Matrix works

#include <stdio.h>
#include <conio.h>

int **allocateMatrix(int nRows, int nCols)
{
    int **matrix = new int*[nRows];
    for (int i = 0; i < nRows; i++)
        matrix[i] = new int[nCols];
    return matrix;
}

void inputMatrix(int **matrix, int nRows, int nCols)
{
    for (int i = 0; i < nRows; i++)
        for (int j = 0; j < nCols; j++)
            scanf("%d", &matrix[i][j]); // "%d", not "%d " !!!
}

void outputMatrix(int **matrix, int nRows, int nCols)
{
    for (int i = 0; i < nRows; i++)
    {
        for (int j = 0; j < nCols; j++)
            printf("%d ", matrix[i][j]);
        printf("\n");
    }
}

void freeMatrix(int **matrix, int nRows)
{
    for (int i = 0; i < nRows; i++)
        delete [] matrix[i];
    delete [] matrix;
}

void main()
{
    int nRows = 0, nCols = 0;
    printf("Input number of rows and columns: ");
    scanf("%d%d", &nRows, &nCols);

    int **matrix = allocateMatrix(nRows, nCols);
    inputMatrix(matrix, nRows, nCols);
    printf("\n");
    outputMatrix(matrix, nRows, nCols);
    freeMatrix(matrix, nRows);

    getch();
}