Struktúrák

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

typedef struct
{
    char Brand[30];
    char Model[30];
    int Year;
}Car;

int Car_Cmp(const void* _a, const void* _b)
{
    Car a = *(Car*)_a, b = *(Car*)_b;
    if(strcmp(a.Brand, b.Brand)  == 0) // Nem tudunk márka alapján dönteni
    {
        if(strcmp(a.Model,b.Model) == 0) // Nem tudunk modell alapján dönteni
        {
            return b.Year - a.Year;
        }
        else return strcmp(a.Model,b.Model);
    }
    else return strcmp(a.Brand, b.Brand);
}

int main(int argc, char** argv)
{
    int i = 0, j, kiirt = 0;
    Car Cars[1000];

    while(scanf("%s", Cars[i].Brand) > -1)
    {
        scanf("%s", Cars[i].Model);
        scanf("%d", &Cars[i].Year);
        ++i;
    }

    qsort(Cars, i, sizeof(Car), Car_Cmp);
    for(j = 0; j < i &&  kiirt < atoi(argv[2]); ++j)
    {
        if(strcmp(Cars[j].Brand, argv[1]) == 0)
        {
            kiirt ++;
            printf("%s %s %d\n", Cars[j].Brand, Cars[j].Model, 2014-Cars[j].Year);
        }
    }

    return 0;
}