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 This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters. Learn more about bidirectional Unicode characters Show hidden characters 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; } |