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Example : A c program to read & display the nine values in a two dimensional array having size 3×3.
#include<stdio.h>
#include<conio.h>
void main()
{
int x[3][3],i,j;
printf("Enter 9 values:-");
for(i=0;i<=2;i++)
{
for(j=0;j<=2;j++)
{
scanf("%d",&x[i][j]);
}
}
printf("\nThe nine values in two dimensional forms are :\n");
for(i=0;i<=2;i++)
{
for(j=0;j<=2;j++)
{
printf("%d\t",x[i][j]);
}
printf("\n");
}
getch();
}Example : A C program to read nine values & display only first and last values in a two dimensional array having size 3×3.
#include<stdio.h>
#include<conio.h>
void main()
{
int x[3][3],i,j;
printf("Enter nine no.:-\n");
for(i=0;i<3;i++)
{
for(j=0;j<3;j++)
{
scanf("%d",&x[i][j]);
}
}
printf("\nThe First and Last array values are :-\n");
printf("\nThe First value is = %d",x[0][0]);
printf("\nThe Last value is = %d",x[2][2]);
getch();
}Example : Write a program in C to display the addition of two matrices into third one.
#include<stdio.h>
#include<conio.h>
void main()
{
int x[3][3],y[3][3],z[3][3];
int i,j;
printf("Enter 9 values in the first matrix of size 3x3: \n");
for(i=0; i<3; i++)
{
for(j=0; j<3; j++)
{
scanf("%d", &x[i][j]);
}
}
printf("Enter 9 values in the second matrix of size 3x3: \n");
for(i=0; i<3; i++)
{
for(j=0; j<3; j++)
{
scanf("%d", &y[i][j]);
}
}
for(i=0; i<3; i++)
{
for(j=0; j<3; j++)
{
z[i][j] = x[i][j] + y[i][j];
}
}
printf("\n Adition of Two matrices are = \n");
for(i=0; i<3; i++)
{
for(j=0; j<3; j++)
{
printf("%d\t", z[i][j]);
}
printf("\n");
}
getch();
}Example : Write a program in C to display the subtraction of two matrices values into third one.
#include<stdio.h>
#include<conio.h>
void main()
{
int x[3][3],y[3][3],z[3][3];
int i,j;
printf("Enter 9 values in the first matrix of size 3x3: \n");
for(i=0; i<3; i++)
{
for(j=0; j<3; j++)
{
scanf("%d", &x[i][j]);
}
}
printf("Enter 9 values in the second matrix of size 3x3: \n");
for(i=0; i<3; i++)
{
for(j=0; j<3; j++)
{
scanf("%d", &y[i][j]);
}
}
for(i=0; i<3; i++)
{
for(j=0; j<3; j++)
{
z[i][j] = x[i][j] - y[i][j];
}
}
printf("\n Adition of Two matrices are = \n");
for(i=0; i<3; i++)
{
for(j=0; j<3; j++)
{
printf("%d\t", z[i][j]);
}
printf("\n");
}
getch();
}Example : Write a program in C to display the addition (sum total) of only odd numbers of a two dimensional array .
#include<stdio.h>
#include<conio.h>
void main()
{
int x[3][3],i,j,sum=0;
printf("Enter nine no.:-");
for(i=0;i<3;i++)
{
for(j=0;j<3;j++)
{
scanf("%d",&x[i][j]);
}
}
for(i=0; i<3; i++)
{
for(j=0; j<3; j++)
{
printf("%d\t",x[i][j]);
}
printf("\n");
}
printf("\nThe odd values are = ");
for(i=0;i<3;i++)
{
for(j=0;j<3;j++)
{
if(x[i][j]%2!=0)
{
printf("%d\t",x[i][j]);
sum=sum+x[i][j];
}
}
}
printf("\nSum of odd numbers are = %d\t",sum);
getch();
}Example : Write a program in C to display the largest and smallest value from a two dimensional array of size 3×3.
