I always get WA in #5
here is my code, somebody help me please.
<code>
#include<stack>
#include<iostream>
#include<algorithm>
#include<vector>
#include<list>
#include<iterator>
using namespace std;

int getSafe(vector<string> a,int an, vector<string> b, int bn){
    int d=0;
    for(int i=0;i<an;i++){
        for(int j=0;j<bn;j++)
            if(a[i]==b[j]){
                d++;
                break;
            }
    }
    return d;
}
struct ve{
    vector<string> v;
};

int main(){
    int n,N,m;
    cin>>N;
    string str;
    vector<string> menu;
    for(int i=0;i<N;i++){
        cin>>str;
        menu.push_back(str);
    }
    cin>>n;
    int a,b;
    cin>>b;
    vector<string> fMenu;
    for(int i=0;i<b;i++){
        cin>>str;
        fMenu.push_back(str);
    }
    int i=0;
    int nums[102];
    ve res[102];
    while(i<n){
        cin>>a;
        nums[i]=a;
        for(int j=0;j<a;j++){
            //cout<<"d";
            cin>>str;
            //cout<<"s";
            res[i].v.push_back(str);
        }
        i++;
    }
    cin>>m;
    for(int i=0;i<n;i++){
        int x=getSafe(res[i].v,nums[i],fMenu,n);
        int c=getSafe(menu,N,res[i].v,nums[i]);
        if(x-nums[i]==0)
            cout<<"YES\n";
        else
            if(N-b-nums[i]+x-m<0)
                cout<<"NO\n";
            else
                cout<<"MAYBE\n";
    }
    return 0;
}
</code>