Write a program in C that recreates a half-pyramid using hashes (#) for blocks. Prompt the user for the half-pyramid’s height and align the bottom-left corner of the half-pyramid with the left-hand edge of the terminal window.
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/** * mario.c * * Koren Leslie Cohen * * Creates a Mario Pyramid. */ #include <stdio.h> #include <cs50.h> int main(void) { // declaring my variables int height; int all_rows; int space; int hash; // prompts user for integer until integer is 0 to 23 do { printf("Welcome to Mario! Please choose a number from 0 to 23:"); height = GetInt(); } while ((height < 0) || (height > 23)); // this is the loop that will create the number of rows in the pyramid entered by the user for (all_rows = 1; all_rows <= height; all_rows++) { for (space = (height - all_rows); space > 0; space--) { printf(" "); } for (hash = 1; hash <= (all_rows + 1); hash++) { printf("#"); } printf("\n"); } return 0; } |
Result:
Koren Leslie Cohen
Product manager at Facebook. Former senior product manager at Dollar Shave Club in Los Angeles and software engineer at J.Crew / Madewell in New York City. Recovering trial lawyer.
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Tushar Mittal says
November 2, 2014 at 3:19 pmThanks, worked like charm.
kohl says
January 12, 2015 at 3:57 pm(hash = 1; hash <= (all_rows + 1); hash++)
if you set int hash equal to 0 instead of one, you don't have to set the limit to all_rows +1
mac says
July 11, 2015 at 7:47 amplease am new to programming. can some one explain to me the above program and how the for loops work
That Guy says
July 29, 2016 at 7:58 pmA for loop is a repetition control structure that allows you to efficiently write a loop that needs to execute a specific number of times.
Mando says
September 23, 2015 at 2:22 pmFor the initialization and conditions of the nested for loops, why subtract height by row? Also what will the original “all_rows” loop do?
sarah says
October 14, 2015 at 2:36 pmThanks for posting this. But please also explain in steps because we are new to these kind of projects,
That Guy says
July 29, 2016 at 8:04 pmMaybe you should take Intro to computer Science? You take it free here: https://prod-edx-mktg-edit.edx.org/course/introduction-computer-science-harvardx-cs50x
Akash says
November 20, 2015 at 12:09 pmcan you please explain
for (hash = 1; hash <= (all_rows + 1); hash++)
Lawrence Hardy says
November 23, 2015 at 4:26 pmI am taking this class Harvard CS50 online, I wanted some commentary on my loops. However after reading your code. I would appreciate some information on your Mario For loop.
B says
May 14, 2016 at 11:08 amwould you consider consulting this violating academic honesty?
B says
May 14, 2016 at 12:52 pmthis class is really hard I feel like i can’t do it without consulting outside sources
silvia says
June 7, 2017 at 3:59 pmI regret saying that I gave up developping this code on my own (it’s my first week programming) and copied-pasted yours. Why does it always tell me (in mine) that I have one single error: “mario2.c:7:1: error: expected identifier or ‘(‘ “?? How can I check it?