StructureSort

//algo for SS

STEP - 1 : Read or Assign the data of structure objects. (Lets say Name, Marks in Physics, Chemistry and Maths).
STEP - 2 : total marks = phy marks + chem marks + maths marks. 
STEP - 3 : Now evaluate the rank of students by any simple sort based on the total marks.

            Loop from i=0 to N-2 with incrementation of i by 1 after 1 iteration.
                Inside the loop have one more loop from j=i+1 till j=N-1
                    If s[j].total<s[i].total or ( s[j].total==s[i].total && s[j].maths>s[i].maths ) or ( s[j].total==s[i].total && s[j].maths==s[i].maths && s[j].physics>s[i].physics)
                    then swap s[i] and s[j] by temp object of structure i.e.
                        temp=s[i]
                        s[i]=s[j]
                        s[j]=temp
                go to Inner Loop
             go to Outer Loop
STEP - 4 : Display the structure table with Ranks by using for loop running from i=0 to N-1.
STEP - 5 : Done.

// c++ code

#include <bits/stdc++.h>

using namespace std;

struct Stud
{
    string name;
    int maths;
    int physics;
    int chemistry;
    int total;
};

int main ()
{
    Stud s[4];

    s[0].name="Joe Gatto";
    s[1].name="James Murr";
    s[2].name="Brian Quinn";
    s[3].name="Sal Vulcano";


    s[0].maths=80;
    s[1].maths=95;
    s[2].maths=70;
    s[3].maths=50;

    s[0].physics=78;
    s[1].physics=98;
    s[2].physics=88;
    s[3].physics=68;

    s[0].chemistry=91;
    s[1].chemistry=97;
    s[2].chemistry=89;
    s[3].chemistry=85;

	s[0].total=s[0].physics+s[0].chemistry+s[0].maths;
	s[1].total=s[1].physics+s[1].chemistry+s[1].maths;
	s[2].total=s[2].physics+s[2].chemistry+s[2].maths;
	s[3].total=s[3].physics+s[3].chemistry+s[3].maths;

    int i,j;
    Stud temp;

    for(i=0;i<3;i++)
    {
        for(j=i+1;j<4;j++)
        {
            if(s[j].total<s[i].total||(s[j].total==s[i].total&&s[j].physics<s[i].physics)||(s[j].total==s[i].total&&s[j].physics==s[i].physics&&s[j].chemistry<s[i].chemistry)
            {
                temp=s[j];
                s[j]=s[i];
                s[i]=temp;
            }
        }
    }

cout<<"Rank\tName\tPhysics\tChemistry\tMaths\tTotal"<<"\n";

    for(i=0;i<4;i++)
    {
        cout<<i+1<<"\t"<<s[i].name<<"\t\t"<<s[i].physics<<"\t\t"<<s[i].chemistry<<"\t\t"<<s[i].maths<<"\t\t"<<s[i].total<<"\n";
    }
    return 0;
}