[leetcode]Container With Most Water

标签：

题目：

Given n non-negative integers a1, a2, ..., an, where each represents a point at coordinate (i, ai). n vertical lines are drawn such that the two endpoints of line i is at (i, ai) and (i, 0). Find two lines, which together with x-axis forms a container, such that the container contains the most water.

Note: You may not slant the container.

解答：

1、穷举法，两重循环，时间复杂度O(n^2)，提交会出现超时错误；

2、两指针中间靠，是一种贪心策略，因为中间靠的过程中，线间隔变小，所以只有如下情况才有可能取更大值：板的高度变的更高。

代码如下：

public int maxArea(int[] height) {
        int max = 0;
        int left = 0;
        int right = height.length - 1;
        int curArea = 0;
        while (left < right) {
            curArea = (right - left) * (height[right] < height[left] ? height[right--] : height[left++]);
            if (curArea > max)
                max = curArea;
        }
        return max;
    }

[leetcode]Container With Most Water

标签：

原文地址：http://www.cnblogs.com/shizhh/p/4707280.html