You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
|
|
|
|
/**
|
|
|
|
|
* 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:贪心 */
|
|
|
|
|
fun maxCapacity(ht: IntArray): Int {
|
|
|
|
|
// 初始化 i, j,使其分列数组两端
|
|
|
|
|
var i = 0
|
|
|
|
|
var j = ht.size - 1
|
|
|
|
|
// 初始最大容量为 0
|
|
|
|
|
var res = 0
|
|
|
|
|
// 循环贪心选择,直至两板相遇
|
|
|
|
|
while (i < j) {
|
|
|
|
|
// 更新最大容量
|
|
|
|
|
val cap = min(ht[i], ht[j]) * (j - i)
|
|
|
|
|
res = max(res, cap)
|
|
|
|
|
// 向内移动短板
|
|
|
|
|
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)
|
|
|
|
|
|
|
|
|
|
// 贪心算法
|
|
|
|
|
val res = maxCapacity(ht)
|
|
|
|
|
println("最大容量为 $res")
|
|
|
|
|
}
|