Return maximum frequency number from stack

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I designed one mfc application in which data received from udp is stored in file as well as in stack.I used stl for stack; it stored elements as per receiving order,but i want to return repetitive number from stack,how to use stack as function parameter & retrieve elements of stack as an array? I write code for push elements in stack given below.If any changes in that function please suggest.

C++

template< typename T > void pushElements( T &stackRef,int value)
{
       stackRef.push( value);
}

Posted 16-Dec-13 23:13pm

Venkat Raghvan

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Richard MacCutchan 17-Dec-13 5:32am

Don't use a stack, use one of the other collection classes so you can sort and count.

Venkat Raghvan 17-Dec-13 6:07am

which collection class i should used?

Richard MacCutchan 17-Dec-13 6:43am

Whichever one provides all the features that you want to use. If you don't care about duplicates then vector should be OK.

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Pablo Aliskevicius · Answer 1 · 2013-12-17T02:19:00

Use this:

C++

typedef std::map<int,int> container_t;
void pushElement(container_t &cont, int value)
{
    container_t::const_iterator it = cont.find(value);
    cont[value] = 1 + (it == cont.end() ? 0: it->second); 
}

If you also need a stack (for popping), you may need two containers:

A stack for popping.
A map for frequencies (histogram)

In this case, consider encapsulating both containers in a class of your own.

Hope this helps,