Create 2359. Find Closest Node to Given Two Nodes

2359. Find Closest Node to Given Two Nodes

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+class Solution {
+public:
+    vector<int> bfs(const vector<int>& edges, int start) {
+        int n = edges.size();
+        vector<int> dist(n, -1);
+        queue<int> q;
+        q.push(start);
+        dist[start] = 0;
+
+        while (!q.empty()) {
+            int node = q.front();
+            q.pop();
+
+            int next = edges[node];
+            if (next != -1 && dist[next] == -1) {
+                dist[next] = dist[node] + 1;
+                q.push(next);
+            }
+        }
+        return dist;
+    }
+
+    int closestMeetingNode(vector<int>& edges, int node1, int node2) {
+        vector<int> dist1 = bfs(edges, node1);
+        vector<int> dist2 = bfs(edges, node2);
+
+        int minDist = INT_MAX, res = -1;
+        for (int i = 0; i < edges.size(); ++i) {
+            if (dist1[i] != -1 && dist2[i] != -1) {
+                int maxDist = max(dist1[i], dist2[i]);
+                if (maxDist < minDist) {
+                    minDist = maxDist;
+                    res = i;
+                }
+            }
+        }
+        return res;
+    }
+};