ngo ngu lap trinh c++ bai tap

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Họ Và Tên: Nguyễn Văn Công

MSSV: 20140513

Lớp: ĐT-06

MODULE 1 Bài 1.1

#include <iostream>

#include <cstdlib>

using namespace std;

int main()

{

char c;

cout << “ nhap mot ki tu tu ban phim :”;

cin>>c;

cout<<c<<” -> Ma ASCII = “ << int(c)<<endl; cout<<c<<” -> Ma co so 8 = “<<oct<<int(c)<<endl; cout<<c<<” -> Ma co so 16 =”<<hex<<int(c)<<endl; system(“pause”);

}

Bài 1.2

#include <iostream>

#include <cstdlib>

#define PI 3.14159

using namespace std;

int main ()

{

float f,C;

cout<<”Nhap tan so f: “; cin>>f;

cout<<” Nhap dien dung C:” ; cin>>C;

cout << “ Dien khang Xc= “ <<1/(2*PI*f*C)<<endl;

system(“PAUSE”);

return 0;

}

Bài 1.3

#include <iostream>

#include <cstdlib>

using namespace std;

int main()

{

float R1,R2,R3,x;

cout<<” Nhap gia tri cho 3 dien tro” <<endl;

cout<<”R1=”;cin>>R1;

cout<<”R2=”;cin>>R2;

cout<<”R3=”;cin>>R3;

cout<<”Nhap kieu mac noi tiep an phim 1 song song an phim 2”<<endl; cin>>x;

while(x!=1&&x!=2)

{

cout<<”Nhap sai nhap lai: mac noi tiep an phim 1 song song an phim 2”<<endl;

cin>>x;

if(x==1)

cout<<”Rtd=”<<R1+R2+R3<<endl;

else

cout<<”Rtd=”<<1/(1/R1+1/R2+1/R3)<<endl;

system(“PAUSE”);

return 0;

}

Bài 2.1

#include <iostream>

#include <cstdlib>

using namespace std;

int main()

{

int n,i,x;

float R[20],Rss=0,Rnt=0;

do{

cout<<”Xin moi nhap so luong dien tri 0<N<20 :”<<endl; cin>>n;

if(n<=0||n>=20) cout<<” Ban nhap khong dung\n”;

}

while(n<=0||n>=20);

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

{

do

cout<<”R[“<<i+1<<”]=”;

cin>>R[i];

if(R[i]<=0) cout <<”nhap lai”<<endl;

}

while(R[i]<=0);

}

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

{

Rnt=Rnt+R[i];

Rss=Rss+1/R[i];

}

cout<<” Nhap kieu mac dien tro: Noi tiep an phim 1 song song an phim 2”<<endl;

cin>>x;

while(x!=1&&x!=2)

{

cout<<”Nhap sai nhap lai: Noi tiep an phim 1 song song an phim 2”<<endl; cin>>x;

}

if(x==1)

cout<<”Rnt=”<<Rnt<<endl;

else

cout<<”Rss=”<<Rss<<endl;

system(“PAUSE”);

return 0;

}

Bài 2.2

#include <iostream>

#include <cstdlib>

#include <stdio.h>

#include <string.h>

using namespace std;

int so_tu(char *s)

{

int i,d=0;

for(i=0;i<strlen(s);i++)

{

if(s[i]==' ' && i!=0 && s[i-1]!=' ') d++;

if(s[i+1]=='\0' && s[i]!=' ')

d++;

}

return d;

}

main(){

char s[200];

do{

cout<<"nhap xau s: ";fflush(stdin);gets(s); }

while(strlen(s)>=200);

int d=so_tu(s);

printf("\n chuoi s co so tu la %d ",d); system("PAUSE");

return EXIT_SUCCESS;

}

Bài 2.3

#include <iostream>

#include <cstdlib>

#include <stdio.h>

#include <string.h>

using namespace std;

int main()

