// column-matrix: delete row on index and print
#include <stdio.h>
#include <stdlib.h>

int **init_matrix(int row, int column)
{
	int **matrix = NULL;
	matrix = malloc(column * sizeof(int*));
	if (!matrix)
		return NULL;
	for(int i = 0; i < column; i++)
	{
		matrix[i] = malloc(row * sizeof(int));
		if (!matrix[i])
		{
			free(matrix);
			return NULL;
		}
	}
	for(int i = 0; i < row; i++)
	{
		for(int j = 0; j < column; j++)
			matrix[i][j] = 1;
	}
	return matrix;
}
void delete_row(int ***my_matrix, int num_row, int *row, int column)
{
	for (int i = 0; i < column; i++)
	{
		for (int j = num_row; j < (*row - 1); j++)
		{
			(*my_matrix)[i][j] = (*my_matrix)[i][j + 1];
		}
		(*my_matrix)[i] = realloc((*my_matrix)[i], (*row - 1) * sizeof(int*));
	}
	*row = *row - 1;
}

void print_matrix(int **my_matrix, int row, int column)
{
	for (int i = 0; i < row; i++)
	{
		for (int j = 0; j < column; j++)
		{
			printf("%d ", my_matrix[i][j]);
		}
		printf("\n");
	}
	printf("\n");
}

int main()
{
	int **matrix2 = NULL;
	int row = 2;
	int column = 2;
	matrix2 = init_matrix(row, column);
	print_matrix(matrix2, row, column);
	delete_row(&matrix2, 0, &row, column);
	print_matrix(matrix2, row, column);
	for(int i = 0; i < column; i++)
		free(matrix2[i]);
	free(matrix2);
}