Question 1:Given an array of integers, find two
numbers such that they add up to a specific target number.The function twoSum
should return indices of...
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其他好文 时间:
2014-05-19 09:35:41
阅读次数:
321
题目:合并两个有序单链表思路:一开始想复杂了,以为必须在原链表上修改(绕来绕去还AC了,但是思路相当绕),其实没有,按照正常地合并两个数组同样的方法也对。代码:public
ListNode mergeTwoLists(ListNode l1, ListNode l2) { if(l1 ...
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其他好文 时间:
2014-05-19 07:48:32
阅读次数:
314
【题目】
Given a sorted array, remove the duplicates in place such that each element appear only once and return the new length.
Do not allocate extra space for another array, you must do this in place with constant memory.
For example,
Given input array A ...
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其他好文 时间:
2014-05-18 18:25:19
阅读次数:
272
【题目】
Divide two integers without using multiplication, division and mod operator.
【题意】
计算两个数的商,不能使用乘、除、取余操作
【思路】
用加法,确定多少除数相加其和恰好<=被除数
为了提高算法效率,利用贪心思想,采用滚雪球式的翻倍叠加策略,使和快速逼近被除数
集中特殊情况需要注意:
1. 结果是负数
...
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其他好文 时间:
2014-05-18 10:42:00
阅读次数:
259
【题目】
Implement next permutation, which rearranges numbers into the lexicographically next greater permutation of numbers.
If such arrangement is not possible, it must rearrange it as the lowest possible order (ie, sorted in ascending order).
The replac...
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其他好文 时间:
2014-05-18 09:54:53
阅读次数:
242
好多人都是为了找实习、找工作,看看思路,手写下这个问题的代码。如果有机会还是最好真正调试一下,还是有很多细节需要注意的。不多说了,代码记录如下:
Node* Merge(Node *h1,Node *h2)
{
Node *head,*pCurrent,*head1,*head2;
head1 = h1;
head2 = h2;
if(head1==NULL)
retu...
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其他好文 时间:
2014-05-18 02:59:29
阅读次数:
214
Remove Duplicates from Sorted List IGiven a
sorted linked list, delete all duplicates such that each element appear only
once.For example,Given 1->1->...
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其他好文 时间:
2014-05-18 01:41:31
阅读次数:
361
Given two numbers represented as strings,
return multiplication of the numbers as a string.Note: The numbers can be
arbitrarily large and are non-nega...
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其他好文 时间:
2014-05-18 01:25:07
阅读次数:
288
【题目】
原文:
1.8 Assume you have a method isSubstring which checks if one word is a substring of another. Given two strings, s1 and s2, write code to check if s2 is a rotation of s1 using only one...
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其他好文 时间:
2014-05-16 01:50:08
阅读次数:
311
【题目】
Given n non-negative integers a1, a2, ..., an, where each represents a point at coordinate (i, ai). n vertical lines are drawn such that the two endpoints of line i is at (i, ai) and (i, 0). Find two lines, which together with x-axis forms a contain...
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其他好文 时间:
2014-05-16 01:32:47
阅读次数:
406