11 Container With Most Water

You are given an integer array height of length n. There are n vertical lines drawn such that the two endpoints of the ith line are (i, 0) and (i, height[i]).

Find two lines that together with the x-axis form a container, such that the container contains the most water.

Return the maximum amount of water a container can store.

Notice that you may not slant the container.

Example 1:

Input: height = [1,8,6,2,5,4,8,3,7]
Output: 49
Explanation: The above vertical lines are represented by array [1,8,6,2,5,4,8,3,7].
In this case, the max area of water (blue section) the container can contain is 49.

Example 2:

Input: height = [1,1]
Output: 1

Constraints:

  • n == height.length
  • 2 <= n <= 105
  • 0 <= height[i] <= 104
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class Solution:
    def maxArea(self, height: List[int]) -> int:
        l, r = 0, len(height) - 1
        max_val = -1
        while l < r:
            max_val = max(max_val, min(height[l], height[r]) * (r-l))
            if height[l] < height[r]:
                l += 1
            else:
                r -= 1
        return max_val
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func maxArea(height []int) int {
    res := 0
    i, j := 0, len(height) - 1
    for i < j {
        res = max(res, min(height[i], height[j]) * (j - i))
        if height[i] < height[j] {
            i++
        } else {
            j--
        }
    }
    return res
}