Reverse Nodes in k-Group
Given a linked list, reverse the nodes of a linked list k at a time and return its modified list.
If the number of nodes is not a multiple of k then left-out nodes in the...
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其他好文 时间:
2015-07-07 17:04:14
阅读次数:
170
The gray code is a binary numeral system where two successive values differ in only one bit.Given a non-negative integer n representing the total number of bits in the code, print the sequence of gray...
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其他好文 时间:
2015-07-07 16:53:37
阅读次数:
108
第一个题目是将整数进行反转,这个题实现反转并不难,主要关键点在于如何进行溢出判断。溢出判断再上一篇字符串转整数中已有介绍,本题采用其中的第三种方法,将数字转为字符串,使用字符串比较大小的方法进行比较。代码如下: 1 class Solution { 2 public: 3 int rever...
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其他好文 时间:
2015-07-07 14:24:19
阅读次数:
100
Given an arraySofnintegers, find three integers inSsuch that the sum is closest to a given number, target. Return the sum of the three integers. You m...
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其他好文 时间:
2015-07-07 12:48:06
阅读次数:
128
$#,脚本运行时后跟的参数个数#! /bin/bashcase "$#" in 0) printf "Enter a number: " read n=$REPLY ;; *) n=$1 ;; esacx=$(( (1 + $n) * $n /...
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系统相关 时间:
2015-07-07 12:26:48
阅读次数:
175
Given an arraySofnintegers, find three integers inSsuch that the sum is closest to a given number, target. Return the sum of the three integers. You m...
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其他好文 时间:
2015-07-07 12:22:55
阅读次数:
113
解决问题的思路:
第一步:从上图中,我们可以发现:在闭区间[1,13]内的所有数经过次数有限的迭代后,它们将会变成1或者4,而1是happy number,4不是happy number。进而可以判断出闭区间[1,13]内的所有数的happy性。第二步:下面我做了一个大胆的假设,所有的正数经过可接受的有限次迭代后都将变成1或者4。由于在数学上给出证明所需的时间远远大于用程序验证,所以暂且不进行...
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移动开发 时间:
2015-07-07 11:11:47
阅读次数:
120
Find all possible combinations of k numbers that add up to a number n, given that only numbers
from 1 to 9 can be used and each combination should be a unique set of numbers.
Ensure that numbers wi...
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其他好文 时间:
2015-07-07 11:07:18
阅读次数:
94
类的对象和类的指针的区别zz如下程序:#include #include using namespace std;class Student{ public: static int number; string name;public: Student() { } void set(string s...
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其他好文 时间:
2015-07-06 23:04:59
阅读次数:
93
Given a set of candidate numbers (C) and a target number (T), find all unique combinations in C where the candidate numbers sums to T.The same repeated number may be chosen from C unlimited number of t...
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其他好文 时间:
2015-07-06 21:45:12
阅读次数:
107