Data commit

Task/Guess-the-number-With-feedback-player-/UNIX-Shell/guess-the-number-with-feedback-player-.sh

@@ -0,0 +1,18 @@
+read -p "Lower bound: " lower
+read -p "Upper bound: " upper
+moves=0
+PS3="> "
+while :; do
+    ((moves++))
+    guess=$(( lower + (upper-lower)/2 ))
+    echo "Is it $guess?"
+    select ans in "too small" "too big" "got it!"; do
+        case $ans in
+            "got it!")   break 2 ;;
+            "too big")   upper=$(( upper==guess ? upper-1 : guess )); break ;;
+            "too small") lower=$(( lower==guess ? lower+1 : guess )); break ;;
+        esac
+    done
+    ((lower>upper)) && echo "you must be cheating!"
+done
+echo "I guessed it in $moves guesses"