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0-holberton
0-holberton
 
 
0-holberton.c
0-holberton.c
 
 
1-alphabet.c
1-alphabet.c
 
 
1-main.c
1-main.c
 
 
10-add.c
10-add.c
 
 
10-main.c
10-main.c
 
 
100-main.c
100-main.c
 
 
100-times_table.c
100-times_table.c
 
 
101-natural.c
101-natural.c
 
 
102-fibonacci.c
102-fibonacci.c
 
 
103-fibonacci.c
103-fibonacci.c
 
 
104-fibonacci.c
104-fibonacci.c
 
 
11-main.c
11-main.c
 
 
11-print_to_98.c
11-print_to_98.c
 
 
2-main.c
2-main.c
 
 
2-print_alphabet_x10.c
2-print_alphabet_x10.c
 
 
3-islower.c
3-islower.c
 
 
3-main.c
3-main.c
 
 
4-isalpha.c
4-isalpha.c
 
 
4-main.c
4-main.c
 
 
5-main.c
5-main.c
 
 
5-sign.c
5-sign.c
 
 
6-abs.c
6-abs.c
 
 
6-main.c
6-main.c
 
 
7-main.c
7-main.c
 
 
7-print_last_digit.c
7-print_last_digit.c
 
 
8-24_hours.c
8-24_hours.c
 
 
8-main.c
8-main.c
 
 
9-main.c
9-main.c
 
 
9-times_table.c
9-times_table.c
 
 
README.md
README.md
 
 
_putchar.c
_putchar.c
 
 
holberton.h
holberton.h
 
 

README.md

0x02. C - Functions, nested loops

Description

What you should learn from this project:

  • 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

0. _putchar

  • Write a program that prints Holberton, followed by a new line.

1. I sometimes suffer from insomnia. And when I can't fall asleep, I play what I call the alphabet game

  • Write a function that prints the alphabet, in lowercase, followed by a new line.

2. 10 x alphabet

  • Write a function that prints 10 times the alphabet, in lowercase, followed by a new line.

3. islower

  • Write a function that checks for lowercase character.

4. isalpha

  • Write a function that checks for alphabetic character.

5. Sign

  • Write a function that prints the sign of a number.

6. There is no such thing as absolute value in this world. You can only estimate what a thing is worth to you

  • Write a function that computes the absolute value of an integer.

7. There are only 3 colors, 10 digits, and 7 notes; it's what we do with them that's important

  • Write a function that prints the last digit of a number.

8. I'm federal agent Jack Bauer, and today is the longest day of my life

  • Write a function that prints every minute of the day of Jack Bauer, starting from 00:00 to 23:59.

9. Learn your times table

  • Write a function that prints the 9 times table, starting with 0.

10. a + b

  • Write a function that adds two integers and returns the result.

11. Holberton School, 98 Battery Street, the OG

  • Write a function that prints all natural numbers from n to 98, followed by a new line.

12. The World looks like a multiplication-table, or a mathematical equation, which, turn it how you will, balances itself

  • Write a function that prints the n times table, starting with 0.

13. Nature made the natural numbers; All else is the work of women

  • If we list all the natural numbers below 10 that are multiples of 3 or 5, we get 3, 5, 6 and 9. The sum of these multiples is 23. Write a program that computes and prints the sum of all the multiples of 3 or 5 below 1024 (excluded), followed by a new line.

14. In computer class, the first assignment was to write a program to print the first 100 Fibonacci numbers. Instead, I wrote a program that would steal passwords of students. My teacher gave me an A

  • Write a program that prints the first 50 Fibonacci numbers, starting with 1 and 2, followed by a new line.

15. Even Liber Abbaci

  • Each new term in the Fibonacci sequence is generated by adding the previous two terms. By starting with 1 and 2, the first 10 terms will be: 1, 2, 3, 5, 8, 13, 21, 34, 55, 89. By considering the terms in the Fibonacci sequence whose values do not exceed 4,000,000, write a program that finds and prints the sum of the even-valued terms, followed by a new line.

16. In computer class, the first assignment was to write a program to print the first 100 Fibonacci numbers. Instead, I wrote a program that would steal passwords of students. My teacher gave me an A+

  • Write a program that finds and prints the first 98 Fibonacci numbers, starting with 1 and 2, followed by a new line.

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