#include<stdio.h>
#include<stdlib.h>
#include<string.h>
#include <time.h>

#define POCET_RADKU 5
#define POCET_SLOUPCU 4

int main(){
  int *pcislo=NULL;
  int cislo;
  int i;
  pcislo=&cislo; //do ukazatele pcislo jsme priradili adresu cislo
  *pcislo=50; //na adresu ukazatele pcislo vlozim hodnotu 50
  int *cisla = (int*)malloc(10*sizeof(int));
  printf("Prvni: %p, Posledni: %p\n",cisla, cisla+9);
  printf("Prvni: %p, Posledni: %p\n",&cisla[0], &cisla[9]);
  srand (time(NULL));
  for (int i=0;i<10;i++){
  cisla[i]=rand()%100;
  printf ("First number: %d\n", cisla[i]);
}
  float rcisla[4];
  srand (time(NULL));
  for (int i=0;i<4;i++){
  rcisla[i]=(float)(rand()%100);
  printf ("First number: %d\n", rcisla[i]);
}
int matice[POCET_RADKU][POCET_SLOUPCU];
//napneni matice nahodnyma cislami
srand (time(NULL));
  for (int r=0;r<5;r++){
    for (int s=0;s<4;s++){
  matice[r][s]=rand()%100;
  printf("%3d",matice[r][s]);
}
printf("\n");
}
  getchar();
 return 0;
}