You are climbing a stair case. It takes n steps to reach to the top.
Each time you can either climb 1 or 2 steps. In how many distinct ways can you climb to the top?
题意: 求上n个台阶的方法数,要么走一步,要么两步。
...
分类:
其他好文 时间:
2015-04-03 15:27:25
阅读次数:
115
比如前台一个js object:{ aa: "cc\dd"}$d = '{\"aa\": \"cc\\dd\"}';这时候用 json_decode($d, true) 会返回NULL, 如果用stripslashes 处理的话,斜杠都没了,会变成 aa: ccdd怎么能支持带 \ 的decode。...
分类:
Web程序 时间:
2015-04-03 13:04:43
阅读次数:
241
web端和app端base64解码时中文乱码的问题.web端:String data = new BASE64Encoder().encode(data.getBytes("UTF-8"));app端String data2 = new String(Base64.decode(data), "UT...
分类:
其他好文 时间:
2015-04-02 22:13:15
阅读次数:
140
http://dev.mysql.com/doc/refman/5.6/en/memory-use.htmlThe following list indicates some of the ways that the mysqld server uses memory. Where applicab...
分类:
数据库 时间:
2015-04-02 22:12:18
阅读次数:
237
byte[]key=Base64.decode("YWJjZGVmZ2hpamtsbW5vcHFyc3R1dnd4".getBytes(),Base64.DEFAULT);byte[]data=value.getBytes("UTF-8");System.out.println("ECB加密解密")...
分类:
移动开发 时间:
2015-04-02 20:41:07
阅读次数:
191
A message containing letters from A-Z is
being encoded to numbers using the following mapping:
'A' -> 1
'B' -> 2
...
'Z' -> 26
Given an encoded message containing digits, determine the total ...
分类:
其他好文 时间:
2015-04-02 10:26:41
阅读次数:
127
Last login: Wed Apr 1 23:44:36 on ttys000
localhost:~ apple$ sudo tcpdump -i en0 host 192.168.0.1
tcpdump: verbose output suppressed, use -v or -vv for full protocol decode
listening on en0, link-...
分类:
其他好文 时间:
2015-04-02 01:30:31
阅读次数:
380
如何输出一个带有小数点的数字。 ? ?select to_char(abs(3213213), decode(instr(to_char(abs(‘3213213‘)), ‘.‘), 0,‘FM9,999,999,999,990‘,‘FM9,999,999,999,990.999999999‘)) as huja from dual; ?上述的语句...
分类:
数据库 时间:
2015-04-01 23:57:55
阅读次数:
343
You are climbing a stair case. It takes n steps to reach to the top.
Each time you can either climb 1 or 2 steps. In how many distinct ways can you climb to the top?
#include
#include
using name...
分类:
其他好文 时间:
2015-04-01 13:25:47
阅读次数:
104
xml格式转成array';$res = @simplexml_load_string($str,NULL,LIBXML_NOCDATA);$res = json_decode(json_encode($res),true);print_r($res);
分类:
Web程序 时间:
2015-04-01 10:59:24
阅读次数:
120