Ruizhi Ma's Blog

Keep Calm and Carry On

Problem 245

Solution URL https://leetcode.com/submissions/detail/420526530/ 代码 class Solution { //ans: modify according to Pro244 //Time: O(N) //Space: O(N) int minDis = Integer.MAX_VALUE; ...

Posted by Ruizhi Ma on November 15, 2020

Problem 244

Solution URL https://leetcode.com/submissions/detail/420198500/ 代码 class WordDistance { //ans: Solution //Time: O(N) //Space: O(N) //store words and corresponding indexes Ma...

Posted by Ruizhi Ma on November 14, 2020

Problem 275

Solution URL https://leetcode.com/submissions/detail/416520573/ 代码 class Solution { public int hIndex(int[] citations) { //ans: Solution Arrays.sort(citations); int ...

Posted by Ruizhi Ma on November 4, 2020

Problem 274

Solution URL https://leetcode.com/submissions/detail/416520573/ 代码 class Solution { public int hIndex(int[] citations) { //ans: Solution Arrays.sort(citations); int ...

Posted by Ruizhi Ma on November 3, 2020

Problem 299

Solution URL https://leetcode.com/submissions/detail/416210633/ 代码 class Solution { public String getHint(String secret, String guess) { //ans: Solution. int bulls = 0; ...

Posted by Ruizhi Ma on November 2, 2020

Problem 243

Solution URL https://leetcode.com/submissions/detail/416221951/ 代码 class Solution { public int shortestDistance(String[] words, String word1, String word2) { //ans: Solution ...

Posted by Ruizhi Ma on November 2, 2020

Problem 379

Solution URL https://leetcode-cn.com/submissions/detail/120268480/ 代码 class PhoneDirectory { //https://leetcode-cn.com/problems/design-phone-directory/solution/379-dian-hua-mu-lu-guan-li-xi-...

Posted by Ruizhi Ma on November 1, 2020

Problem 348

Solution URL https://leetcode-cn.com/submissions/detail/120265439/ 代码 class TicTacToe { //ans: https://leetcode-cn.com/problems/design-tic-tac-toe/solution/348-pan-ding-jing-zi-qi-sheng-fu-b...

Posted by Ruizhi Ma on November 1, 2020

Problem 277

Solution URL https://leetcode.com/submissions/detail/415675011/ 代码 /* The knows API is defined in the parent class Relation. boolean knows(int a, int b); */ public class Solution extends ...

Posted by Ruizhi Ma on November 1, 2020

Problem 359

Solution URL https://leetcode.com/submissions/detail/415238637/ 代码 class Logger { //ans: Solution //use hashMap to store msg and timestamp HashMap<String, Integer> msg; /...

Posted by Ruizhi Ma on October 31, 2020