2017年2月15日
二分乘法
摘要： LL mult(LL a, LL k, LL m){ LL res = 0; while(k){ if(k & 1LL) res = (res + a) % m; k >>= 1; a = (a << 1) % m; } return res; } 阅读全文
posted @ 2017-02-15 22:28 Heilce 阅读(284) 评论(0) 推荐(0)
Lucky7（容斥原理）
摘要： Problem Description When ?? was born, seven crows flew in and stopped beside him. In its childhood, ?? had been unfortunately fall into the sea. While 阅读全文
posted @ 2017-02-15 21:51 Heilce 阅读(342) 评论(0) 推荐(0)
E. Devu and Flowers
摘要： E. Devu and Flowers time limit per test 4 seconds memory limit per test 256 megabytes input standard input output standard output Devu wants to decora 阅读全文
posted @ 2017-02-15 17:55 Heilce 阅读(445) 评论(0) 推荐(0)
最大公约数最小公倍数
摘要： 其中p为素数 待续 阅读全文
posted @ 2017-02-15 10:31 Heilce 阅读(158) 评论(0) 推荐(0)