arduino project :led binary counter part 2 Programming

hey guys today in this video we are going to program our project
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source code is available on my website:
rcc.rakshit5594.repl.co/
steps to get source code :
1 go to my website on laptop
2 scroll down and click view more in arduino section
3 click on source code in any project
4 click download and open the file it will directly open in arduino ide if it is being installed.
high and low series for the code:
p2 p3 p4. p5
0 low low low low
1 low low low high
2 low low high low
3 low low high high
4 low high low low
5 low high low high
6 low high high low
7 low high high high
8 high low low low
9 high low low high
10 high low high low
11 high low high high
12 high high low low
13 high high low high
14 high high high low
15: high high high high
high and low should always be caps and p mean pin for example p2 =pin2