Tạo class Sinh vien, tính điểm trung bình, sắp xếp theo điểm trung bình, xuất điểm trung bình > 7, xoá 1 vị trí bất kỳ

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include <bits/stdc++.h\>

include <iomanip\> using namespace std;

define foreach(length) for(int i = 0; i < length; i)class SinhVien {public: string maSV; string hoTen; string lop;float tin1, tin2, tin3, tin4, diemTB;public: SinhVien() { maSV = ""; hoTen = ""; lop = ""; tin1 = 0; tin2 = 0; tin3 = 0; tin4 = 0; diemTB = 0; }void tinhTB() { diemTB = (tin1 + tin2 + tin3 + tin4) / 4; }float getDiemTB() {return diemTB; }void nhap() { cout<<"Nhap ma SV: "; cin.ignore(); getline(cin, maSV); cout<<"Nhap ho ten: "; getline(cin, hoTen); cout<<"Nhap lop: "; getline(cin, lop); cout<<"Nhap diem Tin 1 - 2 - 3 - 4: "; cin>>tin1>>tin2>>tin3>>tin4;tinhTB(); }void in() { cout<<"Ma SV: "<<maSV<<" | "; cout<<"Ho ten: "<<hoTen<<" | "; cout<<"Lop: "<<lop<<" | "; cout<<"Tin 1: "<<tin1<<" | "; cout<<"Tin 2: "<<tin2<<" | "; cout<<"Tin 3: "<<tin3<<" | "; cout<<"Tin 4: "<<tin4<<" | "; cout<<"Diem trung binh: "<<diemTB<<"\n"; }; };void nhapLop(SinhVien sv[], int n) {foreach(n) { cout<<"Nhap thu sinh thu "<<i + 1<<endl; sv[i].nhap(); } }void inLop(SinhVien sv[], int n) {foreach(n) sv[i].in(); }void swap(SinhVien *a, SinhVien *b) { SinhVien temp; temp = *a; *a = *b; *b = temp; }void bubleSort(SinhVien sv[], int length) {int i, j;for(int i = 0; i < length - 1; i) {for(int j = 0; j < length - i - 1; j++) {if(sv[j].getDiemTB() > sv[j + 1].getDiemTB()) {swap(&sv[j], &sv[j + 1]); } } } }void lonHon7(SinhVien sv[], int length) {foreach(length) {if(sv[i].getDiemTB() > 7) { sv[i].in(); } } }void xoaPhanTu(SinhVien sv[], int &length, int pos) {if(pos < 0) pos = 0;if(pos >= length) pos = length - 1;for(int i = pos; i < length - 1; i++) { sv[i] = sv[i + 1]; } length--; }int main() { SinhVien sv[30];int n; cout<<"Nhap si so cua lop: "; cin>>n;nhapLop(sv, n);inLop(sv, n); cout<<"\nSap xep theo diem trung binh: \n";bubleSort(sv, n);inLop(sv, n); cout<<"\nDiem trung binh > 7: \n";lonHon7(sv, n);int key; cout<<"\nNhap vi tri muon xoa: "; cin>>key; cout<<"\nMang sau khi xoa: \n";xoaPhanTu(sv, n, key - 1);inLop(sv, n); cout<<endl; system("pause"); return 0; }