#include<stdio.h>
#include<conio.h>
void main()
{
int x[3][3],i,j,largest,smallest;
printf("Enter nine no.:-\n");
for(i=0;i<3;i++)
{
for(j=0;j<3;j++)
{
scanf("%d",&x[i][j]);
}
}
printf("\nThe two dimensional array values are :-\n");
for(i=0; i<3; i++)
{
for(j=0; j<3; j++)
{
printf("%d\t",x[i][j]);
}
printf("\n");
}
largest=x[0][0];
smallest=x[0][0];
for(i=0;i<3;i++)
{
for(j=0;j<3;j++)
{
if(largest < x[i][j])
{
largest = x[i][j];
}
if(smallest > x[i][j])
{
smallest = x[i][j];
}
}
}
printf("\nThe Largest value is = %d",largest);
printf("\nThe Smallest value is = %d",smallest);
getch();
}Example : Write a program in C to display the transpose form of matrix.
#include<stdio.h>
#include<conio.h>
void main()
{
int x[3][3],y[3][3];
int i,j;
printf("Enter 9 values in the first matrix of size 3x3: \n");
for(i=0; i<3; i++)
{
for(j=0; j<3; j++)
{
scanf("%d", &x[i][j]);
}
}
for(i=0; i<3; i++)
{
for(j=0; j<3; j++)
{
y[j][i] = x[i][j];
}
}
printf("\n The Matrix values are = \n");
for(i=0; i<3; i++)
{
for(j=0; j<3; j++)
{
printf("%d\t", x[i][j]);
}
printf("\n");
}
printf("\n Transpose of Matrix are = \n");
for(i=0; i<3; i++)
{
for(j=0; j<3; j++)
{
printf("%d\t", y[i][j]);
}
printf("\n");
}
getch();
}
NB : Transpose matrix is the matrix in which each row values of a normal matrix are seen in each column.Example : Write a program in C to display only second row values from a two dimensional array of size 3x 3.
#include<stdio.h>
#include<conio.h>
void main()
{
int x[3][3],i,j;
printf("Enter 9 values:-");
for(i=0;i<=2;i++)
{
for(j=0;j<=2;j++)
{
scanf("%d",&x[i][j]);
}
}
printf("\nOnly the Second Row values in two dimensional forms are :\n");
for(i=0;i<=2;i++)
{
for(j=0;j<=2;j++)
{
if(i==1)
{
printf("%d\t",x[i][j]);
}
}
printf("\n");
}
getch();
}Example : Write a program in C to display only third column values from a two dimensional array of size 3x 3.
#include<stdio.h>
#include<conio.h>
void main()
{
int x[3][3],i,j;
printf("Enter 9 values:-");
for(i=0;i<=2;i++)
{
for(j=0;j<=2;j++)
{
scanf("%d",&x[i][j]);
}
}
printf("\nOnly the Second Row values in two dimensional forms are :\n");
for(i=0;i<=2;i++)
{
for(j=0;j<=2;j++)
{
if(j==2)
{
printf("%d\t",x[i][j]);
}
}
printf("\n");
}
getch();
}Example : Write a program in C to display the addition of each row and each column values in a matrix.
#include<stdio.h>
#include<conio.h>
void main()
{
int x[3][3];
int i,j,sum;
printf("Enter 9 values in the first matrix of size 3x3: \n");
for(i=0; i<3; i++)
{
for(j=0; j<3; j++)
{
scanf("%d", &x[i][j]);
}
}
printf("\nThe Matrix values are =\n");
for(i=0; i<3; i++)
{
for(j=0; j<3; j++)
{
printf("%d\t", x[i][j]);
}
printf("\n");
}
printf("\nThe Addition of row values are =\n\n");
for(i=0; i<3; i++)
{
sum=0;
for(j=0; j<3; j++)
{
sum=sum+x[i][j];
}
printf("Sum of Row Elements are %d = %d\n", i+1, sum);
}
printf("\nThe Addition of column values are =\n\n");
for(i=0; i<3; i++)
{
sum=0;
for(j=0; j<3; j++)
{
sum=sum+x[j][i];
}
printf("Sum of Column elements are %d = %d\n", j+1, sum);
}
getch();
}Example : Write a program in c to display only the diagonal (both – left and right) values along with its sum of a matrix.
