루루의 우당탕탕 개발 스토리 루루의 우당탕탕 개발 스토리

https://leetcode.com/problems/verifying-an-alien-dictionary/?envType=study-plan&id=programming-skills-i Verifying an Alien Dictionary - LeetCode Level up your coding skills and quickly land a job. This is the best place to expand your knowledge and get prepared for your next interview. leetcode.com class Solution { public boolean isAlienSorted(String[] words, String order){ HashMap map = new Has..

https://leetcode.com/problems/decrypt-string-from-alphabet-to-integer-mapping/ Decrypt String from Alphabet to Integer Mapping - LeetCode Level up your coding skills and quickly land a job. This is the best place to expand your knowledge and get prepared for your next interview. leetcode.com class Solution { public String freqAlphabets(String s) { String ans = ""; int index = 0; while(index < s...

https://leetcode.com/problems/to-lower-case/?envType=study-plan&id=programming-skills-i To Lower Case - LeetCode Level up your coding skills and quickly land a job. This is the best place to expand your knowledge and get prepared for your next interview. leetcode.com class Solution { public String toLowerCase(String s) { return s.toLowerCase(); } }

지난 블로그 포스팅 링크 : https://lulu-developmentlog.tistory.com/4 사실 저 글을 올렸을 당시엔 남은 6일동안 33/6 = 약 5(문제)를 풀면 되겠다고 다짐하면서 글을 올렸었다. 문제의 난이도가 esay로만 이루어져 있어서 이참에 잘해야겠다고 마음 먹은 Java 기초 및 문법 다지기 겸 시작해서 스퍼트를 내보았다. 확실히 코딩테스트 입문 or 배우고 싶은 언어 문법 다지기용 전략으론 괜찮았던 것 같다. 문제를 풀다보니 머리로 생각나는 로직을 Java 문법으로 바로 옮기지 못했던 아쉬움들이 남아 12일 챌린지가 끝나면 Java의 자료형을 먼저 공부하여 포스팅 해야겠다. 현재의 상태는 이렇다. (모두 푼 상태) 보아하니 12시에 바로 Day9 문제를 오픈하는 것이 아닌 ..

1. String to Char 1-1. charAt() String s = "루루입니다"; char c = s.charAt(0); System.out.println(c); 결과: 루 이를 for문을 사용하여 하나씩 반복하며 뽑기 String s = "루루입니다"; for(int i=0; i

https://leetcode.com/problems/find-the-difference/ Find the Difference - LeetCode Level up your coding skills and quickly land a job. This is the best place to expand your knowledge and get prepared for your next interview. leetcode.com class Solution { public char findTheDifference(String s, String t) { char[] s_arr = s.toCharArray(); char[] t_arr = t.toCharArray(); Arrays.sort(s_arr); Arrays.s..

https://leetcode.com/problems/goal-parser-interpretation/?envType=study-plan&id=programming-skills-i Goal Parser Interpretation - LeetCode Level up your coding skills and quickly land a job. This is the best place to expand your knowledge and get prepared for your next interview. leetcode.com class Solution { public String interpret(String command) { StringBuilder sb = new StringBuilder(); for (..

https://leetcode.com/problems/merge-strings-alternately/?envType=study-plan&id=programming-skills-i Merge Strings Alternately - LeetCode Level up your coding skills and quickly land a job. This is the best place to expand your knowledge and get prepared for your next interview. leetcode.com class Solution { public String mergeAlternately(String word1, String word2) { String[] word1Arr = word1.sp..