Commit 15 code

src/main/c/sudoku.c

@@ -260,6 +260,22 @@ void turnFunction(int grid[SIZE][SIZE]) {
 
 void tipFunction(int grid[SIZE][SIZE]) {
     printf("\nTip function - Choose an option:\n");
+    
+    int option = 0;
+
+    while (true){
+    char tip_str[10];
+        scanf("%s", tip_str);
+
+
+        option = tip_str[0] - '0'; // Convert the first character to an integer
+
+        if ((option >= 1 && option <= 3) && tip_str[1] == '\0') {
+            break;
+        } else {
+            printf("Invalid input. Please enter a number between 1 and 3.\n");
+        }
+    }
 }