//////////////////////////////////////////////////////////////// //****************CLOCKWISE SPIRAL SQUARE********************* //****************Author: Petros Simidyan********************** ///////////////////////////////////////////////////////////////// #include #include #include using namespace std; inline void fillRight(vector>& a, int& i, int& j, int count, int& output) { while (count--) a[i][j++] = output++; } inline void fillDown(vector>& a, int& i, int& j, int count, int& output) { while (count--) a[i++][j] = output++; } inline void fillLeft(vector>& a, int& i, int& j, int count, int& output) { while (count--) a[i][j--] = output++; } inline void fillUp(vector>& a, int& i, int& j, int count, int& output) { while (count--) a[i--][j] = output++; i++;// going back to the new start point j++; } inline bool isOdd(int n) { return n % 2 == 1; } inline void print2DVec(vector> n) { for (int i = 0; i < n.size(); i++) { for (int j = 0; j < n[i].size(); j++) cout <> input; if (cin.fail()) cout << "The given string is not an integer!" << endl; else if (input <= 1) cout << "The given integer is less or equal to 1!" << endl; else { vector> testVec(input, vector(input)); if (isOdd(input)) //need this to push the last input*input,in case that n is odd testVec[input / 2][input / 2] = input*input; int loopHelper = input - 1, i = 0, j = 0, output = 1; while (loopHelper > 0)//fill (input -1) numbers in each direction { fillRight(testVec, i, j, loopHelper, output); fillDown(testVec, i, j, loopHelper, output); fillLeft(testVec, i, j, loopHelper, output); fillUp(testVec, i, j, loopHelper, output); loopHelper -= 2; } cout << "Here is your clockwise spiral square matrix with " << input << " rows an columns!" << endl; print2DVec(testVec); } return 0; }