Welcome to “guess the number game”
Task: Enter a 4-digit number, in a range of [1023 -9876] having each of the digits different from others to guess the random target number given by the computer.
Enter a 4-digit number:
1234
-1
Enter a 4-digit number:
1236
-2
Enter a 4-digit number:
2643
+2
Enter a 4-digit number:
2678
+2 -1
Enter a 4-digit number:
2680
+4
Congratulations! You've found the target number in 5 attempts.