Solution

class Solution:

self.api $-$ api

print$("$Press run code to see this in the consolel"$)$

#You can initiate and calculate things here

def get$\_$buy$\_$day$($self$)$:

Return the day which you buy silver. The first day has number zero.

This method is called first, and only once.

:rtype: int

$"$ Write your code here

return $-2$

def get$\_$sell$\_$day$($self$)$:

Return the day to sell silver on$.$ This day has to be after $($Breater

than$)$ the buy day. The first day has number zero $($although this is not

a valid sell day$).$ This method is called second, and only once

:rempe: int

# Write your code here