Date: 01 September, 2023
Model: codellama-34b-instruct
Temperature: 0.2
Passing runs: 0
Total runs: 10
Success rate: 0%
import math
def poly(xs: list, x: float):
"""
Evaluates polynomial with coefficients xs at point x.
return xs[0] + xs[1] * x + xs[1] * x^2 + .... xs[n] * x^n
"""
return sum([coeff * math.pow(x, i) for i, coeff in enumerate(xs)])
def find_zero(xs: list):
""" xs are coefficients of a polynomial.
find_zero find x such that poly(x) = 0.
find_zero returns only only zero point, even if there are many.
Moreover, find_zero only takes list xs having even number of coefficients
and largest non zero coefficient as it guarantees
a solution.
>>> round(find_zero([1, 2]), 2) # f(x) = 1 + 2x
-0.5
>>> round(find_zero([-6, 11, -6, 1]), 2) # (x - 1) * (x - 2) * (x - 3) = -6 + 11x - 6x^2 + x^3
1.0
"""
The above is an incomplete Python code fragment. Return the complete and correct code with no additional text.
import math
def poly(xs: list, x: float):
"""
Evaluates polynomial with coefficients xs at point x.
return xs[0] + xs[1] * x + xs[1] * x^2 + .... xs[n] * x^n
"""
return sum([coeff * math.pow(x, i) for i, coeff in enumerate(xs)])
def find_zero(xs: list):
""" xs are coefficients of a polynomial.
find_zero find x such that poly(x) = 0.
find_zero returns only only zero point, even if there are many.
Moreover, find_zero only takes list xs having even number of coefficients
and largest non zero coefficient as it guarantees
a solution.
>>> round(find_zero([1, 2]), 2) # f(x) = 1 + 2x
-0.5
>>> round(find_zero([-6, 11, -6, 1]), 2) # (x - 1) * (x - 2) * (x - 3) = -6 + 11x - 6x^2 + x^3
1.0
"""begin, end = -1., 1.
while poly(xs, begin) * poly(xs, end) > 0:
begin *= 2.0
end *= 2.0
while end - begin > 1e-10:
center = (begin + end) / 2.0
if poly(xs, center) * poly(xs, begin) > 0:
begin = center
else:
end = center
return begin
METADATA = {}
def check(candidate):
import math
import random
rng = random.Random(42)
import copy
for _ in range(100):
ncoeff = 2 * rng.randint(1, 4)
coeffs = []
for _ in range(ncoeff):
coeff = rng.randint(-10, 10)
if coeff == 0:
coeff = 1
coeffs.append(coeff)
solution = candidate(copy.deepcopy(coeffs))
assert math.fabs(poly(coeffs, solution)) < 1e-4
Start time: 2023-09-01 02:48:09
Duration: 20.17s
Result: Fail
import math
def poly(xs: list, x: float):
"""
Evaluates polynomial with coefficients xs at point x.
return xs[0] + xs[1] * x + xs[1] * x^2 + .... xs[n] * x^n
"""
return sum([coeff * math.pow(x, i) for i, coeff in enumerate(xs)])
def find_zero(xs: list):
""" xs are coefficients of a polynomial.
find_zero find x such that poly(x) = 0.
find_zero returns only one zero point, even if there are many.
Moreover, find_zero only takes list xs having even number of coefficients
and largest non zero coefficient as it guarantees
a solution.
>>> round(find_zero([1, 2]), 2) # f(x) = 1 + 2x
-0.5
>>> round(find_zero([-6, 11, -6, 1]), 2) # (x - 1) * (x - 2) * (x - 3) = -6 + 11x - 6x^2 + x^3
1.0
"""
n = len(xs)
if n % 2 == 0 and xs[n-1] != 0:
return None
for i in range(n-1):
if xs[i] == 0:
return 0
x = 1
while x <= n:
y = poly(xs, x)
if y == 0:
return x
x += 1
return None
Start time: 2023-09-01 02:51:09
Duration: 16.12s
Result: Fail
import math
def poly(xs: list, x: float):
"""
Evaluates polynomial with coefficients xs at point x.
return xs[0] + xs[1] * x + xs[1] * x^2 + .... xs[n] * x^n
"""
return sum([coeff * math.pow(x, i) for i, coeff in enumerate(xs)])
def find_zero(xs: list):
""" xs are coefficients of a polynomial.
find_zero find x such that poly(x) = 0.
find_zero returns only one zero point, even if there are many.
Moreover, find_zero only takes list xs having even number of coefficients
and largest non zero coefficient as it guarantees
a solution.
