////////////////////////////////////////////////////////////// //**********CHALLENGE:Bouncing Ball Physics challenge********* //****************Author: Petros Simidyan********************* //************** #include #include using namespace std; #define PO cout<<"O"; //macro for printing "The ball" inline void printLines(const int i) { if (i > 0) { string lines(i, '_'); cout << lines; } } //functionto count the lines between the sides of triangels inline int triLines(const int row) { if (row < 2) return 0; if (row == 2) return 1; else return 2 + triLines(row - 1); } //print one row of the triangle, depends on situation inline void triRow( const int dep, const int row, const int tempDep) { if (tempDep == 1) { printLines(dep - row); PO; printLines(dep - row - 1); } else { printLines(dep - row); PO; printLines(triLines(tempDep)); PO; printLines(dep - row - 1); } } void printSolution(const int input) { int row = 0, tempRow; while (row < input) { printLines(row); PO; printLines(input - row - 1); for(tempRow = row; tempRow>0; tempRow--) triRow(input, row, tempRow); cout << endl; row++; } //printing the last row printLines(input); for(int i = input; i>0; i--) {PO; printLines(triLines(i));} } int main() { printSolution(8); return 0; }