http://acm.hdu.edu.cn/showproblem.php?pid=6198 F0=0,F1=1的斐波那契数列. 给定K,问最小的不能被k个数组合而成的数是什么. 赛后才突然醒悟,只要间隔着取k+1个数,显然根据斐波那契数列规律是不存在把其中两个数相加的结果又出现在数列中的情况(有特别的看下面),不就不会被组合出来了么? 这里有1 3 8...这种和1 2 5 13...两种,但因为后者任意一位的1,2可以被转化为3,这是唯一一种特例,所以我们采用前者.构造矩阵快速幂一下. #i…

Number Sequence Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 65536/32768 K (Java/Others)Total Submission(s): 187893    Accepted Submission(s): 46820 Problem Description A number sequence is defined as follows: f(1) = 1, f(2) = 1, f(n) = (A…

python实现斐波那契数列的三种方法 """ 斐波那契数列 0,1,1,2,3,5,8,13,21,... """ # 方法一:while循环 def fibonaccise(number): """ 求数字number以内的斐波那契数列 """ a = 0 b = 1 list_number = [a] while b < number: list_number.append(…

网址:https://leetcode.com/problems/fibonacci-number/ 原始的斐波那契数列 运用自底向上的动态规划最佳! 可以定义vector数组,但是占用较多内存空间 class Solution { public: int fib(int N) { int sum; ) ; ) ; vector<,); t[] = ; t[] = ; ;i<=N;i++) { t[i] = t[i-] + t[i-]; } return t[N]; } }; 直接定义三个变量…

int最大范围(有符号情况下,从第0项0开始)能取到第46项1836311903,47项溢出 时间限制:1秒 空间限制:32768K 热度指数:473928 题目描述 大家都知道斐波那契数列,现在要求输入一个整数n,请你输出斐波那契数列的第n项(从0开始,第0项为0).n<=39 class Solution { public: int Fibonacci(int n) { ) ; ,b = ; ; i<=n;i++) { int tmp = b; b += a; a = tmp; } ret…

题目链接: http://acm.hdu.edu.cn/showproblem.php?pid=1316 Recall the definition of the Fibonacci numbers: f1 := 1 f2 := 2 fn := fn-1 + fn-2 (n >= 3) Given two numbers a and b, calculate how many Fibonacci numbers are in the range [a, b].   Input The input…

Triangle Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 65536/65536 K (Java/Others)Total Submission(s): 127    Accepted Submission(s): 89 Problem Description Mr. Frog has n sticks, whose lengths are 1,2, 3⋯n respectively. Wallice is a bad ma…

5152. Brute-force Algorithm EXTREME Problem code: BFALG Please click here to download a PDF version of the contest problems. The problem is problem B in the PDF. But the data limits is slightly modified: 1≤P≤1000000 in the original description, but i…

题目链接: http://acm.hdu.edu.cn/showproblem.php?pid=1715 大菲波数 Time Limit: 1000/1000 MS (Java/Others)    Memory Limit: 32768/32768 K (Java/Others)Total Submission(s): 22523    Accepted Submission(s): 8096 Problem Description Fibonacci数列,定义如下:f(1)=f(2)=1f(…

题目链接http://acm.hdu.edu.cn/showproblem.php?pid=4549: 题目是中文的很容易理解吧.可一开始我把题目看错了,这毛病哈哈. 一开始我看错题时,就用了一个快速幂来解,不用说肯定wa,看题目的通过率也不高,我想会不会有啥坑啊.然而我就是那大坑,哈哈. 不说了,直接说题吧,先讨论k=1,2,3;时的解.这应该会解吧,不多说了: 从第四项开始f(4)=a^1+b^2;f(5)=a^2+b^3;f(6)=a^3+b^5......; 看出来了吧,a上的指数成斐波…