Помогите пожалуйста с задачей со строками на С++

 #include  

#include  

#include  

#include  

 

using namespace std; 

 

void task(string& line) { 

    static const auto dot{ '.' }; 

    istringstream iss(line); 

    map box; 

    string key; 

    while (iss >> key) { 

        auto value = key; 

        auto last = value.length() - 1; 

        for (size_t i = 0; i < last; ++i) { 

            auto back = value.back(); 

            if (value[i] == back) { 

                value[i] = dot; 

                if (box.contains(key)) box[key] = value; 

                else box.insert({ key, value }); 

            } 

        } 

    } 

    for (const auto& [k, v] : box) { 

        auto pos = line.find(k); 

        while (pos != string::npos) { 

            line = line.replace(pos, v.size(), v); 

            pos = line.find(k); 

        } 

    } 

} 

 

int main() { 

    string line; 

    cout

 #include   

#include   

 

using namespace std; 

 

void task(string& line)  

{ 

    char letter{}; 

    for (auto it = line.rbegin(); it != line.rend(); it++) 

    { 

        if (*it == ' ')  

        { 

            letter = 0; continue; 

        } 

        if (!letter) 

        { 

            letter = *it;  

            continue; 

        } 

        if (*it == letter) *it = '.'; 

    } 

} 

 

int main() { 

    string line; 

    cout