摘要：
1201 整数划分 基准时间限制：1 秒 空间限制：131072 KB 分值: 80 难度：5级算法题 将N分为若干个不同整数的和，有多少种不同的划分方式，例如：n = 6，{6} {1,5} {2,4} {1,2,3}，共4种。由于数据较大，输出Mod 10^9 + 7的结果即可。 Input 输 阅读全文
摘要：
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
摘要：
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
摘要：
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
摘要：
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
摘要：
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
摘要：
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
摘要：
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
摘要：
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
摘要：
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