이제 다다음주면 기말고사도 다 끝난다. 나의 막학기는 끝난다.그래서 본격적으로 미국 유학 준비를 시작하려고 한다.일단 GRE 독학 관련 후기 글들.https://m.blog.naver.com/storyabroad/222199482099https://m

미국 대학원 지원 시 가장 중요한 평가요소이다. 준비 관련해서 찾아보았을 때, GRE 그리고 토플, 즉 어학 성적보다도 SOP(Statement of Purpose)와 Personal History가 더 중요하다는 글을 많이 봤다. 어학 성적은 기본이고, 결국 이 두

업로드중..You are a professional robber planning to rob houses along a street. Each house has a certain amount of money stashed, the only constraint stopp

업로드중..In the popular Minesweeper game you have a board with some mines and those cells that don't contain a mine have a number in it that indicates th

📄 Description Last night you partied a little too hard. Now there's a black and white photo of you that's about to go viral! You can't let this ruin

The DNA sequence is composed of a series of nucleotides abbreviated as 'A', 'C', 'G', and 'T'.For example, "ACGAATTCCG" is a DNA sequence.When studyin

You are given two m x n binary matrices grid1 and grid2 containing only 0's (representing water) and 1's (representing land). An island is a group of

Given a 2D grid consists of 0s (land) and 1s (water). An island is a maximal 4-directionally connected group of 0s and a closed island is an island t

You are given an m x n binary matrix grid, where 0 represents a sea cell and 1 represents a land cell.A move consists of walking from one land cell to

In a town, there are n people labeled from 1 to n. There is a rumor that one of these people is secretly the town judge.If the town judge exists, then

There is a bi-directional graph with n vertices, where each vertex is labeled from 0 to n - 1 (inclusive). The edges in the graph are represented as a

업로드중..There is an undirected star graph consisting of n nodes labeled from 1 to n. A star graph is a graph where there is one center node and exactly

Given two binary trees original and cloned and given a reference to a node target in the original tree.The cloned tree is a copy of the original tree.

You are given a string s. We want to partition the string into as many parts as possible so that each letter appears in at most one part.Note that the

Given a pattern and a string s, find if s follows the same pattern.Here follow means a full match, such that there is a bijection between a letter in

📄 Description You are given row x col grid representing a map where gridi = 1 represents land and gridi = 0 represents water. Grid cells are connect

Given a rectangular matrix of characters, add a border of asterisks(\*) to it.Forthe output should beexecution time limit 4 seconds (py3)input array.s

Write a function that reverses characters in (possibly nested) parentheses in the input string. Input strings will always be well-formed with matching

인덱싱: 지정된 인덱스의 값을 return 받기 떄문에 해당 인덱스 값이 없으면 error 발생인덱스 슬라이싱: 해당하는 sequence를 return 받기 때문에 해당 sequence가 없으면 빈 배열을 return이게 어느 문제에서 썼던 거더라..

There are n cities connected by some number of flights. You are given an array flights where flights\[i] = $from_i$, $to_i$, $price_i$ indicates that