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 short string (<=100). A subsequence of a string is a new s...
importcollectionsclassSolution(object):defisSubsequence(self,s,t):""":type s: str:type t: str:rtype: bool"""defbinary_search(nums,x):low,high=0,len(nums)whilelow<high:mid=(low+high)//2ifnums[mid]<x:low=mid+1else:high=midreturnhighifnotsandnott:returnTrueelifnotsandt:returnTrueeli...
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(); int tlen = t.length(); int sl = 0; int tl = ...
class Solution(object): def isSubsequence(self, s, t): """ :type s: str :type t: str :rtype: bool """ queue = collections.deque(s) for c in t: if not queue: return True if c == queue[0]: queue.popleft() return not queue 1 2 3 4 5 6 7 8 9 10 11 12 13 本文...
classSolution {public:boolisSubsequence(strings,stringt) { size_t lens=s.length(); size_t lent=t.length();intis=0, it =0;while(is< lens && it <lent) {charcs = s[is], ct =t[it];if(cs != ct) it ++;elseis++, it++; ...
classSolution {public:boolisSubsequence(strings,stringt) {if(s.empty())returntrue;inti =0, j =0;while(i < s.size() && j <t.size()) {if(s[i] ==t[j]) {++i; ++j; }else{++j; } }returni ==s.size(); } }; 下面这种写法稍稍简洁了一些,但是思路并没有什么不同,参见代码如下...
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 short string (<=100). A subsequence of a string is a new ...
class Solution: def isSubsequence(self, s: str, t: str) -> bool: i =0 if len(s)==0: return True for item in t: if item == s[i]: i+=1 if i ==len(s): return True return False 28、给你一个下标从1开始的整数数组numbers,该数组已按非递减顺序排列,请你从数组中找出满足相加之...
[j]; } } return result; }};// 392、判断子序列-动态规划class Solution4 {public: bool isSubsequence(string s, string t) {vector<vector> dp(s.size() + 1, vector(t.size() + 1, 0)); int result = 0; for (int i = 1; i <= s.size(); i++) {for (int j = 1; j <=...
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