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Jasmine O'Brien
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Asked: 2022-05-18T19:13:33+00:00 In:

How should I do to fill array with random numbers c++?

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I need to find a solution for the fill array with random numbers c++ problem. Could you give me some advice? Here is my code:

#include <iostream>
 #include <ctime>
 #include <time.h> 
 
 using namespace std;
 
 void initialize(int arr[], int size);
 
 
 int main(){
 
 
  const int SIZE = 10;
  int myList[SIZE];
 
  initialize(myList, SIZE);
  
  return 0;
 
 }
 
 void initialize(int arr[], int size){
  
  srand(time(0));
 
  int random = (rand() % 9);
 
  for(int i = 0; i < size; i++){
 
  arr[i] = random;
  }
 
  for(int j = 0; j < size; j++){
  cout<<arr[j]<< endl;
  }
 }
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2 Answers

  1. Best Answer
    Expert

    In each initialization, you are properly using the same integer. For loop format should be that:

    for(int i = 0; i < size; i++){

arr[i] = (rand() % 10);
}
    • 0

  2. If you wish to include 9 in your range, you should also write %10. This formula is used to generate random numbers. random = (rand()% (maxValue-minValue+1) +minValue 

     for(int i = 0; i < size; i++){

 arr[i] = (rand() % 10);
 }
    • 21

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