unit

#include <cstdio>


void read_matrix(FILE *inp_file, int n, int **mtrx) {
    for (int i = 0; i < n; i++) {
        // mtrx[i] = new int [n];
        for (int j = 0; j < n - 1; j++)
            fscanf(inp_file, "%d", &mtrx[i][j]);
        fscanf(inp_file, "%d\n", &mtrx[i][n - 1]);
    }
}


void read_array(FILE *inp_file, int m, int *arr) {
    for (int i = 0; i < m - 1; i++)
        fscanf(inp_file, "%d ", &arr[i]);
    fscanf(inp_file, "%d\n", &arr[m - 1]);
}


void write_matrix(FILE *out_file, int n, int **mtrx) {
    for (int i = 0; i < n; i++) {
        for (int j = 0; j < n; j++)
            fprintf(out_file, "%d ", mtrx[i][j]);
        fprintf(out_file, "\n");
    }
}


void write_array(FILE *out_file, int m, int *arr) {
    for (int i = 0; i < m; i++) {
        fprintf(out_file, "%d ", arr[i]);
    }
}


int get_posi_sum_of_matrix(int **mtrx, int size) {
    int result = 0;

    for (int i = 0; i < size; i++)
        for (int j = 0; j < size; j++)
            if (mtrx[i][j] > 0)
                result += mtrx[i][j];

    return result;
}


int get_neg_sum_of_array(int *arr, int size) {
    int result = 0;

    for (int i = 0; i < size; i++)
        if (arr[i] < 0)
            result += arr[i];

    return result;
}


int number_module(int num) {
    if (num < 0)
        num *= -1;

    return num;
}