From 496bfdadc8fde7e367e398a94954a63f8e03594e Mon Sep 17 00:00:00 2001
From: Ren Baoshuo <i@baoshuo.ren>
Date: Thu, 6 Aug 2020 01:55:51 +0800
Subject: [PATCH] =?UTF-8?q?P1161=20=E5=BC=80=E7=81=AF?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

R36448353
---
 problem/P1161/P1161.cpp | 21 +++++++++++++++++++++
 1 file changed, 21 insertions(+)
 create mode 100644 problem/P1161/P1161.cpp

diff --git a/problem/P1161/P1161.cpp b/problem/P1161/P1161.cpp
new file mode 100644
index 00000000..323331df
--- /dev/null
+++ b/problem/P1161/P1161.cpp
@@ -0,0 +1,21 @@
+// R36448353
+
+#include<bits/stdc++.h>
+
+using namespace std;
+
+int main() {
+    int n, t, ans;
+    n = t = ans = 0;
+    double a;
+    n = t = ans = 0;
+    cin >> n;
+    for(int i = 1 ; i <= n ; i++) {
+        cin >> a >> t;
+        for(int j = 1 ; j <= t ; j++) {
+            ans ^= int(j*a);
+        }
+    }
+    cout << ans << endl;
+    return 0;
+}
\ No newline at end of file