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C program to interchange the elements in multi dimensional matrix
/* Write a C program to accept a matrix of order M x N and store its elements and interchange the main diagonal elements of the matrix with that of the secondary diagonal elements */
#include <stdio.h> void main () { static int ma[10][10]; int i,j,m,n,a; printf ("Enetr 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",&ma[i][j]); } } printf ("The given matrix is \n"); for (i=0;i<m;++i) { for (j=0;j<n;++j) { printf (" %d",ma[i][j]); } printf ("\n"); } for (i=0;i<m;++i) { a = ma[i][i]; ma[i][i] = ma[i][m-i-1]; ma[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",ma[i][j]); } printf ("\n"); } } else printf ("The givan order is not square matrix\n"); }
Output
Enetr the order of the matix 3 3 Enter the co-efficients of the matrix 1 2 3 4 5 6 7 8 9 The given matrix is 1 2 3 4 5 6 7 8 9 THe matrix after changing the main diagonal & secondary diagonal 3 2 1 4 5 6 9 8 7
