Array Memory Leak in Dynamic Allocation Cleanup

#include <iostream>

int* processDataDynamicArray(const int* data, int size) {
    int* result = new int[size];
    for (int i = 0; i < size; ++i) {
        result[i] = data[i] * 2;
    }
    return result;
}

void cleanup(int* ptr) {
    delete ptr; // Incorrect deletion
}

int main() {
    const int data[] = {1, 2, 3};
    int* processedData = processDataDynamicArray(data, 3);
    for (int i = 0; i < 3; ++i) {
        std::cout << processedData[i] << " ";
    }
    std::cout << std::endl;
    cleanup(processedData);
    return 0;
}