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

struct Data {
    int x[50];
    int y[50];
    int opseg;
};


int distance(int &x1, int &y1, int &x2, int &y2)
{
    int x,y,distance;
    //-----------
    if(x1>x2)
        x=x1-x2;
    else if(x2>x1)
        x=x2-x1;
    //-----------
    if(y1>y2)
        y=y1-y2;
    else if(y2>y1)
        y=y2-y1;
    //-----------
    if(x1==x2)
        return y;

    if(y1==y2)
        return x;
    //-----------
    distance=sqrt((x*x) + (y*y));
    return distance;
}


int main()
{
    struct Data p;

    int stranica[3],rez;

    for(int j=0;j<3;j++)
    {
        for(int k=0;k<1;k++)
        {
            printf("\nUnesite koordinate za %d. tocku: X: ",j+1);
            scanf("%d",&p.x[j]);

            printf("\nUnesite koordinate za %d. tocku: Y: ",j+1);
            scanf("%d",&p.y[j]);
        }
    }
    //printf("\n%d. tocka: X: %d, Y: %d",i+1,p.coord[i][k]);
    for(int j=0;j<3;j++)
    {
        for(int k=0;k<1;k++)
        {
            printf("\n%d. tocka: X: %d, Y: %d",j+1,p.x[j],p.y[j]);
            if(j<2)
                stranica[j]= distance(p.x[j],p.y[j],p.x[j+1],p.y[j+1]);
            else
                stranica[j]= distance(p.x[j],p.y[j],p.x[0],p.y[0]);
        }
    }
    rez=stranica[0]+stranica[1]+stranica[2];
    printf("\nRezultat: %d",rez);
}