题解 | #蛇形矩阵#解题野路子

n=int(input())
start=1
a=[[0 for i in range(n)] for i in range(n)]

for i in range(n):
    while n>=i>=0:
        if i<0:
            break
        else:
            for j in range(i+1):
                a[i][j]=start
                start=start+1
                i=i-1
for i in range(n):
    for j in range(n-i):
        print(a[i][j],end=" ")
    print()