CodeAlpha_C_Projects/CodeAlpha_MatrixOperations.c at main · Anirudh-180707/CodeAlpha_C_Projects · GitHub

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#include <stdio.h>

void inputMatrix(int rows, int cols, int matrix[10][10]) {
    int i, j;
    for(i = 0; i < rows; i++) {
        for(j = 0; j < cols; j++) {
            scanf("%d", &matrix[i][j]);
        }
    }
}

void displayMatrix(int rows, int cols, int matrix[10][10]) {
    int i, j;
    for(i = 0; i < rows; i++) {
        for(j = 0; j < cols; j++) {
            printf("%d\t", matrix[i][j]);
        }
        printf("\n");
    }
}

void addMatrices(int rows, int cols, int A[10][10], int B[10][10]) {
    int C[10][10];
    int i, j;

    for(i = 0; i < rows; i++) {
        for(j = 0; j < cols; j++) {
            C[i][j] = A[i][j] + B[i][j];
        }
    }

    printf("\nResultant Matrix:\n");
    displayMatrix(rows, cols, C);
}

void multiplyMatrices(int r1, int c1, int r2, int c2,
                      int A[10][10], int B[10][10]) {
    int C[10][10];
    int i, j, k;

    for(i = 0; i < r1; i++) {
        for(j = 0; j < c2; j++) {
            C[i][j] = 0;
            for(k = 0; k < c1; k++) {
                C[i][j] += A[i][k] * B[k][j];
            }
        }
    }

    printf("\nResultant Matrix:\n");
    displayMatrix(r1, c2, C);
}

void transposeMatrix(int rows, int cols, int A[10][10]) {
    int T[10][10];
    int i, j;

    for(i = 0; i < rows; i++) {
        for(j = 0; j < cols; j++) {
            T[j][i] = A[i][j];
        }
    }

    printf("\nTranspose Matrix:\n");
    displayMatrix(cols, rows, T);
}

int main() {
    int choice;
    int A[10][10], B[10][10];
    int r1, c1, r2, c2;

    printf("1. Matrix Addition\n");
    printf("2. Matrix Multiplication\n");
    printf("3. Matrix Transpose\n");
    printf("Enter your choice: ");
    scanf("%d", &choice);

    switch(choice) {

        case 1:
            printf("Enter rows and columns: ");
            scanf("%d%d", &r1, &c1);

            printf("Enter Matrix A:\n");
            inputMatrix(r1, c1, A);

            printf("Enter Matrix B:\n");
            inputMatrix(r1, c1, B);

            addMatrices(r1, c1, A, B);
            break;

        case 2:
            printf("Enter rows and columns of Matrix A: ");
            scanf("%d%d", &r1, &c1);

            printf("Enter rows and columns of Matrix B: ");
            scanf("%d%d", &r2, &c2);

            if(c1 != r2) {
                printf("Matrix multiplication not possible.\n");
            } else {
                printf("Enter Matrix A:\n");
                inputMatrix(r1, c1, A);

                printf("Enter Matrix B:\n");
                inputMatrix(r2, c2, B);

                multiplyMatrices(r1, c1, r2, c2, A, B);
            }
            break;

        case 3:
            printf("Enter rows and columns: ");
            scanf("%d%d", &r1, &c1);

            printf("Enter Matrix:\n");
            inputMatrix(r1, c1, A);

            transposeMatrix(r1, c1, A);
            break;

        default:
            printf("Invalid choice!");
    }

    return 0;
}