HDU 5914 Triangle

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HDU 5914 Triangle 数学找规律

Triangle 题目连接: http://acm.hdu.edu.cn/showproblem.php?pid=5914 Description Mr. Frog has n sticks, whose lengths are 1,2, 3⋯n respectively. Wallice is a bad man, so he does not want Mr. Frog to form a triangle with three of the sticks here. He decides…

HDU 5914 Triangle 【构造】 (2016中国大学生程序设计竞赛(长春))

Triangle Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 65536/65536 K (Java/Others)Total Submission(s): 0 Accepted Submission(s): 0 Problem Description Mr. Frog has n sticks, whose lengths are 1,2, 3⋯n respectively. Wallice is a bad man,…

HDU 5914 Triangle（打表——斐波那契数的应用）

题目链接: http://acm.hdu.edu.cn/showproblem.php?pid=5914 Problem Description Mr. Frog has n sticks, whose lengths are 1,2, 3⋯n respectively. Wallice is a bad man, so he does not want Mr. Frog to form a triangle with three of the sticks here. He decides t…

HDU 5914 Triangle 斐波纳契数列 && 二进制切金条

HDU5914 题目链接题意:有n根长度从1到n的木棒,问最少拿走多少根,使得剩下的木棒无论怎样都不能构成三角形. 题解:斐波纳契数列,a+b=c恰好不能构成三角形,暴力就好,推一下也可以. #include <cstdio> #include <iostream> #include <cstring> using namespace std; int main() { ; scanf("%d",&t); ]; memset(a,,size…

题目来源:2016 CCPC 长春站题意:青蛙先生想用n个长度为1~n的木棍来组成一些三角形,但是有一个坏蛋就想破坏青蛙先生的好事,请问在这n个木棍中至少偷出来几个木棍使得青蛙先生无法再用剩下的一些木棍组成三角形思路:假设 p[i] = x 代表有i个木棍至少偷走x个剩下的木棍就无法组成三角形可以先手写出 i 较小的答案 p[1] = 0 p[2] = 0 p[3] = 0 p[4] = 1 p[5] = 1 p[6] = 2 p[7] = 3 p[8] = 3 然后会发现一个比较有趣的问…

hdu 4324 Triangle LOVE

题目连接 http://acm.hdu.edu.cn/showproblem.php?pid=4324 Triangle LOVE Description Recently, scientists find that there is love between any of two people. For example, between A and B, if A don’t love B, then B must love A, vice versa. And there is no pos…

HDU 4324 Triangle LOVE 拓扑排序

Problem Description Recently, scientists find that there is love between any of two people. For example, between A and B, if A don't love B, then B must love A, vice versa. And there is no possibility that two people love each other, what a crazy wor…