[C language] Input and output a string into a two-dimensional array

#include<stdio.h>
#include<stdlib.h>

#define maxcount 1000000;

int main() {

    int row, column, count = 0;

    scanf_s("%d %d", &row, &column);

        // Memory allocation part
    char** matrix = (char**)malloc(sizeof(char*)*row);
    for (int i = 0; i < row; i++)
        matrix[i] = (char*)malloc(sizeof(char)*column);

    printf("%d\n", matrix[0][0]); // output for testing

        // Enter a string in a two-dimensional array matrix[i]
    for (int i = 0; i < row; i++) {
        scanf_s(" %s", matrix[i], sizeof(char)*column);
        printf("%c\n", matrix[i][0]); // output for testing
    }

    printf("%s", matrix[1]); // output for testing

        // Value Output
    for (int i = 0; i < row; i++) {
        printf("\n");
        for (int j = 0; j < column; j++)
            printf("%c ", matrix[i][j]);
    }
}

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