CodeAgon 2.0 2021 Discussion

#	User	Rating
1	tourist	4009
2	jiangly	3823
3	Benq	3738
4	Radewoosh	3633
5	jqdai0815	3620
6	orzdevinwang	3529
7	ecnerwala	3446
8	Um_nik	3396
9	ksun48	3390
10	gamegame	3386

#	User	Contrib.
1	cry	167
2	Um_nik	163
3	maomao90	162
3	atcoder_official	162
5	adamant	159
6	-is-this-fft-	158
7	awoo	157
8	TheScrasse	154
9	Dominater069	153
9	nor	153

As I didn't find any blog for this round discussion so posting this blog ↵
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Problems : ↵
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<spoiler summary="Problem 1">↵
<a href="https://ibb.co/BB3cVTm"><img src="https://i.ibb.co/89sNDPJ/Q1-1.jpg" alt="Q1-1" border="0"></a> ↵
<a href="https://ibb.co/12yMPgt"><img src="https://i.ibb.co/ysvpZ9c/Q1-2.jpg" alt="Q1-2" border="0"></a> ↵
<a href="https://ibb.co/VHTZ4tr"><img src="https://i.ibb.co/ZHxPDVt/Q1-3.jpg" alt="Q1-3" border="0"></a> ↵
</spoiler>↵
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<spoiler summary="Problem 2">↵
<a href="https://ibb.co/GTNkWNQ"><img src="https://i.ibb.co/wsjCSjh/Q2-1.jpg" alt="Q2-1" border="0"></a> ↵
<a href="https://ibb.co/5cs6ZTb"><img src="https://i.ibb.co/6sDmQYj/Q2-2.jpg" alt="Q2-2" border="0"></a> ↵
</spoiler>↵
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<spoiler summary="Problem 3">↵
<a href="https://ibb.co/dtws9FL"><img src="https://i.ibb.co/RNkGnfB/Q3-1.jpg" alt="Q3-1" border="0"></a> ↵
<a href="https://ibb.co/zxyCVJc"><img src="https://i.ibb.co/r0Cq2sP/Q3-2.jpg" alt="Q3-2" border="0"></a> ↵
<a href="https://ibb.co/0mbDHxM"><img src="https://i.ibb.co/jbX6nSM/Q3-3.jpg" alt="Q3-3" border="0"></a> ↵
</spoiler>↵
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<spoiler summary="Problem 4">↵
<a href="https://ibb.co/wyJn2V5"><img src="https://i.ibb.co/dBbNHF8/Q4-1.jpg" alt="Q4-1" border="0"></a> ↵
<a href="https://ibb.co/dbhFqJy"><img src="https://i.ibb.co/Xyw1gkT/Q4-2.jpg" alt="Q4-2" border="0"></a> ↵
<a href="https://ibb.co/kGH5cNJ"><img src="https://i.ibb.co/JcBmkDq/Q4-3.jpg" alt="Q4-3" border="0"></a> ↵
</spoiler>↵
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<spoiler summary="Problem 5">↵
<a href="https://ibb.co/Z1MrW87"><img src="https://i.ibb.co/VpqG2S5/Q5-1.jpg" alt="Q5-1" border="0"></a> ↵
<a href="https://ibb.co/H4ckcL2"><img src="https://i.ibb.co/B3hShHP/Q5-2.jpg" alt="Q5-2" border="0"></a> ↵
<a href="https://ibb.co/nCRvtfx"><img src="https://i.ibb.co/ZmNP7Kq/Q5-3.jpg" alt="Q5-3" border="0"></a> ↵
</spoiler>↵
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<spoiler summary="Problem 6">↵
<a href="https://ibb.co/t40Zz95"><img src="https://i.ibb.co/FKQsXFt/Q6-1.jpg" alt="Q6-1" border="0"></a> ↵
<a href="https://ibb.co/Tt57NW2"><img src="https://i.ibb.co/YhG1V0Q/Q6-2.jpg" alt="Q6-2" border="0"></a> ↵
</spoiler>↵
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My opinion : ↵
I found problems harder than the previous version of CodeAgon 2021. ↵
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Please share your approaches and solution for problems. in comments. ↵
PS : Sorry for unclear photos of problems (if anyone have clear photos please share them in comments)