[LintCode] Missing String

IamDLY 发布于2019-08-16 11:02 / 1405人阅读

Problem

Given two strings, you have to find the missing string.

Example

Given a string str1 = This is an example
Given another string str2 = is example

Return ["This", "an"]

Solution

public class Solution {
    /*
     * @param : a given string
     * @param : another given string
     * @return: An array of missing string
     */
    public List missingString(String str1, String str2) {
        // Write your code here
        List res = new ArrayList<>();
        String[] s1 = str1.split(" ");
        String[] s2 = str2.split(" ");
        if (s1.length == s2.length) {
            return res;
        }
        //assume s1.length > s2.length
        if (s1.length < s2.length) {
            String[] temp = s1;
            s1 = s2;
            s2 = temp;
        }
        
        Set unique = new HashSet<>();
        
        //save the short string array in hashset
        for (String s: s2) {
            unique.add(s);
        }
        
        //check the long string array and put the missing strings in result
        for (String s: s1) {
            if (!unique.contains(s)) {
                res.add(s);
            }
        }
        
        return res;
    }
};

超融合服务器服务器托管 LintCode missing LintCode134_LRU method_missing

文章版权归作者所有，未经允许请勿转载,若此文章存在违规行为，您可以联系管理员删除。

转载请注明本文地址：https://www.ucloud.cn/yun/70943.html

[LintCode] First Missing Positive

摘要：找第一个缺失的正整数，只要先按顺序排列好，也就是，找到第一个和不对应的数就可以了。注意数组的从开始，而正整数从开始，所以重写排列的时候要注意换成，而就是从开始的数组中的元素。 Problem Given an unsorted integer array, find the first missing positive integer. Example Given [1,2,0] re...

snifes 2019-08-14 15:20 评论0 收藏0
[LintCode] Find the Missing Number [三种方法]

摘要：求和相减是先求出到这个等差数列的和，再减去实际数组的和，就是缺失的数，第二种方法是，只要先按顺序排列好，用二分法找到第一个和不相等的数就可以了。二分法求和相减法共个数，多加了一个异或法 Problem Given an array contains N numbers of 0 .. N, find which number doesnt exist in the array. Exa...

liaoyg8023 2019-08-14 15:20 评论0 收藏0
[LintCode/LeetCode] Set Mismatch

Problem The set S originally contains numbers from 1 to n. But unfortunately, due to the data error, one of the numbers in the set got duplicated to another number in the set, which results in repetit...

Astrian 2019-08-16 12:45 评论0 收藏0
[LeetCode/LintCode] Top K Frequent Words

LeetCode version Problem Given a non-empty list of words, return the k most frequent elements. Your answer should be sorted by frequency from highest to lowest. If two words have the same frequency, t...

0x584a 2019-08-15 13:32 评论0 收藏0
[LintCode/LeetCode] Word Break

Problem Given a string s and a dictionary of words dict, determine if s can be break into a space-separated sequence of one or more dictionary words. Example Given s = lintcode, dict = [lint, code]. R...

dunizb 2019-08-14 15:30 评论0 收藏0