Question

How to generate N random numbers between min and max into a vector with C++

Answer 1

#include <iostream>
#include <vector>
#include <ctime>

#define SIZE 7

int getRandom(const int min, const int max) {
    return (rand() % (max - min + 1)) + min; 
}

void GenerateNRandomNumbers(const int N, std::vector<int>& vec, const int min, const int max) {
    for (int i = 0; i < N; i++) {
        vec[i] = getRandom(min, max);
    }
}

int main() {
    srand(static_cast<unsigned int>(time(nullptr)));
    std::vector<int> vec(SIZE);
    const int N = SIZE;

    GenerateNRandomNumbers(N, vec, 1, 37);

    for (int i = 0; i < N; i++) {
        std::cout << vec[i] << " ";
    }
}

  
  
/*
run:
    
1 19 3 26 13 25 24 
   
*/

 

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