hello-algo/codes/java/chapter_greedy/max_capacity.java

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/**
* File: max_capacity.java
* Created Time: 2023-07-21
* Author: Krahets (krahets@163.com)
*/
package chapter_greedy;
public class max_capacity {
/* 最大容量:贪心 */
static int maxCapacity(int[] ht) {
// 初始化 i, j使其分列数组两端
int i = 0, j = ht.length - 1;
// 初始最大容量为 0
int res = 0;
// 循环贪心选择,直至两板相遇
while (i < j) {
// 更新最大容量
int cap = Math.min(ht[i], ht[j]) * (j - i);
res = Math.max(res, cap);
// 向内移动短板
if (ht[i] < ht[j]) {
i++;
} else {
j--;
}
}
return res;
}
public static void main(String[] args) {
int[] ht = { 3, 8, 5, 2, 7, 7, 3, 4 };
// 贪心算法
int res = maxCapacity(ht);
System.out.println("最大容量为 " + res);
}
}