how to create a dynamic array in c++ code example
Example 1: declare dynamic array c++
int main()
{
int size;
std::cin >> size;
int *array = new int[size];
delete [] array;
return 0;
}
Example 2: how to dynamically allocate an array c++
int* a = NULL;
int n;
cin >> n;
a = new int[n];
for (int i=0; i<n; i++) {
a[i] = 0;
}
. . .
delete [] a;
a = NULL;
Example 3: dynamic array cpp
#include <iostream>
#include <cstddef>
int main()
{
std::cout << "Enter a positive integer: ";
std::size_t length{};
std::cin >> length;
int *array{ new int[length]{} };
std::cout << "I just allocated an array of integers of length " << length << '\n';
array[0] = 5;
delete[] array;
return 0;
}
Example 4: c++ dynamic array
new T[size]
Example 5: dynamic array cpp
#include <iostream>
int main()
{
int size;
std::cin >> size;
int* array = new int[size];
delete[] array;
return 0;
}