목록PS/LeetCode (622)
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https://leetcode.com/problems/maximize-happiness-of-selected-children/description/leetcode - Maximize Happiness of Selected Children문제 유형 : 정렬 / 그리디문제 난이도 : Medium 문제You are given an array happiness of length n, and a positive integer k.There are n children standing in a queue, where the ith child has happiness value happiness[i]. You want to select k children from these n children in k turns.In..
https://leetcode.com/problems/relative-ranks/description/leetcode - Relative Ranks문제 유형 : 우선순위 큐문제 난이도 : Easy 문제You are given an integer array score of size n, where score[i] is the score of the ith athlete in a competition. All the scores are guaranteed to be unique.The athletes are placed based on their scores, where the 1st place athlete has the highest score, the 2nd place athlete has the 2n..
https://leetcode.com/problems/double-a-number-represented-as-a-linked-list/description/leetcode - Double a Number Represented as a Linked List문제 유형 : 연결 리스트, 재귀문제 난이도 : Medium 문제You are given the head of a non-empty linked list representing a non-negative integer without leading zeroes.Return the head of the linked list after doubling it. 연결리스트의 Head를 받습니다.이 연결리스트는 양의 정수를 의미합니다.두 배 하시오. 풀이재귀적으로 ..
https://leetcode.com/problems/remove-nodes-from-linked-list/description/leetcode - Remove Nodes From Linked List문제 유형 : 연결 리스트, 재귀, 스택문제 난이도 : Medium 문제You are given the head of a linked list.Remove every node which has a node with a greater value anywhere to the right side of it.Return the head of the modified linked list. 연결리스트의 head가 주어진다.노드의 다음 노드들 중 더 큰 값이 있다면, 그 노드를 삭제하라.모든 작업이 끝나고 나서의 연결 ..
https://leetcode.com/problems/delete-node-in-a-linked-list/description/leetcode - Delete Node in a Linked List문제 유형 : 연결리스트문제 난이도 : Medium 문제There is a singly-linked list head and we want to delete a node node in it.You are given the node to be deleted node. You will not be given access to the first node of head.All the values of the linked list are unique, and it is guaranteed that the given no..
https://leetcode.com/problems/boats-to-save-people/description/leetcode - Boats to Save People문제 유형 : 정렬, 그리디, 투 포인터문제 난이도 : Medium 문제You are given an array people where people[i] is the weight of the ith person, and an infinite number of boats where each boat can carry a maximum weight of limit. Each boat carries at most two people at the same time, provided the sum of the weight of those peopl..
https://leetcode.com/problems/compare-version-numbers/description/leetcode - Compare Version Numbers문제 유형 : 문자열 처리, 투 포인터, 슬라이딩 윈도우문제 난이도 : Medium 문제Given two version numbers, version1 and version2, compare them.Version numbers consist of one or more revisions joined by a dot '.'. Each revision consists of digits and may contain leading zeros. Every revision contains at least one character. Revi..
https://leetcode.com/problems/largest-positive-integer-that-exists-with-its-negative/description/leetcode - Largest Positive Integer That Exists With Its Negative문제 유형 : 정렬, 구현, 그리디, 투포인터문제 난이도 : Easy 문제Given an integer array nums that does not contain any zeros, find the largest positive integer k such that -k also exists in the array.Return the positive integer k. If there is no such integer, ..
https://leetcode.com/problems/reverse-prefix-of-word/description/leetcode - Reverse Prefix of Word문제 유형 : 문자열 처리, 스택, 큐문제 난이도 : Easy 문제Given a 0-indexed string word and a character ch, reverse the segment of word that starts at index 0 and ends at the index of the first occurrence of ch (inclusive). If the character ch does not exist in word, do nothing.For example, if word = "abcdefd" and ch = ..
https://leetcode.com/problems/number-of-wonderful-substrings/description/leetcode - Number of Wonderful Substrings문제 유형 : 비트마스킹, 비트 조작문제 난이도 : Medium 문제A wonderful string is a string where at most one letter appears an odd number of times.For example, "ccjjc" and "abab" are wonderful, but "ab" is not.Given a string word that consists of the first ten lowercase English letters ('a' through 'j'),..