Question

How to declare array with compile time known variable size in C++

Answer 1

#include <iostream>

int main() {
    static const int size = 5;
    int arr[size];
    
    for (int i = 0; i < 5; i++)
        arr[i] = i * 3;
    
    for (int i = 0; i < 5; i++)
        std::cout << arr[i] << " ";
}



/*
run:

0 3 6 9 12 

*/

 

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