3143. 正方形中的最多点数

3143. 正方形中的最多点数

题目链接：3143. 正方形中的最多点数

代码如下：

//参考链接:https://leetcode.cn/problems/maximum-points-inside-the-square/solutions/2775310/er-fen-bian-chang-tong-shi-ji-lu-da-an-z-92w5
class Solution
{
public:
	int maxPointsInsideSquare(vector<vector<int>>& points, string s)
	{
		int res = 0;
		function<bool(int)> check = [&](int size)->bool
			{
				int vis = 0;
				for (int i = 0; i < points.size(); i++)
				{
					//判断点是否在正方形中
					if (abs(points[i][0]) <= size && abs(points[i][1]) <= size)
					{
						char c = s[i] - 'a';
						if (vis >> c & 1) { return false; }
						vis |= 1 << c;// 把 c 加入集合
					}
				}
				res = __builtin_popcount(vis);
				return true;
			};
		int left = -1, right = 1'000'000'001;
		while (left + 1 < right)
		{
			int mid = (left + right) / 2;
			(check(mid) ? left : right) = mid;
		}
		return res;
	}
};