alx-low_level_programming: A C repository from Dev-Wadej

0x03-more_functions_nested_loops

What you should learn from this project

At the end of this project you are expected to be able to explain to anyone, without the help of Google:

What are nested loops and how to use them
What is a function and how do you use functions
What is the difference between a declaration and a definition of a function
What is a prototype
Scope of variables
What are the gcc flags -Wall -Werror -pedantic -Wextra
What are header files and how to to use them with #include

Exercises

0. isupper

Write a function that checks for uppercase character.

Prototype: int _isupper(int c);
Returns 1 if c is uppercase
Returns 0 otherwise

1. isdigit

Write a function that checks for a digit (0 through 9).

Prototype: int _isdigit(int c);
Returns 1 if c is a digit
Returns 0 otherwise

2-mul.c

Collaboration is multiplication
Write a function that multiplies two integers.

Prototype: int mul(int a, int b);

3-print_numbers.c

The numbers speak for themselves
Write a function that prints the numbers, from 0 to 9, followed by a new line.

Prototype: void print_numbers(void);
You can only use _putchar twice in your code

4-print_most_numbers.c

I believe in numbers and signs
Write a function that prints the numbers, from 0 to 9, followed by a new line.

Prototype: void print_most_numbers(void);
Do not print 2 and 4
You can only use _putchar twice in your code

5-more_numbers.c

Numbers constitute the only universal language
Write a function that prints 10 times the numbers, from 0 to 14,
followed by a new line.

Prototype: void more_numbers(void);
You can only use _putchar three times in your code

6-print_line.c

The shortest distance between two points is a straight line
Write a function that draws a straight line in the terminal.

Prototype: void print_line(int n);
You can only use _putchar function to print
Where n is the number of times the character _ should be printed
The line should end with a \n
If n is 0 or less, the function should only print \n

7-print_diagonal.c

I feel like I am diagonally parked in a parallel universe
Write a function that draws a diagonal line on the terminal.

Prototype: void print_diagonal(int n);
You can only use _putchar function to print
Where n is the number of times the character \ should be printed
The diagonal should end with a \n
If n is 0 or less, the function should only print a \n

8-print_square.c

You are so much sunshine in every square inch
Write a function that prints a square, followed by a new line.

Prototype: void print_square(int size);
You can only use _putchar function to print
Where size is the size of the square
If size is 0 or less, the function should print only a new line
Use the character # to print the square

9-fizz_buzz.c

The “Fizz-Buzz test” is an interview question designed to help filter out the
99.5% of programming job candidates who can’t seem to program their way out of
a wet paper bag.
Write a program that prints the numbers from 1 to 100, followed by a new line.

But for multiples of three print Fizz instead of the number and for the multiples of five print Buzz. For numbers which are multiples of both three and five print FizzBuzz.
Each number or word should be separated by a space
You are allowed to use the standard library

10-print_triangle.c

Write a function that prints a triangle, followed by a new line.

Prototype: void print_triangle(int size);
You can only use _putchar function to print
Where size is the size of the triangle
If size is 0 or less, the function should print only a new line
Use the character # to print the triangle

100-prime_factor.c

The problem of distinguishing prime numbers from composite numbers and of
resolving the latter into their prime factors is known to be one of the most
important and useful in arithmetic
The prime factors of 1231952 are 2, 2, 2, 2, 37 and 2081.
Write a program that finds and prints the largest prime factor of the number
612852475143, followed by a new line.

You are allowed to use the standard library
Your program will be compiled with this command: gcc -Wall -pedantic -Werror -
Wextra 100-prime_factor.c -o 100-prime_factor -lm

101-print_number.c

Numbers have life; they're not just symbols on paper
Write a function that prints an integer.

Prototype: void print_number(int n);
You can only use _putchar function to print
You are not allowed to use long
You are not allowed to use arrays or pointers
You are not allowed to hard-code special values

Full Stack Software Engineer

Dev-Wadej/alx-low_level_programming

0x03-more_functions_nested_loops

Exercises