题解 | #蛇形矩阵#

if __name__ == '__main__':
    n,curNum= int(input()),1
    res = [[0]*n for i in range(n)]
    for s in range(n):
        for j in range(s+1):
            res[s-j][j] = curNum
            curNum += 1
    for row in res:
        for item in row:
            if item != 0:
                print(item,end=' ')
        print()