tower-breakers-1.cpp

/**
 * @file tower-breakers-1.cpp
 * @author Alexander Khvolis(ExpliuM)
 * @link https://www.hackerrank.com/challenges/tower-breakers-1/problem?isFullScreen=true
 * @version 0.1
 * @date 2023-02-21
 * 
 * @copyright Copyright (c) 2023
 * 
 */

#include <functional>
#include <iostream>
#include <sstream>
#include <fstream>
#include <string>
#include <vector>

using namespace std;

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

/*
 * Complete the 'towerBreakers' function below.
 *
 * The function is expected to return an INTEGER.
 * The function accepts following parameters:
 *  1. INTEGER n
 *  2. INTEGER m
 */

int towerBreakers(int n, int m)
{
    if (m == 1 || n % 2 == 0)
    {
        return 2;
    }
    return 1;
}

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 first_multiple_input_temp;
        getline(cin, first_multiple_input_temp);

        vector<string> first_multiple_input = split(rtrim(first_multiple_input_temp));

        int n = stoi(first_multiple_input[0]);

        int m = stoi(first_multiple_input[1]);

        int result = towerBreakers(n, m);

        cout << result << "\n";
        // 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<int, int>(isspace))));

    return s;
}

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

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

    return s;
}

vector<string> split(const string &str)
{
    vector<string> 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;
}