蛇形矩阵

每次增加都是在原有的基础上增加。

while True:
    try:
        size = int(input())
        base = [[0 for i in range(size)] for j in range(size)]
        count = 1
        for index in range(size):
            x = index
            for i in range(x, -1, -1):
                base[i][x-i] = count
                count += 1

        res = ''
        for i in base:
            for j in i:
                if j != 0:
                    res = res + str(j) + ' '
            print(res.strip())
            res = ''
    except Exception as e:
        print(e)
        break

5
1 3 6 10 15
2 5 9 14
4 8 13
7 12
11