Added number size check in input handler

src/inputHandler.c

@@ -1,5 +1,5 @@
 #include "inputHandler.h"
-#include <string.h>
+#include <stdio.h>
 
 // return operation id for a specific symbol
 int getOperationIdBySymbol(char symbol) {
@@ -50,3 +50,9 @@ int isOperationIdValid(int id) {
     if(id < 0 || id > 7) return 0;
     return 1;
 }
+
+int isNumberTooBig(int number) {
+    if(number < 200) return 0;
+    printf("Diese Nummer ist zu groß");
+    return 1;
+}

src/inputHandler.h

@@ -7,4 +7,6 @@ char getOperationSymbolById(int);
 
 int isOperationIdValid(int);
 
+int isNumberTooBig(int);
+
 #endif //THEADMIRALS_INPUTHANDLER_H