Added Level 1 Excercises solutions

Author: zac11

Level1/Ex_2.py

@@ -0,0 +1,29 @@
+"""
+Write a program which can compute the factorial of a given numbers.
+The results should be printed in a comma-separated sequence on a single line.
+Suppose the following input is supplied to the program:
+8
+Then, the output should be:
+40320
+"""
+
+def factorial(x):
+    if x==0:
+        return 1
+    return x*factorial(x-1)
+
+
+x=int(input())
+print(factorial(x))
+
+
+
+"""
+Output :
+
+8
+=8*7*6*5*4*3*2*1 = 40320
+
+10
+=10*9*8*7*6*5*4*3*2*1 = 3628800
+"""

Level1/Ex_3.py

@@ -0,0 +1,27 @@
+"""
+
+With a given integral number n, write a program to generate a dictionary that contains (i, i*i) such that is an integral number between 1 and n (both included). and then the program should print the dictionary.
+Suppose the following input is supplied to the program:
+8
+Then, the output should be:
+{1: 1, 2: 4, 3: 9, 4: 16, 5: 25, 6: 36, 7: 49, 8: 64}
+
+
+"""
+
+n=int(input())
+d= dict()
+
+for i in range(1,n+1):
+    d[i]=i*i
+
+print(d)
+
+
+"""
+Output :
+
+10
+{1: 1, 2: 4, 3: 9, 4: 16, 5: 25, 6: 36, 7: 49, 8: 64, 9: 81, 10: 100}
+
+"""

Level1/Ex_4.py

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+"""
+
+Write a program which accepts a sequence of comma-separated numbers from console and generate a list and a tuple which contains every number.
+Suppose the following input is supplied to the program:
+34,67,55,33,12,98
+Then, the output should be:
+['34', '67', '55', '33', '12', '98']
+('34', '67', '55', '33', '12', '98')
+
+"""
+
+
+raw_values = (input())
+
+l = raw_values.split(',')
+
+t= tuple(l)
+
+print(t)
+
+print(l)
+
+"""
+Output :
+
+34,22,33,44,44,55,66,33,65,78
+('34', '22', '33', '44', '44', '55', '66', '33', '65', '78')
+['34', '22', '33', '44', '44', '55', '66', '33', '65', '78']
+
+
+"""

Level1/Ex_5.py

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+"""
+
+Question:
+Define a class which has at least two methods:
+getString: to get a string from console input
+printString: to print the string in upper case.
+Also please include simple test function to test the class methods.
+
+"""
+
+class InputOutString(object):
+    def __init__(self):
+        self.s=''
+
+    def getString(self):
+        self.s=input()
+
+
+    def printString(self):
+        print(self.s.upper())
+
+
+strObj = InputOutString()
+strObj.getString()
+strObj.printString()
+
+"""
+Output :
+
+lionel messi is god
+LIONEL MESSI IS GOD
+
+"""