How Many Fibs? Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 65536/32768 K (Java/Others) Total Submission(s): 7007    Accepted Submission(s): 2761 Problem Description Recall the definition of the Fibonacci numbers: f1 := 1 f2 := 2 fn := fn-…

How many Fibs? Time Limit: 1000ms   Memory limit: 65536K  有疑问?点这里^_^ 题目描述 Recall the definition of the Fibonacci numbers: f1 := 1 f2 := 2 fn := fn-1 + fn-2     (n>=3) Given two numbers a and b, calculate how many Fibonacci numbers are in the range [a…

Java水了. import java.util.Scanner; import java.math.BigInteger; public class Main { public static void main(String[] args) { Scanner cin = new Scanner(System.in); BigInteger[] fibs = new BigInteger[MAXN]; // init the fibs fibs[0] = BigInteger.valueOf(…

JAVA大数.... How Many Fibs? Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 65536/32768 K (Java/Others) Total Submission(s): 3906    Accepted Submission(s): 1545 Problem Description Recall the definition of the Fibonacci numbers:  f1 := 1  f2 :…

How Many Fibs? Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 65536/32768 K (Java/Others)Total Submission(s): 6371    Accepted Submission(s): 2517 Problem Description Recall the definition of the Fibonacci numbers: f1 := 1 f2 := 2 fn := fn-1…

//compareTo 方法  是对象比较 大于 1   等于  返0  小于  返 -1 列 Date  dat1=new Date(); Date  dat2=new Date(); int va = dat1.compareTo(dat2); 如果 dat1>dat2  va=1; dat1=dat2  va=0; dat1<dat2  va=-1;…

假设现在有一个学生类 class Student { int age; public Student(int age) { this.age = age; } } 要使学生类之间能进行比较,实现System.IComparable接口的CompareTo方法 class Student : System.IComparable { int age; public Student(int age) { this.age = age; } public int CompareTo(object ob…

在项目中经常会用到字符串比较,但是有时候对字符串的操作比较多,规则各异.比如有的地方我们需要用排序规则,有的地方需要忽略大小写,我们该如何写一个比较容易操作的比较方法呢?重新实现IComparer接口不失为一个好办法. IComparable.CompareTo 方法 在MSDN上是这么解释(机器翻译过来)的: IComparable接口:定义一种特定于类型的通用比较方法,值类型或类通过实现此方法对其实例进行排序. IComparer接口:公开一种比较两个对象的方法. 详细理解就是: 在默认情况…

using System; using System.Collections.Generic; using System.Linq; using System.Text; using System.Threading.Tasks; using System.Collections; namespace Test1 { class Program { static void Main(string[] args) { string s1 = "abc"; string s2 = &quo…

private final char value[]; 字符串会自动转换为一个字符数组. public int compareTo(String anotherString) { //this -- s1 -- "hello" //anotherString -- s2 -- "hel" int len1 = value.length; //this.value.length--s1.toCharArray().length--5 int len2 = anothe…