题解 | #蛇形矩阵#

while True: try: n = int(input()) j = 1 l = []

    for i in range(n):
        l.append(i+j)
        j += i
    for row in l:
        x = []
        for i in range((n - l.index(row))):
            if len(x) == 0:
                x.append(row)
            else:
                step = l.index(row) + 1
                step += i
                x.append(x[-1] + step)
        print(' '.join([str(x) for x in x]))
except:
    break