基本算法思想----穷举
1 | 穷举法求解鸡兔同笼问题 |
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 | //穷举法求解鸡兔同笼问题 import java.util.Scanner; public class QiongJu { static int chicken,habbit; public static int qiongJu( int head, int foot){ int re,i,j; re = 0 ; for (i= 0 ;i<=head;i++) { j=head - i; if (i* 2 + j* 4 == foot) { re = 1 ; chicken = i; habbit = j; } } return re; } public static void main(String[] args) { // TODO Auto-generated method stub int re,head,foot; System.out.println( "穷举法求解鸡兔同笼问题:" ); System.out.print( "请输入头数:" ); Scanner input = new Scanner(System.in); head = input.nextInt(); System.out.print( "请输入脚数:" ); foot = input.nextInt(); re=qiongJu(head,foot); if (re == 1 ){ System.out.println( "鸡有:" +chicken+ "只,兔有" +habbit+ "只。" ); } else { System.out.println( "无法求解!" ); } } |
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