Problem Description A number sequence is defined as follows: f(1) = 1, f(2) = 1, f(n) = (A * f(n - 1) + B * f(n - 2)) mod 7. Given A, B, and n, you are to calculate the value of f(n). Input The input consists of multiple test cases. Each test case co
HDU 5783 Divide the Sequence(数列划分) Time Limit: 5000/2500 MS (Java/Others) Memory Limit: 65536/65536 K (Java/Others) Problem Description - 题目描述 Alice has a sequence A, She wants to split A into as much as possible continuous subsequences, satisfy
HDU 3397 Sequence operation 题目链接 题意:给定一个01序列,有5种操作 0 a b [a.b]区间置为0 1 a b [a,b]区间置为1 2 a b [a,b]区间0变成1,1变成0 3 a b 查询[a,b]区间1的个数 4 a b 查询[a,b]区间连续1最长的长度 思路:线段树线段合并.须要两个延迟标记一个置为01,一个翻转,然后因为4操作,须要记录左边最长0.1.右边最长0.1,区间最长0.1,然后区间合并去搞就可以 代码: #include <cstdi
Sequence Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 32768/32768 K (Java/Others) Total Submission(s): 1666 Accepted Submission(s): 614 Problem Description There is a sequence X (i.e. x[1], x[2], ..., x[n]). We define increasing subsequ
树状数组: 维护每一个数前面比它小的数的个数,和这个数后面比他大的数的个数 再枚举每个位置组合一下 Sequence II Time Limit: 5000/2500 MS (Java/Others) Memory Limit: 32768/32768 K (Java/Others) Total Submission(s): 121 Accepted Submission(s): 58 Problem Description Long long ago, there is a seq
Nice Sequence Time Limit: 12000/6000MS (Java/Others)Memory Limit: 128000/64000KB (Java/Others) Problem Description Let us consider the sequence a1, a2,..., an of non-negative integer numbers. Denote as ci,j the number of occurrences of the number i a
题目链接:http://acm.hdu.edu.cn/showproblem.php?pid=5014 Number Sequence Problem Description There is a special number sequence which has n+1 integers. For each number in sequence, we have two rules: ● ai ∈ [0,n] ● ai ≠ aj( i ≠ j ) For sequence a and sequ
RXD, tree and sequence Time Limit: 6000/3000 MS (Java/Others) Memory Limit: 524288/524288 K (Java/Others)Total Submission(s): 234 Accepted Submission(s): 82 Problem Description RXD has a rooted tree T with size n, the root ID is 1, with the dep