add_prime_sum

Functions16

Objective

Write a program called add_prime_sum that computes and prints the sum of all prime numbers up to and including the integer passed as its only argument.

Steps

The program takes exactly one argument: a strictly positive decimal integer N.
If no argument is provided, or more than one argument is provided, print 0 followed by a newline and exit.
A prime number is a whole number greater than 1 that has no divisors other than 1 and itself.
Iterate from 2 up to N (inclusive), accumulate every prime found, then print the total followed by a newline.
You may only use write and exit.

examples

$ ./add_prime_sum 10

$ ./add_prime_sum 5

$ ./add_prime_sum

Constraints

Expected files

add_prime_sum.c

Allowed functions

writeexit

Tests

Run the tests to grade your code

Build

01Missing argument prints zero

02Primes up to 5 (2+3+5)

03Primes up to 7 (2+3+5+7)

04Primes up to 20 (2+3+5+7+11+13+17+19)

05Primes up to 100

06Extra arguments print zero

add_prime_sum

Objective

Write a program called add_prime_sum that computes and prints the sum of all prime numbers up to and including the integer passed as its only argument.

Steps

The program takes exactly one argument: a strictly positive decimal integer N.
If no argument is provided, or more than one argument is provided, print 0 followed by a newline and exit.
A prime number is a whole number greater than 1 that has no divisors other than 1 and itself.
Iterate from 2 up to N (inclusive), accumulate every prime found, then print the total followed by a newline.
You may only use write and exit.

examples

$ ./add_prime_sum 10

$ ./add_prime_sum 5

$ ./add_prime_sum

Constraints

Expected files

add_prime_sum.c

Allowed functions

writeexit

add_prime_sum

Functions16

Objective

Write a program called add_prime_sum that computes and prints the sum of all prime numbers up to and including the integer passed as its only argument.

Steps

The program takes exactly one argument: a strictly positive decimal integer N.
If no argument is provided, or more than one argument is provided, print 0 followed by a newline and exit.
A prime number is a whole number greater than 1 that has no divisors other than 1 and itself.
Iterate from 2 up to N (inclusive), accumulate every prime found, then print the total followed by a newline.
You may only use write and exit.

examples

$ ./add_prime_sum 10

$ ./add_prime_sum 5

$ ./add_prime_sum

Constraints

Expected files

add_prime_sum.c

Allowed functions

writeexit

Tests

Run the tests to grade your code

Build

01Missing argument prints zero

02Primes up to 5 (2+3+5)

03Primes up to 7 (2+3+5+7)

04Primes up to 20 (2+3+5+7+11+13+17+19)

05Primes up to 100

06Extra arguments print zero