diff --git a/Luogu/P7514/P7514.cpp b/Luogu/P7514/P7514.cpp
new file mode 100644
index 00000000..f50d2dc6
--- /dev/null
+++ b/Luogu/P7514/P7514.cpp
@@ -0,0 +1,28 @@
+#include <iostream>
+#include <limits>
+
+using std::cin;
+using std::cout;
+using std::endl;
+
+const int N = 1000005;
+
+int n, m, a[N], b[N];
+
+int main() {
+    cin >> n >> m;
+    for (int i = 1; i <= n; i++) {
+        cin >> a[i];
+    }
+    for (int i = 1; i <= n; i++) {
+        cin >> b[i];
+    }
+    int min = std::numeric_limits<int>::max(),
+        max = std::numeric_limits<int>::min();
+    for (int i = 1; i <= n; i++) {
+        min = std::min(min, std::max(a[i], b[i]));
+        max = std::max(max, std::min(a[i], b[i]));
+    }
+    cout << max - min << endl;
+    return 0;
+}