from collections import deque, defaultdict, Counter
from heapq import heappush, heappop, heapify
from math import inf
from functools import lru_cache
from itertools import accumulate
from typing import List
import sys
input = sys.stdin.readline
T = int(input())
for _ in range(T):
N = int(input())
A = list(map(int, input().split()))
B = list(map(int, input().split()))
possible = True
for i in range(N-1):
if A[i] > B[i]:
possible = False
break
if A[i] == B[i]:
continue
if B[i] <= B[i+1] + 1:
continue
possible = False
break
if possible:
if A[N-1] > B[N-1]:
possible = False
elif A[N-1] == B[N-1] or B[N-1] <= B[0] + 1:
pass
else:
possible = False
if possible:
print('yes')
else:
print('no')
#include <iostream>
#include <bits/stdc++.h>
using namespace std;
#define ll long long
int main()
{
ios_base::sync_with_stdio(false);
int t;
cin >> t;
while (t--)
{
int n;
cin>>n;int a[n],b[n];
for(int i=0;i<n;i++)
cin>>a[i];
bool ans=1;
for(int i=0;i<n;i++)
{
cin>>b[i];
if(a[i]>b[i])
ans=false;
}
if(!ans)
{
cout<<"NO"<<"\n";
continue;
}
int temp=a[n-1];
a[n-1]=b[n-1];
for(int i=n-2;i>=0;i--)
{
if(a[i]!=b[i])
{
a[i]=min(b[i],a[1+i]+1);
if(a[i]!=b[i])
{
ans=false;
break;
}
}
}
if(ans)
{
if(temp!=b[n-1]&&!(a[n-1]-a[0]<=1))
ans=false;
}
cout<<(ans?"YES":"NO")<<"\n";
}
}1325A - EhAb AnD gCd | 746A - Compote |
318A - Even Odds | 550B - Preparing Olympiad |
939B - Hamster Farm | 732A - Buy a Shovel |
1220C - Substring Game in the Lesson | 452A - Eevee |
1647B - Madoka and the Elegant Gift | 1408A - Circle Coloring |
766B - Mahmoud and a Triangle | 1618C - Paint the Array |
469A - I Wanna Be the Guy | 1294A - Collecting Coins |
1227A - Math Problem | 349A - Cinema Line |
47A - Triangular numbers | 1516B - AGAGA XOOORRR |
1515A - Phoenix and Gold | 1515B - Phoenix and Puzzle |
155A - I_love_username | 49A - Sleuth |
1541A - Pretty Permutations | 1632C - Strange Test |
673A - Bear and Game | 276A - Lunch Rush |
1205A - Almost Equal | 1020B - Badge |
1353A - Most Unstable Array | 770A - New Password |