2020/9

y2020/p09.py

+import sys
+from itertools import combinations
+
+
+text = sys.stdin.read()
+ns = [int(n) for n in text.splitlines()]
+for i, n in enumerate(ns):
+    if i >= 25 and n not in {a + b for a, b in combinations(ns[:i][-25:], 2)}:
+        ans1 = n
+print(ans1)
+
+
+i, j, s = 0, 0, ns[0]
+while s != ans1:
+    if s < ans1:
+        j += 1
+        s += ns[j]
+    elif s > ans1:
+        s -= ns[i]
+        i += 1
+ans2 = min(ns[i:j]) + max(ns[i:j])
+print(ans2)