UVA 202 迴圈小數_uva

看不懂，先立個Flag吧

import java.util.Arrays;import java.util.Scanner;public class Main {static int[] r = new int[3003];static int[] u = new int[3003];static int[] s = new int[3003];public static void main(String[] args){Scanner scan = new Scanner(System.in);int t;while(scan.hasNext()){int n = scan.nextInt();int m = scan.nextInt();t = n;Arrays.fill(r, 0);Arrays.fill(u, 0);int count = 0;r[count++] = n/m;n = n%m;while(u[n]==0&&n!=0){u[n] = count;s[count] = n;r[count++] = 10*n/m;n = 10*n%m;}System.out.printf("%d/%d = %d.",t,m,r[0]);for(int i=1;i<count&&i<=50;++i){if(n!=0&&s[i]==n)System.out.printf("(");System.out.printf("%d",r[i]);}if(n==0)System.out.printf("(0");if(count>50)System.out.printf("...");System.out.printf(")\n");System.out.printf("   %d = number of digits in repeating cycle\n\n",n==0?1:count-u[n]);}}}