一开始的暴力解

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#include <vector>
#include <algorithm>
using namespace std;

class Solution {
public:
int maxArea(vector<int>& height) {
int n = height.size();
int max_Area = 0;
for (int left = 0; left < n; ++left) {
for (int right = left + 1; right < n; ++right) {
int area = min(height[left], height[right]) * (right - left);
max_Area = max(max_Area, area);
}
}
return max_Area;
}
};

超时了

标准解答双指针

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#include <vector>
#include <algorithm>
using namespace std;

class Solution {
public:
int maxArea(vector<int>& height) {
int left = 0, right = (int)height.size() - 1;
int ans = 0;
while (left < right) {
int h = min(height[left], height[right]);
ans = max(ans, h * (right - left));
if (height[left] < height[right]) {
++left;
} else {
--right;
}
}
return ans;
}
};