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1175 区间中第K大的数 基准时间限制：1 秒 空间限制：131072 KB 分值: 160 难度：6级算法题 一个长度为N的整数序列，编号0 - N - 1。进行Q次查询，查询编号i至j的所有数中，第K大的数是多少。 例如: 1 7 6 3 1。i = 1, j = 3，k = 2，对应的数为7 阅读全文
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线性筛法： 1 for(int i = 2; i < MAXPRIME; i++) 2 { 3 if(!visit[i]) prime[tot++] = i; 4 for(int j = 0; j < tot; j++) 5 { 6 if(i * prime[j] >= MAXPRIME) brea 阅读全文
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2071. Juice Cocktails Time limit: 1.0 secondMemory limit: 64 MB Once n Denchiks come to the bar and each orders a juice cocktail. It could be from 1 t 阅读全文
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2073. Log Files Time limit: 1.0 secondMemory limit: 64 MB Nikolay has decided to become the best programmer in the world! Now he regularly takes part 阅读全文
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2070. Interesting Numbers Time limit: 2.0 secondMemory limit: 64 MB Nikolay and Asya investigate integers together in their spare time. Nikolay thinks 阅读全文
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2069. Hard Rock Time limit: 1.0 secondMemory limit: 64 MB Ilya is a frontman of the most famous rock band on Earth. Band decided to make the most awes 阅读全文
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2068. Game of Nuts Time limit: 1.0 secondMemory limit: 64 MB The war for Westeros is still in process, manpower and supplies are coming to an end and 阅读全文
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2067. Friends and Berries Time limit: 2.0 secondMemory limit: 64 MB There is a group of n children. According to a proverb, every man to his own taste 阅读全文
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2066. Simple Expression Time limit: 1.0 secondMemory limit: 64 MB You probably know that Alex is a very serious mathematician and he likes to solve se 阅读全文
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2065. Different Sums Time limit: 1.0 secondMemory limit: 64 MB Alex is a very serious mathematician and he likes to solve serious problems. For exampl 阅读全文
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2064. Caterpillars Time limit: 3.0 secondMemory limit: 64 MB Young gardener didn’t visit his garden for a long time, and now it’s not very pleasant th 阅读全文
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2063. Black and White Time limit: 1.0 secondMemory limit: 64 MB Let’s play a game. You are given a row of n balls, each ball is either black or white. 阅读全文
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2062. Ambitious Experiment Time limit: 3.0 secondMemory limit: 128 MB During several decades, scientists from planet Nibiru are working to create an e 阅读全文