## Algorithm

Problem Name: Classes and Objects

In this HackerRank Functions in C++ programming problem solution,

A class defines a blueprint for an object. We use the same syntax to declare objects of a class as we use to declare variables of other basic types. For example:

``````Box box1;          // Declares variable box1 of type Box
Box box2;          // Declare variable box2 of type Box
``````

Kristen is a contender for valedictorian of her high school. She wants to know how many students (if any) have scored higher than her in the 5 exams given during this semester. Create a class named Student with the following specifications:

• An instance variable named scoresto hold a student's 5 exam scores.
• A void input() function that reads 5 integers and saves them to scores .
• An int calculateTotalScore() function that returns the sum of the student's scores.

Constraints

1 <= n <= 100

0 <= examscore <= 50

Sample Input

The first line contains n,, the number of students in Kristen's class. The n subsequent lines contain each student's 5 exam grades for this semester.

``````3
30 40 45 10 10
40 40 40 10 10
50 20 30 10 10
``````

Sample Output

``````1
``````

## Code Examples

### #1 Code Example with C++ Programming

```Code - C++ Programming```

``````
#include <cmath>
#include <cstdio>
#include <vector>
#include <iostream>
#include <algorithm>
#include <cassert>
using namespace std;

class Student{
private:
int sum = 0;
public:
void input(){
for(int i = 0, a; i  <  5; i++){
cin >> a;
sum += a;
}
}
int calculateTotalScore(){
return sum;
}
};

int main(void)
{
int n; // number of students
cin >> n;
Student *s = new Student[n]; // an array of n students

for(int i = 0; i  <  n; i++){
s[i].input();
}

// calculate kristen's score
int kristen_score = s[0].calculateTotalScore();

// determine how many students scored higher than kristen
int count = 0;
for(int i = 1; i  <  n; i++){
int total = s[i].calculateTotalScore();
if(total > kristen_score){
count++;
}
}

// print result
cout << count;

return 0;
}
``````
Copy The Code &

Input

cmd
3 30 40 45 10 10 40 40 40 10 10 50 20 30 10 10

Output

cmd
1