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C++用 -1 mask法達到branchless解Leetcode1513 Number of Substrings With Only 1s|Py3 1-liner 其實很容易，想練功，試試一行解，或是把if分岔拿掉 [C++無分岔解請進]
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計算你上學期加權平均
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請用C/C++ 程式計算 S=1*1+2*2+3*3+4*4+.....+20*20=?
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問int怎麼存-689這個數字。 int用4個bytes。 答案請用16進位表達。
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計算你的BMI
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何謂演算法?並列出一無窮迴圈的範例!
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將費氏數列輸出至一long 陣列 其中f[0]=1, f[1]=2, f[n]=f[n-1]+f[n-2] (n>=2)
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算上學期加權平均
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請問你所使的電腦，CPU的規格 Cache多大？其他硬體配置...... 另外， "INTEL® XEON PHI™ 處理器 7230F"的大致規格為？
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列印課表數字代碼矩陣，以及代碼的課名 提示： 參考此連結
14 則留言:
#include<iostream>
#include<cstdlib>
#include<cstring>
using namespace std;
#define row 4
#define col 3
class Matrix {
public:
double term[row][col];
Matrix() { memset(term, 0, sizeof(term)); }
Matrix(double a[row][col]) {
for (int i = 0;i < row;i++) {
for (int j = 0;j < col;j++)
term[i][j] = a[i][j];
}
}
double&operator()(int i, int j) {
return term[i][j];
}
void print() {
cout << "--------------------\n";
for (int i = 0;i < row;i++) {
for (int j = 0;j < col;j++) {
cout << term[i][j] << "\t";
}
cout << endl;
}
}
friend Matrix& operator+(Matrix A, Matrix B) {
Matrix C;
for (int i = 0;i < row;i++) {
for (int j = 0;j < col;j++)
C.term[i][j] = A(i, j) + B(i, j);
}
return C;
}
friend Matrix& operator*(double r, Matrix A) {
Matrix M;
for (int i = 0;i < row;i++) {
for (int j = 0;j < col;j++)
M.term[i][j] = r*A(i, j);
}
return M;
}
};
int main()
{
double a[4][3] = { {1,2,3},{4,5,6},{7,8,9},{10,11,12}};
double b[4][3] = { {0,2,3},{0,1,1},{0,1,2},{2,3,5}};
Matrix A(a), B(b);
A.print();
B.print();
Matrix C = A + B;
C.print();
Matrix M = 2.0*A;
M.print();
system("Pause");
return 0;
}
class Matrix {
public:
double term[row][col];
Matrix() { memset(term, 0, sizeof(term)); }
Matrix(double a[row][col]) {
for (int i = 0; i < row; i++) {
for (int j = 0; j < col; j++)
term[i][j] = a[i][j];
}
}
double& operator()(int i, int j) {
return term[i][j];
}
void print() {
cout << "----------------\n";
for (int i = 0; i < row; i++) {
for (int j = 0; j < col; j++) {
cout << term[i][j] << "\t";
}
cout << endl;
}
}
friend Matrix& operator+(Matrix A, Matrix B) {
Matrix C;
for (int i = 0; i < row; i++) {
for (int j = 0; j < col; j++)
C.term[i][j] = A(i, j) + B(i, j);
}
return C;
}
friend Matrix& operator*(double r, Matrix A) {
Matrix C;
for (int i = 0; i < row; i++) {
for (int j = 0; j < col; j++)
C.term[i][j] = r*A(i, j) ;
}
return C;
}
};
public:
double term[row][col];
Matrix() { memset(term, 0, sizeof(term)); }
Matrix(double a[row][col]) {
for (int i = 0;i < row;i++) {
for (int j = 0;j < col;j++) {
term[i][j] = a[i][j];
}
}
}
double& operator()(int i, int j) {
return term[i][j];
}
void print() {
cout << "====================\n";
for (int i = 0;i < row;i++) {
for (int j = 0;j < col;j++) {
cout << term[i][j] << "\t";
}
cout << endl;
}
}
friend Matrix&operator+(Matrix A, Matrix B) {
Matrix C;
for (int i = 0;i < row;i++) {
for (int j = 0;j < col;j++)
C(i, j) = A(i, j) + B(i, j);
}
return C;
}
