Please give some problems where bitwise operation technique is useful (easy to difficult)..
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Codeforces Round 1097 (Div. 1, Based on Zhili Cup 2026)
18:35:30
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Codeforces Round 1097 (Div. 1, Based on Zhili Cup 2026)
18:35:30
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Codeforces Round 1097 (Div. 2, Based on Zhili Cup 2026)
18:35:30
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Codeforces Round 1097 (Div. 2, Based on Zhili Cup 2026)
18:35:30
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Take a look at the Meta Hacker Cup problem Second Second Meaning, from this year's qualification round.
It was really a great problem. Hacker cup had plenty of high quality problems! Thanks sir.