C/C++ :: Using Random Number On Array Values

Jun 9, 2014

I'm currently working on a code, its a wheel of fortune type of game. I have specific values of an array of size 10, and i have to get these at a random. so they would not print out in order. but how to assign each value of the random to the array.

#include <stdlib.h>
#include <stdlib.h>
#define CHANCES 5
int main(void){
int num, i;
int money[10] = { 100, 300, 200, 350, 250, 150, 175, 500, 50, 75 };

[Code] ....

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C :: Random Number Generator Array?

Apr 6, 2013

Write a program that generates an array of 20 random numbers between 1 and 100. Use a loop to output the numbers on the screen with a field width of 4 characters. Write code that will reverse the numbers in the array and then output the numbers to the screen with a copy of the same output loop used with the original numbers.

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Nov 30, 2014

How to generate random and different number in a range. This is my code:

Code:
#include <stdio.h>#define n 8
#define m 7
int main() {
int i,j,a[n][n];
printf("Relaxed Latin Square (%d,%d)

[Code] .....

When I executed that code, the number is random but not different.

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Dec 16, 2014

Code:

for(int i = 0 ; i < SIZE ; i ++)
{
scanf("%d" , & selection[i]);
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}

is it possible to do this. i am trying to get 6 different numbers stored into 6 elements of an array . this is the piece of the code i think there is a problem with. ie my program scans the numbers and then crashes at this point so think it could be something to do with the commented line?

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C++ :: Random Number Generator With Array

Feb 23, 2015

The program has two array of character. One of them has size 26 and is initialized with the alphabet a to z. A random number generator generates two numbers and these two numbers are used to index into this array of alphabets. The second array is used to hold the indexed alphabets. For example, the first row is the value held in the second array and the second row are the two generated numbers.

b g c z k e <- letter index by generate number n1=1 n2=6 n1=2 n2=25 n1=10 … … … … n2=4 <- generated n1 & n2

Please see illustration below for clarification on the above question.

Element a b c ……… x y z
Index 0 1 2 ……… 23 24 25

Array2
Element a b c ……… x y z
Index 0 1 2 ……… 23 24 25

Final state after program execution

Array1
Element a b c ……… x y z
Index 0 1 2 ……… 23 24 25

Array2*
Element c e m ……… z f g
Index 0 1 2 ……… 23 24 25
Random No generated 2 4 12 ……… 25 5 6

* Actual char element allocated to each index location will depend on corresponding random number generated. Program completes execution after filling all 26 locations in Array2.

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Oct 24, 2013

Basically we have this 7 bit binary code, and i would like to pick out 3 numbers randomly from it, how do we do that ?

for example 1011101

int Num[7];
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{Num[i] = binary % 2;
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Nov 20, 2014

This is my coding so far and I am confused to what the constant for array size is

//initialize arrays
string states[ARRAY_SIZE]={"Alabama", "Alaska", "Arizona"};

string capital[ARRAY_SIZE]={"Montgomery", "Juneau", "Phoenix"};

while (play again) {

//generate random index number
int index = rand () % _______

what goes after the rand () % ?

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Oct 24, 2014

I need to find the smallest number in my 10x8 arraygrid with random numebr filled in it

Here my Code:

#include <iostream>
using namespace std;
int main() {
int total,average,smallest;
int row=0;
int col=0;

[Code] ....

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Nov 6, 2014

I need to create A program That makes a 12x10 Array Grid Filled With Random Numbers From 0-99.

Then I need To Allow The User To Input A Number Between 0-99 And Then The program will then search through the array and count how many of the users number there is inside the array.

Code:

#include <iostream>
using namespace std;
int main() {
int input;
int number;
int row=0;
int col=0;
int Array [12][10];

[Code] ....

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Sep 12, 2013

I'm trying to calculate the number of distinct values entered into an array. If i enter the followings "3,4,5,6,7,7,6,e (anything that's not a number)" . I get a total of 7 but in reality it should be a 5.

