這是Herr Deng桑的教學blog，主要處理作業與班導事務，另外還有數位小品。
#include <iostream>#include <cstdlib>#include <random>#include <ctime>#include <iomanip>using namespace std;mt19937 gen;uniform_real_distribution<double> X;void gen_matrix( double** a, int m, int n){// a = new double*[m]; for (int i=0 ; i<m ; i++) { a[i] = new double[n]; for (int j=0 ; j<n ; j++) { a[i][j]=X(gen); cout <<setw(15)<<setprecision(10)<<a[i][j]; } cout<<endl; } }void del_matrix( double** a, int m){ for( int i=0; i<m; i++) delete [] a[i]; delete [] a; a=NULL; cout << "deleted\n";}void matrix_mul(double** a, double** b, double** c, int m, int n, int p){// c = new double*[m]; for (int i=0 ; i<m ; i++) { c[i] = new double[n]; for (int j=0 ; j<n; j++) { c[i][j]=0; for(int k=0; k<p; k++) c[i][j]+=a[i][k]*b[k][j]; cout <<setw(15)<<setprecision(10)<<c[i][j]; } cout<<endl; } }int main( ){ gen= mt19937(clock()); X = uniform_real_distribution<double>(0, 10); double **a=new double*[3], **b=new double*[4]; cout<<"a=\n"; gen_matrix( a, 3, 4); cout<<"==================\nb=\n"; gen_matrix( b, 4, 3); cout<<"==================\nc=a*b=\n"; double **c = new double*[3]; matrix_mul(a, b, c, 3, 3, 4); del_matrix(a, 3); del_matrix(b, 4); del_matrix(c, 3); system("Pause"); return 0;}
#include <iostream>#include <random>#include <ctime>using namespace std;class person{ double height,weight;public: person(){} person(double height,double weight){ this->height=height; this->weight=weight; } double bmi(){ return 10000*weight/height/height; } void print(int i){ cout<<i<<":\t"; cout<<"height="<<height<<"\t"; cout<<"weight="<<weight<<"\t"; cout<<"bmi="<<bmi()<<endl; }};int main(){ person X[30]; mt19937_64 gen(clock()); normal_distribution<double> dis0(163, 7); normal_distribution<double> dis1(55, 5); for(int i=0;i<30;i++){ double h=dis0(gen); double w=dis0(gen); X[i]=person(h,w); X[i].print(i); } return 0;}
#include #include #include using namespace std;class person{ double height, weight;public: person(){} person(double height,double weight){ this->height=height; this->weight=weight; } double bmi(){ return 10000*weight/height/height;}void print(int i){ cout<<i<<":\t"; cout<<"height="<<height<<"\t"; cout<<"height="<<height<<"\t"; cout<<"bmi="<<bmi()<<endl;}};int main(){ person x[30]; mt19937_64 gen(clock()); normal_distribution<double>dis0(163,7); normal_distribution<double>dis1(55,5); for(int i=0;i<30; i++){ double h=dis0(gen); double w=dis1(gen); x[i]=person(h,w); x[i].print(i); }}
#include #include #include using namespace std;class person{double height, weight;public:person(){}person(double height,double weight){this->height=height;this->weight=weight;} double bmi(){return 10000*weight/height/height;}void print(int i){cout<<i<<":\t";cout<<"height="<<height<<"\t";cout<<"height="<<height<<"\t";cout<<"bmi="<<bmi()<<endl;}};int main(){person x[30];mt19937_64 gen(clock());normal_distribution<double>dis0(163,7);normal_distribution<double>dis1(55,5);for(int i=0;i<30; i++){double h=dis0(gen);double w=dis1(gen);x[i]=person(h,w);x[i].print(i);}}
#include #include #include #include #include using namespace std;mt19937 gen;uniform_real_distribution X;void gen_matrix( double** a, int m, int n){// a = new double*[m];for (int i=0 ; i(0, 10);double **a=new double*[3], **b=new double*[4];cout<<"a=\n";gen_matrix( a, 3, 4);cout<<"==================\nb=\n";gen_matrix( b, 4, 3);cout<<"==================\nc=a*b=\n";double **c = new double*[3];matrix_mul(a, b, c, 3, 3, 4);del_matrix(a, 3);del_matrix(b, 4);del_matrix(c, 3);system("Pause");return 0;}