friend Matrix&operator*(double r, Matrix A) {
Matrix C;
for (int i = 0;i < row;i++) {
for (int j = 0;j < col;j++)
C.term[i][j] = r*A(i,j);
}
return C;
}
};
int main()
{
double a[3][3] = { { 1,2,3 },{ 4,5,6 },{ 7,8,9 } };
double b[3][3] = { { 4,5,6 },{ 7,8,9 },{ 1,2,3 } };
Matrix A(a), B(b);
A.print();
B.print();
Matrix C = A + B;
C.print();
C = 3.0*A;
C.print();
system("Pause");
return 0;
}
#include
#include
#include
using namespace std;
#define row 3
#define col 3
class Matrix {
public:
double term[row][col];
Matrix() { memset(term, 0, sizeof(term)); }
Matrix(double a[row][col]) {
for (int i = 0;i < row; i++) {
for (int j = 0;j < col; j++)
term[i][j] = a[i][j];
}
}
double& operator()(int i, int j) {
return term[i][j];
}
void print() {
for (int i = 0;i < row;i++) {
for (int j = 0;j < col; j++) {
cout << term[i][j] << "\t";
}
cout << endl;
}
}
};
Matrix&operator+(Matrix A, Matrix B) {
Matrix C;
for (int i = 0;i < row; i++) {
for (int j = 0;j < col; j++)
C.term[i][j] = A(i, j)*2 + B(i, j)*2;
}
return C;
}
int main() {
double a[3][3] = { {1,2,3},{4,5,6},{7,8,9} };
double b[3][3] = { {4,5,6 }, { 7,8,9 }, { 1,2,3 }};
Matrix A(a), B(b);
A.print();
B.print();
Matrix C = A + B;
C.print();
system("Pause");
return 0;
};
#include
#include
#include
using namespace std;
#define row 3
#define col 3
class Matrix {
public:
double term[row][col];
Matrix() { memset(term, 0, sizeof(term)); }
Matrix(double a[row][col]) {
for (int i = 0;i < row; i++) {
for (int j = 0;j < col; j++)
term[i][j] = a[i][j];
}
}
double& operator()(int i, int j) {
return term[i][j];
}
void print() {
for (int i = 0;i < row;i++) {
for (int j = 0;j < col; j++) {
cout << term[i][j] << "\t";
}
cout << endl;
}
}
};
Matrix&operator+(Matrix A, Matrix B) {
Matrix C;
for (int i = 0;i < row; i++) {
for (int j = 0;j < col; j++)
C.term[i][j] = A(i, j)*2 + B(i, j)*2;
}
return C;
}
int main() {
double a[3][3] = { {1,2,3},{4,5,6},{7,8,9} };
double b[3][3] = { {4,5,6 }, { 7,8,9 }, { 1,2,3 }};
Matrix A(a), B(b);
A.print();
B.print();
Matrix C = A + B;
C.print();
system("Pause");
return 0;
};
#include
#include
#include
using namespace std;
#define row 3
#define col 3
class Matrix {
public:
double term[row][col];
Matrix() { memset(term, 0, sizeof(term)); }
Matrix(double a[row][col]) {
for (int i = 0;i < row; i++) {
for (int j = 0;j < col; j++)
term[i][j] = a[i][j];
}
}
double& operator()(int i, int j) {
return term[i][j];
}
void print() {
for (int i = 0;i < row;i++) {
for (int j = 0;j < col; j++) {
cout << term[i][j] << "\t";
}
cout << endl;
}
}
};
Matrix&operator+(Matrix A, Matrix B) {
Matrix C;
for (int i = 0;i < row; i++) {
for (int j = 0;j < col; j++)
C.term[i][j] = A(i, j)*2 + B(i, j)*2;
}
return C;
}
int main() {
double a[3][3] = { {1,2,3},{4,5,6},{7,8,9} };
double b[3][3] = { {4,5,6 }, { 7,8,9 }, { 1,2,3 }};
Matrix A(a), B(b);
A.print();
B.print();
Matrix C = A + B;
C.print();
system("Pause");
return 0;
};
#include <iostream>
#include <cstdlib>
#include <cstring>
using namespace std;
#define row 3
#define col 3
class Matrix
{
public:
double term[row][col];
Matrix() { memset(term, 0, sizeof(term)); }
Matrix(double a[row][col]) {
for (int i = 0;i < row;i++) {
for (int j = 0;j < col;j++)
term[i][j] = a[i][j];
}
}
double& operator()(int i, int j) {
return term[i][j];
}
void print() {
cout << "=================\n";
for (int i = 0;i < row;i++) {
for (int j = 0;j < col;j++)
