)time and uses constant extra space. Example 1: Input: nums = [1,2,0] Output: 3 Explanation: The numbers in the range [1,2] are all in the array. Example...
Smallest Missing Non-negative Integer After Operations Maximum Number of Integers to Choose From a Range II 参考资料: https://leetcode.com/problems/first-missing-positive/ https://leetcode.com/problems/first-missing-positive/discuss/17071/My-short-c++-solution-O(1)-space-and-O(n)-time LeetCo...
今天和大家聊的问题叫做 缺失的第一个正数,我们先来看题面: https://leetcode-cn.com/problems/first-missing-positive/ Given an unsorted integer array, find the smallest missing positive integer. 题意 给你一个未排序的整数数组,请你找出其中没有出现的最小的正整数 。你的算法的时间复杂度应为O(n),...
Given an unsorted integer arraynums, return the smallest missing positive integer. You must implement an algorithm that runs inO(n)time and uses constant extra space. Example 1: Input: nums = [1,2,0] Output: 3 Example 2: Input: nums = [3,4,-1,1] ...
41. First Missing Positive Given an unsorted integer array, find the smallest missing positive integer. Example 1: Input: [1,2,0] Output: 3 Example 2: Input: [3,4,-1,1] Output: 2 Example 3: Input: [7,8,9,11,12] Output: 1 代码 使用hash set存 class Solution { public: in...
Given an unsorted integer array, find the smallest missing positive integer. Example 1: Input: [1,2,0] Output: 3 Example 2: Input: [3,4,-1,1] Output: 2 Example 3: Input: [7,8,9,11,12] Output: 1 Note: Your algorithm should run in O(n) time and uses constant extra space. ...
First Missing Positive LeetCode上的41题:https://leetcode-cn.com/problems/first-missing-positive/description/ First Missing Positive 题目 题解 代码 题目 Given an unsorted integer array, find the smallest missing ...First Missing Positive -- LeetCode 原题链接: http://oj.leetcode.com/problems/...
41. First Missing Positive Given an unsorted integer array, find the smallest missing positive integer. input: one array output: one integer test cases: [0,1,0,2,1,0,1,3,2,1,2,1] => 6 Assumption: No Data Structure: Monotonic Increasing Stack: find the left low boundary top_elemen...
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