Update 100+ Python challenging programming exercises.txt

100+ Python challenging programming exercises.txt

@@ -2371,5 +2371,47 @@ solutions=solve(numheads,numlegs)
 print solutions
 
 #----------------------------------------#
+Level: Easy
+Question:
+Write a Person Class with an instance variable, age, and a constructor that takes an integer, initialAge, as a parameter. The constructor must assign initialAge to age after confirming the argument passed as initialAge is not negative; if a negative argument is passed as initialAge, the constructor should set age to 0 and print "Age is not valid, setting age to 0.". In addition, you must write the following instance methods:
+
+1. yearPasses() should increase the  instance variable by 1.
+2. amIOld() should perform the following conditional actions:
+   * If age < 13, print "You are young.".
+   * If age > or equal to 13 and age < or equal to 18, print "You are a teenager.".
+   * Otherwise, print "You are old.".
+
+(credit: HackerRank (30 days of Code))
+
+Answer:
+
+class Person:
+    def __init__(self,initialAge):
+        self.age = initialAge
+
+    def amIOld(self):
+        if self.age<13:
+            if self.age<0:
+                self.age=0
+                print("Age is not valid, setting age to 0.")
+            print("You are young.")
+        elif 13<=self.age<18:
+            print("You are a teenager.")
+        else:
+            print("You are old.")
+
+    def yearPasses(self):
+        self.age+=1
+
+t = int(input())
+for i in range(0, t):
+    age = int(input())         
+    p = Person(age)  
+    p.amIOld()
+    for j in range(0, 3):
+        p.yearPasses()       
+    p.amIOld()
+    print("")
+#----------------------------------------#