Larry's Array

Language : C++

(NOTE : Try a few times yourself before moving to the solution)

#include <bits/stdc++.h>


using namespace std;

string ltrim(const string &);
string rtrim(const string &);
vector split(const string &);

/*
 * Complete the 'larrysArray' function below.
 *
 * The function is expected to return a STRING.
 * The function accepts INTEGER_ARRAY A as parameter.
 */

string larrysArray(vector  A) {
    // Complete this function
    int iCnt=0;
    for (int i=0;iA[j]) iCnt++;
        }
    }
    return (iCnt % 2 == 0) ? "YES" : "NO";
}

int main()
{
    ofstream fout(getenv("OUTPUT_PATH"));

    string t_temp;
    getline(cin, t_temp);

    int t = stoi(ltrim(rtrim(t_temp)));

    for (int t_itr = 0; t_itr < t; t_itr++) {
        string n_temp;
        getline(cin, n_temp);

        int n = stoi(ltrim(rtrim(n_temp)));

        string A_temp_temp;
        getline(cin, A_temp_temp);

        vector A_temp = split(rtrim(A_temp_temp));

        vector A(n);

        for (int i = 0; i < n; i++) {
            int A_item = stoi(A_temp[i]);

            A[i] = A_item;
        }

        string result = larrysArray(A);

        fout << result << "\n";
    }

    fout.close();

    return 0;
}

string ltrim(const string &str) {
    string s(str);

    s.erase(
        s.begin(),
        find_if(s.begin(), s.end(), not1(ptr_fun(isspace)))
    );

    return s;
}

string rtrim(const string &str) {
    string s(str);

    s.erase(
        find_if(s.rbegin(), s.rend(), not1(ptr_fun(isspace))).base(),
        s.end()
    );

    return s;
}

vector split(const string &str) {
    vector tokens;

    string::size_type start = 0;
    string::size_type end = 0;

    while ((end = str.find(" ", start)) != string::npos) {
        tokens.push_back(str.substr(start, end - start));

        start = end + 1;
    }

    tokens.push_back(str.substr(start));

    return tokens;
}