hello-algo/zh-hant/codes/javascript/chapter_greedy/max_capacity.js

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/**
* File: max_capacity.js
* Created Time: 2023-09-02
* Author: Justin (xiefahit@gmail.com)
*/
/* 最大容量:貪婪 */
function maxCapacity(ht) {
// 初始化 i, j使其分列陣列兩端
let i = 0,
j = ht.length - 1;
// 初始最大容量為 0
let res = 0;
// 迴圈貪婪選擇,直至兩板相遇
while (i < j) {
// 更新最大容量
const cap = Math.min(ht[i], ht[j]) * (j - i);
res = Math.max(res, cap);
// 向內移動短板
if (ht[i] < ht[j]) {
i += 1;
} else {
j -= 1;
}
}
return res;
}
/* Driver Code */
const ht = [3, 8, 5, 2, 7, 7, 3, 4];
// 貪婪演算法
const res = maxCapacity(ht);
console.log(`最大容量為 ${res}`);