corelationanalysis

#include<iostream>
#include<cstring>
#include<cstdio>
#include<cmath>
using namespace std;


int main()
{



    while(1){
        string iteam1="",item2="";
        int sum1=0,sum2=0,sum3=0,sum4=0,total=0;
        char c;
        puts("Give item 1 name");
        cin>>iteam1;
        puts("Give item 2 name");
        cin>>item2;


        int a,b,c,d;

        cout<<"What is amount of "<<iteam1<<" and "<<item2<<endl;
        cin>>a;

        cout<<"What is amount of "<<iteam1<<" and not "<<item2<<endl;
        cin>>b;

    cout<<"What is amount of not "<<iteam1<<" and "<<item2<<endl;
        cin>>c;

    cout<<"What is amount of not "<<iteam1<<" and not "<<item2<<endl;
        cin>>d;

        sum1=a+c;
        sum2=b+d;

        sum3=a+b;
        sum4=c+d;

        total=sum1+sum2;

        cout<<"      \t "<<iteam1<<" \t\t"<<"not "<<iteam1<<" \t"<<"Erow"<<endl;
        cout<<item2<<"\t   "<<a<<"\t\t"<<c<<" \t\t"<<sum1<<endl;
        cout<<"not "<<item2<<"  "<<b<<" \t"<<d<<"\t\t"<<sum2<<endl;
        cout<<"__________________________________________________________________"<<endl;
        cout<<"Ecol\t    "<<sum3<<" \t"<<sum4<<" \t\t"<<total<<endl<<endl;

        double x,y;
        double expected=0.00;

        x= (sum1*sum3)/total;
        y= (sum3-x) ;




        cout<<"      \t "<<iteam1<<" \t\t"<<"not "<<iteam1<<" \t"<<"Erow"<<endl;
        cout<<item2<<"\t   "<<a<<"("<<x<<")\t"<<c<<"("<<(sum1-x)<<") \t"<<sum1<<endl;
        cout<<"not "<<item2<<"  "<<b<<"("<<y<<") \t"<<d<<"("<<(sum2-y)<<")\t"<<sum2<<endl;
        cout<<"__________________________________________________________________"<<endl;
        cout<<"Ecol\t    "<<sum3<<" \t"<<sum4<<" \t\t"<<total<<endl;


        expected= (((a-x)*(a-x))/x) + (((b-y)*(b-y))/y)
                + (((c-(sum1-x))*(c-(sum1-x)))/(sum1-x)) + (((d-(sum2-y))*(d-(sum2-y)))/(sum2-y)) ;



        printf("\nEx^2= %.2lf\n",expected);


        cout<<endl<<endl<<endl<<"Do you want to continue? (press Y/y for YES or N/n for NO)";cin>>c;
        if(tolower(c)=='N')break;

    }

    return 0;
}