Объём сообщения равен 11 кбайт. сообщение содержит 11264 символа. какова мощность алфавита?

11 * 1024 = 11264 байтов.
11264 / 11264 = 1 байт или 8 битов на символ.
2^8 = 256 символов в алфавите.

#include <iostream>

using namespace std;

class Building {

private:

 string adress_m;

 int storeyCount_m;

 bool quarantine_m;

public:

 Building(string adress = "", int count = -1) {

  adress_m = adress;

  storeyCount_m = count;

 }

 void addStoreys(int count) {

  storeyCount_m += count;

 }

 void quarantineOn() {

  cout << "Quarantine: on";

  cout << endl;

  quarantine_m = 1;

 }

 void quarantineOff() {

  cout << "Quarantine: off";

  cout << endl;

  quarantine_m = 0;

 }

 void quarantineCheck() {

  cout << "Quarantine: ";

  if(quarantine_m) {

   cout << "on";

   cout << endl;

  } else {

   cout << "off";

   cout << endl;

  }

 }

 string getAdress() {

  return adress_m;

 }

 int getStorey() {

  return storeyCount_m;

 }

};

int main() {

Building build("dirt house", 1);

cout << build.getAdress() << " " << build.getStorey() << " storeys" << " " << endl;

build.quarantineCheck();

build.quarantineOn();

build.addStoreys(2);

cout << build.getAdress() << " " << build.getStorey() << " storeys" << " " << endl;

}

#include <iostream>

using namespace std;

class Building {

private:

 string adress_m;

 int storeyCount_m;

 bool quarantine_m;

public:

 Building(string adress = "", int count = -1) {

  adress_m = adress;

  storeyCount_m = count;

 }

 void addStoreys(int count) {

  storeyCount_m += count;

 }

 void quarantineOn() {

  cout << "Quarantine: on";

  cout << endl;

  quarantine_m = 1;

 }

 void quarantineOff() {

  cout << "Quarantine: off";

  cout << endl;

  quarantine_m = 0;

 }

 void quarantineCheck() {

  cout << "Quarantine: ";

  if(quarantine_m) {

   cout << "on";

   cout << endl;

  } else {

   cout << "off";

   cout << endl;

  }

 }

 string getAdress() {

  return adress_m;

 }

 int getStorey() {

  return storeyCount_m;

 }

};

int main() {

Building build("dirt house", 1);

cout << build.getAdress() << " " << build.getStorey() << " storeys" << " " << endl;

build.quarantineCheck();

build.quarantineOn();

build.addStoreys(2);

cout << build.getAdress() << " " << build.getStorey() << " storeys" << " " << endl;

}