1871: 数学的图表

解题思路:

注意事项:

参考代码:

while True:
    try:
        fz = [1]
        fm = [1]
        ls = [1]
        n = int(input())
        while len(fz) < n:
            fz += list(range(1,ls[-1]+2))
            fm += list(range(1,ls[-1]+2))[::-1]
            ls += list(range(1,ls[-1]+2))
            fz += list(range(1,ls[-1]+2))[::-1]
            fm += list(range(1,ls[-1]+2))
            ls += list(range(1,ls[-1]+2))
        print(f"{fz[n-1]}/{fm[n-1]}")
    except:
        break