NiNi's Den

NiNi's Den

恥ずべきは弱い者ではない弱いままの者だ

Advance-Algorithm::homework2
problem 3 Given an integer (not necessary a decimal number) with n digits, we want to remove $m (\le n)$ digits from this number such that the resulting number is as large as possibe. Design an $O(n)$ time algorithm to solve it. problem 4 Given a 2-dimensional nn array (or matrix) of 0/1 inte...

➡read more

Advance-Algorithm::homework1

整理一下何錦文教授高等演算法課上的作業。
作業題目好像都不太會變的樣子?
所以如果你有參考我整理的題目的話,留個言讓我知道我做功德了♥
有什麼問題都可以在下面留言討論,私訊我也可以。

Written in English.

➡read more

2017::HITCON-Quals::Sakura::English

Ask to input 400 chars, then take it as a 20*20 arry
Next the binary run a function to verify the array
If the verification were success, it would give you the SHA256 hash of you input, which is flag

Let’s take a look at the function I mentioned
There are 150 while loops in this function
Before loops, it initialize lots of variables
Those loops are all similar to each:

➡read more

avatar
Terrynini
逆逆逆逆