Interchange any two Rows & Columns in the given Matrix
#include
#include
void main()
{
static int array1[10][10], array2[10][10];
int i, j, m, n, a, b, c, p, q, r;
clrscr();
printf("Enter the order of the matrix \n");
scanf("%d %d", &m, &n);
printf("Enter the co-efficents of the matrix \n");
for (i = 0; i < m; ++i)
{
for (j = 0; j < n; ++j)
{
scanf("%d,", &array1[i][j]);
array2[i][j] = array1[i][j];
}
}
printf("Enter the numbers of two rows to be exchanged \n");
scanf("%d %d", &a, &b);
for (i = 0; i < m; ++i)
{
c = array1[a - 1][i];
array1[a - 1][i] = array1[b - 1][i];
array1[b - 1][i] = c;
}
printf("Enter the numbers of two columns to be exchanged \n");
scanf("%d %d", &p, &q);
printf("The given matrix is \n");
for (i = 0; i < m; ++i)
{
for (j = 0; j < n; ++j)
printf(" %d", array2[i][j]);
printf("\n");
}
for (i = 0; i < n; ++i)
{
r = array2[i][p - 1];
array2[i][p - 1] = array2[i][q - 1];
array2[i][q - 1] = r;
}
printf("The matix after interchanging the two rows(in the original matrix) \n");
for (i = 0; i < m; ++i)
{
for (j = 0; j < n; ++j)
{
printf(" %d", array1[i][j]);
}
printf("\n");
}
printf("The matix after interchanging the two columns(in the original matrix) \n");
for (i = 0; i < m; ++i)
{
for (j = 0; j < n; ++j)
printf(" %d", array2[i][j]);
printf("\n");
}
getch();
}
Output
Enter the order of the matrix
2 2
Enter the co-efficents of the matrix
34 70
45 90
Enter the numbers of two rows to be exchanged
1 2
Enter the numbers of two columns to be exchanged
1 2
The given matrix is
34 70
45 90
The matix after interchanging the two rows(in the original matrix)
45 90
34 70
The matix after interchanging the two columns(in the original matrix)
70 34
90 45
Accept
a Matrix of Order MxN & Interchange the Diagonals
#include
#include
void main ()
{
static int array[10][10];
int i, j, m, n, a;
clrscr();
printf("Enter the order of the matix \n");
scanf("%d %d", &m, &n);
if (m == n)
{
printf("Enter the co-efficients of the matrix\n");
for (i = 0; i < m; ++i)
{
for (j = 0; j < n; ++j)
{
scanf("%dx%d", &array[i][j]);
}
}
printf("The given matrix is \n");
for (i = 0; i < m; ++i)
{
for (j = 0; j < n; ++j)
{
printf(" %d", array[i][j]);
}
printf("\n");
}
for (i = 0; i < m; ++i)
{
a = array[i][i];
array[i][i] = array[i][m - i - 1];
array[i][m - i - 1] = a;
}
printf("The matrix after changing the \n");
printf("main diagonal & secondary diagonal\n");
for (i = 0; i < m; ++i)
{
for (j = 0; j < n; ++j)
{
printf(" %d", array[i][j]);
}
printf("\n");
}
}
else
printf("The given order is not square matrix\n");
getch();
}
Output
Enetr the order of the matix
2 2
Enter the co-efficients of the matrix
25 30
78 43
The given matrix is
25 30
78 43
The matrix after changing the
main diagonal & secondary diagonal
30 25
43 78
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