Properly handled a case when addition was wrongly assumed

input_resolver.cpp

@@ -71,7 +71,7 @@ Command resolveCommand()
 
     bool shouldQuit = token.find("q") != token.npos;
     bool shouldPrint = token.find("p") != token.npos;
-    char operation;
+    char operation = 0;
 
     for (const char c: token)
     {
@@ -80,11 +80,12 @@ Command resolveCommand()
         {
             operation = c;
         }
-        else
+    }
+
+    if (operation == 0)
     {
         operation = '+';
     }
-    }
 
     return {shouldQuit, operation, validation_result.next_arg(), shouldPrint};
 }