题目链接:id=1131" target="_blank">CLICK HERE~ 尽管java一下模拟水过,可是我看到别人的一段奇妙代码,贴出和大家共享. import java.math.*; import java.util.*; class Main{ public static void main(String args[]){ Scanner cin = new Scanner(System.in); BigDecimal Eight = new BigDe…

Octal Fractions 题目抽象:   将八进制小数转换成十进制小树.小数的为数很大. 可以用java  中的BigDeciaml 秒掉.  time:297ms 1 import java.math.*; 2 import java.util.*; 3 import java.io.*; 4 import java.text.*; 5 6 public class Main 7 { 8 static int MS=3005; 9 public static void main(Stri…

Octal Fractions Time Limit: 1 Sec  Memory Limit: 64 MBSubmit: 149  Solved: 98 Description Fractions in octal (base 8) notation can be expressed exactly in decimal notation. For example, 0.75 in octal is 0.963125 (7/8 + 5/64) in decimal. All octal num…

POJ 1488 题目大意:给定一篇文章,将它的左引号转成 ``(1的左边),右引号转成 ''(两个 ' ) 解题思路:水题,设置一个bool变量标记是左引号还是右引号即可 /* POJ 1488 Tex Quotes --- 水题 */ #include <cstdio> #include <cstring> int main() { #ifdef _LOCAL freopen("D:\\input.txt", "r", stdin); #…

虽然题目那么长其实就是把8进制的浮点数转换成10进制,为了练习Java Biginteger 类 我这里用的是Java,也可以用数组模拟. import java.math.BigDecimal; import java.math.RoundingMode; import java.util.Scanner; public class Main { public static void main(String[] args) { Scanner cin = new Scanner(System.…

题目链接:http://poj.org/problem?id=2389 题目大意: 大数相乘. 解题思路: java BigInteger类解决 o.0 AC Code: import java.math.BigInteger; import java.util.Scanner; public class Main { public static void main(String[] args) { Scanner sc = new Scanner(System.in); while (sc.h…

描述 Fractions in octal (base 8) notation can be expressed exactly in decimal notation. For example, 0.75 in octal is 0.953125 (7/8 + 5/64) in decimal. All octal numbers of n digits to the right of the octal point can be expressed in no more than 3n de…

题目链接:id=2506">http://poj.org/problem?id=2506 本题用的java解的.由于涉及到大数问题,假设对java中的大数操作不熟悉请点这儿:链接 思路:地推公式f[i]=f[i-1]+2*f[i-2] code: import java.math.*; import java.util.Scanner; public class Main { public static void main(String[] args) { Scanner cin=new…

一.Description Suppose you are reading byte streams from any device, representing IP addresses. Your task is to convert a 32 characters long sequence of '1s' and '0s' (bits) to a dotted decimal format. A dotted decimal format for an IP address is form…

一.Description The king pays his loyal knight in gold coins. On the first day of his service, the knight receives one gold coin. On each of the next two days (the second and third days of service), the knight receives two gold coins. On each of the ne…