转载请注明出处: http://www.cnblogs.com/fraud/ ——by fraud Vasily the Bear and Sequence Vasily the bear has got a sequence of positive integers a1, a2, ..., an. Vasily the Bear wants to write out several numbers on a piece of paper so that the beauty…
C. Vasily the Bear and Sequence time limit per test 1 second memory limit per test 256 megabytes input standard input output standard output Vasily the bear has got a sequence of positive integers a1, a2, ..., *a**n*. Vasily the Bear wants to write o…
转载请注明出处: http://www.cnblogs.com/fraud/ ——by fraud Vasily the Bear and Beautiful Strings Vasily the Bear loves beautiful strings. String s is beautiful if it meets the following criteria: String s only consists of characters 0 and 1, at that…
题目链接:http://codeforces.com/problemset/problem/284/C 题目意思:给出3种操作:t = 1:在前 a 个数中每个数都加上x: t= 2:在数组末尾增加一个数k,数组长度相应增加1: t = 3:删除数组最后一个数,数组长度减少1.对于n次操作,都给出整个数组所有元素的平均值. 一开始看见题目意思那么容易懂,于是以为很容易做,错足14次,15次终于成功了.先是TLE(对操作2直接暴力循环加),后在Test 10 wa wa wa~~~,说误差超了,全…
1.题目描述: 1175. Strange Sequence Time limit: 1.0 secondMemory limit: 2 MB You have been asked to discover some important properties of one strange sequences set. Each sequence of the parameterized set is given by a recurrent formula: Xn+1 = F(Xn-1, Xn)…