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uhauha2929
LeetCode
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S492.java
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package S481_500;
import java.util.Arrays;
/**
* 作为一位web开发者, 懂得怎样去规划一个页面的尺寸是很重要的。 现给定一个具体的矩形页面面积,你的任务是设计一个长度为 L 和宽度为 W 且满足以下要求的矩形的页面。要求:
* 1. 你设计的矩形页面必须等于给定的目标面积。
* 2. 宽度 W 不应大于长度 L,换言之,要求 L >= W 。
* 3. 长度 L 和宽度 W 之间的差距应当尽可能小。
* 你需要按顺序输出你设计的页面的长度 L 和宽度 W。
* 示例:
* 输入: 4
* 输出: [2, 2]
* 解释: 目标面积是 4, 所有可能的构造方案有 [1,4], [2,2], [4,1]。
* 但是根据要求2,[1,4] 不符合要求; 根据要求3,[2,2] 比 [4,1] 更能符合要求. 所以输出长度 L 为 2, 宽度 W 为 2。
* 说明:
* 给定的面积不大于 10,000,000 且为正整数。
* 你设计的页面的长度和宽度必须都是正整数。
*/
public class S492 {
public int[] constructRectangle(int area) {
double len = Math.sqrt(area);
int l = (int) Math.ceil(len);
int w = (int) Math.floor(len);
while (true) {
if (l * w < area)
l++;
else if (l * w > area)
w--;
else
return new int[]{l, w};
}
}
public int[] constructRectangle2(int area) {
int l = (int) Math.sqrt(area);
while (area % l != 0) l--;
return new int[]{area / l, l};
}
public static void main(String[] args) {
System.out.println(Arrays.toString(new S492()
.constructRectangle2(18)));
}
}
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