refactoring: made an extra function(getOperatorInput) which helps read and print user's operation value in a single step

src/main/c/programmingMode.c

@@ -13,6 +13,14 @@ int getIntegerInput(const char* prompt) {
     return num;
 }
 
+// Display the diffrent operations and scan them
+char getOperatorInput() {
+    char operator;
+    printf("Enter operator (+, -, *, /): ");
+    scanf(" %c", &operator);
+    return operator;
+}
+
 // Calculation
 int performOperation(int num1, char operator, int num2) {
     switch (operator) {
@@ -40,10 +48,7 @@ void programmingMode() {
     char operator;
 
     num1 = getIntegerInput("Enter first integer: ");
-
-    printf("Enter operator (+, -, *, /): ");
-    scanf(" %c", &operator);
-
+    operator = getOperatorInput();
     num2 = getIntegerInput("Enter second integer: ");
 
     // Calculation + Display the result