#include <iostream>
#include <stdio.h>
#include <cmath>

using namespace std;

int main()
{
setlocale(LC_ALL, "Russian");
float x, k, st, f, s, r;
double e;
float t1, t2;

do // ïðîâåðêà íà ââîä õ
{
system("cls");
fflush(stdin);
cout << "Ââåäèòå ÷èñëî îò 1 äî 12: "; t1 = scanf("%f", &x);
}
while ((x < 1) || (x > 12) || (t1 == 0));

do // ïðîâåðêà íà ââîä å
{
system("cls");
fflush(stdin);
cout << "Ââåäèòå ÷èñëî îò 1 äî 12: " << x << endl;
cout << "Ââåäèòå òî÷íîñòü îò 0,0001 äî 0,1: "; t2 = scanf("%lf", &e);
}
while ((e < 0.0001) || (e > 0.1) || (t2 == 0));

s = x;
k = 3; // ñòåïåíü ïåðâîãî ÷èñëèòåëÿ ðàâíà 3

while (1)
{
st = 1; // ÷èñëèòåëü
for (int i = 1; i<= k; i++)
	{st = st * x;}

f = 1; // çíàìåíàòåëü
for (int i = 1; i<= k; i++)
	{ f = f * i; }

s = s + (st / f); //ïîäñ÷åò ñóììû

if (fabs(st/f) <= e)
{ break; }

k = k+2; // ìåíÿåì ñòåïåíü íà êàæäîì øàãå öèêëà
}
r = ((exp(x)-exp(-x))/2.0); // òàáëè÷íàÿ ôîðìóëà íàõîæäåíèÿ sh(x)
cout << "Ïîëó÷åííûé sh(" << x << ")= " << s << endl;
cout << "Òàáëè÷íîå çíà÷åíèå sh(" << x << ")= " << r << endl; // äëÿ ïðîâåðêè ïðàâèëüíîñòè ðàáîòû àëãîðèòìà
system("pause");
return 0;
}