1)

#include <iostream>
#include <algorithm>
using namespace std;

double calculation(double x)
{
if (x < 7) return x * x * x - 100;
else if (x == 7) return 11 + 2 * x;
else return 4 * x - 7;
}

int main()
{
double arr[25];
double a;
for (size_t i = 0; i < 25; i++)
{
cin >> a;
arr[i] = calculation(a);
}
cout << "25is toli elementebis raodenobaa: " << count(begin(arr), end(arr), 25) << endl;
cout << count_if(begin(arr), end(arr), [](double k) {return k < -101 || k > 60; });

2)

#include <iostream>
#include <vector>
#include <fstream>
using namespace std;

void printVector(const vector<double>& a)

int main()
{
vector<double> vec;
vector<double> vec2;
double k;
ifstream ifs("reals.txt");
while (ifs >> k) {
vec.push_back(k);
}
for (size_t i = 0; i < vec.size(); i++)
 {
if (vec[i] > -15 && vec[i] < 72) vec2.push_back(vec[i]);
}
printVector(vec);
printVector(vec2);
int count{};
for (size_t i = 0; i < vec.size(); i++)
{
if (vec[i] >= 72 && vec[i] <= 15) count++;
}
cout << count << endl;
for (size_t i = 0; i < vec2.size(); i++)
{
if (i % 2 != 0) vec[i] = pow(vec[i], 10);
}
printVector(vec2);
}

3)

#include <iostream>
using namespace std;

struct side
{
double area;
double diagonal;
};

side Square(const double &gverdi)

side data;
data.area = gverdi * gverdi;
data.diagonal = gverdi * sqrt(2);
return data;
}

double Square(const double& gverdi, double& fartobi)

int main()
{
double S, a;
cin >> a;
side c;
c = Square(a);
cout << "Diagonalia: " << c.diagonal << endl << "Fartobia: " << c.area << endl;
double b = 4.5;
double d = Square(b, S);
cout << "Diagonalia: " << d << endl << "Fartobia: " << S << endl;

}
4)

#include "iostream"
#include "fstream"
using namespace std;

class Car
{
public:
string name;
double xarji; //lari
double speed; //kilometri saatshi
double cost; //dolari
Car() {}
Car(string n, double x, double s, double c)
{
name = n;
xarji = x;
speed = s;
cost = c;
}
void printF()
{
cout << "Manqanis saxeli: " << name << endl;
cout << "100 kilometrze xarji larebshi: " << xarji << endl;
cout << "Sichqare: " << speed << endl;
cout << "Fasi: " << cost << endl;
}
};

int main()
{
Car cr1, cr2, cr3;
ifstream ifs("cars.txt");
ifs >> cr1.name >> cr1.xarji >> cr1.speed >> cr1.cost;
ifs >> cr2.name >> cr2.xarji >> cr2.speed >> cr2.cost;
ifs >> cr3.name >> cr3.xarji >> cr3.speed >> cr3.cost;
cr1.printF();
cr2.printF();
cr3.printF();
Car minX = cr1;
if (cr2.xarji < minX.xarji) minX = cr2;
if (cr3.xarji < minX.xarji) minX = cr3;
Car maxC = cr1;
if (cr2.cost > maxC.cost) maxC = cr2;
if (cr3.cost > maxC.cost) maxC = cr3;
Car* maxS = &minX;
if (maxC.speed > maxS->speed) maxS = &maxC;
ofstream ofs("fastest.txt");
ofs << "Manqanis saxelia: " << maxS->name << endl << "Xarjia: " << maxS->xarji << endl << "Sichqarea: " << maxS-
>speed << endl << "Fasi: " << maxS->cost << endl;