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Leetcode | Container With Most Water

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.

暴力超时。网上的算法,左右两指针。。。

 1 class Solution { 2 public: 3     int maxArea(vector<int> &height) { 4         int i = 0, j = height.size() - 1, water, max = 0; 5         while (i < j) { 6             if (height[i] < height[j]) { 7                 water = (j - i) * height[i]; 8                 i++; 9             } else {10                 water = (j - i) * height[j];11                 j--;12             }13             if (water > max) max = water;14         }15         return max;16     }17 };