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AhkunTa
Arithmetic
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LeetCode
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492_javascript.js
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// 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。
/**
* @param {number} area
* @return {number[]}
*/
var constructRectangle = function(area) {
for(let L=1; L<=area; L++){
let W = area / L
if(area % L == 0 && area / L <= L){
// L 从1开始 及L从最小开始
// 直接return 无需在判断两者差距尽可能小
return [L,W]
}
}
};
// 简单一点直接开平方
var constructRectangle = function(area) {
let w = Math.floor(Math.sqrt(area));
while (area % w !== 0) {
--w;
}
return [area /w , w];
};
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