From 5b24a25a0fb561e6338ab50927fd4bb7f8488fe6 Mon Sep 17 00:00:00 2001
From: Ren Baoshuo <i@baoshuo.ren>
Date: Fri, 4 Dec 2020 07:13:19 +0800
Subject: [PATCH] =?UTF-8?q?P4387=20=E3=80=90=E6=B7=B1=E5=9F=BA15.=E4=B9=A0?=
 =?UTF-8?q?9=E3=80=91=E9=AA=8C=E8=AF=81=E6=A0=88=E5=BA=8F=E5=88=97?=
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R43140011
---
 problem/P4387/P4387.cpp | 31 +++++++++++++++++++++++++++++++
 1 file changed, 31 insertions(+)
 create mode 100644 problem/P4387/P4387.cpp

diff --git a/problem/P4387/P4387.cpp b/problem/P4387/P4387.cpp
new file mode 100644
index 00000000..3c7c7d9f
--- /dev/null
+++ b/problem/P4387/P4387.cpp
@@ -0,0 +1,31 @@
+#include <bits/stdc++.h>
+
+using namespace std;
+
+int main() {
+    int q;
+    cin >> q;
+    while (q--) {
+        int n, s = 1, a[100005], b[100005];
+        stack<int> st;
+        cin >> n;
+        for (int i = 1; i <= n; i++) {
+            cin >> a[i];
+        }
+        for (int i = 1; i <= n; i++) {
+            cin >> b[i];
+        }
+        for (int i = 1; i <= n; i++) {
+            st.push(a[i]);
+            while (!st.empty() && st.top() == b[s]) {
+                st.pop();
+                s++;
+            }
+        }
+        if (st.empty())
+            cout << "Yes" << endl;
+        else
+            cout << "No" << endl;
+    }
+    return 0;
+}