proga7

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

enum lamps {
    incandescent,
    daylight=5,
    halogen=5
};

struct triangle {
    int x1,y1;
    int x2,y2;
    int x3,y3;
};

struct card_reader
{
    unsigned int x:4;
};

union code
{
    struct card_reader p;
    struct{
        unsigned ms:1;
        unsigned cf:1;
        unsigned sd:1;
        unsigned turn:1;
    } byte;
};

void main() {
    enum lamps a, b, c;
    a = incandescent;
    b = daylight;
    c = halogen;
    printf("%d\n", c);



    struct triangle T;
    float perimeter;
    T.x1 = 5; T.y1 = 0;
    T.x2 = 10; T.y2 = 10;
    T.x3 = 0; T.y3 = 10;

    perimeter = (sqrt(pow(T.x1-T.x2,2)+pow(T.y1-T.y2,2))+sqrt(pow(T.x3-T.x2,2)+pow(T.y3-T.y2,2))+sqrt(pow(T.x1-T.x3,2)+pow(T.y1-T.y3,2)));

    printf("%0.2f", perimeter);



    int h;
    scanf("%x", &h);
    struct card_reader center = {h};
    union code d;
    d.p = center;
    printf("%d %d %d %d\n",
           d.byte.turn, d.byte.sd, d.byte.cf, d.byte.ms);
}