问题描述：
Given two integers n and k, return all possible combinations of k numbers out of 1 ... n.
For example,
If n = 4 and k = 2, a solution is:
[ [2,4], [3,4], [2,3], [1,2], [1,3], [1,4],]
解题思路...
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其他好文 时间：
2014-07-31 00:04:35
阅读次数：
204
题目描述 Give you a lot of positive integers, just to find out how many prime numbers there are.. In each case, there is an integer N representing the num...
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其他好文 时间：
2014-07-30 23:35:35
阅读次数：
300
to be added...gdb a.out[Inferior 1 (process 9718) exited with code 05](gdb) listLine number 15 out of range; t.c has 14 lines.(gdb) list 11 #include2 ...
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数据库 时间：
2014-07-30 23:33:25
阅读次数：
352
Fibonacci Numbers
Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 32768/32768 K (Java/Others)
Total Submission(s): 1766 Accepted Submission(s): 695
Problem Description
The Fibon...
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其他好文 时间：
2014-07-30 20:50:54
阅读次数：
276
Given a binary tree containing digits from 0-9 only, each root-to-leaf path could represent a number.An example is the root-to-leaf path 1->2->3 which...
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其他好文 时间：
2014-07-30 11:30:33
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247
基本输入输出
5.1基本输出
print XXX //同一行输出
println XXX //换行输出
输出字符串：
def message ="My name is Michael"
println("here is :"+${message})
输出列表和映射
def numbers =[11,12,13,14]
println "Numbers:${nu...
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其他好文 时间：
2014-07-30 10:08:13
阅读次数：
287
题目：Given two integers n and k, return all possible combinations of k numbers out of 1 ... n.For example,If n = 4 and k = 2, a solution is:[ [2,4], ...
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编程语言 时间：
2014-07-30 09:58:03
阅读次数：
218
Noldbach problem
time limit per test
2 seconds
memory limit per test
64 megabytes
input
standard input
output
standard output
Nick is interested in prime numbers. Once h...
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数据库 时间：
2014-07-30 01:07:23
阅读次数：
308
Palindromes
A regular palindrome is a string of numbers or letters that is the same forward as backward. For example, the string "ABCDEDCBA" is a palindrome because it is the same when t...
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其他好文 时间：
2014-07-29 21:57:12
阅读次数：
308
1. 为什么用string::size_type而不是int？--Why usestring::size_type?intis supposed to work! it holds numbers!--A short holds numbers too. So does a signed char....
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编程语言 时间：
2014-07-29 17:37:52
阅读次数：
278
