C++ :: Generate Random Numbers Within Specific Range?

Jun 5, 2014

So, there has got to be an easier way to generate random numbers within a specific range. Here is the code that I have been using, for a range of 1-6:

#include <iostream>
#include <ctime>
#include <cstdlib>
using namespace std;

[Code]....

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C++ :: Generate Random Number In The Range -501 To + 50 Inclusive

May 3, 2014

Write an instruction to generate a random number in the range -501 to + 50 inclusive.

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C++ :: Generate Random Integers In The Range And Store Them In A Vector

Sep 3, 2014

You are to write a C++ program to generate random integers in the range [ LOW = 1, HIGH = 10000 ] and to store them in a vector < int > of size VEC_SIZE = 250. Then, sort the contents of the vector (in ascending order) and display it on stdout.

To sort the contents of a vector, use the sort ( ) function from the STL. In addition to the main ( ) routine, implement the following subroutines in your program:

• void genRndNums ( vector < int >& v ) : This routine generates VEC_SIZE integers and puts them in vector v. Initializes the random number generator (RNG) by calling the function srand ( ) with the seed value SEED = 1, and generates random integers by calling the function rand ( ).

• void printVec ( const vector < int >& v ) : This routine displays the contents of vector v on stdout, printing exactly NO_ITEMS = 12 numbers on a single line, except perhaps the last line. The sorted numbers need to be properly aligned on the output. For each printed number, allocate ITEM_W = 5 spaces on stdout.

Programming Notes:

• You are not allowed to use any I/O functions from the C library, such as scanf or printf. Instead, use the I/O functions from the C++ library, such as cin or cout.
• Let v be a vector of integers, then the call: sort ( v.begin ( ), v.end ( ) ) sorts the elements of v in ascending order. The detailed description of the sort ( ) routine can be found on the course web site and in the course textbook.
• Execute the srand ( ) function only once before generating the first random integer with the given seed value SEED. The rand ( ) function generates a random integer in the range [ 0, RAND_MAX ], where the constant value RAND_MAX is the largest random integer returned by the rand ( ) function and its value is system dependent. To normalize the return value to a value in the range [ LOW, HIGH ], execute: rand ( ) % ( HIGH – LOW + 1 ) + LOW.

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C++ :: Random Numbers Are Not In Specified Range

Nov 9, 2014

My program behaves weird... I wanted to generate 10 random numbers from 1 to 100 each of them bigger than previous, using the while loop and function that returns a random number in specified range.

When I run the program, I get numbers much bigger than 100, even negative number, and numbers are same every time I run the program.

Code:
#include <ctime>#include <cstdlib>
#include <iostream>
using namespace std;
int range(int low, int high);

[Code] .....

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C :: Generate Random Numbers

Mar 17, 2013

I'm trying to generate random numbers so that I can assign people to teams. So far I have come up with this

Code:

int generateTeam(){
int i, teamNumber, c, n;
for (c = 0; c <= 5; c++) {
n = rand()%100 + 1;
}

[code]....

}//end generateTeam I'm not sure how to make it so that I can exclude the previous random number when generating the next one. As an example, I have 22 students and I get the number 19. Now I can't have 19 again because that guy already has it.

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C/C++ :: Get Double Random Numbers In Range From 0 To 1?

Apr 19, 2012

How to get double random numbers in the range from 0 to 1?

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C++ :: Generate Random Numbers To A File?

Apr 3, 2013

The program is to generate random numbers to a file and will have one integer parameter, Open a file and then using a loop write the required number of random numbers to the file. Scale the random numbers from 1 and 100 inclusive. Then closes the file .The last function will read the numbers in the file into your program. so far i have

Code: #include <iostream>
#include <string>
#include <iomanip>
#include <ctime>
#include <fstream>
#include <cstdlib>

[Code] .....

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C++ :: How To Generate 3 Random Numbers Between 1 And 6 Using Function

Apr 30, 2013

I am trying to generate 3 random numbers between 1 and 6 using a function called generate_rand. but everytime im having an error : no oprators "<<" matches these operands and the last error was :end of file found before the left brace

my program is the following :

# include<iostream>
#include<cstdlib>
using namespace std;

[Code]....

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C++ :: Generate Random Numbers Between Given Values

Mar 14, 2013

srand (time(NULL));
for(int i=0; i<N; i++) {
points[i].x=(rand()%(32767-(-32767)))+(-32767);
points[i].y=(rand()%(32767-(-32767)))+(-32767);
cout<<"x="<<points[i].x<<endl;
cout<<"y="<<points[i].y<<endl;
}

Im trying to generate random numbers between -32767 and +32767, where im going wrong, this code generates only negative numbers

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C :: GSL And OpenMP - Getting Random Numbers That Are Out Of Expected Range

May 2, 2013

I am trying to parallelize some of my code with OpenMP. When I switch to using multiple threads I start getting random numbers that are out of the expected range.

Here is a small example:

Code:
#include <stdio.h>
#include </usr/local/include/gsl/gsl_rng.h>
#include </usr/local/include/gsl/gsl_randist.h>
int main() {
int mySeed=0;
const gsl_rng_type *T;
T = gsl_rng_ranlxs2;
gsl_rng *r_1 ;

[Code] .....

gsl_rng_uniform should only output number in the range [0,1) but with multiple threads it outputs larger number as well.

