Matrix Multiplication in C++

#include <iostream>

int main() {
    int rowsA, colsA, rowsB, colsB;

    // Input dimensions of the first matrix (A)
    std::cout << "Enter the number of rows and columns of matrix A: ";
    std::cin >> rowsA >> colsA;

    // Input dimensions of the second matrix (B)
    std::cout << "Enter the number of rows and columns of matrix B: ";
    std::cin >> rowsB >> colsB;

    if (colsA != rowsB) {
        std::cout << "Matrix multiplication is not possible. The number of columns in A must be equal to the number of rows in B." << std::endl;
        return 1; // Exit with an error code
    }

    // Initialize matrices A and B
    int A[rowsA][colsA], B[rowsB][colsB];

    // Input matrix A
    std::cout << "Enter elements of matrix A:" << std::endl;
    for (int i = 0; i < rowsA; ++i) {
        for (int j = 0; j < colsA; ++j) {
            std::cin >> A[i][j];
        }
    }

    // Input matrix B
    std::cout << "Enter elements of matrix B:" << std::endl;
    for (int i = 0; i < rowsB; ++i) {
        for (int j = 0; j < colsB; ++j) {
            std::cin >> B[i][j];
        }
    }

    // Initialize the result matrix (C) with zeros
    int C[rowsA][colsB] = {0};

    // Perform matrix multiplication
    for (int i = 0; i < rowsA; ++i) {
        for (int j = 0; j < colsB; ++j) {
            for (int k = 0; k < colsA; ++k) {
                C[i][j] += A[i][k] * B[k][j];
            }
        }
    }

    // Display the result matrix (C)
    std::cout << "Result matrix C:" << std::endl;
    for (int i = 0; i < rowsA; ++i) {
        for (int j = 0; j < colsB; ++j) {
            std::cout << C[i][j] << " ";
        }
        std::cout << std::endl;
    }

    return 0;
}