add: 220113

2201/220113.cpp

@@ -0,0 +1,24 @@
+#include <vector>
+#include <algorithm>
+#include <iostream>
+
+class Solution {
+public:
+	static int findMinArrowShots(std::vector<std::vector<int>>& points) {
+		std::sort(points.begin(), points.end(), [](const std::vector<int>& l, const std::vector<int>& r) { return l[1] < r[1]; });
+		int ret = 0, n = points.size();
+		for (int i = 0, r; i < n;) {
+			++ret;
+			r = points[i][1];
+			while (i < n && points[i][0] <= r)
+				++i;
+		}
+		return ret;
+	}
+};
+
+int main() {
+	std::vector<std::vector<int>> v {{3,9},{7,12},{3,8},{6,8},{9,10},{2,9},{0,9},{3,9},{0,6},{2,8}}; // {{10, 16}, {2, 8}, {1, 6}, {7, 12}};
+	std::cout << Solution::findMinArrowShots(v);
+	return 0;
+}

2201/CMakeLists.txt

@@ -3,4 +3,4 @@ PROJECT(2201)
 
 SET(CMAKE_CXX_STANDARD 23)
 
-ADD_EXECUTABLE(2201 220113-CN.cpp)
+ADD_EXECUTABLE(2201 220113.cpp)