题解 | #蛇形矩阵#

Java

import java.util.*;
public class Main {
    public static void main(String[] args) {
        Scanner sc=new Scanner(System.in);
        while(sc.hasNext()){
            int n=sc.nextInt();
            int[][] sna=new int[n][n];
            sna=snake(n);
            for(int i=0;i<n;i++){
                for(int j=0;j<(n-i);j++){
                    System.out.print(sna[i][j]+" ");
                }
                System.out.println("");
            }
        }
    }
    public static int[][] snake(int n){
        int[][] s=new int[n][n];
        int j=1;
        for(int sum=0;sum<n;sum++){
            for(int i=sum;i>=0;i--){
                s[i][sum-i]=j;
                j++;
            }
        }
        return s;
    }
}