CF1934B Yet Another Coin Problem 题解 题意 目前有5种硬币,面值分别为1,3,6,10,15。给你一个数字n,求出可以凑出n的最少的硬币的数量。 思路 这道题,大多数的人大概会想到动态规划的方法。 但是,我们应该有敢于创新的精神。于是我就想到了一个简单的数学方法。 首先我们先不讨论面值等于15元的硬币。 ...
题解:CF1934B Yet Another Coin Problem 思路 根据我们小学学的最小公倍数可知:1 与 3 的最小公倍数为 3,1 的乘数为 3;3 与 6 的最小公倍数为 6,3 的乘数为 2;6 与 10 的最小公倍数为 30,6 的乘数为 5;10 与 15 的最小公倍数为 30,10 的乘数为 3。 根据以上的推论,我们可以知道 3...
You have 5 different types of coins, each with a value equal to one of the first 5 triangular numbers: 1, 3, 6, 10, and 15. These coin types are available in abundance. Your goal is to find the minimum number of these coins required such that their total value sums up to exactly ...
1934B-YetAnotherCoinProblem.cpp 1935A-EntertainmentInMAC.cpp 1935B-InformaticsInMAC.cpp 1937A-ShuffleParty.cpp 1937B-BinaryPath.cpp 1941A-RudolfAndTheTicket.cpp 1941B-RudolfAnd121.cpp 1941C-RudolfAndTheUglyString.cpp 1942A-FarmerJohnsChallenge.cpp 1942B-BessieAndMEX.cpp 1944A-DestroyingBridges.cp...
1934B-YetAnotherCoinProblem.cpp 1935A-EntertainmentInMAC.cpp 1935B-InformaticsInMAC.cpp 1937A-ShuffleParty.cpp 1937B-BinaryPath.cpp 1941A-RudolfAndTheTicket.cpp 1941B-RudolfAnd121.cpp 1941C-RudolfAndTheUglyString.cpp 1942A-FarmerJohnsChallenge.cpp 1942B-BessieAndMEX.cpp 1944A-DestroyingBridges.cp...
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Test 1 第一部分:交际用语(共 5 小题;每小题 3 分,满分 15 分) 此部分共有 5 个未完成的对话,针对每个对话中未完成的部分有 4 个选项,请从 A、B、C、D 四个选项中选出可 以填入空白处的最佳选项,并用铅笔将答案题卡上的相应字母涂黑。示例[A] [B] [C] [D] 1-5 BACBB 1. —How are yo...
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He put a coin into the insertion slot. 434 Q 我们就下次的选举打个赌吧。 wǒ men jiù xià cì de xuǎn jǔ dǎ gè dǔ ba。 Study These Flashcards A Let’s make a bet on the next election. 435 Q 她已明确阐述了自己的观点. tā yǐ míng què chǎn shù le zì jǐ ...
There are so many things to think about when the location is a problem. 29. ife and uburbs 城里生活与郊区生活 Life in the city is very different from life in the villages and on the farms. People in large cities are much more careful to respect the privacy of the others. Sometimes...