题解 | #蛇形矩阵#
蛇形矩阵
https://www.nowcoder.com/practice/649b210ef44446e3b1cd1be6fa4cab5e
import java.util.Scanner; public class Main { public static void main(String[] args) { Scanner scanner = new Scanner(System.in); int lines = scanner.nextInt(); //表示行 for (int i = 1; i <= lines; i++) { //表示列 for (int j = 1; j <= lines - i + 1; j++) { //第一列的每行与行数的关系:(i*i-i)/2+1 //第j列与第一列的关系:(i*i-i)/2+1+(i+1)*(j-1)+(j-1)*(j-2)/2 System.out.print((i * i - i) / 2 + 1 + (i + 1) * (j - 1) + (j - 1) * (j - 2) / 2 + " "); } System.out.println(); } scanner.close(); } }