Functions are values too.在函数式语言中中函数都是变量,比如在javascript中package main import ( "fmt" "math")func main() { hypot := func(x,y float64) float64 { ...
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其他好文 时间:
2014-10-28 00:39:13
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130
How Many Tables
Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 65536/32768 K (Java/Others)
Total Submission(s): 14169 Accepted Submission(s): 6949
Problem Description
Today is ...
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其他好文 时间:
2014-10-27 21:22:04
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236
@Override public void unregisterDataSetObserver(DataSetObserver observer) { ? ?if (observer != null) { ? ? ? ?super.unregisterDataSetObserver(observer); ? ?} } 原因是: I too was having the...
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移动开发 时间:
2014-10-27 17:53:46
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255
Problem DescriptionIn many applications very large integers numbers arerequired. Some of these applications are using keys for secure transmission ofd...
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其他好文 时间:
2014-10-27 17:20:34
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135
You are climbing a stair case. It takesnsteps to reach to the top.Each time you can either climb 1 or 2 steps. In how many distinct ways can you climb...
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其他好文 时间:
2014-10-27 00:08:57
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277
Numeric constants are high-precisionvalues.An untyped constant takes the type needed by its context.Try printingneedInt(Big)too.package main import "f...
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其他好文 时间:
2014-10-26 21:08:04
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192
DescriptionIn the field of computer science, forest is important and deeply researched , it is a model for many data structures . Now it’s your job he...
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其他好文 时间:
2014-10-26 15:35:34
阅读次数:
169
最近一个项目,用到了图表,找了很多,发现Highcharts 这个纯js的图表插件非常好用,功能强大。做个笔记,备用。基本构成,见图:在上图中,显示了做图表时最常配置的几个项目:xAxisX坐标yAxisy坐标Credits版权信息legend图例exporting导出选项Title 标题too.....
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其他好文 时间:
2014-10-26 11:28:33
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210
水一水。。import java.math.*;
import java.util.*;
import java.io.*;
public class Main {
BigInteger[] fib = new BigInteger[505];
public void work(){
fib[1] = BigInteger.ONE;
fib[2] = BigIntege...
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编程语言 时间:
2014-10-24 20:50:50
阅读次数:
181
n!=x*b^y,
当x为正整数时,最大的y就是n!末尾0的个数了,
把n,b分别拆成素因子相乘的形式:
例如,
n=5,b=16
n=5,b=2^4,
很明显,末尾0的个数为0
10进制时,n!=a*10^x
b进制时,n!=c*b^y
很明显,n!的位数就是最大的x+1
这里计算我用了log,精度设置为1e-9
#include...
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其他好文 时间:
2014-10-24 20:47:09
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320