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Given a stringsand a dictionary of wordsdict, determine ifscan be segmented into a space-separated sequence of one or more dictionary words.For exampl... 阅读全文
posted @ 2015-02-09 12:50
Vae永Silence
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Given a stringsand a dictionary of wordsdict, add spaces insto construct a sentence where each word is a valid dictionary word.Return all such possibl... 阅读全文
posted @ 2015-02-09 12:49
Vae永Silence
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Given a linked list, determine if it has a cycle in it.Follow up:Can you solve it without using extra space?/** * Definition for singly-linked list. *... 阅读全文
posted @ 2015-02-09 12:47
Vae永Silence
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Given a linked list, return the node where the cycle begins. If there is no cycle, returnnull.Follow up:Can you solve it without using extra space?/**... 阅读全文
posted @ 2015-02-09 12:46
Vae永Silence
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Given a singly linked listL:L0→L1→…→Ln-1→Ln,reorder it to:L0→Ln→L1→Ln-1→L2→Ln-2→…You must do this in-place without altering the nodes' values.For exam... 阅读全文
posted @ 2015-02-09 12:44
Vae永Silence
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Given a binary tree, return thepreordertraversal of its nodes' values.For example:Given binary tree{1,#,2,3}, 1 \ 2 / 3return[1,2,3].Not... 阅读全文
posted @ 2015-02-09 12:43
Vae永Silence
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Given a binary tree, return thepostordertraversal of its nodes' values.For example:Given binary tree{1,#,2,3}, 1 \ 2 / 3return[3,2,1].No... 阅读全文
posted @ 2015-02-09 12:40
Vae永Silence
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Design and implement a data structure for Least Recently Used (LRU) cache. It should support the following operations:getandset.get(key)- Get the valu... 阅读全文
posted @ 2015-02-09 12:39
Vae永Silence
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Sort a linked list using insertion sort./** * Definition for singly-linked list. * struct ListNode { * int val; * ListNode *next; * ListNo... 阅读全文
posted @ 2015-02-09 12:37
Vae永Silence
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Sort a linked list inO(nlogn) time using constant space complexity./** * Definition for singly-linked list. * struct ListNode { * int val; * L... 阅读全文
posted @ 2015-02-09 00:25
Vae永Silence
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