NPTEL Programming In Modern C++ Week8 Assignment Solution 2023

NPTEL-Programming-In-Modern-C-Week8-Assignment-Solution-2023

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..

Programming In Modern C++ Week8 Programming Assignment July 2023

INTENDED AUDIENCE :  Any interested audience
PREREQUISITES :  10th standard/high school
INDUSTRY SUPPORT :  Programming in C++ is so fundamental that all companies dealing with systems as well as application development (including web, IoT, embedded systems) have a need for the same. These include – Microsoft, Samsung, Xerox, Yahoo, Oracle, Google, IBM, TCS, Infosys, Amazon, Flipkart, etc. This course would help industry developers to be up-to-date with the advances in C++ so that they can remain at the state-of-the-art.

Course Layout

Week 1: Programming in C++ is Fun.
Week 2: C++ as Better C.
Week 3: OOP in C++.
Week 4: OOP in C++.
Week 5: Inheritance.
Week 6: Polymorphism.
Week 7: Type Casting.
Week 8: Exceptions and Templates.
Week 9: Streams and STL.
Week 10: Modern C++.
Week 11: Lambda and Concurrency.
Week 12: Move, Rvalue and STL Containers

Course Name : Programming In Modern C++ July 2023

Programming Assignment : Q1

Consider the following program. Fill in the blanks as per the instructions given below:
    • Fill in the blank at LINE-1 and LINE-2 with appropriate statements for class template specialization.
    • Fill in the blank at LINE-3 with appropriate initializer list.
				
					#include<iostream>
#include<cstring>
#include<cstdlib>

template<typename T>
class Manipulator{
    T val;
    public:
        Manipulator(T _val = 0) : val(_val) { }
        T deduct(int d){
            T t = val - d;
            return t;
        }
};

template<>    //LINE-1

class Manipulator<const char*> {   //LINE-2   
 
    char* val;
    public:
        Manipulator(const char* _val = 0) : val(strdup(_val)) { }    //LINE-3
        char* deduct(int d){
            char* buf = (char*)malloc(strlen(val) - d + 1);
            int i;
            for(i = 0; i < strlen(val) - d; i++)
                buf[i] = val[i];
            buf[i] = '\0';
            return buf;    
        }
};

int main(){
    int a;
    std::cin >> a;;
    Manipulator<float> f = 100.45;
    Manipulator<const char*> s("programming");
    std::cout << f.deduct(a) << ", ";
    std::cout << s.deduct(a);
    return 0;
}
				
			

Course Name : Programming In Modern C++ July 2023

Programming Assignment : Q2

Consider the following program. Fill in the blanks as per the instructions given below.
    • Fill in the blank at LINE-1 with appropriate template declaration for class DataSet.
    • Fill in the blank at LINE-2 with appropriate declaration of array arr.
    • Fill in the blank at LINE-3 with appropriate parameter / parameters for function operator=.
				
					#include <iostream>

template <typename T, int N>     // LINE-1
class DataSet {
    private:
         T arr[N];            // LINE-2
         int i;
    public:
        DataSet() : i(-1) { }
        void operator=(T data){ // LINE-3
            arr[++i] = data;
        }

void print() {
            for (int j = N - 1; j >= 0; j--)
                std::cout << arr[j] << " ";
        }
};
int main() {
    const int n = 3;
    DataSet<char, n> ds1;
    for (int i = 0; i < n; i++) {
        char j;
        std::cin >> j;
        ds1 = j;
    }
    DataSet<int, n> ds2;
    for (int i = 0; i < n; i++) {
        int j;
        std::cin >> j;
        ds2 = j;
    }
    ds1.print();
    ds2.print();
    return 0;
}
				
			

Course Name : Programming In Modern C++ July 2023

Programming Assignment : Q3

Consider the following program. Fill in the blanks as per the instructions given below:
   • Fill in the blank at LINE-1 with appropriate constructor for structure Stat.
   • Fill in the blank at LINE-2 with appropriate header declaration for functor.
   • Fill in the blank at LINE-3 with appropriate return statement.
				
					#include <iostream>

struct Stat {
    int s;
    Stat(int sum) : s(sum) {}     //LINE-1  
    
    double operator()(int* arr, int n){    //LINE-2   
 
        for(int i = 0; i < n; i++)
            s += arr[i];
        double a = (double)s / n;

        return a;                //LINE-3
    }
};

int main(){
    int a, b, c[10];
    std::cin >> a;
    for(int i = 0; i < a; i++){
        std::cin >> b;
        c[i] = b;
    }
    int sum = 0;
    Stat st(sum);
    double avg = st(c, a);
    std::cout << st.s << " " << avg;
    return 0;
}