Help me in solving CS2023_PON problem

help
,
1

My issue

My code

#include<bits/stdc++.h>
using namespace std;

void getsubsequence(int index,vector<int>&arr,vector<int>&temp,vector<vector<int>>&ans){
    if(index>=arr.size()){
        ans.push_back(temp);
        return;
    }

    // Pick the Index
    temp.push_back(arr[index]);

    getsubsequence(index+1,arr,temp,ans);

    // Not pick Index
    temp.pop_back();
    getsubsequence(index+1,arr,temp,ans);

}

bool isPresent(vector<vector<int>>&ans,int b){

    for(int i=0;i<ans.size();i++){
        
        int res=ans[i][0];

        for(int j=i+1;j<ans[i].size();j++){
            res=(res&ans[i][j]);
        cout<<"Took:"<<res<<endl;
        }

        if(res==b){
            cout<<"HI"<<endl;
            return 1;
        }
        res=0;
    }
    return 0;
}


int main()
{
    int t;
    cin>>t;

    while(t--){
        int n;
        cin>>n;

        int b;
        cin>>b;

        vector<int>v;
        for(int i=0;i<n;i++){
            int x;
            cin>>x;

            v.push_back(x);
        }

        vector<vector<int>>ans;
        vector<int>temp;

        getsubsequence(0,v,temp,ans);

        for(int i=0;i<ans.size();i++){
            for(auto it:ans[i]){
                cout<<it<<"->";
            }cout<<endl;
        }

        int count=0;
        
        if(isPresent(ans,b)) cout<<"YES"<<endl;
        else cout<<"NO"<<endl;
        cout<<"REACHED HERe"<<endl;
    }
    return 0;
}

Problem Link: CS2023_PON Problem - CodeChef