How someone got positive delta without solving a single problem in Educational Codeforces Round 97 (Rated for Div. 2)?
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Codeforces Round 1097 (Div. 1, Based on Zhili Cup 2026)
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Codeforces Round 1097 (Div. 1, Based on Zhili Cup 2026)
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Codeforces Round 1097 (Div. 2, Based on Zhili Cup 2026)
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Codeforces Round 1097 (Div. 2, Based on Zhili Cup 2026)
4 days
Register now »
*has extra registration
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