{
cout << term[i][j] << "\t";
}
cout << endl;
}
}
void R(int q) {
cout << "=================\n";
for (int i = 0;i < row;i++) {
for (int j = 0;j < col;j++)
{
cout << term[i][j] * q << "\t";
}
cout << endl;
}
}
friend Matrix&operator+(Matrix A, Matrix B) {
Matrix C;
for (int i = 0;i < row;i++) {
for (int j = 0;j < col;j++)
C.term[i][j] = A(i, j) + B(i, j);
}
return C;
}
friend Matrix&operator*(Matrix A, Matrix B)
{
Matrix C;
for (int i = 0;i < row;i++) {
for (int j = 0;j < col;j++) {
C(i, j) = 0;
for (int k = 0;k < 3;k++)
C(i, j) += A(i, k)*B(k, j);
}
}
return C;
}
};
int main() {
double a[3][3] = { {1,2,3},{4,5,6},{7,8,9 }
};
double b[3][3] = { {4,5,6 }, { 7,8,9 }, { 1,2,3 }
};
Matrix A(a), B(b);
A.print();
B.print();
Matrix C = A + B;
C.print();
A.R(2);
C = A*B;
C.print();
system("Pause");
return 0;
}
class Matrix {
public:
double term[row][col];
Matrix() { memset(term, 0, sizeof(term)); }
Matrix(double a[row][col]) {
for (int i = 0; i < row; i++) {
for (int j = 0; j < col; j++)
term[i][j] = a[i][j];
}
}
double& operator()(int i, int j) {
return term[i][j];
}
void print() {
cout << "----------------\n";
for (int i = 0; i < row; i++) {
for (int j = 0; j < col; j++) {
cout << term[i][j] << "\t";
}
cout << endl;
}
}
friend Matrix& operator+(Matrix A, Matrix B) {
Matrix C;
for (int i = 0; i < row; i++) {
for (int j = 0; j < col; j++)
C.term[i][j] = A(i, j) + B(i, j);
}
return C;
}
friend Matrix& operator*(double r, Matrix A) {
Matrix C;
for (int i = 0; i < row; i++) {
for (int j = 0; j < col; j++)
C.term[i][j] = r*A(i, j) ;
}
return C;
}
};
class Matrix {
public:
double term[row][col];
Matrix() { memset(term, 0, sizeof(term)); }
Matrix(double a[row][col]) {
for (int i = 0; i < row; i++) {
for (int j = 0; j < col; j++)
term[i][j] = a[i][j];
}
}
double& operator()(int i, int j) {
return term[i][j];
}
void print() {
cout << "----------------\n";
for (int i = 0; i < row; i++) {
for (int j = 0; j < col; j++) {
cout << term[i][j] << "\t";
}
cout << endl;
}
}
friend Matrix& operator+(Matrix A, Matrix B) {
Matrix C;
for (int i = 0; i < row; i++) {
for (int j = 0; j < col; j++)
C.term[i][j] = A(i, j) + B(i, j);
}
return C;
}
friend Matrix& operator*(double r, Matrix A) {
Matrix C;
for (int i = 0; i < row; i++) {
for (int j = 0; j < col; j++)
C.term[i][j] = r*A(i, j) ;
}
return C;
}
};
class Matrix {
public:
double term[row][col];
Matrix() { memset(term, 0, sizeof(term)); }
Matrix(double a[row][col]) {
for (int i = 0; i < row; i++) {
for (int j = 0; j < col; j++)
term[i][j] = a[i][j];
}
}
double& operator()(int i, int j) {
return term[i][j];
}
void print() {
cout << "----------------\n";
for (int i = 0; i < row; i++) {
for (int j = 0; j < col; j++) {
cout << term[i][j] << "\t";
}
cout << endl;
}
}
friend Matrix& operator+(Matrix A, Matrix B) {
Matrix C;
for (int i = 0; i < row; i++) {
for (int j = 0; j < col; j++)
C.term[i][j] = A(i, j) + B(i, j);
}
return C;
}
friend Matrix& operator*(double r, Matrix A) {
Matrix C;
for (int i = 0; i < row; i++) {
for (int j = 0; j < col; j++)
C.term[i][j] = r*A(i, j) ;
}
return C;
}
};
class Matrix {
public:
double term[row][col];
Matrix() { memset(term, 0, sizeof(term)); }
Matrix(double a[row][col]) {
for (int i = 0; i < row; i++) {
for (int j = 0; j < col; j++)
term[i][j] = a[i][j];
}
}
double& operator()(int i, int j) {
return term[i][j];
}
void print() {
cout << "----------------\n";
