摘要：
``` / Source : https://oj.leetcode.com/problems/reverse nodes in k group/ Created by lverpeng on 2017/7/12. Given a linked list, reverse the nodes of 阅读全文
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``` / Source : https://oj.leetcode.com/problems/swap nodes in pairs/ Created by lverpeng on 2017/7/12. Given a linked list, swap every two adjacent no 阅读全文
摘要：
``` import java.util.ArrayList; import java.util.List; import java.util.PriorityQueue; /** * Source : https://oj.leetcode.com/problems/merge-k-sorted-lists/ * * Created by lverpeng on 2017/7/11. ... 阅读全文
摘要：
``` import java.util.ArrayList; import java.util.Arrays; import java.util.List; /** * Source : https://oj.leetcode.com/problems/generate-parentheses/ * * Created by lverpeng on 2017/7/11. * * Gi... 阅读全文
摘要：
``` import java.util.ArrayList; import java.util.List; / Source : https://oj.leetcode.com/problems/merge two sorted lists/ Created by lverpeng on 2017 阅读全文
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``` import java.util.Stack; / Source : https://oj.leetcode.com/problems/valid parentheses/ Created by lverpeng on 2017/7/11. Given a string containing 阅读全文
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``` / Source : https://oj.leetcode.com/problems/remove nth node from end of list/ Created by lverpeng on 2017/7/11. Given a linked list, remove the nt 阅读全文
摘要：
``` import java.util.Arrays; import java.util.HashSet; import java.util.Set; /** * Source : https://oj.leetcode.com/problems/4sum/ * * Created by lverpeng on 2017/7/10. * * Given an array S of n... 阅读全文
摘要：
``` import java.util.*; /** * Source : https://oj.leetcode.com/problems/letter-combinations-of-a-phone-number/ * * Created by lverpeng on 2017/7/10. * * Given a digit string, return all possible... 阅读全文
摘要：
``` import java.util.*; /** * Source : https://oj.leetcode.com/problems/3sum/ * * Created by lverpeng on 2017/7/10. * * Given an array S of n integers, are there elements a, b, c in S such that ... 阅读全文