diff --git a/i.Smirnov_25.11.cpp b/i.Smirnov_25.11.cpp
index 8cae749..c10e3a0 100644
--- a/i.Smirnov_25.11.cpp
+++ b/i.Smirnov_25.11.cpp
@@ -1,6 +1,6 @@
 #include <vector>
 
-float D(o, a)
+float D(float o, float a)
 {
     float d=o/a;
     return d;