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...
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] Output: 2 Example 3: Input: nums...
题目:41. First Missing Positive Given an unsorted integer array, find the smallest missing positive...) + 1): #初始化新列表 mynums.append(i) #将同时存在于mynums和nums,并且大于0小于len(nums)的元素值标记为0 for i in range(len(nums PAT A1099 and 2. Input Specification: Each input fi...
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...
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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