Please run and test the code please. Thank you very much. Write down a C program

Question

Please run and test the code please. Thank you very much.

Write down a C program to generate a matrix (2-D Array) of integers in the range 1 to 100. The program should take the matrix dimensions (number of rows and number of columns) from the user. Print the matrix in such a way that only the prime numbers are printed. Print the character ‘*’ for the non-prime numbers. [Note that 1 is not a prime number].

Example: if the generated matrix is: 1 2 3 4 5 6 7 8 9 10 11 12

Print: * 2 3 * 5 * 7 * * * 11 *

Explanation / Answer

#include <stdio.h>
#include <stdlib.h>
#include <conio.h>

int main() {

int row,col;
int i,j,k=1,c,flag,l,m;
int arr[100][100];
clrscr();

   printf("Enter the No of Rows in matrix ");
   scanf("%d",&row);

   printf(" Enter the No of Columns in matrix ");
   scanf("%d",&col);

for (i = 0; i < row; i++)
{
for (j = 0; j < col; j++)
     {
   arr[i][j] = k;
   k++;
}
}

   printf("generated matrix is :");

for (i = 0; i < row; i++)
{
for (j = 0; j < col; j++)
     {
  printf(" %d",arr[i][j]);
}
}

printf(" Print:");

for (i = 0; i < row; i++)
{
for (j = 0; j < col; j++)
     {
   m = arr[i][j];
   flag = 0;
  
   if( m == 1)
   {
    flag = 1;
   }
  
  for(l=2; l<=m/2; ++l)
   {
    // condition for nonprime number
    if(m%l==0)
    {
     flag=1;
     break;
    }
   }

   if (flag==0)
   {
    printf("% d",m);
   }
   else
   {
   printf(" *");
   }

}
}

getch();
return 0;
}

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