1. Create an array of 100 random numbers in the range of 1…999, write a function
ID: 3688214 • Letter: 1
Question
1. Create an array of 100 random numbers in the range of 1…999, write a function for each of the following processes. In building the array, if 3 or 7 evenly divide the random number, store it as a negative number.
a. Print the array ten values to a line. Make sure that the values are aligned in rows.
b. Return a count of the number of even values
c. Return the sum of all values in the array
2. Create a two dimensional array (size 10 X 10). Fill this two dimensional array with the values from the above single dimensional array. Determine the maximum value in each row. Display the two-dimensional array and the maximum of each row.
3. Repeat number 2 above but this time instead of 10 X 10 array, prompt the user for the size of the row and column, allow user to fill in the values and display the array.(Hint: Use pointers and dynamic memory allocation )
Explanation / Answer
#include<iostream.h>
#include<stdlib.h>
void print(int a[],int n)
{
int s=0,e=0,c=0;
for(int i=0;i<100;i++)
{
cout<<a[i]<<" ";
c++;
if(c%10==0)
cout<<endl;
s=s+a[i];
if(a[i]%2==0)
e++;
}
cout<<"Count of even numbers="<<e<<endl;
cout<<"sum of values ="<<s;
}
void max_2d(int a[], int n)
{
int c=0,i,max, b[10][10],j;
max=0;
for(i=0;i<10;i++)
{
for(j=0;j<10;j++)
{
b[i][j]=a[c];
c++;
}
}
for(i=0;i<10;i++)
{
for(j=0;j<10;j++)
{
cout<<b[i][j]<<" ";
}
cout<<endl;
}
for(i=0;i<10;i++)
{
for(j=0;j<10;j++)
{
if(b[i][j]>max;
max=[i][j];
}
cout<<"Maximum value in row is"<<max<<endl;
max=0
}
}
void main()
{
int n,a[100],i;
for(i=0;i<100;i++)
{
n=rand()%999+1;
if(n%3==0 || n%7==0)
a[i]=-n;
else
a[i]=n;
}
print(a,100);
max_2d(a,100);
}
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