- Everything you need to know to start with C.pdf
- Keywords and identifiers
- integers
- Arithmetic Operators in C
- If statements in C
- if...else statement
- Relational operators
- Logical operators
- while loop in C
- While loop
- What are the arithmetic operators and how to use them
- What are the logical operators (sometimes called boolean operators) and how to use them
- What the the relational operators and how to use them
- What values are considered TRUE and FALSE in C
- What are the boolean operators and how to use them
- How to use the if, if ... else statements
- How to use comments
- How to declare variables of types char, int, unsigned int
- How to assign values to variables
- How to print the values of variables of type char, int, unsigned int with printf
- How to use the while loop
- How to use variables with the while loop
- How to print variables using printf
- What is the ASCII character set
- What are the purpose of the gcc flags -m32 and -m64
- This program will assign a random number to the variable n each time it is executed. Complete the source code in order to print whether the number stored in the variable n is positive or negative.
You can find the source code here
The variable n will store a different value every time you will run this program
You don’t have to understand what rand, srand, RAND_MAX do. Please do not touch this code
The output of the program should be:
The number, followed by
if the number is greater than 0: is positive if the number is 0: is zero if the number is less than 0: is negative
followed by a new line
The number, followed by
if the number is greater than 0: is positive if the number is 0: is zero if the number is less than 0: is negative
if the number is greater than 0: is positive
if the number is 0: is zero
if the number is less than 0: is negative
followed by a new line
Mode: mandatory
File: 0-positive_or_negative.c
- This program will assign a random number to the variable n each time it is executed. Complete the source code in order to print the last digit of the number stored in the variable n.
You can find the source code here
The variable n will store a different value every time you run this program
You don’t have to understand what rand, srand, and RAND_MAX do. Please do not touch this code
The output of the program should be:
The string Last digit of, followed by n, followed by the string is, followed by
if the last digit of n is greater than 5: the string and is greater than 5 if the last digit of n is 0: the string and is 0 if the last digit of n is less than 6 and not 0: the string and is less than 6 and not 0
followed by a new line
The string Last digit of, followed by
n, followed by
the string is, followed by
if the last digit of n is greater than 5: the string and is greater than 5 if the last digit of n is 0: the string and is 0 if the last digit of n is less than 6 and not 0: the string and is less than 6 and not 0
if the last digit of n is greater than 5: the string and is greater than 5
if the last digit of n is 0: the string and is 0
if the last digit of n is less than 6 and not 0: the string and is less than 6 and not 0
followed by a new line
Mode: mandatory
File: 1-last_digit.c
2. I sometimes suffer from insomnia. And when I can't fall asleep, I play what I call the alphabet game
- Write a program that prints the alphabet in lowercase, followed by a new line.
You can only use the putchar function (every other function (printf, puts, etc…) is forbidden)
All your code should be in the main function
You can only use putchar twice in your code
Mode: mandatory
File: 2-print_alphabet.c
- Write a program that prints the alphabet in lowercase, and then in uppercase, followed by a new line.
You can only use the putchar function (every other function (printf, puts, etc…) is forbidden)
All your code should be in the main function
You can only use putchar three times in your code
Mode: mandatory
File: 3-print_alphabets.c
- Write a program that prints the alphabet in lowercase, followed by a new line.
Print all the letters except q and e
You can only use the putchar function (every other function (printf, puts, etc…) is forbidden)
All your code should be in the main function
You can only use putchar twice in your code
Mode: mandatory
File: 4-print_alphabt.c
- Write a program that prints all single digit numbers of base 10 starting from 0, followed by a new line.
All your code should be in the main function
Mode: mandatory
File: 5-print_numbers.c
- Write a program that prints all single digit numbers of base 10 starting from 0, followed by a new line.
You are not allowed to use any variable of type char
You can only use the putchar function (every other function (printf, puts, etc…) is forbidden)
You can only use putchar twice in your code
All your code should be in the main function
Mode: mandatory
File: 6-print_numberz.c
- Write a program that prints the lowercase alphabet in reverse, followed by a new line.
You can only use the putchar function (every other function (printf, puts, etc…) is forbidden)
All your code should be in the main function
You can only use putchar twice in your code
Mode: mandatory
File: 7-print_tebahpla.c
- Write a program that prints all the numbers of base 16 in lowercase, followed by a new line.
You can only use the putchar function (every other function (printf, puts, etc…) is forbidden)
All your code should be in the main function
You can only use putchar three times in your code
Mode: mandatory
File: 8-print_base16.c
- Write a program that prints all possible combinations of single-digit numbers.
Numbers must be separated by ,, followed by a space
Numbers should be printed in ascending order
You can only use the putchar function (every other function (printf, puts, etc…) is forbidden)
All your code should be in the main function
You can only use putchar four times maximum in your code
You are not allowed to use any variable of type char
Mode: mandatory
File: 9-print_comb.c
10. Inventing is a combination of brains and materials. The more brains you use, the less material you need
- Write a program that prints all possible different combinations of two digits.
Numbers must be separated by ,, followed by a space
The two digits must be different
01 and 10 are considered the same combination of the two digits 0 and 1
Print only the smallest combination of two digits
Numbers should be printed in ascending order, with two digits
You can only use the putchar function (every other function (printf, puts, etc…) is forbidden)
You can only use putchar five times maximum in your code
You are not allowed to use any variable of type char
All your code should be in the main function
Mode: #advanced
File: 100-print_comb3.c
- Write a program that prints all possible different combinations of three digits.
Numbers must be separated by ,, followed by a space
The three digits must be different
012, 120, 102, 021, 201, 210 are considered the same combination of the three digits 0, 1 and 2
Print only the smallest combination of three digits
Numbers should be printed in ascending order, with three digits
You can only use the putchar function (every other function (printf, puts, etc…) is forbidden)
You can only use putchar six times maximum in your code
You are not allowed to use any variable of type char
All your code should be in the main function
Mode: #advanced
File: 101-print_comb4.c
- Write a program that prints all possible combinations of two two-digit numbers.
The numbers should range from 0 to 99
The two numbers should be separated by a space
All numbers should be printed with two digits. 1 should be printed as 01
The combination of numbers must be separated by comma, followed by a space
The combinations of numbers should be printed in ascending order
00 01 and 01 00 are considered as the same combination of the numbers 0 and 1
You can only use the putchar function (every other function (printf, puts, etc…) is forbidden)
You can only use putchar eight times maximum in your code
You are not allowed to use any variable of type char
All your code should be in the main function
Mode: #advanced
File: 102-print_comb5.c