#include<stdio.h>
#include<conio.h>
void main()
{
int x[3][3];
int i,j,sum1=0,sum2=0;
printf("Enter 9 values in the first matrix of size 3x3: \n");
for(i=0; i<3; i++)
{
for(j=0; j<3; j++)
{
scanf("%d", &x[i][j]);
}
}
printf("\nThe Matrix values are \n");
for(i=0; i<3; i++)
{
for(j=0; j<3; j++)
{
printf("%d\t",x[i][j]);
}
printf("\n");
}
printf("\nThe first/main diagonal values are = ");
for(i=0; i<3; i++)
{
for(j=0; j<3; j++)
{
if(i==j)
printf("%d",x[i][j]);
sum1=sum1+x[i][j];
}
}
printf("\nThe second diagonal values are = ");
for(i=0; i<3; i++)
{
for(j=0; j<3; j++)
{
if(i+j==2)
printf("%d",x[i][j]);
sum2=sum2+x[i][j];
}
}
printf("\n\nThe first/main diagonal values sum are = %d\n",sum1);
printf("The second diagonal values sum are = %d",sum2);
getch();
}Example : Write a program in C to display all the values except diagonal (both left and right) along with its sum in a matrix.
#include<stdio.h>
#include<conio.h>
void main()
{
int x[3][3];
int i,j,sum1=0;
printf("Enter 9 values in the first matrix of size 3x3: \n");
for(i=0; i<3; i++)
{
for(j=0; j<3; j++)
{
scanf("%d", &x[i][j]);
}
}
printf("\nThe Matrix values are \n");
for(i=0; i<3; i++)
{
for(j=0; j<3; j++)
{
printf("%d\t",x[i][j]);
}
printf("\n");
}
printf("\nThe values except first/main and second diagonal are = ");
for(i=0; i<3; i++)
{
for(j=0; j<3; j++)
{
if(i!=j && i+j!=2)
{
printf(" %d ",x[i][j]);
sum1=sum1+x[i][j];
}
}
}
printf("\n\nThe sum of all the values except first/main and second diagonal of a matrix is = %d\n",sum1);
getch();
}Example : Write a program in C to display only common value present in the diagonal (both – left and right) in a matrix.
#include<stdio.h>
#include<conio.h>
void main()
{
int x[3][3];
int i,j;
printf("Enter 9 values in the matrix of size 3x3: \n");
for(i=0; i<3; i++)
{
for(j=0; j<3; j++)
{
scanf("%d", &x[i][j]);
}
}
printf("\nThe Matrix values are \n");
for(i=0; i<3; i++)
{
for(j=0; j<3; j++)
{
printf("%d\t",x[i][j]);
}
printf("\n");
}
printf("\nThe value common in both the diagonal is = ");
for(i=0; i<3; i++)
{
for(j=0; j<3; j++)
{
if(i==j && i+j==2)
{
printf(" %d ",x[i][j]);
}
}
}
getch();
}Example : Write a program in C to display only border values of a matrix having size 4×4.
#include<stdio.h>
#include<conio.h>
void main()
{
int x[4][4];
int i,j;
printf("Enter 16 values in the matrix of size 4x4: \n");
for(i=0; i<=3; i++)
{
for(j=0; j<=3; j++)
{
scanf("%d", &x[i][j]);
}
}
printf("\nThe Matrix values are \n");
for(i=0; i<=3; i++)
{
for(j=0; j<=3; j++)
{
printf("%d\t",x[i][j]);
}
printf("\n");
}
printf("\nThe border values of a matrix are = ");
for(i=0; i<=3; i++)
{
for(j=0; j<=3; j++)
{
if(i==0 || i==3 || j==0 || j==3)
{
printf(" %d ",x[i][j]);
}
}
}
getch();
}Example : Write a program in C to display only center/core (except border) values of a matrix having size 4×4.
#include<stdio.h>
#include<conio.h>
void main()
{
int x[4][4];
int i,j;
printf("Enter 16 values in the matrix of size 4x4: \n");
for(i=0; i<=3; i++)
{
for(j=0; j<=3; j++)
{
scanf("%d", &x[i][j]);
}
}
printf("\nThe Matrix values are \n");
for(i=0; i<=3; i++)
{
for(j=0; j<=3; j++)
{
printf("%d\t",x[i][j]);
}
printf("\n");
}
printf("\nThe border values of a matrix are = ");
for(i=0; i<=3; i++)
{
for(j=0; j<=3; j++)
{
if(i!=0 && i!=3&& j!=0 && j!=3)
{
printf(" %d ",x[i][j]);
}
}
}
getch();
} 
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