#include <iostream>
#include <string>
#include <algorithm>
bool P(int value)
{
std::string left = std::to_string(value);
std::reverse(left.begin(), left.end());
std::string right = std::to_string(value);;
return left == right;
}
int main()
{
int n;
std::cin >> n;
int count = 0;
for (int i = 1; i <= n; ++i)
{
if (P(i))
{
count++;
}
}
std::cout << "Count palindrome: " << count << std::endl;
return 0;
}
ответ: c++
#include <iostream>
#include <cmath>
int main()
{
using namespace std;
double a, x, y;
cin >> a >> x >> y;
double S = exp(a) * pow(tan(a), 2) / cos(pow(x, 2) + pow(y, 4));
cout << S;
return 0;
}