Динамические массивы: выделяем и высвобождаем память

void GetMemSize(DWORD ProcessID, size_t &Memory, size_t &PageFile)
{
    HANDLE hProcess;
    PROCESS_MEMORY_COUNTERS pmc;
 
    hProcess = OpenProcess(PROCESS_QUERY_INFORMATION | PROCESS_VM_READ, FALSE, ProcessID);
    if (NULL == hProcess)
        return;
 
    if (GetProcessMemoryInfo(hProcess, &pmc, sizeof(pmc)))
    {
        Memory = pmc.WorkingSetSize;
        PageFile = pmc.PagefileUsage;
    }
    CloseHandle(hProcess);
}
 
void SingleArr()
{
    int *arr = new int[100500];
    delete[]arr;
}
 
void MultiArr()
{
    int nRow = 10, i;
    int **multiarr = new int *[nRow];
    for (i = 0; i < nRow; i++)
        multiarr[i] = new int[100500];
 
    for (i = 0; i < nRow; i++)
        delete[]multiarr[i];
    delete[]multiarr;
}
 
void SomeFunc()
{
    int* i;
    i = new int[100500];
    delete[] i;
}
 
int _tmain(int argc, _TCHAR* argv[])
{
    DWORD processID = GetCurrentProcessId();
    size_t memory_before, pagefile_beforre, memory_after, pagefile_after;
 
    GetMemSize(processID, memory_before, pagefile_beforre);
 
    SingleArr();
 
    GetMemSize(processID, memory_after, pagefile_after);
    cout << "Before\tWorkingSetSize: " << memory_before << "\tPagefileUsage: " << pagefile_beforre << endl;
    cout << "After\tWorkingSetSize: " << memory_after << "\tPagefileUsage: " << pagefile_after << endl << endl;
    cout << "Used\tWorkingSetSize: " << memory_after - memory_before << "\tPagefileUsage: " << pagefile_after - pagefile_beforre << endl << endl;
 
    GetMemSize(processID, memory_before, pagefile_beforre);
 
    SomeFunc();
 
    GetMemSize(processID, memory_after, pagefile_after);
    cout << "Before\tWorkingSetSize: " << memory_before << "\tPagefileUsage: " << pagefile_beforre << endl;
    cout << "After\tWorkingSetSize: " << memory_after << "\tPagefileUsage: " << pagefile_after << endl << endl;
    cout << "Used\tWorkingSetSize: " << memory_after - memory_before << "\tPagefileUsage: " << pagefile_after - pagefile_beforre << endl << endl;
 
    GetMemSize(processID, memory_before, pagefile_beforre);
 
    MultiArr();
 
    GetMemSize(processID, memory_after, pagefile_after);
    cout << "Before\tWorkingSetSize: " << memory_before << "\tPagefileUsage: " << pagefile_beforre << endl;
    cout << "After\tWorkingSetSize: " << memory_after << "\tPagefileUsage: " << pagefile_after << endl << endl;
    cout << "Used\tWorkingSetSize: " << memory_after - memory_before << "\tPagefileUsage: " << pagefile_after - pagefile_beforre << endl << endl;
 
    system("pause");
    return 0;
}