How to generate a random array of integers subject to a certain constraint
Posted on
16th Feb 2014 07:03 pm by
admin
I am writing a program that asks the user to enter an integer N and then generates a random array of integers of size 2^N, each of whose entries range from 1 to N+1. The final random array, however, must satisfy the following properties: the integer 1 can be stored in 1 slot, the integer 2 can only be stored in 1 slot, the integer 3 can only be stored in 2 slots, the integer 4 can only be stored in 4 slots... until all 2^N slots are filled with the integers 1, 2, ...,N+1.
I have written some code that asks the user to enter an integer N and then
generates a random array of integers of size 2^N but I cannot generate a random array subject to the constraints that I mentioned above. I have written a function, CheckArray, that returns the value of how many times a certain integer
Did you know?Explore Trending and Topic pages for more stories like this.
appears in the array but I don't know how to use it to help me get my desired random array.
Below is the code I have written so far. Note that the function CheckArray is not called in the program since I don't know how to use it yet.
#include
#include
#include
#include
#include
using namespace std;
int RandomNumber(int m);
int exponentiation(int n);
int CheckArray(int IntegerArray[], int sizeOfArray, int CType);
int main()
{ int N;
int NUMOFCELLS;
cout<< "Enter the maximum number of cell divisions you want: ";
cin>>N;
NUMOFCELLS = exponentiation(N);
cout<<"The maximum number of cells will be: ";
cout<
cout<<"n";
cout<<"n";
int sample[128]; // this reserves 128 integer elements
int t;
srand(time(0));
getchar();
for(t = 0; t <= NUMOFCELLS; t++)
{ sample[t] = RandomNumber(N); }
// display the array
for(t = 0; t < NUMOFCELLS; ++t)
{ cout << sample[t] << ' ' ; }
cout<<"n";
getchar();
return 0;
}
int RandomNumber(int m)
{ // generates a random number in the specified range from 0 to (m-1)
int iSecret;
iSecret = rand() % m + 1;
return(iSecret);
}
int exponentiation(int n)
{ int t;
int numberofcells;
numberofcells = 2;
for(t=1; t < n; ++t)
{numberofcells = 2*numberofcells;}
return(numberofcells);
}
int CheckArray(int IntegerArray[], int sizeOfArray, int CType)
{
int accumulator = 0;
int temp;
for(int i = 0; i < sizeOfArray; i++)
{ temp = IntegerArray[i];
if(temp == CType)
{accumulator++;}
}
return accumulator;
}
No comments posted yet
Your Answer:
Login to answer
349
46
Other forums
mysql_real_escape_string making variable equal nothing
i post a form and i post the variable:
Code: $var = $_POST[variable];then i echo $var its what i
need help in update query
hi
i have a dynamic form. i need help in how can i use update query when values from dynamic for
how to transport the Query and insfoset
Hi
I have created the query using SQ01........
How to created T-code for query..
'grab_files', multiple extension?
hey guys,
can anyone suggest a way to make to following line of code look for files with more
Count of reciepients in php mailer
How can i sent a mail to large no of reciepients say 10,00,00 Using PHP MAILER
HTML Email rec'd as Source Code
The code does create and send the email successfully. However, the message shows as html code and n
array_count_values question?
ok i'm trying to create a top ten list from a database of listed favorite movies.
the followi
dropdown menu
Hello everbody,
I am php newbie.
I need to develop a program that once click the drop do
displaying unknown amount of results
I am reading a directory and getting a list of folders in the directory, I want to display the folde
Ajax Error since Upgrading to 3.5
Ever since upgrading my site to .NET 3.5 (I needed LINQ), I've been getting this annoying error on o