I used the DP technique but I am getting WA in SubTask1 and remaining ones are correct . Can anyone suggest what's wrong in my code

#include <bits/stdc++.h>
using namespace std;
#define ll long long int
#define f(i,a,b) for(i=a;i<b;i++)
#define max_e max_element
 
int main(){
	ios_base::sync_with_stdio(false);
	cin.tie(NULL);
	ll t;
	cin>>t;
	ll A[t],B[t],SumF[t],result,ans,SumB[t],sum=0;
	int i,j;
	f(i,0,t)
		cin>>A[i];
	f(i,0,t){
		cin>>B[i];
		sum+=B[i];
	}
	if(t==1){