From a14763fff526380b87c14c7c426cc6e75a9d2229 Mon Sep 17 00:00:00 2001
From: ValAnn <valovaanna04@mail.ru>
Date: Fri, 13 Oct 2023 11:12:32 +0400
Subject: [PATCH] result +-

---
 DumpTruck/DumpTruck/CarsGenericCollection.cs | 10 +++++-----
 DumpTruck/DumpTruck/SetGeneric.cs            | 12 +++++++-----
 2 files changed, 12 insertions(+), 10 deletions(-)

diff --git a/DumpTruck/DumpTruck/CarsGenericCollection.cs b/DumpTruck/DumpTruck/CarsGenericCollection.cs
index 9f2388c..5b79fe6 100644
--- a/DumpTruck/DumpTruck/CarsGenericCollection.cs
+++ b/DumpTruck/DumpTruck/CarsGenericCollection.cs
@@ -52,14 +52,14 @@ namespace DumpTruck.Generics
         /// <param name="collect"></param>
         /// <param name="obj"></param>
         /// <returns></returns>
-        public static T? operator +(CarsGenericCollection<T, U> collect, T?
+        public static int operator +(CarsGenericCollection<T, U> collect, T?
         obj)
         {
             if (obj == null)
             {
-                return null;
+                return -1;
             }
-            return collect?._collection.Insert(obj) ?? null;
+            return collect._collection.Insert(obj);
         }
         /// <summary>
         /// Перегрузка оператора вычитания
@@ -67,7 +67,7 @@ namespace DumpTruck.Generics
         /// <param name="collect"></param>
         /// <param name="pos"></param>
         /// <returns></returns>
-        public static T? operator -(CarsGenericCollection<T, U> collect, int
+        public static bool operator -(CarsGenericCollection<T, U> collect, int
         pos)
         {
             T? obj = collect._collection.Get(pos);
@@ -75,7 +75,7 @@ namespace DumpTruck.Generics
             {
                 collect._collection.Remove(pos);
             }
-            return obj;
+            return true;
         }
         /// <summary>
         /// Получение объекта IMoveableObject
diff --git a/DumpTruck/DumpTruck/SetGeneric.cs b/DumpTruck/DumpTruck/SetGeneric.cs
index 974765c..c76f900 100644
--- a/DumpTruck/DumpTruck/SetGeneric.cs
+++ b/DumpTruck/DumpTruck/SetGeneric.cs
@@ -3,11 +3,13 @@ using System.Collections.Generic;
 using System.Linq;
 using System.Text;
 using System.Threading.Tasks;
+using System.Windows.Forms.VisualStyles;
 
 namespace DumpTruck.Generics
 {
     internal class SetGeneric<T>
         where T : class
+ 
     {
         /// <summary>
         /// Массив объектов, которые храним
@@ -32,10 +34,10 @@ namespace DumpTruck.Generics
         /// </summary>
         /// <param name="car">Добавляемый автомобиль</param>
         /// <returns></returns>
-        public T? Insert(T car)
+        public int Insert(T car)
         {
             if (_places[Count - 1] != null)
-                return null;
+                return -1;
             return Insert(car, 0);
         }
         /// <summary>
@@ -44,10 +46,10 @@ namespace DumpTruck.Generics
         /// <param name="car">Добавляемый автомобиль</param>
         /// <param name="position">Позиция</param>
         /// <returns></returns>
-        public T? Insert(T car, int position)
+        public int Insert(T car, int position)
         {
             if (!(position >= 0 && position < Count))
-                return null;
+                return -1;
             if (_places[position] != null)
                 {
                 int indexEnd = position + 1;
@@ -62,7 +64,7 @@ namespace DumpTruck.Generics
 
                 }
             _places[position] = car;
-            return car;
+            return position;
         }
             // TODO проверка, что элемент массива по этой позиции пустой, если нет, то
             // проверка, что после вставляемого элемента в массиве есть пустой элемент