From ec9fe743da237adc8eec0a992f08828ec9470043 Mon Sep 17 00:00:00 2001
From: Ren Baoshuo <i@baoshuo.ren>
Date: Sun, 3 Jan 2021 20:44:28 +0800
Subject: [PATCH] =?UTF-8?q?#159.=20=E3=80=90=E6=A8=A1=E6=9D=BF=E3=80=91?=
 =?UTF-8?q?=E6=9C=80=E5=A4=A7=E5=BC=82=E6=88=96=E5=92=8C?=
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https://sjzezoj.com/submission/7564
---
 S2OJ/159/159.cpp | 34 ++++++++++++++++++++++++++++++++++
 1 file changed, 34 insertions(+)
 create mode 100644 S2OJ/159/159.cpp

diff --git a/S2OJ/159/159.cpp b/S2OJ/159/159.cpp
new file mode 100644
index 00000000..66ca04a3
--- /dev/null
+++ b/S2OJ/159/159.cpp
@@ -0,0 +1,34 @@
+#include <bits/stdc++.h>
+
+using namespace std;
+
+int n;
+long long t, ans, p[60];
+
+void insert(long long x) {
+    for (int i = 50; i >= 0; i--) {
+        if (x & (1ll << i)) {
+            if (!p[i]) {
+                p[i] = x;
+                break;
+            } else {
+                x ^= p[i];
+            }
+        }
+    }
+}
+
+int main() {
+    cin >> n;
+    for (int i = 1; i <= n; i++) {
+        cin >> t;
+        insert(t);
+    }
+    for (int i = 50; i >= 0; i--) {
+        if ((ans ^ p[i]) > ans) {
+            ans ^= p[i];
+        }
+    }
+    cout << ans << endl;
+    return 0;
+}