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- //Tutorijal 4
- #include <stdio.h>
- #include <math.h>
- int main() {
- float a,b,c,x1,x2,x1Re,x2Re,x1Im,x2Im,t,D;
- printf("\n Unesite koeficijente kvadratne jednadzbe a,b,c:");
- scanf("%f %f %f",&a,&b,&c);
- D=b*b-4.0*a*c;
- if(D>0)
- {
- t=sqrt(D);
- x1=(-b+t)/(2*a);
- x2=(-b-t)/(2*a);
- printf("\n Rjesenja su: x1=%f x2=%f\n",x1,x2);
- }
- else if(D==0)
- {
- x1=(-b)/(2*a);
- printf("\n Rjesenja su: x1=x2=%f\n",x1);
- }
- else
- {
- t=sqrt(-D);
- x1Re=(-b)/(2*a);
- x2Re=x1Re;
- x1Im=t/(2*a);
- x2Im=-x1Im;
- printf("\n Rjesenja su: x1 = (%f,%f)\n",x1Re,x1Im);
- printf(" x2 = (%f,%f)\n",x2Re,x2Im);
- }
- return 0;
- }
- #include <stdio.h>
- int main () {
- int i,j,a,b;
- printf ("Unesite stranice pravougaonika a,b: ");
- scanf ("%d,%d",&a,&b);
- for (i=0; i<b; i++) {
- for (j=0; j<a; j++) {
- if ( (i==0 && (j==0 || j==a-1)) || (i==b-1 && (j==0 || j==a-1)) ) printf ("+");
- else if (i==0 || i==b-1) printf ("-");
- else if (j==0 || j==a-1) printf ("|");
- else printf (" ");
- }
- printf ("\n");
- }
- }
- #include <stdio.h>
- int main ()
- {
- int i,j,k;
- printf (" X |");
- for (i=-1; i<=10; i++) {
- if(i>0) printf ("%3d |",i);
- if (i==0) {
- for (k=0; k<45; k++) {
- if (k==4) printf ("+");
- else printf ("-");
- }
- }
- for (j=1; j<=10; j++) {
- if (i==-1) printf ("%4d",j);
- else if (i>0) printf("%4d",i*j);
- }
- printf ("\n");
- }
- return 0;
- }
- #include <stdio.h>
- int main() {
- int m,g,d=0;
- printf("Unesite mjesec: ");
- scanf("%d",&m);
- printf("Unesite godinu: ");
- scanf("%d",&g);
- switch (m)
- {
- case 1:
- printf("Januar ");
- d=31;
- break;
- case 2:
- printf("Februar ");
- break;
- case 3:
- printf("Mart ");
- d=31;
- break;
- case 4:
- printf("April ");
- d=30;
- break;
- case 5:
- printf("Maj ");
- d=31;
- break;
- case 6:
- printf("Juni ");
- d=30;
- break;
- case 7:
- printf("Juli ");
- d=31;
- break;
- case 8:
- printf("Avgust ");
- d=31;
- break;
- case 9:
- printf("Septembar ");
- d=30;
- break;
- case 10:
- printf("Oktobar ");
- d=31;
- break;
- case 11:
- printf("Novembar ");
- d=30;
- break;
- case 12:
- printf("Decembar ");
- d=31;
- break;
- }
- if((g%4==0) && (m==2)) d=29;
- else if (m==2) d=28;
- printf("%d, broj dana: %d",g,d);
- return 0;
- }
- #include <stdio.h>
- int main ()
- {
- int broj,cifra,novibroj=0,b=1;
- int faktor=1;
- do {
- printf ("Unesite broj: ");
- scanf ("%d",&broj);
- } while (broj<0);
- do {
- printf ("Unesite cifru: ");
- scanf ("%d",&cifra);
- } while (cifra<0);
- do {
- b=broj%10;
- broj=broj/10;
- if (b!=cifra) {
- novibroj=novibroj+b*faktor;
- faktor*=10;
- }
- } while (broj!=0);
- printf ("Nakon izbacivanja broj glasi %d.",novibroj);
- printf ("\nBroj pomnozen sa dva glasi %d.",novibroj*2);
- return 0;
- }
- #include <stdio.h>
- #include <stdlib.h>
- #include <time.h>
- int main () {
- srand(time(0));
- int n;
- int a=rand()%100;
- printf ("Izabrao sam broj. Probaj ga pogoditi (-1 za izlaz).\n");
- do {
- printf ("Unesite broj: ");
- scanf ("%d",&n);
- if (n==-1) break;
- if (n < a) printf ("VECI\n");
- else if (n >a) printf ("MANJI\n");
- else {
- printf ("JEDNAK\n");
- break;
- }
- } while (n<100 || n>0);
- printf ("Kraj igre.");
- }
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