#include <iostream>#include <cstdlib>#include <random>#include <ctime>#include <iomanip>using namespace std;mt19937 gen;uniform_real_distribution<double> X;void gen_matrix( double** a, int m, int n){// a = new double*[m];for (int i=0 ; i<m ; i++){a[i] = new double[n];for (int j=0 ; j<n ; j++){a[i][j]=X(gen);cout <<setw(15)<<setprecision(10)<<a[i][j];}cout<<endl;} }void del_matrix( double** a, int m){for( int i=0; i<m; i++)delete [] a[i];delete [] a;a=NULL;cout << "deleted\n";}void matrix_mul(double** a, double** b, double** c, int m, int n, int p){// c = new double*[m];for (int i=0 ; i<m ; i++){c[i] = new double[n];for (int j=0 ; j<n; j++){c[i][j]=0;for(int k=0; k<p; k++)c[i][j]+=a[i][k]*b[k][j];cout <<setw(15)<<setprecision(10)<<c[i][j];}cout<<endl;}}int main( ){gen= mt19937(clock());X = uniform_real_distribution<double>(0, 10);double **a=new double*[3], **b=new double*[4];cout<<"a=\n";gen_matrix( a, 3, 4);cout<<"==================\nb=\n";gen_matrix( b, 4, 3);cout<<"==================\nc=a*b=\n";double **c = new double*[3];matrix_mul(a, b, c, 3, 3, 4);del_matrix(a, 3);del_matrix(b, 4);del_matrix(c, 3);system("Pause");return 0;}
張貼留言
請用CPU-Z軟體檢測Cache & Memory 註：快取（L1-L3: SRAM） 第一級快取（L1）–通常存取只需要幾個週期，通常是幾十個KB。 第二級快取（L2）–比L1約有2到10倍較高延遲性，通常是幾百個KB或更多。 第三級快取（L3）（不...
14 則留言:
#include <iostream>
#include <cstdlib>
#include <random>
#include <ctime>
#include <iomanip>
using namespace std;
mt19937 gen;
uniform_real_distribution<double> X;
void gen_matrix( double** a, int m, int n){
// a = new double*[m];
for (int i=0 ; i<m ; i++)
{
a[i] = new double[n];
for (int j=0 ; j<n ; j++)
{
a[i][j]=X(gen);
cout <<setw(15)<<setprecision(10)<<a[i][j];
}
cout<<endl;
}
}
void del_matrix( double** a, int m){
for( int i=0; i<m; i++)
delete [] a[i];
delete [] a;
a=NULL;
cout << "deleted\n";
}
void matrix_mul(double** a, double** b, double** c, int m, int n, int p){
// c = new double*[m];
for (int i=0 ; i<m ; i++)
{
c[i] = new double[n];
for (int j=0 ; j<n; j++)
{
c[i][j]=0;
for(int k=0; k<p; k++)
c[i][j]+=a[i][k]*b[k][j];
cout <<setw(15)<<setprecision(10)<<c[i][j];
}
cout<<endl;
}
}
int main( )
{
gen= mt19937(clock());
X = uniform_real_distribution<double>(0, 10);
double **a=new double*[3], **b=new double*[4];
cout<<"a=\n";
gen_matrix( a, 3, 4);
cout<<"==================\nb=\n";
gen_matrix( b, 4, 3);
cout<<"==================\nc=a*b=\n";
double **c = new double*[3];
matrix_mul(a, b, c, 3, 3, 4);
del_matrix(a, 3);
del_matrix(b, 4);
del_matrix(c, 3);
system("Pause");
return 0;
}
#include <iostream>
#include <cstdlib>
#include <random>
#include <ctime>
#include <iomanip>
using namespace std;
mt19937 gen;
uniform_real_distribution<double> X;
void gen_matrix( double** a, int m, int n){
// a = new double*[m];
for (int i=0 ; i<m ; i++)
{
a[i] = new double[n];
for (int j=0 ; j<n ; j++)
{
a[i][j]=X(gen);
cout <<setw(15)<<setprecision(10)<<a[i][j];
}
cout<<endl;
}
}
void del_matrix( double** a, int m){
for( int i=0; i<m; i++)
delete [] a[i];
delete [] a;
a=NULL;
cout << "deleted\n";
}
void matrix_mul(double** a, double** b, double** c, int m, int n, int p){
// c = new double*[m];
for (int i=0 ; i<m ; i++)
{
c[i] = new double[n];
for (int j=0 ; j<n; j++)
{
c[i][j]=0;
for(int k=0; k<p; k++)
c[i][j]+=a[i][k]*b[k][j];
