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

typedef struct{
    int value;
    char *roman;
    unsigned char usage;
} romanDigit;
int main()
{
    romanDigit digits[13] ={
    {.value=1000,.roman="M",.usage=3},
    {.value=900,.roman="CM",.usage=3},
    {.value=500,.roman="D",.usage=3},
    {.value=400,.roman="CD",.usage=3},
    {.value=100,.roman="C",.usage=3},
    {.value=90,.roman="XC",.usage=3},
    {.value=50,.roman="L",.usage=3},
    {.value=40,.roman="XL",.usage=3},
    {.value=10,.roman="X",.usage=3},
    {.value=9,.roman="IX",.usage=3},
    {.value=5,.roman="V",.usage=3},
    {.value=4,.roman="IV",.usage=3},
    {.value=1,.roman="I",.usage=3}
    };
    int bekert = 0;
    char output[35] = {0};
    while(1){
        printf("Irjon be egy szamot 1 es 4999 kozt!\n");

        scanf("%d",&bekert);
        if(bekert<1||bekert>4999){
            printf("Szamtartomanyon kivuli ertek.\n");
        }
        else break;
    }
    for(int i=0;bekert>0;){
        //printf("Teszt %d-re \n",digits[i].value);
        if(bekert-digits[i].value >= 0){
            bekert -= digits[i].value;
            strcat(output,digits[i].roman);
        }
        else{
            i++;
        }
    }
    printf("A szam romai alakja: %s\n",output);
    return 0;
}