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

using namespace std;

double myFunction(double);
bool isEqual(double);
void fillVector(vector<double>& vec) {
	double input;

	for (int i = 0; i < 10; i++) {
		cout << "Enter integer: ";
		cin >> input;
		vec.push_back(myFunction(input));
	}
}

int main() {
	int quantity = 0;
	vector<double> vec1;

	fillVector(vec1);
	quantity = count_if(vec1.begin(), vec1.end(), [](double i) {return i == 12.25; });

	cout << "Quantity of numbers which are equal to 12.25 is " << count_if(vec1.begin(), vec1.end(), isEqual) << '\n' << quantity << endl;
}

bool isEqual(double i) {
	return i == 12.25;
}

double myFunction(double x) {
	if (x < 3) {
		return x *= 5;// ან x = x * 5;
	}
	else if (x > 3) {
		return x -= 3;
	}
	else if (x = 3) {
		return x;
	}
}