Update Solution.cpp

Author: yanglbme

solution/0900-0999/0973.K Closest Points to Origin/Solution.cpp

@@ -1,9 +1,9 @@
 class Solution {
 public:
     vector<vector<int>> kClosest(vector<vector<int>>& points, int k) {
-        sort(points.begin(), points.end(), [](const vector<int>& a, const vector<int>& b) {
-            return a[0] * a[0] + a[1] * a[1] < b[0] * b[0] + b[1] * b[1];
+        sort(points.begin(), points.end(), [](const vector<int>& p1, const vector<int>& p2) {
+            return hypot(p1[0], p1[1]) < hypot(p2[0], p2[1]);
         });
         return vector<vector<int>>(points.begin(), points.begin() + k);
     }
-};
+};