Mario

Problem to Solve

Toward the beginning of World 1-1 in Nintendo’s Super Mario Brothers, Mario must hop over adjacent pyramids of blocks. Let’s recreate those pyramids in C, albeit in text, using hashes (#) for bricks. Each hash is a bit taller than it is wide, so the pyramids themselves will also be taller than they are wide.

Background

The program we’ll write will be called mario. And let’s allow the user to decide just how tall the pyramids should be by first prompting them for a positive integer between, say, 1 and 8, inclusive.

Here’s how the program might work if the user inputs 8 when prompted:

$ ./mario
Height: 8
       #
      ##
     ###
    ####
   #####
  ######
 #######
########

Here’s how the program might work if the user inputs 4 when prompted:

$ ./mario
Height: 4
   #
  ##
 ###
####

Here’s how the program might work if the user inputs 2 when prompted:

$ ./mario
Height: 2
 #
##

And here’s how the program might work if the user inputs 1 when prompted:

$ ./mario
Height: 1
#

If the user doesn’t, in fact, input a positive integer between 1 and 8, inclusive, when prompted, the program should re-prompt the user until they cooperate:

$ ./mario
Height: -1
Height: 0
Height: 42
Height: 50
Height: 4
   #
  ##
 ###
####

Specification

Write, in a file called mario.c, a program that recreates this half-pyramid using hashes (#) for blocks.
To make things more interesting, first prompt the user for the half-pyramid’s height, a positive integer between 1 and 8, inclusive.
If the user fails to provide a positive integer no greater than 8, you should re-prompt for the same again.
Then, generate (with the help of printf and one or more loops) the desired half-pyramid.
Take care to align the bottom-left corner of your half-pyramid with the left-hand edge of your terminal window.

Hints

First, decide what values are valid inputs (i.e., what heights are allowed).
Use a loop to repeatedly prompt for valid input.
For each row, first print spaces, then print hashes.
Consider: for row i, how many spaces and how many hashes should be printed?

Getting Started

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