pirmas

#include "pch.h"
#include <iostream>
#include <fstream>
#include <cmath>
#include <string>
#include <iomanip>
using namespace std;

int n = 0;
char x[20];
int val[20];
int min[20];
int VisoVal = 0;
int VisoMin = 0;

struct kelione
{
    string v;
    int pradV;
    int pradM;
    int pabV;
    int pabM;
};
kelione m[20];

void skaitymas(int &n, kelione m[], char x[]);
void skaiciavimas(int n, kelione m[], int val[], int min[],int &VisoVal, int &VisoMin);
void irasymas(int n, kelione m[], int val[], int min[], int &VisoVal, int &VisoMin);

int main()
{
    skaitymas(n, m, x);
    skaiciavimas(n, m, val, min, VisoVal, VisoMin);
    irasymas(n, m, val, min, VisoVal, VisoMin);
}

void skaitymas(int &n, kelione m[], char x[])
{
    ifstream d("duomenys.txt");
    d >> n;
    d.ignore();

    for (int i = 0; i < n; i++)
    {
        d.get(x, 20);
        m[i].v = x;

        d >> m[i].pradV >> m[i].pradM >> m[i].pabV >> m[i].pabM;

        d.ignore();
    }

}

void skaiciavimas(int n, kelione m[], int val[], int min[], int &VisoVal, int &VisoMin)
{

    for (int i = 0; i < n; i++)
    {
        val[i] = (m[i].pabV * 60 + m[i].pabM) - (m[i].pradV * 60 + m[i].pradM);
        min[i] = val[i] % 60;
        val[i] /= 60;
    }
    VisoVal = ( ( 1440 - (m[0].pradV * 60 + m[0].pradM) ) + 1440 + (m[2].pabV * 60 + m[2].pabM));
    VisoMin = VisoVal / 60;
    VisoVal %= 60;
}

void irasymas(int n, kelione m[], int val[], int min[], int &VisoVal, int &VisoMin)
{
    ofstream r("rez.txt");

    for (int i = 0; i < n; i++)
    {
        r << m[i].v << " " << val[i] << " " << setfill('0') << setw(2) << min[i] << endl;
    }
    r << VisoVal << " " << VisoMin << endl;
}