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  1. Prepare
  2. C++
  3. Introduction
  4. Arrays Introduction
  5. Discussions

Arrays Introduction

  • santyrojas_a
     + 0 comments

    I though Variable Length Arrays (VLAs) where not supported by C++, and my compiler thinks so too. I had to use vectors,

    #include <cmath>
#include <vector>
#include <iostream>
using namespace std;


int main() {
    int n{};
    cin >> n;
    
    if (n < 1 || n > 1000) return 1;
    
    vector<int> vec(n);
    
    // Read array.
    for (int i = 1; i < n + 1; i++) 
    {
        // Load input back to front so its reversed.
        cin >> vec[n - i];    
             
        // Validate.
        if (vec[n - i] < 1 || vec[n - i] > 10000) return 1; 
    }
    
    
    // Output array.
    for (int i = 0; i < n; i++)
    {
        cout << vec[i] << " ";
    }
		
		
    
    return 0;
}