Create 947. Most Stones Removed with Same Row or Column

947. Most Stones Removed with Same Row or Column

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+class Solution {
+private:
+    int bfs(vector<vector<int>>& stones, int start_index, vector<bool>& visited, int n) {
+        queue<int> q;
+        q.push(start_index);
+        visited[start_index] = true;
+        int count = 0;
+        while (!q.empty()) {
+            int index = q.front();
+            q.pop();
+            for (int i = 0; i < n; i++) {
+                if(!visited[i]){
+                    if((stones[i][0] == stones[index][0] || stones[i][1] == stones[index][1])){
+                          visited[i] = true;
+                    q.push(i);
+                    count++; 
+                    }
+                }
+            }
+        }
+        return count;
+    }
+
+public:
+    int removeStones(vector<vector<int>>& stones) {
+        int n = stones.size();
+        vector<bool> visited(n, 0);
+        int ans = 0;
+        for (int i = 0; i < n; i++) {
+            if (!visited[i]) {
+                ans += bfs(stones, i, visited, n);
+            }
+        }
+        return ans;
+    }
+};