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#include class Date { public:

void set(int y, int m, int d); void print(); private:

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int year, month, day; };

void Date::set(int y, int m, int d) {

year = y; month = m; day = d; }

void Date::print() {

cout<

void main() { Date t1;

t1.set(2005,3,3); t1.print(); } 2005.3.3

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#include class Date { public:

Date ();

Date (int y, int m, int d); void print(); private:

int year, month, day;

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};

Date:: Date ():year(2005),month(3),day(15) { }

Date:: Date (int y, int m, int d):year(y),month(m),day(d) { }

void Date::print() { cout<

}

void main() {

Date t1,t2(2005,3,18) ; t1.print(); t2.print();

}

2005.3.15 2005.3.18

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# include class A { public: int f1(); int f2();

void setx(int m) {x=m; cout<

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