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climbing-stairs
You are climbing a stair case. It takes n steps to reach to the top. Each time you can either climb 1 or 2 steps. In how many distinct ways can you cl ...
分类:其他好文   时间:2017-03-07 08:40:20    阅读次数:155
Codeforces Round #394 (Div. 2)
A - Dasha and Stairs(water) 题意:能否找到一个区间内奇数偶数个数分别为a和b。被hack了一个0 0的数据点orz.... 1 #include <bits/stdc++.h> 2 using namespace std; 3 const int INF = 0x3f3f ...
分类:其他好文   时间:2017-02-02 12:06:28    阅读次数:260
Codeforces Round #394 div2
A. Dasha and Stairs(数学) http://codeforces.com/problemset/problem/761/A 题意:已知有a个偶数b个奇数,判断这些数能不能组成连续正整数数列。 算法:直接判断abs(a-b)≦1即可。注意a和b同时为0的情况。 代码: B. Dash ...
分类:其他好文   时间:2017-02-02 02:33:18    阅读次数:288
(Incomplete) Codeforces 394 (Div 2 only)
A. Dasha and Stairs 保证a,b不同时为0,而且a 和 b 的绝对值不超过1即可。(心态崩了的我强行写出一个暴力,枚举了所有的情况。) code: B. Dasha and friends 对于两个跑道,分别计算出每个片段的长度。固定第一个跑道的起点,枚举第二个跑道的起点,看两个跑 ...
分类:其他好文   时间:2017-02-01 10:32:19    阅读次数:174
70. 爬梯子问题(斐波那契数列)Climbing Stairs
You are climbing a stair case. It takes n steps to reach to the top.Each time you can either climb 1 or 2 steps. In how many distinct ways can you cli... ...
分类:其他好文   时间:2017-01-14 12:19:42    阅读次数:164
70. Climbing Stairs Add to List
You are climbing a stair case. It takes n steps to reach to the top. Each time you can either climb 1 or 2 steps. In how many distinct ways can you cl ...
分类:其他好文   时间:2016-12-30 20:38:47    阅读次数:176
LintCode 111 Climbing Stairs
这道题参考了这个网址: http://blog.csdn.net/u012490475/article/details/48845683 /* 首先考虑边界情况,当有1层时,有一种方法。 然后再看2层时,有1+1、和2+0,两种方法。 再看3层时,首先有两种选择:走一步或者走两步。 如果走两步,那后 ...
分类:其他好文   时间:2016-12-20 07:17:20    阅读次数:136
HDU 4315:Climbing the Hill(阶梯博弈)
http://acm.hdu.edu.cn/showproblem.php?pid=4315 题意:有n个人要往坐标为0的地方移动,他们分别有一个位置a[i],其中最靠近0的第k个人是king,移动的时候在后面的人不能越过前面的人,先把king送到0的人胜。 思路:阶梯博弈。把n个人两两配对,形成一 ...
分类:其他好文   时间:2016-12-18 18:02:54    阅读次数:184
POJ 3666 Making the Grade DP
Description A straight dirt road connects two fields on FJ's farm, but it changes elevation more than FJ would like. His cows do not mind climbing up ...
分类:其他好文   时间:2016-11-28 14:40:00    阅读次数:281
Leetcode-70 Climbing Stairs
#70. Climbing Stairs You are climbing a stair case. It takes n steps to reach to the top. Each time you can either climb 1 or 2 steps. In how many dis ...
分类:其他好文   时间:2016-11-20 19:08:27    阅读次数:198
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