A one-dimensional array (covered in Post 3) is a single row of values. A two-dimensional array extends this into a grid — rows and columns — perfect for representing matrices, tables, and grids. This is Post 4 of the Unit II series. Declaration and Initialization int matrix[3][4]; // 3 rows, 4 columns — 12 ints … Read more
This program searches for a given element in a 2-D array and displays its position (row and column) if found. C Program #include <stdio.h> int main() { int a[10][10], m, n, i, j, key, found = 0; printf(“Enter number of rows (m) and columns (n): “); scanf(“%d %d”, &m, &n); printf(“Enter elements of the matrix:\n”); … Read more
This program finds the transpose of a given 2-D matrix (rows become columns and columns become rows). C Program #include <stdio.h> int main() { int a[10][10], transpose[10][10]; int m, n, i, j; printf(“Enter number of rows (m) and columns (n): “); scanf(“%d %d”, &m, &n); printf(“Enter elements of the matrix:\n”); for (i = 0; i … Read more
This program adds two 2-D matrices of order m x n and displays the resultant matrix. C Program #include <stdio.h> int main() { int a[10][10], b[10][10], sum[10][10]; int m, n, i, j; printf(“Enter number of rows (m) and columns (n): “); scanf(“%d %d”, &m, &n); printf(“Enter elements of first matrix:\n”); for (i = 0; i … Read more
This program checks whether a given n x n matrix is a symmetric matrix — meaning the matrix equals its own transpose — and displays the result along with the original matrix. C Program #include <stdio.h> int main() { int n, i, j; int a[10][10]; int isSymmetric = 1; printf(“Enter order of square matrix (n): … Read more