Are you looking for the Answers to **NPTEL An Introduction to Programming Through C++ Assignment 6? **This article will help you with the answer to the **Nation**** al Programme on Technology Enhanced Learning (NPTEL)** Course “

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**NPTEL An Introduction to Programming Through C++ Assignment 6**## What is An Introduction to Programming Through C++?

This course provides an introduction to problem solving and programming using the C++ programming language. The topics include:

- Basic programming notions. Control flow, variables and assignments statements, conditional execution, looping, function calls including recursion. Arrays and structures. Elementary aspects of classes. Heap memory.
- Program design. How human beings solve problems manually. Strategies for translating manual strategies to computer programs. Organizing large programs into units such as functions and classes. Introduction to assertions and invariants.
- Programming applications. Arithmetic on polynomials, matrices. Root finding. Sorting and searching. Design of editors and simulators, including graphical editors. Elementary animation. A rudimentary graphics system will be discussed.
- Standard Library of C++. The string, vector and map classes.

## CRITERIA TO GET A CERTIFICATE

Average assignment score = 25% of the average of best 8 assignments out of the total 12 assignments given in the course.

Exam score = 75% of the proctored certification exam score out of 100

Final score = Average assignment score + Exam score

**YOU WILL BE ELIGIBLE FOR A CERTIFICATE ONLY IF THE 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.**

** Below you can find the answers for NPTEL An Introduction to Programming Through C++ Assignment 6**

Assignment No. | Answers |
---|---|

An Intro to Programming C++ Assignment 1 | Click Here |

An Intro to Programming C++ Assignment 2 | Click Here |

An Intro to Programming C++ Assignment 3 | Click Here |

An Intro to Programming C++ Assignment 4 | Click Here |

An Intro to Programming C++ Assignment 5 | Click Here |

An Intro to Programming C++ Assignment 6 | Click Here |

An Intro to Programming C++ Assignment 7 | Click Here |

An Intro to Programming C++ Assignment 8 | Click Here |

## NPTEL An Introduction to Programming Through C++ Assignment 6 Answers:-

**Q1.** What is V(6), the number of poetic meters of total duration 6?

**Answer:** 13

Suppose I have a supply of red blocks (R) all of height 1 and blue blocks (B) all of height 3. I can stack the blocks one above the other to build a tower. For example, if I stack in the order RBR or BRR from bottom to top I will get towers of height 5. Let T(n) denote the number of towers possible of height n. Clearly T(1) is 1 because the only order possible is R.T(2) is 1 because the only possible order is RR.T(3) is 2, because the possible orders are RRR or B.

BR RB RRRR

**Q2.** What is T(4)?

**Answer:** 3

**Q3.** What is T(5)?

**Answer:** 4

**Q4. Using the same logic as in the lecture, you could say that the bottom most block can either be red or it can be blue. Following this logic, what is T(**n) equal to?

a) T(n-1) + T(n-2)

b) T(n-1) + T(n-2) + T(n-3)

c) T(n-1) + T(n-3)

d) T(n-2) + T(n-3)

**Answer:** c) T(n-1) + T(n-3)

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**Q5.** **What does the call f(100) return, if f is defined as follows?Int f(n){if (n == 0) return 0;else return f(n–1) + 2;} **

**Answer:** 200

**Q6.** **I will get an error if I execute s++ f1.cpp**

a) True

b) False

**Answer:** a) True

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**Q7.** **I will get an error if I execute s++ -c f2.cpp**

a) True

b) False

**Answer:** b) False

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**Q8.** **I will get an error if I execute s++ f1.cpp f3.cpp**

a) True

b) False

**Answer:** a) True

**Q9.** **What is the result of executing the following program, if the input given is 3? #include <simplecpp> #include <functional> double ssum(function<double(int)> f, int n){ double sum = 0; for(int i=0; i<n; i++) sum = sum + f(i); return sum; } int main(){ int n; cin >> n; cout << ss**um([](int i){return i*i;}, n)<<endl; }

**Answer:** 5

Consider the following program. #include <simplecpp> int f(int a, int b, int c=10, int d=20){return a+b+c+d;} int main(){ cout<<f(5,6,7,8)<<‘,'<<f(5,6,7)<<‘,'<<f(5,6); }

**Q10.** What is the first number printed?

**Answer:** 26

**Q11.** What is the second number printed?

**Answer:** 38

**Q12.** What is the third number printed?

**Answer:** 41

## Programming Assignment

**Q1.** Suppose there are two types of blocks: Red blocks (R) of height 1 and Blue blocks (B) of height 4. These blocks can be stacked one above the other to build a tower. You have to write a program that counts the number of distinct towers of a given height n that can be built using these 2 types of blocks.**Note:** 2 towers of the same height are called distinct if the order in which R and B blocks occur in them is different.

Write a recursive program that takes n and returns the number of distinct towers of height n.

**Code:-**

```
long int tower_count (int x) {
if(x <= 3)
return 1;
return tower_count(x-4) + tower_count(x-1);
}
main_program {
int n;
cin >> n;
cout << tower_count(n) << endl;
}
```

**Q2.** Given below is a main program with calls to a function inches. Given a distance measured in yards, feet and inches, the function is supposed toreturn the equivalent number of inches. In particular, given y, f, i as the values of the parameters yards, feet, inches, the function should returny*36+f*12+i. However, it is acceptable to call the function with just two arguments y, f, in which case they should be interpreted as yards and feet,and the value returned should be y*36+f*12. The function might also be called with a single argument y, in which case it should return y*36. Youhave to write the code for the function inches. Your code may implement inches using default values for the parameters or by overloading it. Youdo not need to give the main program. It will be added automatically. The main program is given below for your reference.

Note: You **don’t** need to write/copy the main program. You just need to write the inches function, without the main_program or any of theheader files. Ensure that the function is correctly named as inches.

main_program{

int y,f,i; cin >> y >> f >> i;

cout << inches(y,f,i) <<“,”<<inches(y,f) <<“,”<<inches(y) << endl;

}

**Code:-**

```
int inches(int y, int f = 0, int i = 0) {
int inch;
inch = y * 36 + f * 12 + i;
return inch;
}
```

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