Find the container with the maximum volume of water.

Focus on understanding the problem of maximizing the volume of water between two vertical lines on a graph, where the lines represent the heights of the container's sides. Discuss the constraints and how the width between the lines affects the volume calculation. Consider using a two-pointer approach to efficiently find the maximum volume, explaining the logic behind moving the pointers based on height comparisons. Be prepared to analyze the time complexity of your solution and discuss potential edge cases, such as when all heights are the same or when there are only two lines.