pr06009.cpp

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////////////////////////////////////////
// File Name: pr06009.cpp
////////////////////////////////////////
#include <iostream>

// Function prototype.
int* GetDate(int wk, int dy);

////////////////////////////////////////
// The main() function.
////////////////////////////////////////
int main()
{
    int wk, dy;

    do
    {
        std::cout << "Enter week (1-5) day (1-7) ";
        std::cin >> wk >> dy;
    }
    while (wk < 1 || wk > 6 || dy < 1 || dy > 7);

    std::cout << *GetDate(wk, dy);

    return 0;
}

////////////////////////////////////////
// Get an address for the appropriate
// date array element.
////////////////////////////////////////
int* GetDate(int wk, int dy)
{
    static int calendar[5][7] =
    {
        {  1, 2, 3, 4, 5, 6, 7 },
        {  8, 9,10,11,12,13,14 },
        { 15,16,17,18,19,20,21 },
        { 22,23,24,25,26,27,28 },
        { 29,30,31,-1 }
    };

    // Return the address of the date.
    return &calendar[wk-1][dy-1];
}