蓝桥杯 字母图形(java题解)

    xiaoxiao2026-04-03  8

    问题描述 利用字母可以组成一些美丽的图形,下面给出了一个例子:

    ABCDEFG

    BABCDEF

    CBABCDE

    DCBABCD

    EDCBABC

    这是一个5行7列的图形,请找出这个图形的规律,并输出一个n行m列的图形。

    输入格式 输入一行,包含两个整数n和m,分别表示你要输出的图形的行数的列数。

    输出格式 输出n行,每个m个字符,为你的图形。

    样例输入 5 7 样例输出 ABCDEFG BABCDEF CBABCDE DCBABCD EDCBABC

    数据规模与约定 1 <= n, m <= 26。

    题解:找到规律就能解

    代码:

    import java.util.*; public class Main { public static void main(String[] args) { Scanner in = new Scanner(System.in); String[] s = {"A","B","C","D","E","F","G","H","I","J","K","L","M","N", "O","P","Q","R","S","T","U","V","W","X","Y","Z"}; int n = in.nextInt(); int m = in.nextInt(); String[][] a = new String[n][m]; int k = 0; for(int i=0;i<n;i++) { for(int j=0;j<m;j++) { if(j>=k%26) { a[i][j] = s[j-k%26]; } if(j<k%26) { a[i][j] = s[k%26-j]; } } k++; } for(int i=0;i<n;i++) { for(int j=0;j<m;j++) { System.out.print(a[i][j]); } System.out.println(); } in.close(); } }
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