>>> round(find_zero([1, 2]), 2) # f(x) = 1 + 2x
-0.5
>>> round(find_zero([-6, 11, -6, 1]), 2) # (x - 1) * (x - 2) * (x - 3) = -6 + 11x - 6x^2 + x^3
1.0
"""
n = len(xs)
if n % 2 == 0:
return None
if xs[n-1] == 0:
return None
x = -xs[0] / xs[n-1]
for i in range(n-2, -1, -1):
x = x - xs[i] / xs[n-1]
return x
Start time: 2023-09-01 02:54:04
Duration: 18.37s
Result: Fail
def find_zero(xs: list):
""" xs are coefficients of a polynomial.
find_zero find x such that poly(x) = 0.
find_zero returns only one zero point, even if there are many.
Moreover, find_zero only takes list xs having even number of coefficients
and largest non zero coefficient as it guarantees
a solution.
>>> round(find_zero([1, 2]), 2) # f(x) = 1 + 2x
-0.5
>>> round(find_zero([-6, 11, -6, 1]), 2) # (x - 1) * (x - 2) * (x - 3) = -6 + 11x - 6x^2 + x^3
1.0
"""
# Find the largest non-zero coefficient
largest_coeff = max(xs, key=abs)
# Find the index of the largest non-zero coefficient
largest_coeff_index = xs.index(largest_coeff)
# Find the number of coefficients
num_coeffs = len(xs)
# Check if the number of coefficients is even
if num_coeffs % 2 == 0:
# If the number of coefficients is even, find the zero point
zero_point = -largest_coeff / (xs[largest_coeff_index - 1] + xs[largest_coeff_index + 1])
else:
# If the number of coefficients is odd, find the zero point
zero_point = -largest_coeff / (xs[largest_coeff_index - 1] + xs[largest_coeff_index + 1])
return zero_point
Start time: 2023-09-01 02:57:02
Duration: 16.31s
Result: Fail
def find_zero(xs: list):
""" xs are coefficients of a polynomial.
find_zero find x such that poly(x) = 0.
find_zero returns only one zero point, even if there are many.
Moreover, find_zero only takes list xs having even number of coefficients
and largest non zero coefficient as it guarantees
a solution.
>>> round(find_zero([1, 2]), 2) # f(x) = 1 + 2x
-0.5
>>> round(find_zero([-6, 11, -6, 1]), 2) # (x - 1) * (x - 2) * (x - 3) = -6 + 11x - 6x^2 + x^3
1.0
"""
# Check if the list has an even number of coefficients
if len(xs) % 2 == 1:
raise ValueError("The list must have an even number of coefficients.")
# Find the largest non-zero coefficient
largest_coeff = max(xs, key=abs)
# Check if the largest non-zero coefficient is positive
if largest_coeff > 0:
raise ValueError("The largest non-zero coefficient must be negative.")
# Find the zero point
zero_point = -largest_coeff / (xs[0] - largest_coeff)
return zero_point
Start time: 2023-09-01 03:00:01
Duration: 17.29s
Result: Fail
import math
def poly(xs: list, x: float):
"""
Evaluates polynomial with coefficients xs at point x.
return xs[0] + xs[1] * x + xs[1] * x^2 + .... xs[n] * x^n
"""
return sum([coeff * math.pow(x, i) for i, coeff in enumerate(xs)])
def find_zero(xs: list):
""" xs are coefficients of a polynomial.
find_zero find x such that poly(x) = 0.
find_zero returns only only zero point, even if there are many.
Moreover, find_zero only takes list xs having even number of coefficients
and largest non zero coefficient as it guarantees
a solution.
>>> round(find_zero([1, 2]), 2) # f(x) = 1 + 2x
-0.5
>>> round(find_zero([-6, 11, -6, 1]), 2) # (x - 1) * (x - 2) * (x - 3) = -6 + 11x - 6x^2 + x^3
1.0
"""
if len(xs) % 2 == 0 and xs[-1] != 0:
return None
x = 0
for i in range(len(xs) // 2):
x += xs[i] * math.pow(x, i)
return x
Start time: 2023-09-01 03:03:01
Duration: 19.86s
Result: Fail
def find_zero(xs: list):
""" xs are coefficients of a polynomial.
find_zero find x such that poly(x) = 0.
find_zero returns only one zero point, even if there are many.
Moreover, find_zero only takes list xs having even number of coefficients
and largest non zero coefficient as it guarantees
a solution.
