C++ How to Program (10th Edition)
10th Edition
ISBN: 9780134448237
Author: Paul J. Deitel, Harvey Deitel
Publisher: PEARSON
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Question 4: (30 marks) A Math teacher is teaching Math course to a set of classes (each class may have different number of students) and want to check the behavior of his students in a homework report. The teacher gave the classes the same exam and marked their answer and wants to know the class whose students got the highest average. Help the teacher in the required analysis of student’s marks by implementing a Java program ClassAverageMArks2DimmArray using 2-dimensional array to store the students marks and then compute the average of each class student’s marks. The program has the following specification: • A Method titled averageClassMarks for computing the average (as double) of a class students marks (given to the method as a single-dimensional array) • Another Method titled averageAllClassesMarks for computing the average (as single array of double) of all the classes class student’s marks (given to the method as a 2dimensional array). This method has to repeatedly call the…
"""3.
Write a function validSolution/ValidateSolution/valid_solution()that accepts a 2D array representing a Sudoku board, and returns trueif it is a valid solution, or false otherwise. The cells of the sudokuboard may also contain 0's, which will represent empty cells.Boards containing one or more zeroes are considered to be invalid solutions.The board is always 9 cells by 9 cells, and every cell only contains integersfrom 0 to 9.
(More info at: http://en.wikipedia.org/wiki/Sudoku)"""
# Using dict/hash-tablefrom collections import defaultdict
def valid_solution_hashtable(board): for i in range(len(board)): dict_row = defaultdict(int) dict_col = defaultdict(int) for j in range(len(board[0])): value_row = board[i][j] value_col = board[j][i] if not value_row or value_col == 0: return False if value_row in dict_row: return False else: dict_row[value_row] += 1.
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Chapter 10 Solutions
C++ How to Program (10th Edition)
Ch. 10 - Prob. 10.6ECh. 10 - ( Overloading the Parentheses Operator) One nice...Ch. 10 - (Complex Class) Consider class Complex shown in...Ch. 10 - ( HugeInteger Class) A machine with 32- bit...Ch. 10 - (Rational Number Class) Create a rational Number...Ch. 10 - (Polynomial Class) Develop class polynomial. The...Ch. 10 - Prob. 10.12ECh. 10 - Prob. 10.13E
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