杭电2031（进制转换）

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点击打开杭电2031

Problem Description

Input

Output

Sample Input

7 2
23 12
-4 3

Sample Output

111
1B
-11

代码实现：

import java.util.Scanner;

public class Main {

	public static void main(String[] args) {
		Scanner sc = new Scanner(System.in);
		char chs[] = {'0','1','2','3','4','5','6','7','8','9','A','B','C','D','E','F'};
		while(sc.hasNext()){
			int n = sc.nextInt();
			int r = sc.nextInt();
			boolean isNegative = false;
			if(n<0){
				n=-n;
				isNegative = true;
			}
			String str = "";
			while(n/r>0){
				str = chs[n%r]+str;
				n = n/r;
			}
			if(n%r!=0){
				str = chs[n%r]+str;
			}
			if(isNegative){
				str = "-" + str;
			}
			System.out.println(str);
		}
	}

}

杭电2031（进制转换）

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原文地址：http://blog.csdn.net/u011479875/article/details/45627803