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typedefint Item;

class Stack {

public:staticconstint MAX=100;

private:Item arr[MAX];int nvalid;

public:void push(Item val);void pop();

Item top();bool isempty();Stack();

};

#include#include"Stack.h"usingnamespace std;

Stack::Stack() {nvalid=0;

}

void Stack::push(Item val) {arr[nvalid]=val;nvalid++;

}

void Stack::pop() {

if(isempty()==1)cout slash; // slash seperates two integer values

is>>den;

while(den==0) // if den==0 keep waiting for useable den value

is>>den;

}

ostream& operator

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void Fraction::print(ostream& os) const { // simply prints fraction

os

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#include

using namespace std;

int main() {

char* cptr;

char c1='A';

cptr=&c1;

cout