Given strings S and T, find the minimum (contiguous) substring W of S, so that T is a subsequenceof W. If there is no such window in S that covers all characters in T, return the empty string "". If there are multiple such minimum-length windows…

Given strings S and T, find the minimum (contiguous) substring W of S, so that T is a subsequence of W. If there is no such window in S that covers all characters in T, return the empty string "". If there are multiple such minimum-length window…

Given strings S and T, find the minimum (contiguous) substring W of S, so that T is a subsequence of W. If there is no such window in S that covers all characters in T, return the empty string "". If there are multiple such minimum-length window…

Given a string S and a string T, find the minimum window in S which will contain all the characters in T in complexity O(n). Example: Input: S = "ADOBECODEBANC", T = "ABC" Output: "BANC" Note: If there is no such window in S…

一.题目链接:https://leetcode.com/problems/minimum-window-substring/ 二.题目大意: 给定两个字符串S和T,要求从S中找出包含T中所有字母的最短子串,同时要求时间复杂度为O(n). 三.题解: 这道看上去和https://leetcode.com/problems/longest-substring-without-repeating-characters最长不重复子序列类似,似乎都可以利用滑窗法来解决(当然,此处的窗口大小必然是动态的,不…

Given a string S and a string T, find the minimum window in S which will contain all the characters in T in complexity O(n). For example,S = "ADOBECODEBANC"T = "ABC" Minimum window is "BANC". Note:If there is no such window i…

Given strings S and T, find the minimum (contiguous) substring W of S, so that T is a subsequenceof W. If there is no such window in S that covers all characters in T, return the empty string "". If there are multiple such minimum-length windows…

Given a string S and a string T, find the minimum window in S which will contain all the characters in T in complexity O(n). Example: Input: S = "ADOBECODEBANC", T = "ABC" Output: "BANC" Note: If there is no such window in S…

Given an array nums, there is a sliding window of size k which is moving from the very left of the array to the very right. You can only see the k numbers in the window. Each time the sliding window moves right by one position. Return the max sliding…

Given a string S and a string T, find the minimum window in S which will contain all the characters in T in complexity O(n). For example,S ="ADOBECODEBANC"T ="ABC" Minimum window is"BANC". Note: If there is no such window in…

Given a string S and a string T, find the minimum window in S which will contain all the characters in T in complexity O(n). For example,S = "ADOBECODEBANC"T = "ABC" Minimum window is "BANC". Note:If there is no such window i…

原题地址 用两个指针分别记录窗口的左右边界,移动指针时忽略那些出现在S种但是没有出现在T中的字符 1. 扩展窗口.向右移动右指针,当窗口内的字符即将多于T内的字符时,停止右移 2. 收缩窗口.向右调整左指针,当窗口内的字符即将少于T内的字符时,停止右移 3. 统计结果.如果窗口内的字符包含了T内的所有字符,且窗口更小,更新最小窗口 4. 继续下一个周期(返回1) 大致思路就是这样了,在具体实现中我用了一个left变量记录当前还未完全包含的非重字符数量,比如当前窗口还差2个a和3个b,则left=…

题目 最小子串覆盖 给定一个字符串source和一个目标字符串target,在字符串source中找到包括所有目标字符串字母的子串. 样例 给出source = "ADOBECODEBANC",target = "ABC" 满足要求的解  "BANC" 注意 如果在source中没有这样的子串,返回"",如果有多个这样的子串,返回起始位置最小的子串. 挑战 要求时间复杂度为O(n) 说明 在答案的子串中的字母在目标字符串中是否…

Given a string S and a string T, find the minimum window in S which will contain all the characters in T in complexity O(n). For example,S = "ADOBECODEBANC"T = "ABC" Minimum window is "BANC". Note:If there is no such window i…

Given a string S and a string T, find the minimum window in S which will contain all the characters in T in complexity O(n). For example,S = "ADOBECODEBANC"T = "ABC" Minimum window is "BANC". Note:If there is no such window i…

