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  1. #include <iostream>
  2. #include <vector>
  3. #include <string>
  4. using namespace std;
  5. //int total_prints=0;
  6. //i made it static instead
  7. class StudentGradesInfo {
  8. private:
  9.     string student_name;//first to add
  10.     string student_id;
  11.     vector<string> course_names;
  12.     vector<double> grades;
  13.  
  14. public:
  15.     static int total_prints;
  16.         //bug 1
  17.         // StudentGradesInfo(){
  18.         //     assert(false);
  19.         // }
  20.  
  21.     StudentGradesInfo(string name, string id) : student_name(name), student_id(id) {}
  22.  
  23.     //name inconsistency and logic errors
  24.     //bug 2 also should use double
  25.     //adjacent grade ?! and 0 or 100 give grade and 100!
  26.     double GetGrade(double grade){
  27.         if (grade < 0 || grade > 100) {
  28.             cout << "Invalid grade entered.\n";
  29.             return -1;
  30.         }
  31.         return grade;
  32.     }
  33.     bool AddGrade(double grade, string course_name) {
  34.         grade =GetGrade(grade);
  35.         grades.push_back(grade);
  36.         for(auto course : course_names) {
  37.             if (course == course_name) {
  38.                 cout << "Course already exists.\n";
  39.                 return false;
  40.             }
  41.         }
  42.         course_names.push_back(course_name);
  43.         return true;
  44.     }
  45.  
  46.     string getId(){
  47.         return student_id;
  48.     }
  49.     void PrintAllCourses() {
  50.         total_prints++;
  51.         cout << "Grades for student: " << student_id << "\n";
  52.         for (size_t i = 0; i < course_names.size(); ++i)
  53.             cout << course_names[i] << " = " << grades[i] << "\n";
  54.  
  55.         cout <<"-------------------------------------\n";
  56.     }
  57.  
  58.     //bug here should give course size not grades size
  59.     int getCourseTotalCount(){
  60.         return course_names.size();
  61.     }
  62.     string getCourseName_Grade(int idx){
  63.         if(idx<0 or idx>=(int)grades.size()){
  64.             return "invalid";
  65.         }
  66.         string ans = course_names[idx]+"_"+to_string(grades[idx]);
  67.         return ans;
  68.     }
  69.     string get_total_gradesSum() {
  70.         double sum = 0;
  71.         int total = getCourseTotalCount()*100;
  72.         for (size_t i = 0; i <(int) grades.size(); ++i) {
  73.             sum += grades[i];
  74.         }
  75.         string ans = to_string((int)sum)+"/"+to_string(total);
  76.         return ans;
  77.     }
  78. };
  79.  
  80. int StudentGradesInfo::total_prints = 0; 
  81.  
  82. int main() {
  83.     StudentGradesInfo st1("Mostafa", "5000123");
  84.     st1.AddGrade(70, "Math");
  85.     st1.AddGrade(70, "Programming 1");
  86.     st1.AddGrade(85, "Programming 2");
  87.  
  88.     StudentGradesInfo st2("Manar", "5000193");
  89.     st2.AddGrade(75, "Math");
  90.     st2.AddGrade(77, "Programming 1");
  91.     st2.AddGrade(95, "Programming 2");
  92.     st1.PrintAllCourses();
  93.     st2.PrintAllCourses();
  94.  
  95.     string p = st1.get_total_gradesSum();
  96.     cout <<p<< "\n";
  97.     string p2 = st2.get_total_gradesSum();
  98.     cout <<p2<< "\n";
  99.  
  100.     cout << StudentGradesInfo::total_prints << endl;
  101.     return 0;
  102. }
  103.  
Success #stdin #stdout 0s 5296KB
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stdin
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Standard input is empty
stdout
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Grades for student: 5000123
Math = 70
Programming 1 = 70
Programming 2 = 85
-------------------------------------
Grades for student: 5000193
Math = 75
Programming 1 = 77
Programming 2 = 95
-------------------------------------
225/300
247/300
2
https://ideone.com/ykM0zH
language:
C++ (gcc 8.3)
created:
6 days ago
visibility:
public

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