연결 요소의 개수 문제 추가

깊이or너비 우선 탐색/연결_요소의_개수.py

@@ -0,0 +1,40 @@
+# https://www.acmicpc.net/problem/11724
+
+from collections import deque
+
+n,m = map(int,input().split())
+
+graph = [[] for _ in range(n+1)]
+
+for _ in range(m):
+    a,b = map(int,input().split())
+    graph[a].append(b)
+    graph[b].append(a)
+
+visited = [0] * (n+1)
+
+def bfs(start):
+    queue = deque()
+    queue.append(start)
+    visited[start] == 1
+
+    while queue:
+        value = queue.popleft()
+        for item in graph[value]:
+            if visited[item] == 0:
+                queue.append(item)
+                visited[item] = 1
+cnt = 0
+
+for i in range(1,n+1):
+    if visited[i] == 0:
+        bfs(i)
+        cnt += 1
+
+print(cnt)
+
+
+
+
+
+