{

float a[10][10];

float thang[10],tcot[10],tong=0;

int m,n,i,j;

cout<<"nhap kich thuoc mang: "<<endl; cout<<"so hang = "<<endl;

cin>>m;

cout<<"so cot ="<<endl;

cin>>n;

for (i=0;i<m;i++)

for (j=0;j<n;j++)

{

cout<<"a["<<i<<"]["<<j<<"]=";

cin>>a[i][j];

for (i=0;i<m;i++)

{

for (j=0;j<n;j++)

{

cout<<"a["<<i<<"]["<<j<<"]="<<a[i][j]<<'\t'; }

cout<<endl;

}

for (i=0;i<m;i++)

for (j=0;j<n;j++)

{

tong=tong+a[i][j];

}

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

{

thang[i]=0;

for (j=0;j<n;j++)

thang[i]=thang[i]+a[i][j];

}

cout<<"tong="<<tong<<endl;

for (i=0;i<m;i++)

cout <<"tong thang"<<i+1<<"="<<thang[i]<<endl; for (j=0;j<n;j++)

{

tcot[j]=0;

for (i=0;i<m;i++)

tcot[j]+=a[i][j];

}

for (j=0;j<m;j++)

cout<<"tong cot ="<<j+1<<"="<<tcot[j]<<endl;

system("PAUSE");

}

Yêu cầu về nhà Bài 1

#include <cstdlib>

#include <iostream>

#include <conio.h>

#include <stdio.h>

using namespace std;

long Factorial(int n)

{

float gt=1;

if(n==0) {return 1;}

else {gt=Factorial(n-1)*n;}

return gt;

}

int main(int argc, char *argv[])

{

int n;

long a;

do

{

cout<<"Nhap so can tinh giai thua N = ";cin>>n; }

while(n<0);

a=Factorial(n);

printf("%d! = %d \n ",n,a);

system("PAUSE");

return EXIT_SUCCESS;

}

Bài 2

#include <cstdlib>

#include <iostream>

#include <conio.h>

#include <stdio.h>

using namespace std;

long Factorial(int n)

{

float gt=1;

if(n==0) {return 1;}

else {gt=Factorial(n-1)*n;}

return gt;

}

int main(int argc, char *argv[])

{

int n;

long a;

do

{

cout<<"Nhap so can tinh giai thua N = ";cin>>n;

while(n<0);

a=Factorial(n);

printf("%d! = %d \n ",n,a);

system("PAUSE");

return EXIT_SUCCESS;

}

Bài 3

#include <cstdlib>

#include <iostream>

#include <conio.h>

#include <stdio.h>

using namespace std;

int USCLN(int&x,int&y)

{

if(x==y){return x;}

else if(x>y){x=x-y;}

else y=y-x;

USCLN(x,y);

if(x==y){return x;}

}

int main(int argc,char*argv[])

{

int a,b,c,d,e;

do

{

cout<<"Nhap a"<<endl;

cin>>a;

}

while(a<=0);

do

{

cout<<"Nhap b"<<endl;

cin>>b;

}

while(b<=0);

d=a;e=b;

c=USCLN(a,b);

printf("USCLN(%d,%d)=%d\n",d,e,c); system("PAUSE");

return EXIT_SUCCESS;

}

Bài 4

#include <cstdlib>

#include <iostream>

#include <conio.h>

#include <stdio.h>

using namespace std;

float Pow(double x,int n)

{float mu=1;

if(n==0){return 1;}

else{mu=Pow(x,n-1)*x;}

return mu;}

float Value(float A[],int n,float x0)

{int i;

float f=0;

for (i=0;i<=n;i++) f=f+Pow(x0,i)*A[i];

return f;

}

int main(int argc,char*argv[])

{

int n,i,j;

do

{

cout<<"Nhap n="<<endl;

cin>>n;

}

while(n<=0);

float x,fx,A[n];

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

{printf("A[%d]=",i);

cin>>A[i];

}

cout<<"Nhap gia tri x0="<<endl;

cin>>x;

fx=Value(A,n,x);

printf("f(x0)=%6.2f\n ",fx);

system ("PAUSE");

return EXIT_SUCCESS;

