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problem27.py
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/
problem27.py
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#projecteuler.net
from primes import primes
span = [-x for x in range(1,1001)]
for x in range(1,1001):
span.append(x)
span.sort()
m = 0
q1, q2 = 0, 0
sprimes = [2, 3, 5, 7, 11, 13, 17, 19, 23, 29, 31, 37, 41, 43, 47, 53, 59, 61, 67, 71, 73, 79, 83, 89, 97, 101, 103, 107, 109, 113, 127, 131, 137, 139, 149, 151, 157, 163, 167, 173, 179, 181, 191, 193, 197, 199, 211, 223, 227, 229, 233, 239, 241, 251, 257, 263, 269, 271, 277, 281, 283, 293, 307, 311, 313, 317, 331, 337, 347, 349, 353, 359, 367, 373, 379, 383, 389, 397, 401, 409, 419, 421, 431, 433, 439, 443, 449, 457, 461, 463, 467, 479, 487, 491, 499, 503, 509, 521, 523, 541, 547, 557, 563, 569, 571, 577, 587, 593, 599, 601, 607, 613, 617, 619, 631, 641, 643, 647, 653, 659, 661, 673, 677, 683, 691, 701, 709, 719, 727, 733, 739, 743, 751, 757, 761, 769, 773, 787, 797, 809, 811, 821, 823, 827, 829, 839, 853, 857, 859, 863, 877, 881, 883, 887, 907, 911, 919, 929, 937, 941, 947, 953, 967, 971, 977, 983, 991, 997]
for a in span:
for b in sprimes:
print a, b
n = 0
while True:
if n * n + a * n + b in primes:
n += 1
else:
if m < n:
q1, q2 = a, b
f = open('ans27', 'a+')
w = ''
for x in [a, b, m, q1, q2, n]:
w = w + str(x) + '+'
w = w + '\n'
f.write(w)
f.close()
m = n
break
f = open('ans27', 'a+')
f.write('final ans:')
w = str(m)+'+'+str(q1)+'+'+str(q2)
f.write(w)
print m, q1, q2
f.close()