added warmup-1 problems

Author: saurabhmithe

Solutions/warmup-1/diff21.py

@@ -0,0 +1,12 @@
+# Given an int n, return the absolute difference between n and 21,
+# except return double the absolute difference if n is over 21.
+
+# diff21(19) → 2
+# diff21(10) → 11
+# diff21(21) → 0
+
+
+def diff21(n):
+    if n > 21:
+        return 2 * (n - 21)
+    return 21 - n

Solutions/warmup-1/makes10.py

@@ -0,0 +1,9 @@
+# Given 2 ints, a and b, return True if one if them is 10 or if their sum is 10.
+
+# makes10(9, 10) → True
+# makes10(9, 9) → False
+# makes10(1, 9) → True
+
+
+def makes10(a, b):
+    return (a == 10 or b == 10) or (a + b == 10)

Solutions/warmup-1/parrot_trouble.py

@@ -0,0 +1,13 @@
+# We have a loud talking parrot. The "hour" parameter
+# is the current hour time in the range 0..23.
+# We are in trouble if the parrot is talking and the
+# hour is before 7 or after 20.
+# Return True if we are in trouble.
+
+# parrot_trouble(True, 6) → True
+# parrot_trouble(True, 7) → False
+# parrot_trouble(False, 6) → False
+
+
+def parrot_trouble(talking, hour):
+    return talking and (hour < 7 or hour > 20)