如图所示,第几行就有几个数据
奇数行:前面的数为行数递减,后面的数从1递增到行数
偶数行相反
import sys
n = int(input())
total = 0
for i in range(1,n):#记录查找的行数if total + i >= n:dif = n - totalif i % 2 != 0:#奇数行情况a = i - dif + 1b = difelse:#偶数行情况a = difb = i - dif + 1print(f"{a}/{b}")sys.exit()#退出程序total += i