Assignment 2 CS125: Write A C Program To Perform

Assignment 2 Cs125the Aim Is To Write A C Program To Perform The Fo

Assignment 2 CS125 The aim is to write a C++ program to perform the following: Display a menu having the following options: 1: Compute the scalar product of two arrays A(N) and B(N) 2: Compute S= (min+max)/sum of an array A(N) 3: Compute the difference of two matrices 4: input N floats, compute their squares, and store them in a file A. Define what are the functions we can use, with the input and output for each one. B. Draw the flowchart of each function and the flowchart for the main function C. Write the corresponding C++ program.

Paper For Above instruction

The objective of this assignment is to develop a comprehensive C++ program that provides an interactive menu to perform various fundamental numerical and matrix operations. These operations include computing the scalar product of two arrays, calculating a specific ratio involving minimum, maximum, and sum values of an array, finding the difference between two matrices, and processing a set of floating-point numbers by squaring them and storing the results in a file. The assignment encompasses designing and defining functions with clear input and output parameters, illustrating flowcharts for these functions as well as the main program flow, and implementing the complete C++ code to realize these functionalities.

Function Definitions and Their Inputs/Outputs

Four primary functions are essential for this program. The first function computes the scalar product of two arrays, taking two arrays and their size as input, outputting the scalar product as a float or double. The second function processes a single array to determine the sum, minimum, and maximum values, then computes the ratio (min + max)/sum, returning the computed ratio. The third function calculates the difference between two matrices, accepting two matrices and their dimensions as input, and returning a new matrix representing their element-wise difference. The fourth function takes an integer N, reads N floating-point numbers from the user, computes their squares, and writes these squared values to a file, with no return value as the operation is file-based.

Flowcharts of Functions and Main Program

Flowcharts are essential visual tools to understand the logic flow. For the scalar product function, the flowchart begins with input prompts for two arrays, followed by a loop summing pairwise products, leading to outputting the result. The min-max-sum ratio function flows from inputting the array, calculating sum, min, and max, then computing and returning the ratio. Matrix subtraction involves inputting matrices, looping through elements to subtract, and storing the results. The file operation flow involves inputting N, reading numbers, computing squares within a loop, and writing the results to a file.

The main function flowchart integrates these by presenting a menu, accepting user choices, invoking corresponding functions, and looping until exit. Each menu option is associated with specific function calls, and proper error handling ensures robust interaction.

Complete C++ Program Implementation

Below is the full C++ code implementing all the specified functionalities:

include <iostream>
include <fstream>
include <limits>
using namespace std;
// Function prototypes
double computeScalarProduct(const double arrA[], const double arrB[], int size);
double computeArrayRatio(const double arr[], int size);
void computeMatrixDifference(const int rows, const int cols, int matrixA[][10], int matrixB[][10], int resultMatrix[][10]);
void processAndStoreFloats(int N);
int main() {
int choice;
do {
cout << "\nMenu:\n";
cout << "1. Compute the scalar product of two arrays\n";
cout << "2. Compute S = (min + max)/sum of an array\n";
cout << "3. Compute the difference of two matrices\n";
cout << "4. Input N floats, compute their squares, and store in a file\n";
cout << "5. Exit\n";
cout << "Enter your choice: ";
cin >> choice;
switch (choice) {
case 1: {
int N;
cout << "Enter size of arrays: ";
cin >> N;
double arrA[N], arrB[N];
cout << "Enter elements of array A:\n";
for (int i = 0; i < N; ++i) {
cin >> arrA[i];
}
cout << "Enter elements of array B:\n";
for (int i = 0; i < N; ++i) {
cin >> arrB[i];
}
double scalarProd = computeScalarProduct(arrA, arrB, N);
cout << "Scalar product: " << scalarProd << endl;
break;
}
case 2: {
int N;
cout << "Enter size of the array: ";
cin >> N;
double arr[N];
cout << "Enter array elements:\n";
for (int i = 0; i < N; ++i) {
cin >> arr[i];
}
double ratio = computeArrayRatio(arr, N);
cout << "Computed S = (min + max)/sum: " << ratio << endl;
break;
}
case 3: {
int rows, cols;
cout << "Enter number of rows: ";
cin >> rows;
cout << "Enter number of columns: ";
cin >> cols;
int matrixA[10][10], matrixB[10][10], resultMatrix[10][10];
cout << "Enter elements of matrix A:\n";
for (int i = 0; i < rows; ++i) {
for (int j = 0; j < cols; ++j) {
cin >> matrixA[i][j];
}
}
cout << "Enter elements of matrix B:\n";
for (int i = 0; i < rows; ++i) {
for (int j = 0; j < cols; ++j) {
cin >> matrixB[i][j];
}
}
computeMatrixDifference(rows, cols, matrixA, matrixB, resultMatrix);
cout << "Resulting matrix after subtraction:\n";
for (int i = 0; i < rows; ++i) {
for (int j = 0; j < cols; ++j) {
cout << resultMatrix[i][j] << " ";
}
cout << "\n";
}
break;
}
case 4: {
int N;
cout << "Enter number of floats: ";
cin >> N;
processAndStoreFloats(N);
cout << "Squares computed and stored in 'squares.txt'.\n";
break;
}
case 5:
cout << "Exiting the program.\n";
break;
default:
cout << "Invalid choice. Please try again.\n";
}
} while (choice != 5);
return 0;
}
// Function to compute scalar product
double computeScalarProduct(const double arrA[], const double arrB[], int size) {
double sum = 0.0;
for (int i = 0; i 
sum += arrA[i] * arrB[i];
}
return sum;
}
// Function to compute ratio (min + max)/sum of array
double computeArrayRatio(const double arr[], int size) {
double minVal = numeric_limits::max();
double maxVal = numeric_limits::lowest();
double sum = 0.0;
for (int i = 0; i 
if (arr[i] 
if (arr[i] > maxVal) maxVal = arr[i];
sum += arr[i];
}
if (sum == 0) {
cerr << "Sum of array is zero. Cannot compute ratio.\n";
return 0;
}
return (minVal + maxVal) / sum;
}
// Function to compute element-wise difference of two matrices
void computeMatrixDifference(int rows, int cols, int matrixA[][10], int matrixB[][10], int resultMatrix[][10]) {
for (int i = 0; i < rows; ++i) {
for (int j = 0; j < cols; ++j) {
resultMatrix[i][j] = matrixA[i][j] - matrixB[i][j];
}
}
}
// Function to input N floats, compute their squares, and store in a file
void processAndStoreFloats(int N) {
ofstream outfile("squares.txt");
if (!outfile) {
cerr << "Error opening file for writing.\n";
return;
}
for (int i = 0; i 
double num;
cout << "Enter number " << (i + 1) << ": ";
cin >> num;
double square = num * num;
outfile << square << "\n";
}
outfile.close();
}

Conclusion

This program effectively consolidates critical computational operations into a menu-driven interface, facilitating dynamic user interaction. By defining dedicated functions with precise input and output parameters, it adheres to modular programming principles, making the code clear, maintainable, and extendable. The inclusion of flowcharts, although not depicted here, aids in visualizing program logic, ensuring proper implementation of each step. The program demonstrates foundational programming skills vital for more complex software development tasks involving numerical computations and data management.

References

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• ISO/IEC 14882:2011, Programming Languages — C++. International Organization for Standardization.
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