Page 282 - Computer Science V2.0 Class 11

03 Objective: To find maximum of three numbers
04 Inputs:
05 num1, num2, num3 : Numeric values'''
06 if num1 < num2:
07 if num2 < num3:
08 return num3
09 else:
10 return num2
11 else:
12 if num1 < num3:
13 return num3
14 else:
15 return num1
16 n1 = int(input('Enter first number :'))
17 n2 = int(input('Enter second number :'))
18 n3 = int(input('Enter third number :'))
19 print('Maximum of ', n1, n2, n3, ':', max3(n1, n2, n3))

Output:
>>> Enter first number :9
>>> Enter second number :4
>>> Enter third number :10
Maximum of 9 4 10 : 10
Maximum of Three Numbers (Revisited): Note that the above solution to finding the largest of three numbers is
somewhat confusing. We can simplify the above code substantially if we first write a function to find the maximum of
a pair of numbers, as illustrated in Program 10.12:

Program 10.12 Write a function max2(n1,n2) that finds the maximum of two numbers and then make use of the
function max2(n1,n2) to write the function max3(n1, n2, n3) to find the maximum of the numbers n1, n2, and n3.

01 def max2(num1, num2):
02 '''
03 Objective: To find maximum of two numbers
04 Inputs :
05 num1, num2: Numeric values
06 Return value: Maximum of num1, num2
07 '''
08 if num1 < num2:
09 return num2
10 else:
11 return num1
12
13 def max3(num1, num2, num3):
14 '''
15 Objective: To find maximum of three numbers
16 Inputs:
17 num1, num2, num3 : Numeric values
18 Return value: Maximum of num1, num2, num3
19 '''
20
21 temp = max2(num1, num2)
22 return max2(temp, num3)
23
24 n1 = int(input('Enter first number :'))
25 n2 = int(input('Enter second number : '))
26 n3 = int(input('Enter third number : '))
27 print('Maximum of', n1, n2, n3, ':', max3(n1, n2, n3))

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