lab_05_0_extra_task

#include <stdio.h>
#include <math.h>

#define N 10

int input_row(int array[], int len, int row);
int len_of_num(int num);
void print_array_cutted(int array[], int len, int to_cut);
void print_array_wo_middle(int array[], int len, int elements);
void print_array(int array[], int len);

typedef int matr_t[N][N];

int main(void)
{
    matr_t matrix;
    int row, coll;
    int i;
    //int j;

    printf("Input number of rows ");
    if ((scanf("%i", &row) != 1) || (row <= 0) || (row > 10))
    {
        printf("Wrong input!");
        return 1;
    }

    printf("Input number of collumns ");
    if ((scanf("%i", &coll) != 1) || (coll <= 0) || (coll > 10))
    {
        printf("Wrong input!");
        return 1;
    }

    for (i = 0; i < row; i++)
    {
        if (input_row(matrix[i], coll, i))
        {
            printf("Wrong input!");
            return 1;
        }
    }

    printf("\n\nInitial matrix:");
    for (i = 0; i < row; i++)
    {
        printf("\n");
        print_array(matrix[i], coll);
    }

    int how_m_to_insert [row];
    int coll_count = coll;

    for (i = 0; i < row / 2; i++)
    {
        if (coll_count > 2)
        {
            how_m_to_insert[i] = coll_count;
            how_m_to_insert[row - 1 - i] = coll_count;
            coll_count -= 2;
        }
        else
        {
            how_m_to_insert[i] = coll_count;
            how_m_to_insert[row - 1 - i] = coll_count;
        }
    }

    if (row % 2) how_m_to_insert[row / 2] = coll_count;
    printf("\n\nProcessed Matrix:\n");

    for (i = 0; i < row; i++)
    {
        print_array_cutted(matrix[i], coll, (coll - how_m_to_insert[i]));
        printf("\n");
    }

    //int how_m_to_insert [row];
    //int coll_count = 2;
    coll_count = 2;


    for (i = 0; i < row / 2; i++)
    {
        if (coll_count < coll)
        {
            how_m_to_insert[i] = coll_count;
            how_m_to_insert[row - 1 - i] = coll_count;
            coll_count += 2;
        }
        else
        {
            how_m_to_insert[i] = coll_count;
            how_m_to_insert[row - 1 - i] = coll_count;
        }
    }

    if (row % 2)
        how_m_to_insert[row / 2] = coll;
    else
    {
        how_m_to_insert[row / 2] = coll;
        how_m_to_insert[(row / 2) - 1] = coll;
    }

    printf("\n\nProcessed Matrix:\n");

    for (i = 0; i < row; i++)
    {
        print_array_wo_middle(matrix[i], coll, how_m_to_insert[i]);
        printf("\n");
    }



    return 0;
}


int input_row(int array[], int len, int row)
{
    int i; // Счётчик
    int chr; // Число из потока ввода

    for (i = 0; i < len; i++)
    {
        printf("Input %i element of %i row of matrix: ", i + 1, row + 1);

        if (scanf("%i", &chr) == 1) array[i] = chr;
        else return -1;
    }

    return 0;
}


void print_array_cutted(int array[], int len, int to_cut)
{
    int i, j;
    int spaces;


    for (i = 0; i < to_cut/2; i++)
    {
        spaces = len_of_num(array[i]);
        for (j = 0; j < spaces; j++) printf(" ");
        printf(" ");

    }

    for (i = to_cut / 2; i < (len - to_cut / 2); i++)
    {
        printf("%i ", array[i]);
    }

    return;
}

void print_array_wo_middle(int array[], int len, int elements)
{
    int i, j;
    int spaces;


    if (elements == len)
    {
        for (i = 0; i < elements; i++)
        {
            printf("%i ", array[i]);

        }
    }
    else
    {
        for (i = 0; i < elements / 2; i++)
        {
            printf("%i ", array[i]);

        }

        for (i = elements / 2; i < (len - elements / 2); i++)
        {
            spaces = len_of_num(array[i]);
            for (j = 0; j < spaces; j++) printf(" ");
            printf(" ");
        }

        for (i = (len - elements / 2); i < len; i++)
        {
            printf("%i ", array[i]);

        }
    }

    return;
}

int len_of_num(int num)
{
    int i;
    int len = 0;

    if (num < 0) len = 1;
    num = fabs(num);

    for (i = 1; i <= num; i *= 10) len++;

    return len;
}

void print_array(int array[], int len)
{
    int i;

    for (i = 0; i < len; i++)
    {
        printf("%d ", array[i]);
    }

    return;
}