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## [ACM_HDU_3177]Crixalis's Equipment

### 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".

```2

20 3
10 20
3 10
1 7

10 2
1 10
2 11
```

```Yes
No
```

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。

Chrome Safari

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## [HDU_ACM_Steps]Chapter One Section One

### 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

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.

```
1 5
10 20
```

```6
30```

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## ie6 css sprites重复避免加载

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