Question
(The Location class) Design a class named Location for locating a maximal value and its location in a two-dimensional list. The class contains the public data fields row, column, and maxValue that store the maximal value and its indexes in a two-dimensional list, with row and column as int types and maxValue as a float type.
Write the following method that returns the location of the largest element in a two-dimensional list.
def Location locateLargest(a):
The return value is an instance of Location. Write a test program that prompts the user to enter a two-dimensional list and displays the location of the largest element in the list.
Here is a sample run:
Enter the number of rows and columns in the list: 3, 4
Enter row 0: 23.5 35 2 10
Enter row 1: 4.5 3 45 3.5
Enter row 2: 35 44 5.5 12.6
The location of the largest element is 45 at (1, 2)
Answer
The Location class Program Code:
class Location:
def __init__(self, row=0, column=0, maxValue=0.0):
self.row = row
self.column = column
self.maxValue = maxValue
@staticmethod
def locateLargest(a):
max_value = float('-inf')
max_row = 0
max_column = 0
# Iterate over the rows and columns of the two-dimensional list
for row in range(len(a)):
for column in range(len(a[row])):
if a[row][column] > max_value:
max_value = a[row][column]
max_row = row
max_column = column
# Create a new Location instance with the maximum value and its location
location = Location(max_row, max_column, max_value)
return location
# Test program
def test_locate_largest():
# Prompt the user to enter the dimensions of the list
rows, columns = map(int, input("Enter the number of rows and columns in the list: ").split(', '))
# Prompt the user to enter the elements of the list row by row
a = []
for i in range(rows):
row_values = [float(x) for x in input(f"Enter row {i}: ").split()]
a.append(row_values)
# Find the location of the largest element in the list
location = Location.locateLargest(a)
# Display the location of the largest element
print(f"The location of the largest element is {location.maxValue} at ({location.row}, {location.column})")
# Run the test program
test_locate_largest()
Executed Output:
Enter the number of rows and columns in the list: 3, 4
Enter row 0: 23.5 35 2 10
Enter row 1: 4.5 3 45 3.5
Enter row 2: 35 44 5.5 12.6
The location of the largest element is 45.0 at (1, 2)