cout <<setw(15)<<setprecision(10)<<c[i][j];
}
cout<<endl;
}
}
int main( )
{
gen= mt19937(clock());
X = uniform_real_distribution<double>(0, 10);
double **a=new double*[3], **b=new double*[4];
cout<<"a=\n";
gen_matrix( a, 3, 4);
cout<<"==================\nb=\n";
gen_matrix( b, 4, 3);
cout<<"==================\nc=a*b=\n";
double **c = new double*[3];
matrix_mul(a, b, c, 3, 3, 4);
del_matrix(a, 3);
del_matrix(b, 4);
del_matrix(c, 3);
system("Pause");
return 0;
}
#include <iostream>
#include <cstdlib>
#include <random>
#include <ctime>
#include <iomanip>
using namespace std;
mt19937 gen;
uniform_real_distribution<double> X;
void gen_matrix( double** a, int m, int n){
// a = new double*[m];
for (int i=0 ; i<m ; i++)
{
a[i] = new double[n];
for (int j=0 ; j<n ; j++)
{
a[i][j]=X(gen);
cout <<setw(15)<<setprecision(10)<<a[i][j];
}
cout<<endl;
}
}
void del_matrix( double** a, int m){
for( int i=0; i<m; i++)
delete [] a[i];
delete [] a;
a=NULL;
cout << "deleted\n";
}
void matrix_mul(double** a, double** b, double** c, int m, int n, int p){
// c = new double*[m];
for (int i=0 ; i<m ; i++)
{
c[i] = new double[n];
for (int j=0 ; j<n; j++)
{
c[i][j]=0;
for(int k=0; k<p; k++)
c[i][j]+=a[i][k]*b[k][j];
cout <<setw(15)<<setprecision(10)<<c[i][j];
}
cout<<endl;
}
}
int main( )
{
gen= mt19937(clock());
X = uniform_real_distribution<double>(0, 10);
double **a=new double*[3], **b=new double*[4];
cout<<"a=\n";
gen_matrix( a, 3, 4);
cout<<"==================\nb=\n";
gen_matrix( b, 4, 3);
cout<<"==================\nc=a*b=\n";
double **c = new double*[3];
matrix_mul(a, b, c, 3, 3, 4);
del_matrix(a, 3);
del_matrix(b, 4);
del_matrix(c, 3);
system("Pause");
return 0;
}
#include <iostream>
#include <random>
#include <ctime>
using namespace std;
class person{
double height,weight;
public:
person(){}
person(double height,double weight){
this->height=height;
this->weight=weight;
}
double bmi(){
return 10000*weight/height/height;
}
void print(int i){
cout<<i<<":\t";
cout<<"height="<<height<<"\t";
cout<<"weight="<<weight<<"\t";
cout<<"bmi="<<bmi()<<endl;
}
};
int main()
{
person X[30];
mt19937_64 gen(clock());
normal_distribution<double> dis0(163, 7);
normal_distribution<double> dis1(55, 5);
for(int i=0;i<30;i++){
double h=dis0(gen);
double w=dis0(gen);
X[i]=person(h,w);
X[i].print(i);
}
return 0;
}
#include <iostream>
#include <random>
#include <ctime>
using namespace std;
class person{
double height,weight;
public:
person(){}
person(double height,double weight){
this->height=height;
this->weight=weight;
}
double bmi(){
return 10000*weight/height/height;
}
void print(int i){
cout<<i<<":\t";
cout<<"height="<<height<<"\t";
cout<<"weight="<<weight<<"\t";
cout<<"bmi="<<bmi()<<endl;
}
};
int main()
{
person X[30];
mt19937_64 gen(clock());
normal_distribution<double> dis0(163, 7);
normal_distribution<double> dis1(55, 5);
for(int i=0;i<30;i++){
double h=dis0(gen);
double w=dis0(gen);
X[i]=person(h,w);
X[i].print(i);
}
return 0;
}
#include <iostream>
#include <cstdlib>
#include <random>
#include <ctime>
#include <iomanip>
using namespace std;
mt19937 gen;
uniform_real_distribution<double> X;
void gen_matrix( double** a, int m, int n){
// a = new double*[m];
for (int i=0 ; i<m ; i++)
{
a[i] = new double[n];
for (int j=0 ; j<n ; j++)
{
a[i][j]=X(gen);
cout <<setw(15)<<setprecision(10)<<a[i][j];
}
cout<<endl;
}
}
void del_matrix( double** a, int m){
