Data commit

Task/24-game/Nanoquery/24-game.nanoquery

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+import Nanoquery.Lang
+import Nanoquery.Util
+
+// a function to get the digits from an arithmetic expression
+def extract_digits(input)
+	input = str(input)
+	digits = {}
+
+	loc = 0
+	digit = ""
+	while (loc < len(input))
+		if input[loc] in "0123456789"
+			digit += input[loc]
+		else
+			if len(digit) > 0
+				digits.append(int(digit))
+				digit = ""
+			end
+		end
+		loc += 1
+	end
+	// check if there's a final digit
+	if len(digit) > 0
+		digits.append(int(digit))
+	end
+
+	return digits
+end
+
+// a function to duplicate a digit list
+def dup(list)
+	nlist = {}
+	
+	for n in list
+		nlist.append(new(Integer, n))
+	end
+	
+	return nlist
+end
+
+// generate four random digits and output them
+random = new(Random)
+randDigits = {}
+for i in range(1, 4)
+	randDigits.append(random.getInt(8) + 1)
+end
+println "Your digits are: " + randDigits + "\n"
+
+// get expressions from the user until a valid one is found
+won = false
+while !won
+	print "> "
+	expr = input()
+	tempDigits = dup(randDigits)
+
+	// check for invalid digits in the expression
+	invalid = false
+	digits = extract_digits(expr)
+	for (i = 0) (!invalid and (i < len(digits))) (i += 1)
+		if not digits[i] in tempDigits
+			invalid = true
+			println "Invalid digit " + digits[i]
+		else
+			tempDigits.remove(tempDigits)
+		end
+	end
+
+	// if there were no invalid digits, check if the expression
+	// evaluates to 24
+	if !invalid
+		a = null
+		try
+			exec("a = " + expr)
+		catch
+			println "Invalid expression " + expr
+		end
+		println a
+
+		if a = 24
+			println "Success!"
+			won = true
+		end
+	end
+end