My programme has a runtime error, but I couldn't figure it out. Where's the problem? It would be much appreciated if you could help me! :) Here's the code:
P.S. I'm kinda new to python! Thanks for your help!
import math
n = input()
for a in range(n):
x, y = input().split()
num = math.sqrt(x**2+y**2)
print(num)
The function input() returns a string. The function split() returns a list of strings. You cannot do any mathematical operation using strings. You have to cast to the correct type before performing any operation.
Try:
import math
n = input()
for a in range(int(n)):
x, y = input().split()
x, y = float(x), float(y) # for example, it can be int as well
num = math.sqrt(x**2+y**2)
print(num)
You have at least two errors.
The first is your input is left as a string. You should convert it by using n = int(input()) or n = float(input())
The second is you have a runtime error:
ValueError: not enough values to unpack (expected 2, got 1) which is resulting from your input. You're trying to pack that input into two separate values. But, again, you only have one.
I think what you are looking for is more like this:
import math
x = float(input())
y = float(input())
num = math.sqrt(x**2+y**2)
print(num)
but this could be further shortened to:
x = float(input())
y = float(input())
print((x**2+y**2)**.5)
n is string (in python3). Why you are converting it to string again? That does not help at all. Also if inside for loop if input is values separated by space, the 2nd problem you mentioned would not occur
nis string and not integer. Sorange(n)would not work. You have to convertnto integer first