#include #include using namespace std; class Knight { public: Knight(int x, int y); int possibleMovesNumber(); private: int m_posX; int m_posY; }; Knight::Knight(int x, int y) : m_posX(0), m_posY(0) { if ((x > 0 && x <= 8) && (y > 0 && y <= 8)) { m_posX = x; m_posY = y; } } int Knight::possibleMovesNumber() { int pmNb(0); // add/minus x pos by 2 and add/minus y pos by 1 if (m_posX + 2 <= 8 && m_posY + 1 <= 8) { pmNb++; } if (m_posX + 2 <= 8 && m_posY - 1 > 0) { pmNb++; } if (m_posX - 2 > 0 && m_posY + 1 <= 8) { pmNb++; } if (m_posX - 2 > 0 && m_posY - 1 > 0) { pmNb++; } //add/minus y pos by 2 and add/minus y pos by 1 if (m_posY + 2 <= 8 && m_posX + 1 <= 8) { pmNb++; } if (m_posY + 2 <= 8 && m_posX - 1 > 0) { pmNb++; } if (m_posY - 2 > 0 && m_posX + 1 <= 8) { pmNb++; } if (m_posY - 2 > 0 && m_posX - 1 > 0) { pmNb++; } return pmNb; } int main() { int posY(0); char posX('a'); //read the x coordinate cin >> posX; if (cin.fail()) { cout << "Fatal error: the y coordinate should be a character"; return 0; } if (isupper(posX)) { posX = tolower(posX); } //read the y coordinate cin >> posY; if (cin.fail()) { cout << "Fatal error: the y coordinate should be a number"; return 0; } cout << "X : " << posX << endl; cout << "Y : " << posY << endl; //create the knight object Knight knight(posX - 'a' + 1, 3); //show the number of all the possible moves cout << "the number off all possible moves is : "; cout << knight.possibleMovesNumber(); return 0; }

knight moves