# CS201 - Introduction to Programming -- Assignment No.2 - Fall 2017 - Solution

Objectives:
To enable students to write, compile and execute a program in DevC++. Moreover to familiarize students with  the concepts of:

• If else structure
• Loops
• Passing array to a function
• Multidimensional array declaration
• Multidimensional array manipulation

Assignment:
Write a program that will generate random numbers and that numbers will be stored in a two-dimensional array. Then display the generated values on the screen and then also print the even numbers from the generated array elements.

First of all, you are required to generate random numbers from 1 to 500. For this, you are required to create a function named as “generateArray. The generateArray will load two- dimensional array with random numbers from 1to 500. The size of the two-dimensional array will be 7*7.

Defined a function named as “showArray(), which will display the elements of the two- dimensional array on the screen. See the sample output.

The final task is to find the even numbers in this array and display it on the console. For this purpose create a function findEvenNumber().

Solution:

#include<iostream>
#include<stdlib.h>
#include<time.h>
using namespace std;

// functions definations
void generateArray(int inArr)
{
for (int i = 0; i<7; i++)//rows
{
for (int j = 0; j<7; j++)//columns
{
inArr[i][j] = rand() % 500 + 1; //Random Values Generation
}
}
}

void showArray(int inArr)
{
for (int i = 0; i<7; i++)//rows
{
for (int j = 0; j<7; j++)//columns
{
cout << inArr[i][j] << "\t"; // Output on Console
}
cout << "\n";
}
}

void evenArray(int inArr)
{
for (int i = 0; i<7; i++)
{
for (int j = 0; j<7; j++)
{
if (inArr[i][j] % 2 == 0)
{
cout << inArr[i][j] << "\t"; // Output Even Values on console
}
}
}
}
// -- main body
main()
{
int randarr;
srand(time(NULL));// Null Time Randow Initialization
// Array Generation
generateArray(randarr);
// Raw Array Output
cout << "Array Element......\n\n";
showArray(randarr);
// Even Array output
cout << "\n\nEven Array......\n\n";
evenArray(randarr);
// pause console screen
cout << "\n\n";
system("pause");
}