#include<iostream>
#include<fstream>
#include<vector>
#include<math.h>

using namespace std;

int main()
{
    float mang[9][9]={
{ 1, 1.376, 1.963, 3.08, 6.31, 12.71, 31.8, 63.7, 636.6 } ,
{ 0.816, 1.061, 1.336, 1.886, 2.92, 4.3, 6.96, 6.92, 31.6 },
{ 0.765, 0.978, 1.250, 1.638, 2.35, 3.18, 4.54, 5.84, 12.9 },
{ 0.741, 0.941, 1.190, 1.533, 2.13, 2.77, 3.75, 4.6, 8.61 },
{ 0.737, 0.92, 1.156, 1.476, 2.02, 2.57, 3.36, 4.03, 6.86 },
{ 0.718, 0.906, 1.134, 1.44, 1.943, 2.45, 3.14, 4.71, 5.96 },
{ 0.711, 0.896, 1.119, 1.415, 1.895, 2.36, 3.00, 3.5, 5.4 },
{ 0.706, 0.889, 1.108, 1.397, 1.860, 2.31, 2.9, 3.36, 5.04},
{ 0.703, 0.883, 1.110, 1.383, 1.833, 2.26, 2.82, 3.25, 4.78}
}; 
     
   for(int i=0;i<9;i++){
   	      cout<<endl;
		  for(int j=0;j<9;j++){
           cout<<mang[i][j]<<"\t";
		}
   }
    int k;
	int n;
	float Ptc;
	float t;
    do
	{
		cout << endl <<endl <<"Nhap n: ";
		cin >> n;
		if (n < 2 || n>10)
			cout << "Gia tri n khong hop le. Xin kiem tra lai" << endl;
	} while (n < 2 || n>10);

		cout << "Nhap Ptc: ";
		cin >> Ptc;
  
    if(Ptc=0,5) k=0;
    if(Ptc=0,6) k=1;
    if(Ptc=0,7) k=2;
    if(Ptc=0,8) k=3;
    if(Ptc=0,9) k=4;
    if(Ptc=0,95) k=5;
    if(Ptc=0,98) k=6;
    if(Ptc=0,99) k=7;
    if(Ptc=0,999) k=8;
     
   
	vector<float > arr;
	for (int i = 0; i < n; i++)
	{
		float x;
		cout << "Nhap gia tri: ";
		cin >> x;
		arr.push_back(x);
	}
	
	float c;
	float M;
	float arr_TrungBinh = 0;
	float arr_Tong;
NCSPTIT:
	vector<float > brr;
	for(int i=0;i<9;i++){
		  for(int j=0;j<9;j++){
   	   	   if(i==n-2 && j==k-4)
   	   	   t=mang[i][j];
		}
    }
	arr_Tong = 0;
	for (int i = 0; i < n; i++)
	{
		arr_Tong += arr[i];
	}
	cout << "n= " << n << endl;
	arr_TrungBinh = arr_Tong / n;
	cout << "Gia tri trung binh la: " << arr_TrungBinh << endl;


	for (int i = 0; i < n; i++)
	{
		float x = abs(arr[i] - arr_TrungBinh);
		brr.push_back(x);
	}
	cout << "Sai so du la: ";
	for (int i = 0; i < n; i++)
	{
		cout << brr[i] << "\t";
	}

	float brr_Tong_BinhPhuong = 0;
	for (int i = 0; i < n; i++)
	{
		brr_Tong_BinhPhuong += brr[i] * brr[i];
	}

	if (n != 1)
		c = sqrt(brr_Tong_BinhPhuong / (n - 1));
	cout << endl;

	M = c * t;
	cout << "Sai so trung binh binh phuong la: " << c << endl;
	cout << "t = " << t << endl;
	cout << "M = " << M << endl;
	bool Check = true;
	int dem = 0;
	for (int i = 0; i < n; i++)
	{
		if (M < brr[i])
		{
			Check = false;
			cout<<"xoa gia tri: "<<arr[i]<<endl <<endl;
			arr.erase(arr.begin() + i);
			dem++;
			break;
		}
	}
	n -= dem;
	if (Check == false)
	{
		goto NCSPTIT;
	}
	system("pause");
	return 0;
}