#include <stdio.h>
#include <conio.h>

int main (void)
{
    int loopcount;
    int hotdogs;
    int total;
    int average;
    total=0;
    loopcount=0;
    
    while(loopcount<7){
                       printf("Upisi koliko si pojeo hotdogova danas:");
                       scanf ("%d", &hotdogs);
                       total = total + hotdogs;
                       loopcount=loopcount+1;
                       } 
    average = total;
    printf("Pojeo si %d hotdog za tjedan dana.", average);
    
    getch ();
    }

man gcc

gcc imeprograma.c

./a.out

#include <stdio.h>

int main (int argc, const char * argv[])
{

    int num1,num2,num3;
    printf("Unesi tri cijela broja od kojih ce biti prikazan jedan koji je najveci...");
    printf("Unesi prvi broj:");
    scanf("%d",&num1);
    printf("Unesi drugi broj:");
    scanf("%d",&num2);
    printf("Unesi treci broj:");
    scanf("%d",&num3);
    return 0;
}

if (num1 num2

if (num1>num2)
   if (num1>num3)
      printf (num1);
   else
      printf (num3);
else
   if (num2>num3)
      printf (num2);
   else
      printf (num3);