전력망을 둘로 나누기 / 심화

Author: oh-chaeyeon

oh-chaeyeon/7주차_그래프/전력망을_돌로_나누기.js

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+function solution(n, wires) {
+  const graph = Array.from({ length: n + 1 }, () => []);
+
+  for (const [v1, v2] of wires) {
+    graph[v1].push(v2);
+    graph[v2].push(v1);
+  }
+
+  let minDifference = Number.MAX_VALUE;
+
+  const dfs = (node, visited) => {
+    let count = 1;
+    visited[node] = true;
+
+    for (const neighbor of graph[node]) {
+      if (!visited[neighbor]) {
+        count += dfs(neighbor, visited);
+      }
+    }
+
+    return count;
+  };
+
+  for (const [v1, v2] of wires) {
+    const visited = Array(n + 1).fill(false);
+    visited[v1] = true;
+    const count = dfs(v2, visited);
+    const difference = Math.abs(count - (n - count));
+    minDifference = Math.min(minDifference, difference);
+  }
+
+  return minDifference;
+}