mirror of
https://github.com/krahets/hello-algo.git
synced 2024-12-27 03:36:28 +08:00
41 lines
917 B
Kotlin
41 lines
917 B
Kotlin
|
/**
|
|||
|
* 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].toDouble(), ht[j].toDouble()) * (j - i)).toInt()
|
|||
|
res = max(res.toDouble(), cap.toDouble()).toInt()
|
|||
|
// 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")
|
|||
|
}
|