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C :: Loading Array With Random Numbers Within A Range

Oct 5, 2013

How would i go about loading an array with random numbers with in a range. For example, loading an array of 500 elements with random numbers in the range of 50-100.

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C# :: Generating Unique Random Numbers In The Range

Apr 28, 2014

We had to generate random, unique numbers in the range [1,15]. But running the program for several times showed a bug: It wouldn't always generate a new number for every repeated number. I can't figure out the problem, especially since it works half the time and I can't figure out what's making it work some times and not others.

bool flag1 = true, flag2 = true, flag3 = true;
int i, j = 1;
int[] A = new int[11];
Random rnd = new Random();
A[0] = rnd.Next(1, 15);
Console.WriteLine("1. = " + A[0]);

[Code] .....

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C++ :: Generate Array Of Random Numbers - Searching Algorithm

Jan 31, 2013

My program generates an array of random numbers. I want to then search a specific number within the array. If the number is in the array then a message apopears on the console saying that its there. I'm using the binary search algorithm to do this.

#include <iostream>
#include <ctime>
#include <cstdlib>
#include <iomanip>
#include <cstring>
using namespace std;
int size;
int getSize() { return size; }

[Code] ......

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C++ :: Generate Random Number Between Two Numbers (User Input)

Jul 26, 2014

I am trying to generate a random number between two numbers that the user gives me.

#include <iostream>
#include <cstdlib>
#include <ctime>
using namespace std;
void rand_int(const int &min, const int &max, int &val);

[Code] .....

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C :: Generate Set Of Random Numbers On Board (2D Array) Like Candy Crush

Oct 15, 2013

Assignment on making a program like candy crush but it is called as number crush.

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C++ :: Generate A List Of 200 Random Numbers - Determine Median / Mode And Average

Oct 24, 2013

I am just starting out programming and have an assignment due in the near future. the problem is I cant seem to figure it out. I started it already but got stuck cant seem to figure it out. Here is the assignment.

Create a program that will generate a list of 200 random numbers (ranging from 1-1000) and determine the medium, mode, and average of the list of numbers. Have the program display the original list ant then display the list in ascending and descending order on the screen.

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C++ :: Program To Calculate How Many X Or / And Y From Specific Range

Nov 7, 2013

X and Y are numbers

For example: how many 2 or/and 5 are inside range of 0 to 30.
for or: there are 8 (2,5,12,15,22,25)
for and: there is only one (25).

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C++ :: Random Values Between A Range?

Apr 14, 2013

i have to find 2 random values between a range, lets say from 0-3 i have to find all the possible combinations between this range like (0,0),(0,1)...etc But, it has to be RANDOM and the same combination cannot repeat it self(obviously).

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C :: Generate Random Number Between 50 And 200

Oct 15, 2014

I'm trying to write a program that generates a random number between 50 and 200. I made a program that generates random numbers, but how to make those random numbers be in-between 50 and 200. Any example of a program that generates random numbers that are confined in-between certain values?

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C# :: How To Generate Random Word

Mar 6, 2014

I just can't seem to get this right. What I want to happen is when the program runs a random word should pop up.

I have included my code. I'm not sure by putting tag around my code.

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;

[Code].....

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C :: Program To Generate A Random Sentence

Oct 31, 2013

so I'm creating a program that generates random sentences with structs..I'm trying to use structs and and create 4 different groupings article, noun, verb, and preposition. Then I'm trying to use "r = rand() % ;" to randomly pick one one word from each group to make a sentence. this is what i have

Code:

typedef enum article {
the = 1, a, one, some, any
} article;
typedef enum noun {
boy = 1, girl, dog, town, car
}

[code]....

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C :: How To Generate Random Color Names

Sep 7, 2013

I want to print different color names for "nb " times . I get the number " nb " from the user or from text file . if " nb = 3 " then I want to print any 3 different color names which means that I may print ( red , green , blue ) for example . and if " nb=5 " then I have to print any five different color names ( pink , blue , black , red ,white ) fore example .

Note : " nb " may be a large number ( 17 for example ). How can I do this ?

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C :: Can't Generate Number In Random Function

Jun 16, 2013

i just search random function, there are random function using rand();but when i compile this code

Code:

#include <stdio.h>
int main(){
int a;
a = rand();
printf("%d",a);
}

[code].....

i ask to you that is function to generate the number, why the number is cannot generate

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C++ :: How To Generate And Then Store Random Number

Nov 6, 2014

So I have to generate a random number between 1 and 6 and then store that same random number into an int variable. Eg, if the random number is 4, that must be stored into int i.

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C++ :: Generate Independent Random Number?

May 30, 2013

Is it possible that have a function or class can generate independent random number . And I can use it any time.

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C++ :: Generate Random Permutation In Array

Feb 16, 2013

I'm currently working on assignment which requires to generate a random permutation of the first N integers. For example, if N = 4, one possible answer is {3,1,2,4} without duplicates. {3,3,2,4} is not correct

to fill a[4], generate random numbers until you get one that is not already in a[0], a[1], ..., a[n-1]. for a[0] whatever random number you generate can be put in it. So here is my code. It seem to works but sometime it give duplicates.

#include <iostream>
#include <stdlib.h>
#include <time.h>

[Code].....

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