Given a string S and a string T, find the minimum window in S which will contain all the characters in T in complexity O(n). For example, S = "ADOBECODEBANC" T = "ABC" Minimum window is "BANC". Note: If there is no such windo…

Given an unsorted array return whether an increasing subsequence of length 3 exists or not in the array. Formally the function should: Return true if there exists i, j, k such that arr[i] < arr[j] < arr[k] given 0 ≤ i < j < k ≤ n-1 else return…

Given an array nums, there is a sliding window of size k which is moving from the very left of the array to the very right. You can only see the k numbers in the window. Each time the sliding window moves right by one position. Return the max sliding…

题目标签:HashMap 题目给了我们一组 xy 上的点坐标,让我们找出 能组成矩形里最小面积的那个. 首先遍历所有的点,把x 坐标当作key 存入map, 把重复的y坐标 组成set,当作value 存入map. 然后遍历所有的点,找出 对角的两个点, 再去map里确认是否存在剩下的两个对角点,计算面积,一直保留最小的那个面积. Java Solution: Runtime: 214 ms, faster than 78.80% Memory Usage: 61.5 MB, less than…

Given a m x n grid filled with non-negative numbers, find a path from top left to bottom right which minimizes the sum of all numbers along its path. Note: You can only move either down or right at any point in time. Example: Input: [   [1,3,1], [1,5…

For a undirected graph with tree characteristics, we can choose any node as the root. The result graph is then a rooted tree. Among all possible rooted trees, those with minimum height are called minimum height trees (MHTs). Given such a graph, write…

Given a m x n grid filled with non-negative numbers, find a path from top left to bottom right which minimizes the sum of all numbers along its path. Note: You can only move either down or right at any point in time. Input: [ [1,3,1], [1,5,1], [4,2,1…

Given an array nums, there is a sliding window of size k which is moving from the very left of the array to the very right. You can only see the k numbers in the window. Each time the sliding window moves right by one position. For example,Given nums…

Given an unsorted array of integers, find the length of longest continuous increasing subsequence. Example 1: Input: [1,3,5,4,7] Output: 3 Explanation: The longest continuous increasing subsequence is [1,3,5], its length is 3. Even though [1,3,5,7] i…

问题描述:给定字符串S,子串T,求S中包含T的最小窗口 Given a string S and a string T, find the minimum window in S which will contain all the characters in T in complexity O(n). For example,S = "ADOBECODEBANC"T = "ABC" Minimum window is "BANC". 算法分析:…

Level:   Hard 题目描述: Given a string S and a string T, find the minimum window in S which will contain all the characters in T in complexity O(n). Example: Input: S = "ADOBECODEBANC", T = "ABC" Output: "BANC" Note: If there is…

Given two strings s1, s2, find the lowest ASCII sum of deleted characters to make two strings equal. Example 1: Input: s1 = "sea", s2 = "eat" Output: 231 Explanation: Deleting "s" from "sea" adds the ASCII value of…

不好做的一道题,发现String Algorithm可以出很多很难的题,特别是多指针,DP,数学推导的题.参考了许多资料: http://leetcode.com/2010/11/finding-minimum-window-in-s-which.html http://www.geeksforgeeks.org/find-the-smallest-window-in-a-string-containing-all-characters-of-another-string/ http://tia…

一天一道LeetCode 本系列文章已全部上传至我的github,地址:ZeeCoder's Github 欢迎大家关注我的新浪微博,我的新浪微博 欢迎转载,转载请注明出处 (一)题目 Given a string S and a string T, find the minimum window in S which will contain all the characters in T in complexity O(n). For example, S = "ADOBECODEBANC&…

原题地址:https://oj.leetcode.com/problems/minimum-window-substring/ 题意: Given a string S and a string T, find the minimum window in S which will contain all the characters in T in complexity O(n). For example,S = "ADOBECODEBANC"T = "ABC" M…