Given n non-negative integers representing an elevation map where the width of each bar is 1, compute how much water it is able to trap after raining....
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移动开发 时间:
2014-09-01 21:01:33
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Givennnon-negative integers representing an elevation map where the width of each bar is 1, compute how much water it is able to trap after raining. 1...
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2014-08-10 01:34:09
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375
原文:https://www.technovelty.org//linux/bash-arithmetic-evaluation-and-errexit-trap.html
在 "traps for new players" 一章:
count=0
things="0 1 0 0 1"
for i in $things;
do
if [ $i == "1" ]; then
...
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其他好文 时间:
2014-08-08 21:33:46
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258
题目:Given n non-negative integers representing an elevation map where the width of each bar is 1, compute how much water it is able to trap after rain....
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移动开发 时间:
2014-07-30 09:47:13
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272
系统调用属于一种软中断机制(内中断陷阱),它有操作系统提供的功能入口(sys_call)以及CPU提供的硬件支持(int 3 trap)共同完成。我们必须要明白,Hook技术是一个相对较宽的话题,因为操作系统从ring3到ring0是分层次的结构,在每一个层次上都可以进行相应的Hook,它们使用的技...
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系统相关 时间:
2014-07-22 00:26:34
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726
1、中断处理程序与其他内核函数真正的区别在于,中断处理程序是被内核调用来相应中断的,而它们运行于中断上下文(原子上下文)中,在该上下文中执行的代码不可阻塞。中断就是由硬件打断操作系统。
2、异常与中断不同,它在产生时必须考虑与处理器时钟同步。异常被称为同步中断,例如:除0、缺页异常、陷入内核(trap)引起系统调用处理程序异常。
3、不同的设备对应的中断不同,而每个中断都通过一个唯一的数字(中...
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系统相关 时间:
2014-07-22 00:08:34
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326
class Solution {public: int trap(int A[], int n) { if (n peaks; vector peaks_tmp; int last_idx = 0; bool increasing = ...
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移动开发 时间:
2014-07-21 09:04:11
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259
Givennnon-negative integers representing an elevation map where the width of each bar is 1, compute how much water it is able to trap after raining.Fo...
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移动开发 时间:
2014-07-18 11:38:45
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228
Givennnon-negative integers representing an elevation map where the width of each bar is 1, compute how much water it is able to trap after raining.Fo...
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移动开发 时间:
2014-07-10 15:00:57
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267
题目
Given n non-negative integers representing an elevation map where the width of each bar is 1, compute how much water it is able to trap after raining.
For example,
Given [0,1,0,2,1,0,...
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移动开发 时间:
2014-06-27 23:20:39
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349