code: добавлена проверка ввода

main.cpp

@@ -14,8 +14,10 @@ struct Input {
 Input
 input_data() {
     int i;
-    string check(" ");
     size_t number_count;
+    string check1 = " ";
+    string check2 = "#";
+ 
     cerr << "Enter number count: ";
     cin >> number_count;
 
@@ -31,9 +33,20 @@ input_data() {
 
  
     cerr << "Enter stroke colour without spaces or in code format:";
-    cin >> in.stroke;  
+    cin.ignore();
-    return in;
+    getline(cin, in.stroke);
 
+    for (i = 0; i < in.stroke.length(); i++) {
+        if (isspace(in.stroke[i])) {
+            cerr << "invalid input";
+        }
+    }
+    if (in.stroke[0] == check2[0]) {
+        if (in.stroke.length() != 7) {
+            cerr << "invalid input";
+        }
+    }
+    return in;
 }
 
 int main()