题解 | #蛇形矩阵#

• 按照找规律的思路解决
  • 找到规律：行和列都类似斐波那契数列
  • 制造规律初始值及递增

import java.io.*;
public class Main {
    public static void main(String[] args) throws IOException {
        String s = new BufferedReader(new InputStreamReader(System.in)).readLine();
        // 每一行的递增初始值
        int row = 1;
        // 每一列的递增初始值
        int column = 2;
        /**
         * 左至右递增
         * 上至下递增
         */
        for (int i = 0; i < Integer.parseInt(s); i++) {
            // 行递增并打印
            row = row + i;
            System.out.print(row + " ");
            
            // 每一行的列递增初始值
            int rowTemp = row, columnTemp = column++;
            for (int j = i; j < Integer.parseInt(s)-1; j++) {
                // 列递增并打印
                rowTemp = columnTemp++ + rowTemp;
                System.out.print(rowTemp + " ");
            }
            System.out.println();
        }
    }
}