Added Level 2 Excercises solutions

Author: zac11

Level2/Ex_1.py

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+"""
+
+Question:
+Write a program that calculates and prints the value according to the given formula:
+Q = Square root of [(2 * C * D)/H]
+Following are the fixed values of C and H:
+C is 50. H is 30.
+D is the variable whose values should be input to your program in a comma-separated sequence.
+Example
+Let us assume the following comma separated input sequence is given to the program:
+100,150,180
+The output of the program should be:
+18,22,24
+"""
+
+import math
+
+val =[]
+c = 50
+h = 30
+
+items =[x for x in input().split(',')]
+for d in items:
+    val.append(str(int(round(math.sqrt(2*c*float(d)/h)))))
+
+print(','.join(val))
+
+
+"""
+Output :
+
+100,150
+18,22
+"""

Level2/Ex_2.py

@@ -0,0 +1,184 @@
+"""
+
+Question:
+Write a program which takes 2 digits, X,Y as input and generates a 2-dimensional array. The element value in the i-th row and j-th column of the array should be i*j.
+Note: i=0,1.., X-1; j=0,1,¡­Y-1.
+Example
+Suppose the following inputs are given to the program:
+3,5
+Then, the output of the program should be:
+[[0, 0, 0, 0, 0], [0, 1, 2, 3, 4], [0, 2, 4, 6, 8]]
+
+"""
+
+str_input = input()
+dimensions = [int(x) for x in str_input.split(',')]
+rowNum = dimensions[0]
+columnNum = dimensions[1]
+
+multilist = [[0 for col in range(columnNum)] for row in range(rowNum)]
+
+"""
+This creates a 4X6 dimensional array of 0's
+
+0 0 0 0 0 0
+0 0 0 0 0 0
+0 0 0 0 0 0
+0 0 0 0 0 0
+
+"""
+
+print(multilist)
+
+
+for row in range(rowNum):
+    for col in range(columnNum):
+        multilist[row][col]= row*col
+
+print(multilist)
+
+"""
+
+------------------Row 1----------------------
+
+for row in range(0):
+	for col in range(6):
+			multilist[0][0]= 1*0 = 0
+
+for row in range(0):
+	for col in range(6):
+			multilist[0][1]= 0*1 = 0
+
+
+for row in range(0):
+	for col in range(6):
+			multilist[0][2]= 0*2 = 0
+
+
+for row in range(0):
+	for col in range(6):
+			multilist[0][3]= 0*3 = 0
+
+
+for row in range(0):
+	for col in range(6):
+			multilist[0][4]= 0*4 = 0
+
+
+for row in range(0):
+	for col in range(6):
+			multilist[0][5]= 0*5 = 0
+
+
+for row in range(0):
+	for col in range(6):
+			multilist[0][6]= 0*6 = 0
+
+------------------Row 2-------------------------
+
+for row in range(1):
+	for col in range(6):
+			multilist[1][0]= 1*0 = 0
+
+for row in range(1):
+	for col in range(6):
+			multilist[1][1]= 1*1 = 1
+
+
+for row in range(1):
+	for col in range(6):
+			multilist[1][2]= 1*2 = 2
+
+
+for row in range(1):
+	for col in range(6):
+			multilist[1][3]= 1*3 = 3
+
+
+
+for row in range(1):
+	for col in range(6):
+			multilist[1][4]= 1*4 = 4
+
+
+for row in range(1):
+	for col in range(6):
+			multilist[1][5]= 1*5 = 5
+
+
+for row in range(1):
+	for col in range(6):
+			multilist[1][6]= 1*6 = 6
+
+
+------------------Row 3---------------------------
+
+for row in range(2):
+	for col in range(6):
+			multilist[2][0]= 2*0 = 0
+
+
+for row in range(2):
+	for col in range(6):
+			multilist[2][1]= 2*1 = 2
+
+
+for row in range(2):
+	for col in range(6):
+			multilist[2][2]= 2*2 = 4
+
+
+for row in range(2):
+	for col in range(6):
+			multilist[2][3]= 2*3 = 6
+
+
+for row in range(2):
+	for col in range(6):
+			multilist[2][4]= 2*4 = 8
+
+
+for row in range(2):
+	for col in range(6):
+			multilist[2][5]= 2*5 = 10
+
+
+for row in range(2):
+	for col in range(6):
+			multilist[2][6]= 2*6 = 12
+
+
+
+
+------------------Row 4---------------------------------
+
+for row in range(3):
+	for col in range(6):
+			multilist[3][0]= 3*0 = 0
+
+
+for row in range(3):
+	for col in range(6):
+			multilist[3][1]= 3*1 = 3
+
+
+for row in range(3):
+	for col in range(6):
+			multilist[3][2]= 3*2 = 6
+
+
+for row in range(3):
+	for col in range(6):
+			multilist[3][3]= 3*3 = 9
+
+
+for row in range(3):
+	for col in range(6):
+			multilist[3][4]= 3*4 = 12
+
+
+for row in range(3):
+	for col in range(6):
+			multilist[3][5]= 3*5 = 15
+
+"""

Level2/Ex_3.py

@@ -0,0 +1,25 @@
+"""
+
+Question:
+Write a program that accepts a comma separated sequence of words as input and prints the words in a comma-separated sequence
+after sorting them alphabetically.
+Suppose the following input is supplied to the program:
+without,hello,bag,world
+Then, the output should be:
+bag,hello,without,world
+
+"""
+enter_string = input()
+
+items = [x for x in enter_string.split(',')]
+
+items.sort()
+
+print(','.join(items))
+
+
+"""
+Input : lionel, christiano, diego, aguero
+Output : aguero, christiano, diego,lionel
+
+"""

Level2/Ex_4.py

@@ -0,0 +1,21 @@
+"""
+Write a program that accepts sequence of lines as input and prints the lines after making all characters in the sentence capitalized.
+Suppose the following input is supplied to the program:
+Hello world
+Practice makes perfect
+Then, the output should be:
+HELLO WORLD
+PRACTICE MAKES PERFECT
+
+"""
+lines =[]
+input_string = input()
+while True:
+    if input_string:
+        lines.append(input_string.upper())
+    else:
+        break
+
+for sent in lines:
+    print(sent)
+