The subsequence [2,1] has a sum less than or equal to 3. It can be proven that 2 is the maximum size of such a subsequence, so answer[0] = 2. The subsequence [4,5,1] has a sum less than or equal to 10. It can be proven that 3 is the maximum size of such a subsequence...
leetcode 209. Minimum Size Subarray Sum 3. Longest Substring Without Repeating Characters 使用双指针法之“滑动窗口“解题 双指针法常用的另外一种类型就是“滑动窗口”,也是两个指针一前一后,动态的调整大小的过程。关键点在于什么时候对于两个索引位置进行更新。下面以leetcode 209和3号问题作为例子进行分析和...
importjava.util.*;classSolution{publicintlengthOfLongestSubstring(String s){if(s ==null|| s.length()==0)return0;intsum=1; HashMap<Character,Integer> map =newHashMap<>();inti=0;for(intj=0; j < s.length();j++){charch=s.charAt(j);if(map.containsKey(ch)){intindex=map.get(ch);...
package leetcode // 解法一 栈 func longestValidParentheses(s string) int { stack, res := []int{}, 0 stack = append(stack, -1) for i := 0; i < len(s); i++ { if s[i] == '(' { stack = append(stack, i) } else { stack = stack[:len(stack)-1] if len(stack) ==...
来源:力扣(LeetCode) 链接:https://leetcode-cn.com/problems/longest-arithmetic-subsequence-of-given-difference 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。 很巧妙的算法,但是不是我想的 枯了 代码语言:javascript 代码运行次数:0 ...
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Given a string and a string dictionary, find the longest string in the dictionary that can be formed by deleting some characters of the given string. If there are more than one possible results, return the longest word with the smallest lexicographical order. If there is no possible result, ...
leetcode 题解,记录自己的 leetcode 解题之路。 本仓库目前分为五个部分: 第一个部分是 leetcode 经典题目的解析,包括思路,关键点和具体的代码实现。 第二部分是对于数据结构与算法的总结 第三部分是 anki 卡片, 将 leetcode 题目按照一定的方式记录在 anki 中,方便大家记忆。
package leetcode import ( "github.com/halfrost/leetcode-go/template" ) // 解法一 map,时间复杂度 O(n) func longestConsecutive(nums []int) int { res, numMap := 0, map[int]int{} for _, num := range nums { if numMap[num] == 0 { left, right, sum := 0, 0, 0 if numMap...
Subarrays with K Different Integers 参考资料: https://leetcode.com/problems/longest-substring-without-repeating-characters/ https://leetcode.com/problems/longest-substring-without-repeating-characters/discuss/1737/C++-code-in-9-lines. https://leetcode.com/problems/longest-substring-without-repeating-ch...