From d4e5d47133e896cfb67db13ff6a2cab05b50c2ae Mon Sep 17 00:00:00 2001
From: Baoshuo <i@baoshuo.ren>
Date: Mon, 12 Sep 2022 21:35:18 +0800
Subject: [PATCH] =?UTF-8?q?1981=20-=20=E9=93=81=E6=86=A8=E6=86=A8=E9=AA=91?=
 =?UTF-8?q?=E5=A3=AB=E5=9B=A2=E7=9A=84=E7=BC=8E=E5=B8=A6=E5=88=86=E9=85=8D?=
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77470
---
 bjtu/1981/1981.cpp | 30 ++++++++++++++++++++++++++++++
 1 file changed, 30 insertions(+)
 create mode 100644 bjtu/1981/1981.cpp

diff --git a/bjtu/1981/1981.cpp b/bjtu/1981/1981.cpp
new file mode 100644
index 00000000..2e0d51e7
--- /dev/null
+++ b/bjtu/1981/1981.cpp
@@ -0,0 +1,30 @@
+#include <iostream>
+#include <algorithm>
+#include <utility>
+
+using std::cin;
+using std::cout;
+const char endl = '\n';
+
+int main() {
+    std::ios::sync_with_stdio(false);
+    cin.tie(nullptr);
+
+    int n;
+
+    cin >> n;
+
+    while (n--) {
+        std::pair<int, int> p[2];
+
+        for (int i = 0; i < 2; i++) {
+            cin >> p[i].first >> p[i].second;
+        }
+
+        std::sort(p, p + 2);
+
+        cout << (p[1].first < p[0].second ? "YES" : "NO") << endl;
+    }
+
+    return 0;
+}