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Codeforces Round #797 (Div. 3)(B. Array Decrements)

 

Bismillahir Rahmanir Rahim
///Author: Tanvir Ahmmad
///CSE,Islamic University,Bangladesh

#include<iostream>
#include<cstdio>
#include<algorithm>
#include<string>
#include<cstring>
#include<sstream>
#include<cmath>
#include<cstring>
#include<vector>
#include<queue>
#include<map>
#include<set>
#include<stack>
#include<vector>
#include<iterator>
#include <functional> ///sort(arr,arr+n,greater<int>()) for decrement of array
/*every external angle sum=360 degree
  angle find using polygon hand(n) ((n-2)*180)/n*/
///Floor[Log(b)  N] + 1 = the number of digits when any number is represented in base b
using namespace std;
typedef long long ll;

int main()
{
    ll n,tst;
    cin>>tst;
    while(tst--)
    {
        cin>>n;
        ll arr_a[n+2],arr_b[n+2],ma=0,flag=0;
        for(ll i=0;i<n;i++) cin>>arr_a[i];
        for(ll i=0;i<n;i++) cin>>arr_b[i];
        for(ll i=0;i<n;i++) ma=max(ma,(arr_a[i]-arr_b[i]));
        for(ll i=0;i<n;i++) arr_a[i]-=ma;
        for(ll i=0;i<n;i++)
            if(arr_a[i]!=arr_b[i] && arr_b[i]!=0) flag=1;
        if(flag) cout<<"NO"<<endl;
        else cout<<"YES"<<endl;
    }
    return 0;
}
///Alhamdulillah

Problem Link: https://codeforces.com/contest/1690/problem/B


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