Description
Problem E: How many 0's?
A Benedict monk No. 16 writes down the decimal representations of all natural numbers between and including
m and n, m ≤ n. How many 0's will he write down?
...
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其他好文 时间:
2014-08-20 19:42:02
阅读次数:
224
/System/Library/Frameworks/JavaVM.framework/Versions/Current/Commands/javauname -a显示系统隐藏文件。在终端(Terminal)中输入如下命令:defaults write ~/Library/Preferences/c...
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其他好文 时间:
2014-08-20 19:33:42
阅读次数:
206
在C程序中,文件由文件指针或者文件描述符表示。ISO C的标准I/0库函数(fopen, fclose, fread, fwrite, fscanf, fprintf等)使用文件指针,UNIX的I/O函数(open, close, read, write, ioctl)使用文件描述符。下面重点来说下...
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编程语言 时间:
2014-08-20 16:15:52
阅读次数:
274
Follow up for "Search in Rotated Sorted Array":What if duplicates are allowed?Would this affect the run-time complexity? How and why?Write a function ...
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其他好文 时间:
2014-08-20 13:47:32
阅读次数:
224
Description
FJ and his cows enjoy playing a mental game. They write down the numbers from 1 to N (1 <= N <= 10) in a certain order and then sum adjacent numbers to produce a new list with one fewer...
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其他好文 时间:
2014-08-20 10:33:36
阅读次数:
256
Question:Write a method to sort an array of strings so that all the anagrams are next to each other. 1 package POJ; 2 3 import java.util.Arrays; 4 im....
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其他好文 时间:
2014-08-20 02:41:34
阅读次数:
199
Question:You are given two sorted arrays, A and B, where A has a large enough buffer at the end to hold B.Write a method to merge B into A in sorted o...
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其他好文 时间:
2014-08-19 23:51:25
阅读次数:
309
linux mmap 内存映射mmap() vs read()/write()/lseek()通过strace统计系统调用的时候,常常能够看到mmap()与mmap2()。系统调用mmap()能够将某文件映射至内存(进程空间),如此能够把对文件的操作转为对内存的操作,以此避免很多其它的lseek()...
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其他好文 时间:
2014-08-19 22:21:55
阅读次数:
339
环境:
OpenWrt Development Trunk:
svn co svn://svn.openwrt.org/openwrt/trunk/
BUG:
1. 无线无法建立连接.
2. 无线建立连接获取IP地址失败,断开连接.
出现问题的时候会伴随以下dmesg
[ 3702.380000] ieee80211 phy0: rt2x00queue_write_tx...
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其他好文 时间:
2014-08-19 20:57:55
阅读次数:
678
Segments
Time Limit: 1000MS Memory Limit: 65536K
Total Submissions: 9564 Accepted: 2943
Description
Given n segments in the two dimensional space, write a program, which determines if ther...
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其他好文 时间:
2014-08-19 19:12:15
阅读次数:
249