please i need ideas on how i will put delete function in this program...? tnx Code: #include<iostream> #include<algorithm> //for std::sort #include<string> using namespace std; struct student { int id; string name; string nationality; string gender; }; void insert(student array[],const unsigned int MAX_STUDENT); bool sortByID(const student& a, const student& b) { return ( a.id < b.id ); } char sortByName(const student& a, const student& b) { return ( a.name < b.name); } char sortByNationality(const student& a, const student& b) { return (a.nationality < b.nationality); } void mySort(student array[],const unsigned int MAX) { int opt = 0; cout<<"Welcome to sorting function please do the following selection"<<endl; cout<<"***************************************************"<<endl; cout<<"* 1.Sort by student ID"<<endl; cout<<"* 2.Sort by student Name"<<endl; cout<<"* 3.Sort by Nationality"<<endl; cout<<"***************************************************"<<endl; cout<<"Selection: "; cin >> opt; cout<<"\n\n"; switch(opt) { case 1: std::sort(array,array+MAX,sortByID); break; case 2: std::sort(array,array+MAX,sortByName); break; case 3: std::sort(array,array+MAX,sortByNationality);break; } } void display(const student array[], unsigned int MAX); int main() { const unsigned int MAX_SIZE = 100; student array[MAX_SIZE]; int option = 0; bool exitProgram = false; do { cout <<"Welcome to student recording system"<<endl; cout <<"Please choose one of the following option\n\n"<<endl; cout <<"1.Insert new record"<<endl; cout <<"2.Sort record"<<endl; cout <<"3.Delete record"<<endl; cout <<"4.Display record"<<endl; cout <<"0) Exit program\n\n\n"; cin >> option; switch(option) { case 1: insert(array,MAX_SIZE); break; case 2: cout<<"you picked sorting\n"; cout<<"Now sorting\n\n\n"; mySort(array,MAX_SIZE); cout<<"Sorting done\n\n\n"; break; case 3: //do delete case 4: display(array,MAX_SIZE); break; default : exitProgram = true; break; } }while(!exitProgram); return 0; } void insert(student array[],const unsigned int MAX_STUDENT) { cout<<"\n\n"; for(unsigned int i = 0 ; i < MAX_STUDENT; i++) { cout<<"For student #"<<(i+1)<<endl<<endl;; cout <<"Enter student ID: "; cin >>array[i].id; cin.ignore(100,'\n'); cout<<endl; cout <<"Enter student name: "; cin >>array[i].name; cin.ignore(100,'\n'); cout<<endl; cout <<"Enter student nationality: "; cin >>array[i].nationality; cin.ignore(100,'\n'); cout<<endl; cout <<"Enter student gender: "; cin >>array[i].gender; cin.ignore(100,'\n'); cout<<endl; } } void display(const student array[], unsigned int MAX) { cout<<"\\************************************************\\"<<endl; for(unsigned int i = 0; i < MAX; i++) { cout<<"---------------------------------------------------"<<endl;; cout<<"Student #:"<<(i+1)<<endl; cout<<"ID# : "<<array[i].id<<endl; cout<<"Name : "<<array[i].name<<endl; cout<<"Nationality : "<<array[i].nationality<<endl; cout<<"Gender : "<<array[i].gender<<endl<<endl; cout<<"---------------------------------------------------"<<endl;; } cout<<"\n\\************************************************\\"<<endl; }