>>> round(find_zero([1, 2]), 2) # f(x) = 1 + 2x
-0.5
>>> round(find_zero([-6, 11, -6, 1]), 2) # (x - 1) * (x - 2) * (x - 3) = -6 + 11x - 6x^2 + x^3
1.0
"""
# Find the largest non-zero coefficient
largest_coeff = max(xs, key=abs)
# Find the index of the largest non-zero coefficient
largest_coeff_index = xs.index(largest_coeff)
# Find the number of coefficients
num_coeffs = len(xs)
# Check if the number of coefficients is even
if num_coeffs % 2 == 0:
# If the number of coefficients is even, find the zero point
zero_point = -largest_coeff / (num_coeffs - largest_coeff_index)
else:
# If the number of coefficients is odd, find the zero point
zero_point = -largest_coeff / (num_coeffs - largest_coeff_index - 1)
# Return the zero point
return zero_point
Start time: 2023-09-01 03:06:05
Duration: 16.38s
Result: Fail
import math
def poly(xs: list, x: float):
"""
Evaluates polynomial with coefficients xs at point x.
return xs[0] + xs[1] * x + xs[1] * x^2 + .... xs[n] * x^n
"""
return sum([coeff * math.pow(x, i) for i, coeff in enumerate(xs)])
def find_zero(xs: list):
""" xs are coefficients of a polynomial.
find_zero find x such that poly(x) = 0.
find_zero returns only only zero point, even if there are many.
Moreover, find_zero only takes list xs having even number of coefficients
and largest non zero coefficient as it guarantees
a solution.
>>> round(find_zero([1, 2]), 2) # f(x) = 1 + 2x
-0.5
>>> round(find_zero([-6, 11, -6, 1]), 2) # (x - 1) * (x - 2) * (x - 3) = -6 + 11x - 6x^2 + x^3
1.0
"""
if len(xs) % 2 == 1:
raise ValueError("xs must have an even number of coefficients")
if xs[-1] == 0:
raise ValueError("largest non-zero coefficient must be non-zero")
x = 0
while poly(xs, x) != 0:
x += 1
return x
Start time: 2023-09-01 03:09:10
Duration: 17.29s
Result: Fail
def find_zero(xs: list):
""" xs are coefficients of a polynomial.
find_zero find x such that poly(x) = 0.
find_zero returns only one zero point, even if there are many.
Moreover, find_zero only takes list xs having even number of coefficients
and largest non zero coefficient as it guarantees
a solution.
>>> round(find_zero([1, 2]), 2) # f(x) = 1 + 2x
-0.5
>>> round(find_zero([-6, 11, -6, 1]), 2) # (x - 1) * (x - 2) * (x - 3) = -6 + 11x - 6x^2 + x^3
1.0
"""
if len(xs) % 2 == 1:
raise ValueError("xs must have an even number of coefficients")
if xs[-1] == 0:
raise ValueError("largest non-zero coefficient must be non-zero")
x = 0
for i in range(len(xs) // 2):
x += xs[i] * math.pow(x, i)
return x
Start time: 2023-09-01 03:12:04
Duration: 17.71s
Result: Fail
import math
def poly(xs: list, x: float):
"""
Evaluates polynomial with coefficients xs at point x.
return xs[0] + xs[1] * x + xs[1] * x^2 + .... xs[n] * x^n
"""
return sum([coeff * math.pow(x, i) for i, coeff in enumerate(xs)])
def find_zero(xs: list):
""" xs are coefficients of a polynomial.
find_zero find x such that poly(x) = 0.
find_zero returns only one zero point, even if there are many.
Moreover, find_zero only takes list xs having even number of coefficients
and largest non zero coefficient as it guarantees
a solution.
>>> round(find_zero([1, 2]), 2) # f(x) = 1 + 2x
-0.5
>>> round(find_zero([-6, 11, -6, 1]), 2) # (x - 1) * (x - 2) * (x - 3) = -6 + 11x - 6x^2 + x^3
1.0
"""
# Check if the input list has an even number of coefficients
if len(xs) % 2 == 1:
raise ValueError("The number of coefficients must be even.")
# Check if the largest coefficient is non-zero
if xs[-1] == 0:
raise ValueError("The largest coefficient must be non-zero.")
# Find the zero point by setting the polynomial equal to zero and solving for x
x = -xs[-1] / xs[-2]
# Return the zero point
return x
Start time: 2023-09-01 03:15:07
Duration: 18.62s
Result: Fail
import math
def poly(xs: list, x: float):
"""
Evaluates polynomial with coefficients xs at point x.
return xs[0] + xs[1] * x + xs[1] * x^2 + .... xs[n] * x^n
"""
return sum([coeff * math.pow(x, i) for i, coeff in enumerate(xs)])
def find_zero(xs: list):
""" xs are coefficients of a polynomial.
find_zero find x such that poly(x) = 0.
find_zero returns only only zero point, even if there are many.
Moreover, find_zero only takes list xs having even number of coefficients
and largest non zero coefficient as it guarantees
a solution.
>>> round(find_zero([1, 2]), 2) # f(x) = 1 + 2x
-0.5
>>> round(find_zero([-6, 11, -6, 1]), 2) # (x - 1) * (x - 2) * (x - 3) = -6 + 11x - 6x^2 + x^3
1.0
"""
if len(xs) % 2 == 1:
raise ValueError("xs must have an even number of coefficients")
if xs[-1] == 0:
raise ValueError("largest non-zero coefficient must be non-zero")
x = 0
while poly(xs, x) != 0:
x += 1
return x