Create 100 python exercises - ex15.py

Author: pecopiano

100 python exercises - ex15.py

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+# Question 15
+# Level 2
+# 
+# Question:
+# Write a program that computes the value of a+aa+aaa+aaaa
+# with a given digit as the value of a.
+
+# Suppose the following input is supplied to the program:
+# 9
+# Then, the output should be:
+# 11106
+# 
+
+# Function:
+#	1 - Ask a digit
+#	2 - Ask how many time it should be added (2--> a + aa / 4--> a + aa + aaa + aaaa)
+
+
+def conv(digit, repeats):
+        start = range(1,repeats+1)
+        sequence = []
+        count = 0
+        for p in start:
+                sequence.append(int(str(digit) * p))
+        for p in sequence:
+               count = count + p
+        return count
+
+digit = int(raw_input("digit? "))
+repeats = int(raw_input("repeats? "))
+
+print conv(digit,repeats)
+
+# Book's Solution:
+# a = raw_input()
+# n1 = int( "%s" % a )
+# n2 = int( "%s%s" % (a,a) )
+# n3 = int( "%s%s%s" % (a,a,a) )
+# n4 = int( "%s%s%s%s" % (a,a,a,a) )
+# print n1+n2+n3+n4