Write a program for display values reverse order from an array using a pointer || C Lab Program

 WAP_C05: Write a program for display values reverse order from an array using a pointer.|| Arrays, Pointers and Functions

WAP_C05: C Lab Program

//display values reverse order from an array using a pointer. #include <stdio.h> int main() {     int n, sum = 0, arr[10];     // Input the number of elements     printf("Enter the number of elements: ");     scanf("%d", &n);     // Input the array elements     printf("Enter the elements:\n");     for (int i = 0; i < n; i++) {         scanf("%d", &arr[i]);     }         int *ptr = arr;          // Display the array elements in reverse order     printf("The elements in reverse order are:\n");     for (int i = n-1; i >= 0; i--) {       printf("%2d", *(ptr+i));     }     return 0; }

OUTPUT

Enter the number of elements: 5 Enter the elements: 2 4 6 8 10 The elements in reverse order are: 10 8 6 4 2

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Write a program for reading elements using a pointer into an array and display the values using the array || C Lab Program

 WAP_C04 Write a program for reading elements using a pointer into an array and display the values using the array.|| Arrays, Pointers and Functions

WAP_C04: C Lab Program

//reading elements using a pointer into an array and display the values using the array. #include <stdio.h> int main() {     int n, sum = 0, arr[10];     // Input the number of elements     printf("Enter the number of elements: ");     scanf("%d", &n);     int *ptr = arr;          printf("Enter the elements:\n");     for (int i = 0; i < n; i++) {         // Read element using the pointer         scanf("%d", ptr + i);  // Pointer arithmetic to read the value     }     // Display the values using the array     printf("The elements are:\n");     for (int i = 0; i < n; i++) {         printf("%d ", arr[i]);  // Display elements using the array     }     return 0; }

OUTPUT

Enter the number of elements: 5 Enter the elements: 2 4 6 8 10 The elements are: 2 4 6 8 10

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Write a program that uses functions to perform Multiplication of two matrices || C Lab Program

 WAP_C03: Write a C program that uses functions to perform Multiplication of two matrices.|| Arrays, Pointers and Functions

WAP_C03: C Lab Program

// Multiplication of Two Matrices #include <stdio.h> // Function to perform matrix multiplication void multiplyMatrices(int A[10][10], int B[10][10], int result[10][10], int rowA, int colA, int rowB, int colB) {     int i,j,k;     for (i = 0; i < rowA; i++) {         for (j = 0; j < colB; j++) {             result[i][j] = 0; // Initializing the result matrix with 0             for (k = 0; k < colA; k++) {                 result[i][j] += A[i][k] * B[k][j];             }         }     } } // Function to input matrix elements void inputMatrix(int matrix[10][10], int rows, int cols) {     int i,j;     printf("Enter elements of the matrix (%dx%d):\n", rows, cols);     for (i = 0; i < rows; i++) {         for (j = 0; j < cols; j++) {             scanf("%d", &matrix[i][j]);         }     } } // Function to display a matrix void displayMatrix(int matrix[10][10], int rows, int cols) {     int i,j;     for (i = 0; i < rows; i++) {         for (j = 0; j < cols; j++) {             printf("%d ", matrix[i][j]);         }         printf("\n");     } } int main() {     int A[10][10], B[10][10], result[10][10];     int rowA, colA, rowB, colB;     // Input matrix dimensions     printf("Enter the number of rows and columns for Matrix A: ");     scanf("%d %d", &rowA, &colA);     printf("Enter the number of rows and columns for Matrix B: ");     scanf("%d %d", &rowB, &colB);     // Check if multiplication is possible (columns of A must be equal to rows of B)     if (colA != rowB) {         printf("Matrix multiplication is not possible. The number of columns of A must be equal to the number of rows of B.\n");         return 1; // Exit the program if multiplication is not possible     }     // Input matrices A and B     printf("Input matrix A:\n");     inputMatrix(A, rowA, colA);     printf("Input matrix B:\n");     inputMatrix(B, rowB, colB);     // Perform matrix multiplication     multiplyMatrices(A, B, result, rowA, colA, rowB, colB);     // Display the result     printf("\nMatrix A:\n");     displayMatrix(A, rowA, colA);     printf("\nMatrix B:\n");     displayMatrix(B, rowB, colB);     printf("\nResultant Matrix (A * B):\n");     displayMatrix(result, rowA, colB);     return 0; }

OUTPUT

Enter the number of rows and columns for Matrix A: 3 3 Enter the number of rows and columns for Matrix B: 3 3 Input matrix A: Enter elements of the matrix (3x3): 1 2 3 4 5 6 7 8 9 Input matrix B: Enter elements of the matrix (3x3): 1 0 0 0 1 0 0 0 1 Matrix A: 1  2  3 4  5  6 7  8  9 Matrix B: 1  0  0 0  1  0 0  0  1 Resultant Matrix (A * B): 1  2  3 4  5  6 7  8  9

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