blob: e4899a1f5d245581e5eab7915bf85df533df8c86 (
plain) (
blame)
1
2
3
4
5
6
7
8
9
|
#!/usr/bin/env python3
for _ in range(int(input())):
input()
a, d = ([int(i) for i in input().split()] for _ in range(2))
a.extend((a[0], a[-1]))
try:
print(max(d for i, d in enumerate(d) if d > a[i-1] + a[i+1]))
except ValueError:
print(-1)
|