for( int i=0; i<m; i++)
delete [] a[i];
delete [] a;
a=NULL;
cout << "deleted\n";
}
void matrix_mul(double** a, double** b, double** c, int m, int n, int p){
// c = new double*[m];
for (int i=0 ; i<m ; i++)
{
c[i] = new double[n];
for (int j=0 ; j<n; j++)
{
c[i][j]=0;
for(int k=0; k<p; k++)
c[i][j]+=a[i][k]*b[k][j];
cout <<setw(15)<<setprecision(10)<<c[i][j];
}
cout<<endl;
}
}
int main( )
{
gen= mt19937(clock());
X = uniform_real_distribution<double>(0, 10);
double **a=new double*[3], **b=new double*[4];
cout<<"a=\n";
gen_matrix( a, 3, 4);
cout<<"==================\nb=\n";
gen_matrix( b, 4, 3);
cout<<"==================\nc=a*b=\n";
double **c = new double*[3];
matrix_mul(a, b, c, 3, 3, 4);
del_matrix(a, 3);
del_matrix(b, 4);
del_matrix(c, 3);
system("Pause");
return 0;
}
#include
#include
#include
using namespace std;
class person{
double height, weight;
public:
person(){}
person(double height,double weight){
this->height=height;
this->weight=weight;
}
double bmi(){
return 10000*weight/height/height;
}
void print(int i){
cout<<i<<":\t";
cout<<"height="<<height<<"\t";
cout<<"height="<<height<<"\t";
cout<<"bmi="<<bmi()<<endl;
}
};
int main()
{
person x[30];
mt19937_64 gen(clock());
normal_distribution<double>dis0(163,7);
normal_distribution<double>dis1(55,5);
for(int i=0;i<30; i++){
double h=dis0(gen);
double w=dis1(gen);
x[i]=person(h,w);
x[i].print(i);
}
}
#include
#include
#include
using namespace std;
class person{
double height, weight;
public:
person(){}
person(double height,double weight){
this->height=height;
this->weight=weight;
}
double bmi(){
return 10000*weight/height/height;
}
void print(int i){
cout<<i<<":\t";
cout<<"height="<<height<<"\t";
cout<<"height="<<height<<"\t";
cout<<"bmi="<<bmi()<<endl;
}
};
int main()
{
person x[30];
mt19937_64 gen(clock());
normal_distribution<double>dis0(163,7);
normal_distribution<double>dis1(55,5);
for(int i=0;i<30; i++){
double h=dis0(gen);
double w=dis1(gen);
x[i]=person(h,w);
x[i].print(i);
}
}
#include
#include
#include
using namespace std;
class person{
double height, weight;
public:
person(){}
person(double height,double weight){
this->height=height;
this->weight=weight;
}
double bmi(){
return 10000*weight/height/height;
}
void print(int i){
cout<<i<<":\t";
cout<<"height="<<height<<"\t";
cout<<"height="<<height<<"\t";
cout<<"bmi="<<bmi()<<endl;
}
};
int main()
{
person x[30];
mt19937_64 gen(clock());
normal_distribution<double>dis0(163,7);
normal_distribution<double>dis1(55,5);
for(int i=0;i<30; i++){
double h=dis0(gen);
double w=dis1(gen);
x[i]=person(h,w);
x[i].print(i);
}
}
#include <iostream>
#include <cstdlib>
#include <random>
#include <ctime>
#include <iomanip>
using namespace std;
mt19937 gen;
uniform_real_distribution<double> X;
void gen_matrix( double** a, int m, int n){
// a = new double*[m];
for (int i=0 ; i<m ; i++)
{
a[i] = new double[n];
for (int j=0 ; j<n ; j++)
{
a[i][j]=X(gen);
cout <<setw(15)<<setprecision(10)<<a[i][j];
}
cout<<endl;
}
}
void del_matrix( double** a, int m){
for( int i=0; i<m; i++)
delete [] a[i];
delete [] a;
a=NULL;
cout << "deleted\n";
}
void matrix_mul(double** a, double** b, double** c, int m, int n, int p){
// c = new double*[m];
for (int i=0 ; i<m ; i++)
{
c[i] = new double[n];
for (int j=0 ; j<n; j++)
{
c[i][j]=0;
for(int k=0; k<p; k++)
c[i][j]+=a[i][k]*b[k][j];
cout <<setw(15)<<setprecision(10)<<c[i][j];
}
cout<<endl;
}
}
