/*PORAZMISLITI PRE UPOTREBE  ILI STA SE MOZE VIDETI NA PISMENOM DELU ISPITA */

1)  ...
      int x=0;
      while (x)  { A() ;}          /* for(; x ;  )   { A( ); }  */



2)
#include <stdio.h>
main()
{
/* ...  */
int a=4, c=0;
switch (c )
{
    case 0:   a=a+3;
    case 1:    a=a-3; 
    case 3: printf("\n");
    default: printf("c=%d\n", c); 
}
printf("a=%d\n", a);
/* ... */
return 0;
} 



3)
int znak ;
while ( znak=getchar()  != EOF)....


4)     .......
        main()
        { int x=4;
          printf(" f(%d) = %d\n", x, f(x) ); 
          return 0;
        }
         
         int f (int a)
        { int b=2;
         return(a-b);
         printf ("\nDa li  me vidis na izlazu :) \n");  
       } 
       ...........


5)    unsigned   a;
        if  (a <0 )  .....


 6)   
 #include <stdio.h>
main()
       {
        int  b=3;   
         int a=4;
        int c;
        /* ... */ 
       while  (a=b)    scanf ("%d", &c);
       
         /* ... */
        printf("\nKraj => c = %d\n", c);
        return 0;
      }


7)   
...
main()
    {  int znak;
      if (znak != EOF)   znak=getchar();
     .....
   }




8)  int i;
      for (i=1; i<10; i++) ;
      printf ("%d  ",  i);


9)  #include <stdio.h>

       f ( float );
     main()
      { float a=2.6, b;
         b=f(a);
        printf (" \n %f ^ 3 = %f\n", a,b);         
        return 0;
      }

      f (float x)
     {  return (x*x*x); } 

      

10) 
#define MAX  50;
   ...
     int n;
     scanf ( "%d",  n );
     if (n < MAX)  ...



11)  
#include <stdio.h>
#include <string.h>
main()
{
    char s[]="124" ;
    s[strlen(s)-1]='3' ;
    ...
 if (s   !=  123 ) printf( "\nString %s po sadrzaju nije jednak 123\n", s) ;
 else printf("\nString %s po sadrzaju je jednak 123\n", s);
   ......
}

12)   
#include <stdio.h>
#define  KVADRAT(a)      ( a * a )
main()
{
int b=1;
printf("KVADRAT(%d) = %d\n", 2*b+4, KVADRAT(2*b+4) );
}



13)
#include <stdio.h>
main()
{
int  a, b, i;
scanf ("%d", &a);
b=b+a;
for(i=0; i<b; i++) printf("\t%d", i);
return 0;
}



14) 
#include <stdio.h>
main()
{/*...*/
 int n,i;
int niz[n];
scanf("%d", &n);
for (i=0; i<n; i++) niz[i]=i+1;
for (i=0; i<n; i++) printf("\nniz[%d]=%d", i, niz[i]);
/*...*/
}

15)
int znak="\n"; 


16)     
int n=10;
printf("n=%d" );

17)
#include<stdio.h>
#include <math.h>

double duzinaDuzi(double, double, double, double);

main() {
   double d1=3,d2=4, d3=3, d5=10;
   printf("\nDuzina duzi  je %4.2f \n", duzinaDuzi(d1, d2, d3, d4));
   return 0;
}


double duzinaDuzi(double x1, double y1, double x2, double y2) {
   return sqrt(sqr(x1-x2)+sqr(y1-y2)); 
   printf("\n");
 /*   return sqrt(pow(x1-x2,2)+pow(y1-y2,2));  */
}