nikita

#include <iostream>
#include <string>
#include <vector>
#include <algorithm>

using namespace std;

string manipulate(vector<string> arr)
{
    string output;

    for (auto i: arr)
        if (count_if(i.begin(), i.end(), [](char a){return isupper(a);}) <= 1)
            output += i + '.';

    return output;
}

//Функция шоб выводить вектор. Возможн потом пригодится
template <typename T>
void printVector(vector<T> arr)
{
    for (auto i: arr)
        cout << i << endl;
}

vector<string> mySplit(string str)
{
    string bufStr = str;
    string delimiter = ".";

    vector<string> outputArr;

    size_t pos = 0;
    string token;
    while ((pos = bufStr.find(delimiter)) != string::npos)
    {
        token = bufStr.substr(0, pos);
        outputArr.push_back(token);
        bufStr.erase(0, pos + delimiter.length());
    }

    outputArr.push_back(bufStr);

    return outputArr;
}

int main()
{
    string test = "Hello world. There is a lotus. Somewehere on the Earth.";

    vector<string> buf = mySplit(test);

    cout << manipulate(buf);


    return 0;
}