@coderArmy - Day1 Array Equal or not

1. using map

2. sorting and comparison

3. nested loops

class Solution{
    public:
    bool check(vector<ll> A, vector<ll> B, int N) {
        unordered_map<long,long> mp;
        for(long long i=0 ; i<N ; i++ ){mp[A[i]]++;}
        for(long long i=0 ; i<N ; i++ ){mp[B[i]]--;}
        for(auto i=mp.begin();i!=mp.end();i++) {
            if(i->second!=0) return false;
        }
        return true;
    }
};

class Solution{
    public:
    bool check(vector<ll> A, vector<ll> B, int N) {
        sort(A.begin(),A.end());
        sort(B.begin(),B.end());
        for(int i=0; i<N ; i++){if(A[i] != B[i]) return false;}
        return true;
    }
};