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hello-algo/zh-hant/codes/kotlin/chapter_greedy/max_capacity.kt

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/**
* File: max_capacity.kt
* Created Time: 2024-01-25
* Author: curtishd (1023632660@qq.com)
*/
package chapter_greedy
import kotlin.math.max
import kotlin.math.min
/* 最大容量:貪婪 */
fun maxCapacity(ht: IntArray): Int {
// 初始化 i, j使其分列陣列兩端
var i = 0
var j = ht.size - 1
// 初始最大容量為 0
var res = 0
// 迴圈貪婪選擇,直至兩板相遇
while (i < j) {
// 更新最大容量
val cap = min(ht[i], ht[j]) * (j - i)
res = max(res, cap)
// 向內移動短板
if (ht[i] < ht[j]) {
i++
} else {
j--
}
}
return res
}
/* Driver Code */
fun main() {
val ht = intArrayOf(3, 8, 5, 2, 7, 7, 3, 4)
// 貪婪演算法
val res = maxCapacity(ht)
println("最大容量為 $res")
}