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=====CF Heidi and Library (easy)===== ====题意==== ====题解==== =====CF Heidi and Library (medium)===== ====题意==== ====题解==== =====CF Marmots (easy)===== ====题意==== ====题解==== =====CF Marmots (medium)===== ====题意==== ====题解==== =====CF Fake News (medium)===== ====题意==== ====题解==== =====CF Fake News (hard)===== ====题意==== ====题解==== =====CF Send the Fool Further! (medium)===== ====题意==== ====题解==== =====CF Maximal GCD===== ====题意==== ====题解==== =====CF Magazine Ad===== ====题意==== ====题解==== =====CF Roma and Poker===== ====题意==== ====题解==== =====CF Coprime Subsequences===== ====题意==== ====题解==== =====CF Periodic RMQ Problem===== ====题意==== ====题解==== =====CF Ice cream coloring===== ====题意==== ====题解==== =====CF Array Division===== ====题意==== ====题解====