Tài liệu Bài tập C++ pptx

Bài 1:

# include < conio.h >

# include < stdio.h >

# include < iostream.h >

# include < math.h >

# difine M_PI 3,14

class Point{

private:

int x,y;

int Mau;

public:

Point( ){

x = 0;

y = 0;

Mau = 0;

} Point( int x1, int y1, int Mau1 ){

x = x1;

y = y1;

Mau = Mau1;

} void Nhap( ){

cout << “Nhap toa do x, y : ” ; cin >> x >> y ;

cout << “Nhap so mau : ” ; cin >> Mau ;

} void Xuat( ){

cout << “Toa do diem : ( ” << x << “ ,” << y << “ )” ; cout << “Mau : ” << Mau ;

} int GetX( ) { return x ;}

int GetY( ) { return y ;}

int GetMau( ) { return Mau ;}

};

class Circle{

private:

int x, y ; int r ; public:

Circle( ){

x = 0;

y = 0;

r = 0;

}

Circle( int x1, int y1, int r1 ){

x = x1;

y = y1;

r = r1;

} void Nhap( ){

cout << “Nhap toa do tam : ” ; cin >> x >> y ;

cout << “Nhap ban kinh : ” ; cin > r ;

} void Xuat( ){

cout << “Toa do tam : ( ” << x << “ ,” << y << “ )” ; cout << “\ n Ban kinh : ” < r ;

} int GetX( ) { return x ;}

int GetY( ) { return y ;}

int GetR( ) { return r ;}

fload Dientich(){ return M_PI * r * r ;}

fload Chuvi(){ return 2 * M_PI * r ;}

};

void main ( ){

Circle c ;

clrscr ( ) ;

c.Nhap() ;

c.Xuat() ;

cout << “ \n Dien tich duong tron : ” << c.Dientich();

cout << “ \n Chu vi duong tron : ” << c.Chuvi();

getch();

}

Bai 2:

#

class Thisinh{

private:

char Ht[ 30] ; int Ngay, Thang, Nam ; fload Td ;

public:

Thisinh( ){

strcpy ( Ht, “ ”) ; Ngay = 0;

Thang = 0;

Nam = 0;

Td = 0;

} Thisinh( char * ht1, int Ngay1, int Thang1, int Nam1, int td1 ){

strcpy ( Ht, ht1) ; Ngay = Ngay1;

Thang = Thang1;

Nam = Nam1;

Td = td1;

} char *GetHt( ) { return Ht ;}

int GetNgay( ) { return Ngay ;}

int GetThang( ) { return Thang ;}

int GetNam( ) { return Nam ;}

void Nhap( ){

cout << “Nhap Ho ten : ” ; cin.ignore( 1);

cin.get( Ht, 30);

cout << “Nhap Ngay, thang, nam sinh : ” ; cin >> Ngay >> Thang >> Nam ;

cout << “Nhap Tong diem : ” ; cin >> Td ;

} void Xuat( ){

cout << “ \n Ho ten : ” << Ht;

cout << “\n Nam sinh : ” << Ngay << “ / ” << Thang << “ / ” << Nam; cout << “ \n Tong diem : ” << Td ;

} };

void main(){

Thisinh a[ 100] ;

int i, n ;

clrscr ( ) ;

cout << “ \n Nhap so thi sinh : ” ;

cin >> n;

cout << “ \n Nhap danh sach thi sinh : ” ;

for ( i = 0, i < n, i ++){

cout << “ \n Nhap thi sinh thu : ” << i << “\n” ; a[ i].Nhap();

a[ i].Xuat();

} getch();

}

Bai 3:

// Xay dung lop Date

class Date{

private:

int Ngay, Thang, Nam ; public:

Date( ){

Ngay = 0;

Thang = 0;

Nam = 0;

} Date( int Ngay1, int Thang1, int Nam1){

Ngay = Ngay1;

Thang = Thang1;

Nam = Nam1;

} int GetNgay( ) { return Ngay ;}

int GetThang( ) { return Thang ;}

int GetNam( ) { return Nam ;}

void Nhap( ){

cout << “Nhap Ngay, thang, nam sinh : ” ; cin >> Ngay >> Thang >> Nam ;

} void Xuat( ){

cout << “\n Nam sinh : ” << Ngay << “ / ” << Thang << “ / ” << Nam; }

};

// Ham so sanh giua 2 ngay xem ngay nao lon hon

//Xay dung lop nhan vien su dung lop Date lam lop thanh phan

class Nhanvien : private Date{

private:

char Ht[ 30] ; Date ngaysinh ; char Gioi[ 4] ; fload Hsl ; // he so luong public:

Nhanvien( ){

strcpy ( Ht, “ ”) ; strcpy ( Gioi, “ Nam”) ; Hsl = 0;

} Nhanvien( char * ht1, char * gioi1, float hsl1 ){

strcpy ( Ht, ht1) ; strcpy ( Gioi, gioi1) ;

Td = td1;

