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codeforces-1593E -Gardener and Tree
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CF1421C. Palindromifier
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CF1419 D2. Sage's Birthday (hard version)
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CF79D Password
luogu
luogu题解
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Codeforces Round #687
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CF1436D Bandit in a City
luogu题解
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CF708C Centroids
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Codeforces Round #677 (Div. 3)
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Codeforces Round #675
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cf练习
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Codeforces Round #692 (Div. 2, based on Technocup 2021 Elimination Round 3)
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Codeforces Round #692 (Div. 2, based on Technocup 2021 Elimination Round 3)
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D. Not Quite Lee （gcd)
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Codeforces Round #356 (Div. 2)
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Codeforces Round #354 (Div. 2)
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Codeforces Round #373 (Div. 2)
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Codeforces Round #365 (Div. 2)
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AIM Tech Round 3 (Div. 2)
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Educational Codeforces Round 3
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Codeforces Round #362 (Div. 2)
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Codeforces Round #361 (Div. 2)
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Codeforces Round #368 (Div. 2)
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Codeforces Round #358 (Div. 2)
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Codeforces Round #357 (Div. 2)
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Codeforces Round #359 (Div. 2)
CF
252
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