Code:

#include <stdio.h>
//---------function to find the distinct values----
int find_distinct(int list[], int size)
{
int i, j,size2, distinct = 0;
for(i = 0; i < size; i++)

[Code]...

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Sep 26, 2012

I'm running a game online and designing a program to generate Enemy Stats. Basically, it's supposed to generate 25 numbers between 0 and 7(to represent 8 Attributes on a 25 Point Buy system) and count how many times each number shows up.

Here's what the code looks like:

Code:
#include <iostream>
#include <ctime>
#include <cstdlib>
using namespace std;
int Generate() {
int r= rand();
int s= r%7;
[Code] ....

And here's two outputs.

1: Code:

12133089220 12133089220 12133089220 12133089220 12133089220 12133089220 12133089220 12133089220 12133089220 12133089220 12133089220 12133089220 12133089220 12133089220 12133089220 12133089220 12133089220 12133089220 12133089220 12133089220 12133089220 12133089220 12133089220 12133089220 12133089220 Stats[0]= 25 Stats[1]= 0 Stats[2]= 0 Stats[3]= 0 Stats[4]= 0 Stats[5]= 0 Stats[6]= 0 Stats[7]= 0 Stats[8]= 0 Disallowed system call: SYS_socketcall

2: Code:

14787708434 14787708434 14787708434 14787708434 14787708434 14787708434 14787708434 14787708434 14787708434 14787708434 14787708434 14787708434 14787708434 14787708434 14787708434 14787708434 14787708434 14787708434 14787708434 14787708434 14787708434 14787708434 14787708434 14787708434 14787708434 Stats[0]= 0 Stats[1]= 0 Stats[2]= 0 Stats[3]= 0 Stats[4]= 25 Stats[5]= 0 Stats[6]= 0 Stats[7]= 0 Stats[8]= 0 Disallowed system call: SYS_socketcall

Note that the number does change, but only between runs.

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I've been working on a little experiment, here is the source: [URL]

The problem that I keep running into is when I run the initPop and generate an individual object, the genome of the next individual is _exactly_ the same as the previous one... which confuses me... Shouldn't each individual be randomly different from the one that preceded it? What am I not right when it comes to generating random values?

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Nov 21, 2013

I am working with C++ in Visual Studio. It's my first semester doing anything like this ever. Still, I am embarrassed that I am having trouble with this simple "coin flipping" program. The user tells the program how many times to "flip the coin" & then the program tells the user the results of each flip. You'll see I am randomly generating a 1 or a 2 within the function coinFlip to represent heads or tails. However, the problem is that if the user wants more than one coin flip, the "random" number stays the same for all of them, resulting in all heads or all tails. I am thinking this is an issue with the for loop that I have within the function coinFlip.

Code:

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

[Code] .....

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Mar 14, 2013

srand (time(NULL));
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Oct 19, 2014

Goal: Write a program that compares the values stored in the first array to the user inputted values in the second array.

In order to fix this error: [URL]...

I had to change my array initialization to one with a star in front of it:

char a1[]={"a","d","b","b","c","b","a","b","c","d","a","c","d","b","d","c","c","a","d","b"};
to:
char *a1[]={"a","d","b","b","c","b","a","b","c","d","a","c","d","b","d","c","c","a","d","b"};

I also changed my 2nd array to one with a star in front of it: char *a2[20];

What does this mean exactly? Putting a star in front of an array?

Also, I am now getting an "unhandled exception" when I try to get input for my 2nd array:

cin>>a2[i];

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Apr 10, 2014

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Here is my TheoryQuestion Class

public class TheoryQuestion {
bool BeenAsked = false;
public string Question
{
get;
set;
}

[Code] .....

Its probably some mistake I have made but I just can't see it.

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class Program {
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int largest = 0;
Random rand = new Random();
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[code]....

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Apr 15, 2014

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I've been reading documents on partition generating and the concept still eludes me, and any other questions on here or other programming sites using partitions don't seem to have a constraint on them.

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there is my code:

#include "stdafx.h"
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#include <cstdlib>
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