Answer to Question #332687 in C++ for mare

Question

Write a two dimensional array program that reads student scores and then assigns grades based on the following scheme:

Grade is A if score is > = 90;

Grade is B if score is > = 80;

Grade is C if score is > = 70;

Grade is D if score is > = 60;

Grade is F otherwise.

The program prompts the user to enter the total number of students, then prompts the user to enter all of the scores, and concludes by displaying the grades. 

Answer 1

#include <iostream>


using namespace std;


int main()
{


	int numStd;
	cout << "Please, enter the total number of students: ";
	cin >> numStd;
	int** scores = new int*[numStd];
	for (int i = 0; i < numStd; i++)
		scores[i] = new int[2];
	for (int i = 0; i < numStd; i++)
	{
		cout << "Please, enter scores of student "<<i+1<<": ";
		cin >> scores[i][0];
		if (scores[i][0] >= 90)
			scores[i][1] = 65;
		else if(scores[i][0] >= 80)
			scores[i][1] = 66;
		else if (scores[i][0] >= 70)
			scores[i][1] = 67;
		else if (scores[i][0] >= 60)
			scores[i][1] = 68;
		else 
			scores[i][1] = 69;
	}
	cout << "The grades of students:\n";
	cout << "\t\tScores\tGrades\n";
	for (int i = 0; i < numStd; i++)
	{
		cout << "Student " << i+1 <<"\t"<< scores[i][0] << "\t" << char(scores[i][1]) << endl;
	}
}