}

MODULE 2 Bài

#include <iostream>

using namespace std;

class Complex

private: double re,im;

public:

Complex(double r=0, double i=0): re(r), im(i) {}

Complex(Complex &c): re(c.re), im(c.im) {}

public:

Complex operator + (Complex c);

Complex operator - (Complex c);

Complex operator * (Complex c);

Complex operator / (Complex c);

Complex operator + (double a);

public:

friend ostream &operator<<(ostream &out, Complex &c) {

return (out <<"("<<c.re<<","<<c.im<<"i) ");

}

};

Complex Complex::operator + (Complex c)

{

Complex C;

C.re = this->re + c.re;

C.im = this->im + c.im;

return C;

}

Complex Complex::operator -(Complex c)

{

Complex C;

C.re = this->re - c.re;

C.im = this->im - c.im;

return C;

}

Complex Complex::operator *(Complex c)

{

Complex C;

C.re = this->re*c.re - this->im*c.im;

C.im = this->im*c.re + this->re*c.im;

return C;

}

Complex Complex::operator /(Complex c)

{

Complex C;

C.re = (this->re*c.re + this->im*c.im)/(c.re*c.re + c.im*c.im); C.im = (this->im*c.re - this->re*c.im)/(c.re*c.re + c.im*c.im); return C;

}

Complex Complex::operator +(double a)

{

Complex C;

C.re = this->re + a; C.im = this->im;

return C;

}

int main(int argc, char** argv) {

Complex y(1,2),z(3,4);

double a=1.5;

Complex tong,hieu,tich,thuong;

tong=y+z+a; cout<<y<<" + "<<z<<" = "<<tong<<endl;

hieu=y-z; cout<<y<<" - "<<z<<" = "<<hieu<<endl;

tich=y*z; cout<<y<<" * "<<z<<" = "<<tich<<endl;

thuong=y/z; cout<<y<<" / "<<z<<" = "<<thuong<<endl; return 0;

}

Bài 2

#include <iostream>

#include <string.h>

using namespace std;

class String

{

private:

int lenght;

char *data;

private:

String (int lenght, char *data):lenght(lenght),data(data) {} public:

String(): lenght(0), data(new char[1]) { data[0]=0; }

String(const char*s)

{

lenght = strlen(s);

data = new char [lenght +1];

strcpy(data,s);

}

String(const String &s):lenght(s.lenght),data(s.data) {}

~String() {delete[] data;}

public:

int Compare (String s)

{

int r=strcmp(data,s.data);

if(r>0) return 1;

if(r<0) return -1;

return 0;

}

public:

char &operator[] (int index) { return data[index]; }

String &operator = (String &s);

String operator + (char c);

String operator + (String s);

public:

int operator == (String s);

int operator != (String s);

friend ostream &operator << (ostream &out, const String &s) {

return out << s.data;

}

};

String &String::operator = (String &s)

delete[] data;

lenght = s.lenght;

data = new char [lenght + 1];

strcpy (data, s.data);

return (*this);

}

String String::operator + (char c)

{

int lenght = this->lenght + 1;

char *data = new char [lenght +1];

strcpy (data, this->data);

data[this->lenght] = c;

data[lenght]=0;

return String(lenght,data);

}

String String::operator + (String s)

{

int lenght=this->lenght+s.lenght;

char *data=new char [lenght+1];

strcpy(data,this->data);

strcat(data,s.data);

return String(lenght,data);

}

int String::operator==(String s)

{

return strcmp(data,s.data);

}

int String::operator!=(String s)

{

return (!strcmp(data,s.data));

}

int main(int argc, char** argv) {

String s("Tu hao la sinh vien Bach Khoa");

char ch='a';

cout<<s<<" + "<<ch<<" = "<<s+ch<<endl;

String ss("Ha Noi");

cout<<s<<" + "<<ch<<" + "<<ss<<" = "<<s+ch+ss<<endl; return 0;

}