Назовите основные элементы структуры информационной системы.

#include <iostream>
#include <cassert>

using namespace std;

void pie_price(int a, int b, int n)
{
assert((a >= 0) && (a <= 1000));
assert((b >= 0) && (b <= 99));
assert((n >= 1) && (n <= 1000));
double price = a * 1.0 + b / 100.0;
float res = price * n;
int kop = res * 100;
cout << "Rubles " << res << endl;
cout << "Kopeyks " << kop << endl;
}

int main()
{
int a, b, n;
cin >> a >> b >> n;
pie_price(a, b, n);
}

[l,r,строка,номер]
[0, 0, "a", 1]
[1, 1, "b", 2]
[1, 2, "bb", 3]
[2, 2, "b", 4]
[0, 3, "abba", 5]
[3, 3, "a", 6]
[3, 4, "aa", 7]
[4, 4, "a", 8]
[3, 5, "aaa", 9]
[4, 5, "aa", 10]
[5, 5, "a", 11]
[3, 6, "", 12]
[4, 6, "aaa", 13]
[5, 6, "aa", 14]
[6, 6, "a", 15]
[2, 7, "bb", 16]
[7, 7, "b", 17]
[6, 8, "aba", 18]
[8, 8, "a", 19]
[7, 9, "bab", 20]
[9, 9, "b", 21]

#код программы Ruby 22
s = "abbbab"
n = 0
for r in 0..s.size-1
    for l in 0..r
        t = s[l..r]
        if t.reverse == t
            n += 1
            p [l,r,t,n]
        end
    end
end