diff --git a/Luogu/B2026/B2026.cpp b/Luogu/B2026/B2026.cpp
new file mode 100644
index 00000000..db9b7a57
--- /dev/null
+++ b/Luogu/B2026/B2026.cpp
@@ -0,0 +1,15 @@
+#include <cmath>
+#include <iostream>
+
+using std::cin;
+using std::cout;
+const char endl = '\n';
+
+double a, b;
+
+int main() {
+    std::ios::sync_with_stdio(false);
+    cin >> a >> b;
+    cout << fmod(a, b) << endl;
+    return 0;
+}