A simple program required outlining the basic concepts of array

#include
using namespace std;
int main() {
char FN[100],LN[100];
int ID,NOC;
int C[3];
cout << "Welcome HOD! "; // Type a number and press enter
cout << "Enter Student ID: "; // Type a number and press enter
cin >> ID; // Get user input from the keyboard
cout << "Student First Name: "; // Type a number and press enter
cin >> FN; // Get user input from the keyboard
cout << "Student Last Name: "; // Type a number and press enter
cin >> LN; // Get user input from the keyboard
cout << "No of Courses: "; // Type a number and press enter
cin >> NOC; // Get user input from the keyboard
    
int perc,TM;

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