杰拉斯的博客

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• 网格和布局
• CSS 优化和样式生成
• CSS 菜单工具
• CSS 按钮
• CSS 圆角
• CSS 框架
• CSS 表格
• CSS Sprites | CSS精灵
• CSS 文本和字体
• CSS 表单

网格和布局，CSS 优化，CSS 菜单工具，CSS 按钮，CSS 圆角，CSS 框架，CSS Sprites，CSS 排版以及 CSS 表单。

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Crixalis's Equipment

Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 32768/32768 K (Java/Others)
Total Submission(s): 1350 Accepted Submission(s): 543

Description

Crixalis - Sand King used to be a giant scorpion(蝎子) in the deserts of Kalimdor. Though he's a guardian of Lich King now, he keeps the living habit of a scorpion like living underground and digging holes.

Someday Crixalis decides to move to another nice place and build a new house for himself (Actually it's just a new hole). As he collected a lot of equipment, he needs to dig a hole beside his new house to store them. This hole has a volume of V units, and Crixalis has N equipment, each of them needs Ai units of space. When dragging his equipment into the hole, Crixalis finds that he needs more space to ensure everything is placed well. Actually, the ith equipment needs Bi units of space during the moving. More precisely Crixalis can not move equipment into the hole unless there are Bi units of space left. After it moved in, the volume of the hole will decrease by Ai. Crixalis wonders if he can move all his equipment into the new hole and he turns to you for help.

Input

The first line contains an integer T, indicating the number of test cases. Then follows T cases, each one contains N + 1 lines. The first line contains 2 integers: V, volume of a hole and N, number of equipment respectively. The next N lines contain N pairs of integers: Ai and Bi.
0

Output

For each case output "Yes" if Crixalis can move all his equipment into the new hole or else output "No".

Sample Input

2

20 3
10 20
3 10
1 7

10 2
1 10
2 11

Sample Output

Yes
No

Source

HDU3177

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问题描述

MARQUEE 标记中存在 "behavior" 值为 "alternate" 时，MARQUEE 标记内的处于普通流中块元素的交替往复移动效果消失。

造成的影响

在 Chrome Safari 中 MARQUEE 标记失效。

受影响的浏览器

Chrome Safari

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A+B for Input-Output Practice (I)

Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 65536/32768 K (Java/Others)
Total Submission(s): 13098 Accepted Submission(s): 6187

Description

Your task is to Calculate a + b.
Too easy?! Of course! I specially designed the problem for acm beginners.
You must have found that some problems have the same titles with this one, yes, all these problems were designed for the same aim.

Input

The input will consist of a series of pairs of integers a and b, separated by a space, one pair of integers per line.

Output

For each pair of input integers a and b you should output the sum of a and b in one line, and with one line of output for each line in input.

Sample Input

1 5
10 20

Sample Output

6

30

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如果你使用css sprites，那么在ie6下并不能发挥sprites的作用，它还是会每次再重新加载这个图片，解决方法为为ie6添加下面这条js：

<!--[if IE 6]>
    <script type="text/javascript">
        document.execCommand("BackgroundImageCache",false,true);
    </script>
<![endif]-->

转自：W3CPlus