for (int i = 0; i < row; i++) {
for (int j = 0; j < col; j++) {
cout << term[i][j] << "\t";
}
cout << endl;
}
}
friend Matrix& operator+(Matrix A, Matrix B) {
Matrix C;
for (int i = 0; i < row; i++) {
for (int j = 0; j < col; j++)
C.term[i][j] = A(i, j) + B(i, j);
}
return C;
}
friend Matrix& operator*(double r, Matrix A) {
Matrix C;
for (int i = 0; i < row; i++) {
for (int j = 0; j < col; j++)
C.term[i][j] = r*A(i, j) ;
}
return C;
}
};
class Matrix {
public:
double term[row][col];
Matrix() { memset(term, 0, sizeof(term)); }
Matrix(double a[row][col]) {
for (int i = 0; i < row; i++) {
for (int j = 0; j < col; j++)
term[i][j] = a[i][j];
}
}
double& operator()(int i, int j) {
return term[i][j];
}
void print() {
cout << "----------------\n";
for (int i = 0; i < row; i++) {
for (int j = 0; j < col; j++) {
cout << term[i][j] << "\t";
}
cout << endl;
}
}
friend Matrix& operator+(Matrix A, Matrix B) {
Matrix C;
for (int i = 0; i < row; i++) {
for (int j = 0; j < col; j++)
C.term[i][j] = A(i, j) + B(i, j);
}
return C;
}
friend Matrix& operator*(double r, Matrix A) {
Matrix C;
for (int i = 0; i < row; i++) {
for (int j = 0; j < col; j++)
C.term[i][j] = r*A(i, j) ;
}
return C;
}
};
#include
#include
using namespace std;
#define row 4
#define col 3
class Matrix {
public:
double term[row][col];
Matrix() { memset(term, 0, sizeof(term)); }
Matrix(double a[row][col]) {
for (int i = 0;i < row;i++) {
for (int j = 0;j < col;j++)
term[i][j] = a[i][j];
}
}
double&operator()(int i, int j) {
return term[i][j];
}
void print() {
cout << "--------------------\n";
for (int i = 0;i < row;i++) {
for (int j = 0;j < col;j++) {
cout << term[i][j] << "\t";
}
cout << endl;
}
}
friend Matrix& operator+(Matrix A, Matrix B) {
Matrix C;
for (int i = 0;i < row;i++) {
for (int j = 0;j < col;j++)
C.term[i][j] = A(i, j) + B(i, j);
}
return C;
}
friend Matrix& operator*(double r, Matrix A) {
Matrix M;
for (int i = 0;i < row;i++) {
for (int j = 0;j < col;j++)
M.term[i][j] = r*A(i, j);
}
return M;
}
};
int main()
{
double a[4][3] = { {1,2,3},{4,5,6},{7,8,9},{10,11,12}};
double b[4][3] = { {0,2,3},{0,1,1},{0,1,2},{2,3,5}};
Matrix A(a), B(b);
A.print();
B.print();
Matrix C = A + B;
C.print();
Matrix M = 2.0*A;
M.print();
system("Pause");
return 0;
}
#include
#include
#include
using namespace std;
#define row 4
#define col 3
class Matrix {
public:
double term[row][col];
Matrix() { memset(term, 0, sizeof(term)); }
Matrix(double a[row][col]) {
for (int i = 0;i < row;i++) {
for (int j = 0;j < col;j++)
term[i][j] = a[i][j];
}
}
double&operator()(int i, int j) {
return term[i][j];
}
void print() {
cout << "--------------------\n";
for (int i = 0;i < row;i++) {
for (int j = 0;j < col;j++) {
cout << term[i][j] << "\t";
}
cout << endl;
}
}
friend Matrix& operator+(Matrix A, Matrix B) {
Matrix C;
for (int i = 0;i < row;i++) {
for (int j = 0;j < col;j++)
C.term[i][j] = A(i, j) + B(i, j);
}
return C;
}
friend Matrix& operator*(double r, Matrix A) {
Matrix M;
for (int i = 0;i < row;i++) {
for (int j = 0;j < col;j++)
M.term[i][j] = r*A(i, j);
}
return M;
}
};
int main()
{
double a[4][3] = { {1,2,3},{4,5,6},{7,8,9},{10,11,12}};
double b[4][3] = { {0,2,3},{0,1,1},{0,1,2},{2,3,5}};
Matrix A(a), B(b);
A.print();
B.print();
Matrix C = A + B;
C.print();
Matrix M = 2.0*A;
M.print();
system("Pause");
return 0;
}
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