From b85894c1ec17d798560c7c32ed855f9e02fd381b Mon Sep 17 00:00:00 2001
From: Ren Baoshuo <i@baoshuo.ren>
Date: Sun, 12 Sep 2021 16:07:25 +0800
Subject: [PATCH] =?UTF-8?q?836.=20=E5=90=88=E5=B9=B6=E9=9B=86=E5=90=88?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

https://www.acwing.com/problem/content/submission/code_detail/7683086/
---
 AcWing/836/836.cpp | 26 ++++++++++++++++++++++++++
 1 file changed, 26 insertions(+)
 create mode 100644 AcWing/836/836.cpp

diff --git a/AcWing/836/836.cpp b/AcWing/836/836.cpp
new file mode 100644
index 00000000..708d9f62
--- /dev/null
+++ b/AcWing/836/836.cpp
@@ -0,0 +1,26 @@
+#include <bits/stdc++.h>
+
+using namespace std;
+
+int n, m, a, b, fa[100005];
+char op;
+
+int getfa(int x) {
+    return fa[x] == x ? fa[x] : fa[x] = getfa(fa[x]);
+}
+
+int main() {
+    cin >> n >> m;
+    for (int i = 1; i <= n; i++) {
+        fa[i] = i;
+    }
+    for (int i = 0; i < m; i++) {
+        cin >> op >> a >> b;
+        if (op == 'M') {
+            fa[getfa(a)] = getfa(b);
+        } else {
+            cout << (getfa(a) == getfa(b) ? "Yes" : "No") << endl;
+        }
+    }
+    return 0;
+}