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这是一个很有意思的问题，求解最大容积问题，值得动脑筋想一想。原题如下：Given n non-negative integers representing an elevation map where the width of each bar is 1, compute how much water it is able to trap after raining.For example, Given [0,1,0,2,1,0,1,3,2,1,2,1], return 6.The above elevation map is represented by array [0,1,0,2,1,0,1,3,2,1,2,1]. In this case, 6 units of rain water (blue section...
题目来源： https://leetcode.com/problems/trapping-rain-water/ 题意分析： 输入一组数组，代表一个宽度为1的高度地图。问，这个地图在雨后可以收集多少水。例如，输入一个数组[0,1,0,2,1,0,1,3,2,1,2,1]，返回的是6.如图所示： 题目思路： 这道题目虽然说是hard难度的题目，但是其实不是很难。不难发现，水都是从最高那个数起和第二高数之间。那么这题可以分成两部。①找到数组的最大值。②计算最大值左边和右边分别可...
题目：接雨水难度：hard题目内容：Given n non-negative integers representing an elevation map where the width of each bar is 1, compute how much water it is able to trap after raining.The above elevation map is represented by array [0,1,0,2,1,0,1,3,2,1,2,1]. In this case, 6 units of rain water (blue section) are being trapped. Thanks Marcos for contributing this image!Example:Input: [0,1,0,2,1,0,1,3...
Given n non-negative integers representing an elevation map where the width of each bar is 1, compute how much water it is able to trap after raining. For example, Given [0,1,0,2,1,0,1,3,2,1,2,1], return 6. The above elevation map is represented by array [0,1,0,2,1,0,1,3,2,1,2,1]. In this case, 6 units of rain water (blue section) are being trapped. Thanks Marcos for contributing this image! 从两...
题目在这里: https://leetcode.com/problems/trapping-rain-water/[标签] Array; Stack; Two Pointers这个题我感觉很难，我自己是完全不会。下面贴的是别人想到的好方法，自己适当做了些简单调整。我觉得，这个解法非常巧妙的使用了双向的 two pointers。用到的变量有左右两个指针，一个在最左边，一个在最右边，然后两个一起往中间走。在走的时候维护两个变量，left barrier 和 right barrier，即左边的挡板和右边的挡板。用例子说...
Given n non-negative integers representing an elevation map where the width of each bar is 1, compute how much water it is able to trap after raining.The above elevation map is represented by array [0,1,0,2,1,0,1,3,2,1,2,1]. In this case, 6 units of rain water (blue section) are being trapped.Example:Input: [0,1,0,2,1,0,1,3,2,1,2,1] Output: 6这个题目思路类似于木桶原理, 中间能收集到的水, 取决于左右...