} fload GetHsl( ) { return Hsl ;}

void Nhap( ){

cout << “Nhap Ho ten : ” ; cin.ignore( 1);

cin.get( Ht, 30);

cout << “Nhap Ngay, thang, nam sinh : ” ; cin >> Ngay >> Thang >> Nam ;

cout << “Nhap Gioi tinh : ” ; cin.ignore( 1);

cin.get( Gioi, 4);

cout << “Nhap He so luong : ” ; cin >> Hsl ;

} void Xuat( ){

cout << “ \n Ho ten : ” << Ht;

cout << “\n Nam sinh : ” << Ngay << “ / ” << Thang << “ / ” << Nam; cout << “ \n Gioi tinh : ” << Gioi;

cout << “ \n He so luong : ” << Hsl ; }

};

void main(){

Nhanvien a[ 100] ;

int i, n ;

clrscr ( ) ;

cout << “ \n Nhap so nhan vien : ” ;

cin >> n;

cout << “ \n Nhap danh sach nhan vien : ” ;

for ( i = 0, i < n, i ++){

cout << “ \n Nhap nhan vien thu : ” << i << “\n” ; a[ i].Nhap();

a[ i].Xuat();

} getch();

}

Bai 4:

class Dathuc{

private:

int n ; // bac da thuc fload a[ 100] ; // he so da thuc public:

Dathuc( );

Dathuc( fload a1, int n1 );

Dathuc operator - ( ) ; Dathuc operator + ( Dathuc d ) ; Dathuc operator - ( Dathuc d ) ; friend istream &operator >> ( istream & is, Dathuc &d ) ;

friend istream &operator >> ( istream & is, Dathuc &d ) ; };

Dathuc :: Dathuc( ){

n = -1;

}

Dathuc :: Dathuc( fload a1, int n1 ){

n =n1;

for (int i = 0; i < n; i++)

a[ i] = a1[ i] ; }

Dathuc Dathuc :: operator - ( ) {

Dathuc d1;

d1.n = n ;

for (int i = 0; i < n; i++)

d1.a[ i] = - a[ i] ; return d1;

}

Dathuc Dathuc :: operator - ( Dathuc d ) {

Dathuc d1;

int max, min, i ;

if( n < d.n ){

min = n ; max = d.n ; }

else{

min = d.n ; max = n ; }

d1.n = max ;

for (int i = 0; i < min ; i++ )

d1.a[ i] = a[ i] + d.a[ i];

if( n > d.n ){

for ( i = min + 1; i <= max; i++)

d1.a[ i] = a[ i] ; else

for ( i = min + 1; i <= max; i++)

d1.a[ i] = d.a[ i] ; }

if( n = d.n )

while( d1.[d1.n] ==0 && d1.n >= 0) d1.n ;

return d1;

}

istream &operator >> ( istream & is, Dathuc &d ){

cout << “ Nhap bac da thuc : ” ;

is >> d.n ;

cout << “ Nhap cac he so : ” ;

for (int i = 0; i < d.n; i++){

cout << “ a[” << i << “ ] =” ;

is >> d.a[i] ; }

return is;

}

ostream &operator >> (ostream & os, Dathuc &d ){

os << “ Nhap bac da thuc : ” << d.n ;

os << “ Nhap cac he so : ” ;

for (int i = 0; i < d.n; i++)

os << d.a[i] << “ ” ; return os;

}

void main(){

Dathuc d1, d2;

cout << “ Nhap da thuc d1: ” ;

cin >> d1;

cout << “ Nhap da thuc d2: ” ;

cin >> d2;

cout << “ \n” << d1<< “ +” << d2 << “ =” d1+ d2 ;

cout << “ \n” << d1<< “ -” << d2 << “ =” d1- d2 ;

getch() ;

}

Bai 5:

class PS{

private:

int T, M ; public:

PS( ){

T = 0 ; M= 0 ; }

PS( int a, int b){

T = a;

M= b;

} void ToiGian() ;

PS operator +( ) ;

PS operator - ( ) ;

PS operator + ( PS b ) ;

PS operator - ( PS b ) ;

PS operator * ( PS b ) ;

PS operator / ( PS b ) ;

friend istream &operator >> ( istream & is, PS &p ) ; friend ostream &operator << ( ostream & os, PS &p ) ; };

int USCLN( int x, int y){

if ( x == 0 && y == 0) return 1;

else

if ( x == 0) return y;

else

if ( y == 0) return x;

else {

do{

if ( x >= y) x %=y;

else{

x += y;

y = x- y;

x - =y }

} }

}

void PS :: ToiGian(){

if( T == 0) M = 1;

else{

if ( M < 0){

T = - T;

M = - M;

} int u = USCLN( abs( T), M) ; T= T/ u;

M= M/ u;

}

}

PS PS :: operator +( ) {

return PS( T, M) ;

}

PS PS :: operator -( ) {

return PS( -T, M) ;

}

PS PS :: operator +( PS b ) {

return PS( T*b.M + b.T *M, M * b.M) ;

}

PS PS :: operator - ( PS b ) {

return PS( T*b.M - b.T *M, M * b.M) ;