int main( )
{
gen= mt19937(clock());
X = uniform_real_distribution<double>(0, 10);
double **a=new double*[3], **b=new double*[4];
cout<<"a=\n";
gen_matrix( a, 3, 4);
cout<<"==================\nb=\n";
gen_matrix( b, 4, 3);
cout<<"==================\nc=a*b=\n";
double **c = new double*[3];
matrix_mul(a, b, c, 3, 3, 4);
del_matrix(a, 3);
del_matrix(b, 4);
del_matrix(c, 3);
system("Pause");
return 0;
}
#include
#include
#include
using namespace std;
class person{
double height, weight;
public:
person(){}
person(double height,double weight){
this->height=height;
this->weight=weight;
}
double bmi(){
return 10000*weight/height/height;
}
void print(int i){
cout<<i<<":\t";
cout<<"height="<<height<<"\t";
cout<<"height="<<height<<"\t";
cout<<"bmi="<<bmi()<<endl;
}
};
int main()
{
person x[30];
mt19937_64 gen(clock());
normal_distribution<double>dis0(163,7);
normal_distribution<double>dis1(55,5);
for(int i=0;i<30; i++){
double h=dis0(gen);
double w=dis1(gen);
x[i]=person(h,w);
x[i].print(i);
}
}
#include
#include
#include
using namespace std;
class person{
double height, weight;
public:
person(){}
person(double height,double weight){
this->height=height;
this->weight=weight;
}
double bmi(){
return 10000*weight/height/height;
}
void print(int i){
cout<<i<<":\t";
cout<<"height="<<height<<"\t";
cout<<"height="<<height<<"\t";
cout<<"bmi="<<bmi()<<endl;
}
};
int main()
{
person x[30];
mt19937_64 gen(clock());
normal_distribution<double>dis0(163,7);
normal_distribution<double>dis1(55,5);
for(int i=0;i<30; i++){
double h=dis0(gen);
double w=dis1(gen);
x[i]=person(h,w);
x[i].print(i);
}
}
#include
#include
#include
#include
#include
using namespace std;
mt19937 gen;
uniform_real_distribution X;
void gen_matrix( double** a, int m, int n){
// a = new double*[m];
for (int i=0 ; i(0, 10);
double **a=new double*[3], **b=new double*[4];
cout<<"a=\n";
gen_matrix( a, 3, 4);
cout<<"==================\nb=\n";
gen_matrix( b, 4, 3);
cout<<"==================\nc=a*b=\n";
double **c = new double*[3];
matrix_mul(a, b, c, 3, 3, 4);
del_matrix(a, 3);
del_matrix(b, 4);
del_matrix(c, 3);
system("Pause");
return 0;
}
#include <iostream>
#include <cstdlib>
#include <random>
#include <ctime>
#include <iomanip>
using namespace std;
mt19937 gen;
uniform_real_distribution<double> X;
void gen_matrix( double** a, int m, int n){
// a = new double*[m];
for (int i=0 ; i<m ; i++)
{
a[i] = new double[n];
for (int j=0 ; j<n ; j++)
{
a[i][j]=X(gen);
cout <<setw(15)<<setprecision(10)<<a[i][j];
}
cout<<endl;
}
}
void del_matrix( double** a, int m){
for( int i=0; i<m; i++)
delete [] a[i];
delete [] a;
a=NULL;
cout << "deleted\n";
}
void matrix_mul(double** a, double** b, double** c, int m, int n, int p){
// c = new double*[m];
for (int i=0 ; i<m ; i++)
{
c[i] = new double[n];
for (int j=0 ; j<n; j++)
{
c[i][j]=0;
for(int k=0; k<p; k++)
c[i][j]+=a[i][k]*b[k][j];
cout <<setw(15)<<setprecision(10)<<c[i][j];
}
cout<<endl;
}
}
int main( )
{
gen= mt19937(clock());
X = uniform_real_distribution<double>(0, 10);
double **a=new double*[3], **b=new double*[4];
cout<<"a=\n";
gen_matrix( a, 3, 4);
cout<<"==================\nb=\n";
gen_matrix( b, 4, 3);
cout<<"==================\nc=a*b=\n";
double **c = new double*[3];
matrix_mul(a, b, c, 3, 3, 4);
del_matrix(a, 3);
del_matrix(b, 4);
del_matrix(c, 3);
system("Pause");
return 0;
}
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