Matrix Program!!

This Program helps us to add a 3*3 matrix. The concept of 'arrays'is used here. For loops are used to get the inputs and print them. To add matrix of order n*n change all the 3 to n.

PROGRAM:

#include <stdio.h>
#include<conio.h>
void main()
 {
  int a[3][3],b[3][3],c[3][3];
  int i,j;
  clrscr();
  printf("\nEnter the first matrix:");
  for(i=0;i<3;i++)
    for(j=0;j<3;j++)
      scanf("%d",&a[i][j]);
  printf("\nThe first matrix is");
  for(i=0;i<3;i++)
   {
    printf("\n");
    for(j=0;j<3;j++)
     printf ("\t%d",a[i][j]);
   }
  printf ("\nEnter the second matrix is");
  for(i=0;i<3;i++)
    for(j=0;j<3;j++)
      scanf("\t%d",&b[i][j]);
  printf("\nThe Second Matrix is:");
  for(i=0;i<3;i++)
   {
    printf("\n");
    for(j=0;j<3;j++)
     printf ("\t%d",b[i][j]);
   }
  for(i=0;i<3;i++)
    for(j=0;j<3;j++)
      c[i][j]=a[i][j]+b[i][j];
  printf("\nThe Resultant matrix is:");
  for(i=0;i<3;i++)
   {
    printf("\n");
    for(j=0;j<3;j++)
     printf ("\t%d",c[i][j]);
   }
  getch();
}

Factorial Program!!

This program computes the factorial of the given number and displays it. The control structure 'for' is used to determine the factorial. When there is a number of iteration is carried out till a desired output or condition is solved , we go for the 'for' statement.

LOGIC:
 Factroial of 'n' is denoted as 'n!' 

 

PROGRAM:
#include<stdio.h>
#include<conio.h>
void main()
{
int i,j,n;
j=1;
clrscr();
printf("Enter the n value:");
scanf("%d",&n);
for(i=1;i<=n;i++)
{
j=j*i;
}
printf("\n Factorial of %d is :%d",n,j);
getch();
}