}

PS PS :: operator * ( PS b ) {

return PS( T*b.T, M * b.M) ;

}

PS PS :: operator / ( PS b ) {

return PS( T*b.M, M * b.T) ;

}

istream &operator >> ( istream & is, PS &p ){

cout << “ T =” ;

is >> a.T ;

do {

cout << “ M =” ;

is >> a.M ; }

while ( ! a.M) ;

a.Toigian() ;

return is ;

}

ostream &operator >> ( ostream & os, PS &p ){

os << a.T ;

if ( a.T && a.M != 1)

os << “ / ” << a.M ; return os ;

}

int main(){

clrscr() ;

PS x(T1, M1), y(T2, M2) ;

cout << “ x =” << x;

cout << “ y =” << y;

cout << “x + y =” << x +y;

cout << “x - y =” << x - y;

cout << “x * y =” << x * y;

if( y!=0)

cout << “x / y =” << x / y;

getch();

}

Bai 6:

Class Nguoi{

private:

char Ht[ 30] ; int Ngay, Thang, Nam ; char Gioi[ 4] ;

public:

Nguoi( ){

strcpy ( Ht, “ ”) ; Ngay = 0;

Thang = 0;

Nam = 0;

strcpy ( Gioi, “ Nam”) ; }

Nhanvien( char * ht1, int Ngay1, int Thang1, int Nam1, char * gioi1){

strcpy ( Ht, ht1) ; Ngay = Ngay1;

Thang = Thang1;

Nam = Nam1;

strcpy ( Gioi, gioi1) ; }

void Nhap( ){

cout << “Nhap Ho ten : ” ; cin.ignore( 1);

cin.get( Ht, 30);

cout << “Nhap nam sinh : ” ; cin >> Ngay >> Thang >> Nam ; cout << “Nhap Gioi tinh : ” ; cin.ignore( 1);

cin.get( Gioi, 4);

} void Xuat( ){

cout << “ \n Ho ten : ” << Ht;

cout << “\n Nam sinh : ” << Ngay << “ / ” << Thang << “ / ” << Nam; cout << “ \n Gioi tinh : ” << Gioi ;

} };

Class Giaovien : public Nguoi{

private:

char Bomon[ 20] ; char Monday[ 20] ; public:

Giaovien( ){

strcpy ( Bomon, “ ”) ; strcpy ( Monday, “ ”) ; }

Giaovien( char * B, char * M){

strcpy ( Bomon, B) ; strcpy ( Monday, M) ; }

void Nhap( ){

cout << “Nhap Bo mon : ” ; cin.ignore( 1);

cin.get( Bomon, 20);

cout << “Nhap Mon day : ” ; cin.ignore( 1);

cin.get( Monday, 20);

} void Xuat( ){

cout << “ \n Bo mon : ” << Bomon;

cout << “ \n Mon day : ” << Monday;

} };

void main(){

Giaovien a[ 100] ;

int i, n ;

clrscr ( ) ;

cout << “ \n Nhap so giao vien : ” ;

cin >> n;

cout << “ \n Nhap danh sach giao vien : ” ;

for ( i = 0, i < n, i ++){

cout << “ \n Nhap giao vien thu : ” << i << “\n” ; a[ i].Nhap();

a[ i].Xuat();

} getch();

}

Bai 7:

#

class Vector{

private:

int n ; fload x[ 100] ; public:

Vector operator + ( Vector v){

Vector v1 ; if( this -> n = v.n){

v1.n = v.n ; for( int i = 0; i< v.n; i ++)

v1.x[i] = this -> x[ i] + v x[ i] ; }

return v1 ; }

Vector operator - ( Vector v){

Vector v1 ; if( this -> n = v.n){

v1.n = v.n ; for( int i = 0; i< v.n; i ++)

v1.x[i] = this -> x[ i] - v x[ i] ; }

return v1 ;

} fload operator * ( Vector v){

fload t = 0;

if( this -> n == v.n)

for( int i = 0; i< v.n; i ++)

t = t + this -> x[ i] * v x[ i] ; return t ;

}

friend istream &operator >> ( istream & is, Vector &v ){

cout << “ Nhap so chieu : ” ;

is >> v.n ; for (int i = 0; i < v.n; i++){

cout << “ x[” << i << “ ] =” ;

is >> v.x[i] ; }

return is;

} friend ostream &operator >> (ostream & os, Vector &v ){

os << “ ( ” ; for (int i = 0; i < v.n - 1; i++)

os << v.x[ i] << “ ,” ;

os << v.x[ v.n - 1] << “ )” ; return os;

} };

void main(){

Vector v1, v2;

clrscr ;

cout << “ Nhap v1: ” ;

cin >> v1;

cout << “ Nhap v2: ” ;

cin >> v2;

cout << “ \n” << v1<< “ +” << v2 << “ =” v1+ v2 ;

cout << “ \n” << v1<< “ -” << v2 << “ =” v1- v2 ;

cout << “ \n” << v1<< “ *” << v2 << “ =” v1* v2 ;

getch() ;

}