Ndtyjky

I'm incredibly new to C (and programming in general) and finding how to manipulate arrays is almost impossible to understand (I know what an array is).

I'm attempting to write a program that generates 100 random integers in a range (1-50), stores them in array elements (1-10, 11-20, 21-30, 31-40, and 41-50), and print the number of randomly generated integers stored in each element, i.e.

• 1-10 = 20


• 11-20 = 30


• 21-30 = 21


• 31-40 = 19


• 41-50 = 20

The best I can come up with so far is:

void randomNumbers

{

    int count[ARRAY_LENGTH];



    for (int i = 0; i < ARRAY_LENGTH; i++)

    {

        count[i] = 0;

    }



    for (int i = 0; i < ARRAY_LENGTH; i++)

    {

        count[i] = rand() % 50 + 1;

    }





    for (int i = 0; i <= ARRAY_LENGTH - 1; i++)

    {

        printf("Index %d -> %dn", i, count[i]);

    }

}

That just says "element 1 = random number, element 2 = random number" etc.

I don't understand how to:

• Store the randomly-generated integers in the array's elements


• Partition the randomly-generated integers into the corresponding
  element


• Tell the program to print the number of integers generated in each
  element range

The following is the code that generates 100 random integers and groups them into categories based on their value :

#include <stdio.h>

#include <stdlib.h>

#include <time.h>



int main(void)

{

  int i, temp;

  int a[5]; // array to store the frequency

  for(i=0;i<5;i++)

   a[i]=0;

  srand(time(0));  // for generating new random integers on every run

  for(i=0;i<100;i++)

  {

    temp = (rand()%50) + 1; // generates random integers b/w 1 to 50

    a[(temp-1)/10]++;

  }

  for(i=0;i<5;i++)

    printf("%d->%d  = %dn",i*10+1,(i+1)*10,a[i]); //printing in the desired format

  return 0;

}