Simple exercises in C making use of libcs50.
Creates a Super Mario-style pyramid with a requested height between 1 and 8:
$ ./mario
Height: 5
#
##
###
####
#####
Building instructions
$ gcc -o mario mario.c -lcs50
Greedy algorithm that calculates the optimal number of coins for a given number of US cents:
$ ./cents
Number of cents: 475869
19040
Building instructions
$ gcc -o cents cents.c -lcs50
Determines which Scrabble word is worth more, using the value of every letter in the game (case insensitive):
| A | B | C | D | E | F | G | H | I | J | K | L | M | N | O | P | Q | R | S | T | U | V | W | X | Y | Z |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | 3 | 3 | 2 | 1 | 4 | 2 | 4 | 1 | 8 | 5 | 1 | 3 | 1 | 1 | 3 | 10 | 1 | 1 | 1 | 1 | 4 | 4 | 8 | 4 | 10 |
$ ./scrabble
Player 1: Elephant
Player 2: smartphone
Player 2 wins!
Building instructions
$ gcc -o scrabble scrabble.c -lcs50
Determines the reading level of a given text following the Coleman-Liau formula (assuming no double spaces / double punctuation marks):
$ ./readability
Text: The Coleman–Liau index is a readability test designed by Meri Coleman and T. L. Liau to gauge the understandability of a text. Like the Flesch–Kincaid Grade Level, Gunning fog index, SMOG index, and Automated Readability Index, its output approximates the U.S. grade level thought necessary to comprehend the text.
Grade 11
Building instructions
$ gcc -o readability readability.c -lcs50 -lm
Simple implementation of the Caesar cipher algorithm.
$ ./caesar 5
plaintext: Hello, world!
ciphertext: Mjqqt, btwqi!
Provides usage instructions when used incorrectly:
$ ./caesar
Usage: ./caesar key
$ ./caesar NotAPositiveNumber
Usage: ./caesar key
$ ./caesar -2
Usage: ./caesar key
$ ./caesar 5 7
Usage: ./caesar key
Building instructions
$ gcc -o caesar caesar.c -lcs50
Takes three real numbers representing the lengths of the three sides of a triangle and determines whether they are capable of making a triangle:
$ ./triangle
First side of the triangle: 4
Second side of the triangle: 5
Third side of the triangle: 0
NOT a valid triangle!
$ ./triangle
First side of the triangle: 2
Second side of the triangle: 2
Third side of the triangle: 2
Valid triangle
Building instructions
$ gcc -o triangle triangle.c -lcs50
Converts a space-separated list of decimal numbers to its ASCII equivalent:
$ ./ascii 72 101 108 108 111 44 32 119 111 114 108 100 33
Hello, world!
Building instructions
$ gcc -o ascii ascii.c