Given two strings s and t, checkifs is a subsequence of t. A subsequence of a string is anewstring that is formed from the original string by deleting some (can be none) of the characters without disturbing the relative positions of the remaining characters. (i.e., "ace" is a subsequ...
1publicbooleanisSubsequence(String s, String t) {2List<Integer>[] idx =newList[256];//Just for clarity3for(inti = 0; i < t.length(); i++) {4if(idx[t.charAt(i)] ==null)5idx[t.charAt(i)] =newArrayList<>();6idx[t.charAt(i)].add(i);7}89intprev = 0;10for(inti = 0...
https://leetcode.com/contest/3/problems/is-subsequence/ 题目: s and a string t, check if s is subsequence of t. s and t. t is potentially a very long (length ~= 500,000) string, and s "ace"is a subsequence of"abcde"while"aec"Example 1: s ="abc", t ="ahbgdc"true.Example...
题目描述: LeetCode 392. Is Subsequence Given a string s and a string t, check if s is subsequence of t. You may assume that there is only lower case English letters in both s and t. t is potentially a very long (length ~= 500,000) string, and s is a...
}returni ==s.size(); } }; 本文转自博客园Grandyang的博客,原文链接:是子序列[LeetCode] Is Subsequence,如需转载请自行联系原博主。
Can you solve this real interview question? Is Subsequence - Given two strings s and t, return true if s is a subsequence of t, or false otherwise. A subsequence of a string is a new string that is formed from the original string by deleting some (can b
A subsequence of a string is a new string which is formed from the original string by deleting some (can be none) of the characters without disturbing the relative positions of the remaining characters. (ie, "ace" is a subsequence of "abcde" while "aec" is not). Example 1:s = "abc...
英文网址:392. Is Subsequence。 中文网址:392. 判断子序列。 思路分析 求解关键:这道题的解法其实蕴含了贪心算法的思想。 参考解答 参考解答1: public class Solution { public boolean isSubsequence(String s, String t) { int slen = s.length(); ...
) // dp[i] 中只有字母 j 的下标需要更新 dp[i][s[i] - 'a'] = i } ans := 0 // 遍历每个单词,判断是否是 s 的子序列 for _, word := range words { // 判断 word 是否是 s 的子序列,默认为是子序列 idx := 0 isSubsequence := true for _, ch := range word { // 找到当前...
题目描述: LeetCode 446. Arithmetic Slices II - Subsequence A sequence of numbers is called arithmetic if it consists of at least three elements and if the difference between any two consecutive elements is the same. For example, these are arithmetic seq