每日一题（小白）暴力娱乐篇24

由题已知这是一个匹配题目，题目已经说了三阶幻方是给定的，经过镜像和旋转，镜像*2旋转*4；

总共八种方案，然后接收每次的数据去匹配（跳过0），如果匹配就输出匹配的数组，如果不匹配就输出-1。

题目给出了：492357816  旋转和镜像可以得到"672159834", "276951438", "294753618", "834159672", "438951276", "618753294", "816357492"

①存储8个固定字符串

②以字符串的形式接收给定数组

③进行比对，若为0则跳过，若不对应记录0，若对应记录下标

④输出结果，没找到ToMany；找到输出对应下标字符串

代码如下👇

public static void main(String[] args) {
			Scanner scan=new Scanner(System.in);
		    String[] s1= {
		    		"672159834", "276951438", "294753618","492357816",
		    		"834159672", "438951276", "618753294", "816357492"
		    };
		    String s2="";
		    for (int i = 0; i < 3; i++) {
				s2+=scan.nextLine();
			}
		    s2=s2.replaceAll(" ", "");
		    System.out.println(s2);//测试点
		    int count=0;
		    //System.out.println(s2.charAt(1)!='0' && s1[0].charAt(1)==s2.charAt(1));测试
		    for (int i = 0; i < s1.length; i++) {
				for (int j = 0; j < 9; j++) {
					if (s2.charAt(j)!='0' && s1[i].charAt(j)==s2.charAt(j)) {
						count++;
					}
					if (s2.charAt(j)!='0' && s1[i].charAt(j)!=s2.charAt(j)) {
						count=0;
					     break;
					}
				}
				if (count>0) {
					count=i;
					break;
				}
			}
		    if (count==0) {//本来判断赋值为-1.这里省略
				System.out.println("Too Many");
			}else {
				for (int i = 0; i < 9; i++) {
					System.out.print(s1[count].charAt(i)+" ");
					if (i==2) {
						System.out.println();
					}
					if (i==5) {
						System.out.println();
					}
					if (i==8) {
						System.out.println();
					}
				}
			}
		    
			scan.close();
    }

进行优化👇

	public static void main(String[] args) {
			Scanner scan=new Scanner(System.in);
		    String[] s1= {
		    		"672159834", "276951438", "294753618","492357816",
		    		"834159672", "438951276", "618753294", "816357492"
		    };
		    String s2="";
		    for (int i = 0; i < 3; i++) {
				s2+=scan.nextLine();
			}
		    s2=s2.replaceAll(" ", "");
		    int count=-1;//寄存下标或答案
		    for (int i = 0; i < 8; i++) {
				if (compares(s2, s1[i])) {//比较成功进行赋值
					count=i;
					break;
				} 
			}
		    if (count==-1) {//比较失败输出  太多
				System.out.println("Too Many");
			}else {
				prints(s1, count);
			}
			scan.close();
    }
	public static boolean compares(String s1,String s2) {//比较
		for (int i = 0; i < 9; i++) {
			if (s1.charAt(i)!='0') {
				if (s1.charAt(i)!=s2.charAt(i)) {
					return false;
				}
			}
		}
		return true;
	}
	public static void prints(String[] s,int x) {//打印
		for (int i = 0; i < 9; i++) {
			System.out.print(s[x].charAt(i)+" ");
			if (i==2) {
				System.out.println();
			}
			if (i==5) {
				System.out.println();
			}
			if (i==8) {
				System.out.println();
			}
		}
	}