Initial commit

problem-50.py

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+
+from primes import sieve, is_prime
+from copy import deepcopy
+
+if __name__ == '__main__':
+    primes = list(sieve(1000005))
+    longest = []
+    total = 0
+    chain = []
+    for idx, prime in enumerate(primes):
+        chain = [prime]
+        total = sum(chain)
+        while total < 1000000:
+            if is_prime(total) and len(chain) > len(longest):
+                longest = deepcopy(chain)
+            chain.append(primes[idx+len(chain)])
+            total = sum(chain)
+    print(longest, len(longest), sum(longest))
+