Programming in Modern C++ Week 9 Solutions

ABOUT THE COURSE :

Disclaimer: The answers to these questions are provided for educational and informational purposes only. This website does not claim any surety of 100% correct answers. So, this website urges you to complete your assignment yourself.

There has been a continual debate on which programming language/s to learn, to use. As the latest TIOBE Programming Community Index for August 2021 indicates – C (13%), Python (12%), C++ (7%), Java (10%), and C#(5%) together control nearly half the programming activities worldwide. Further, C Programming Language Family (C, C++, C#, Objective C etc.) dominate more than 25% of activities. Hence, learning C++ is important as one learns about the entire family, about Object-Oriented Programming and gets a solid foundation to also migrate to Java and Python as needed. C++ is the mother of most general purpose of languages. It is multi-paradigm encompassing procedural, object-oriented, generic, and even functional programming. C++ has primarily been the systems language till C++03 which punches efficiency of the code with the efficacy of OOP. Then, why should I learn it if my primary focus is on applications? This is where the recent updates of C++, namely, C++11 and several later offer excellent depths and flexibility for C++ that no language can match. These extensions attempt to alleviate some of the long-standing shortcomings for C++ including porous resource management, error-prone pointer handling, expression semantics, and better readability. The present course builds up on the knowledge of C programming and basic data structure (array, list, stack, queue etc.) to create a strong familiarity with C++98 / C++03. Besides the constructs, syntax and semantics of C++ (over C), we also focus on various idioms of C++ and attempt to go to depth with every C++ feature justifying and illustrating them with several examples and assignment problems. On the way, we illustrate various OOP concepts. The course also covers important advances in C++11 and later released features.

Summary
Course Type	Elective
Duration	12 weeks
Category	Computer Science and Engineering
Start Date	22 Jan 2024
End Date	12 Apr 2024
Exam Registration Ends	16 Feb 2024
Exam Date	28 Apr 2024 IST

Assignment Solutions :

Week 9 Solutions

Programming Assignment :

W9_Programming_Qs-1 :

Consider the following program which takes name and rank of some players, followed by the type of sorting (1 for sort by the length of name and 2 for sort by rank) as input. It prints the players' information in the corresponding sorted order. Complete the program with the following instructions.
      • Fill the missing code segments at code segment-1 and code-segment-2 with the ap- propriate overriding of function operator.
The program must satisfy the sample input and output.

struct cmpByName{
    //code-segment-1
  bool operator()( player& e1,  player& e2) {
    return e1.get_name().length() < e2.get_name().length();
}
};
 
struct cmpByRank{
    //code-segment-2
  bool operator()( player& e1,  player& e2) {
    return e1.get_rank() < e2.get_rank();
}
};

W9_Programming_Qs-2 :

#include <iostream>
#include <map>
#include <list>
std::map<int, int> findFrequency(std::list<int> li){
    std::map<int, int> fqMap; 
    for ( std::list<int>::iterator it = li.begin(); it != li.end(); ++it)   //LINE-1
        fqMap[*it]++;
    return fqMap;
}
 
void print(std::map<int, int> fq){
    for (std::map<int, int>::iterator it = fq.begin(); it != fq.end(); ++it)    //LINE-2
        std::cout << it->first << " => " << it->second << ", ";
}

W8_Programming_Qs-3 :

Consider the following program that filters the elements from a given list li within a given upper and lower bounds and prints them.
      • Fill in the blanks at LINE-1 with appropriate template declaration.
      • Fill in the blanks at LINE-2 with an appropriate condition of the while loop.
      • Fill in the blanks at LINE-3 with an appropriate call to function find if such that it returns an iterator object to the first element from li that match the given predicate with upper and lower bounds.
The program must satisfy the sample input and output.

template<class T, class Pred>                         //LINE-1
T find_if(T first, T last, Pred prd) {
    while (first != last && !prd(*first)) ++first;         //LINE-2
        return first;
}
 
void print(std::list<int> li, int lb, int ub){
    boundIt<int> bnd(lb, ub);
    std::list<int>::iterator it = find_if(li.begin(), li.end(), bnd);    //LINE-3
    while(it != li.end()){
        std::cout << *it << " ";
        it = find_if(++it, li.end(), bnd);
    }
}

CRITERIA TO GET A CERTIFICATE :

1. Average assignment score = 25% of average of best 8 assignments out of the total 12 assignments given in the course.
2. Exam score = 75% of the proctored certification exam score out of 100
3. Final score = Average assignment score + Exam score

YOU WILL BE ELIGIBLE FOR A CERTIFICATE ONLY IF AVERAGE ASSIGNMENT SCORE >=10/25 AND EXAM SCORE >= 30/75. If one of the 2 criteria is not met,you will not get the certificate even if the Final score >= 40/100.

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