Question

I need help with this problem for computer science, have had difficulties figuring out for loops, please help, sorry the pyramid is kinda messed up but it's supposed to be a pyramid

Prog3d: Use for loops to construct a program that displays a pyramid of $ on the screen. The pyramid should look like this: [4] $ $$$ $$$$$ $$$$$$$ $$$$$$$$$ Note: There is no space in front of the first $ of last row. The above example shows only 5 lines however your program should take any integer input from the user corresponding to the number of rows to be shown. You must use the following methods: •

int main()

•int getNumberOfRowsFromUser()

• void drawPyramid(int)

Answer 1

#include <iostream>
using namespace std;

int main()      \\main function
{

int row; \\ variable declaration

int getNumberOfRowsFromUser(); \\function declaration

void drawPyramid(int);

row=getNumberOfRowsFromUser(); \\ input function call

drawPyramid(row); \\ output function call

return(0);

}

int getNumberOfRowsFromUser() \\ input function definition

{

int=row;

cout<<"enter an integer";

cin>>row;

return(row); \\ returning row value

}

void drawPyramid(int a); \\ pyramid function definition

{

int space;

for(int i = 1, k = 0; i <= a; ++i, k = 0)   \\ hear k=o means in every iteration k reset to 0
    {
        for(space = 1; space <= a-i; ++space)  \\ space equal to row-i and when row=i,space=0
        {
            cout <<"  ";        \\ print space
        }

        while(k != (2*i)-1)  \\ pyramid need (2*i)-1 $ in each row and when k couter meet this value,loop will terminate.
        {
            cout << "$";
            ++k;
        }
        cout << endl;  \\ not need to print space after $,so it will terminate the row.
    }  

}