May 2016
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May 2016
May 2021
edelweiss99
May '16

So basically I tried my code, it is working but I get an error runtime error (NZEC).

Here is my code:

def is_prime(x):
	if x > 1:
		n = x // 2
		for i in range(2, n + 1):
			if x % i == 0:
				return False
		return True
	else:
		return False

def solution():
	x = int(input())
	y = int(input())
	for n in range(x, y+1):
		if is_prime(n):
			print(n)

solution()

  • created

    May '16

  • last reply

    May '21
  • 3

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daft_wullie
May '16

You have to consider the way spoj 'feeds' the input to your code and how python processes it. The input() command always reads an entire line and returns a string. So you will often have to split the string before converting into integer. .split() is your friend. It is always a good idea to test your code at ideone.com before submitting it to spoj - it will help to find this kind of errors (and more). After resolving the input issue you will have to find a faster algorithm. :wink:

26 days later
deepak_puri50
Jun '16

to receive the multiple inputs in one line you need to write
x,y=map(int, raw_input().split())
it is for two variables but you can also use it with a list instead of x and y.

4 years later
trieksie
May '21

I am trying to understand why I keep on getting the error “Standard input is empty” in the code below when clearly I am asking for input. This it the code for the prime generator puzzle but the detail of the calculation is not relevant.

k=int(input()) #number of test cases
for i in range(1,k+1):
m,n=map(int, input().split())
primes=prime_sieve_range(m,n)
for p in primes:
print§
print(’’)

Kind regard
H