Given a triangle, find the minimum path sum from top to bottom. Each step you may move to adjacent numbers on the row below.For example, given the fol...
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其他好文 时间:
2014-08-15 23:47:19
阅读次数:
302
本题需要使用选择矩阵的程序求解,这个和Leetcode上的一个程序是一样道理的。如果使用额外空间,那么是很容易做到的,这里不使用额外空间,直接使用到位操作,空间效率是O(1),这是个非常漂亮的到位旋转程序。
题意还是很重要,这次看错了一句话,就WA了一次:
The maximum amount of cells which contains two equal numbers after ov...
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其他好文 时间:
2014-08-15 22:35:29
阅读次数:
288
普通的求区间连续和的问题,一开始因为是区间移动,但是怕UVA数据太严,直接打表,后来发现自己的担心是多余的。
14044972
1210
Sum of Consecutive Prime Numbers
Accepted
C++
0.049
2014-08-15 10:30:11
打表的话效率可能不是很高.
AC代码:...
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其他好文 时间:
2014-08-15 19:43:29
阅读次数:
182
Colossal Fibonacci Numbers!
The i'th Fibonacci number f (i) is recursively defined in the following way:
f (0) = 0 and f (1) = 1f (i+2) = f (i+1) + f (i) for every i ≥ 0
Your task is to comput...
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其他好文 时间:
2014-08-15 17:55:09
阅读次数:
241
书上给出了最短摘要的描述即算法,简单来说就是:
扫描过程始终保持一个[pBegin,pEnd]的range,初始化确保[pBegin,pEnd]的range里包含所有关键字 。然后每次迭代,尝试调整pBegin和pEnd:
1.pBegin递增,直到range无法包含所有关键字
2.pEnd递增,直到range重新包含所有关键字
计算新的range,与旧的range相比,看是否缩短了...
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其他好文 时间:
2014-08-15 14:39:38
阅读次数:
306
net.ipv4.tcp_fin_timeout=2net.ipv4.tcp_tw_reuse=1net.ipv4.tcp_tw_recycle=1net.ipv4.tcp_syncookies=1net.ipv4.tcp_keepalive_time=600net.ipv4.ip_local_port_range=400065000net.ipv4.tcp_max_syn_backlog=16834net.ipv4.tcp_max_tw_buckets=36000net.ipv4.route.gc_time..
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系统相关 时间:
2014-08-15 13:00:59
阅读次数:
284
Description
Stable Grid
Consider a grid of size n x n where each cell contains a number. Let's call a grid stable if we canrearrange the numbers of each row so that every col...
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其他好文 时间:
2014-08-15 10:42:58
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190
When designing your application to support a wide range of screen sizes, you can reuse your fragments in different layout configurations to optimize the user experience based on the available screen space.
For example, on a handset device it might be appr...
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移动开发 时间:
2014-08-15 01:33:26
阅读次数:
344
Given a triangle, find the minimum path sum from top to bottom. Each step you may move to adjacent numbers on the row below.For example, given the fol...
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其他好文 时间:
2014-08-14 23:26:46
阅读次数:
219
Given a m x n grid filled with non-negative numbers, find a path from top left to bottom right which minimizes the sum of all numbers along its path....
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其他好文 时间:
2014-08-14 20:50:59
阅读次数:
192