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#include <iostream>
// Source: https://github.com/triffon/oop-2021-22/blob/main/practicum/6/week1/%D0%A1%D1%82%D1%80%D1%83%D0%BA%D1%82%D1%83%D1%80%D0%B8.%20%D0%94%D0%B5%D0%BA%D0%B0%D0%BB%D1%80%D0%B0%D1%86%D0%B8%D1%8F%20%D0%B8%20%D0%B8%D0%B7%D0%BF%D0%BE%D0%BB%D0%B7%D0%B2%D0%B0%D0%BD%D0%B5%20%D0%BD%D0%B0%20%D1%81%D1%82%D1%80%D1%83%D0%BA%D1%82%D1%83%D1%80%D0%B8..pdf
// Ex 1
struct comp { // a + b * i
double a;
double b;
};
comp sum(comp x, comp y) {
return { x.a + y.a, x.b + y.b };
}
void printComp(comp x) {
std::cout << x.a << " + " << x.b << " * i";
}
void ex1() {
comp first = { 3, 5 };
comp second = { 7, 25 };
printComp(sum(first, second));
}
// Ex 2
struct Student {
int fn;
int course;
int grade;
};
Student initStudent(int fn, int course, int grade) {
return { fn, course, grade };
}
void printStudent(const Student& st) {
std::cout << "FN: " << st.fn << ";COURSE: " << st.course << ";GRADE: " << st.grade << std::endl;
}
void ex2() {
Student gosho = initStudent(12345, 1, 7);
printStudent(gosho);
}
// Ex 3
struct StudentList {
Student * students;
int size;
};
struct Group {
StudentList students;
int avgGrade;
};
Group cinGroup() {
int n;
std::cin >> n;
Student* students = new Student[n];
int gradeSum = 0;
for (int i = 0; i < n; i++) {
std::cin >> students[i].fn >> students[i].course >> students[i].grade;
gradeSum += students[i].grade;
}
return { { students, n }, gradeSum / n };
}
int countScolarship(const Group& gr, int minGrade) {
int count = 0;
for (int i = 0; i < gr.students.size; i++)
if (gr.students.students[i].grade >= minGrade) count++;
return count;
}
void ex3() {
Group ourGroup = cinGroup();
int minGrade;
std::cin >> minGrade;
std::cout << countScolarship(ourGroup, minGrade) << std::endl;
delete[] ourGroup.students.students;
}
// Ex 4
void orderByGrades(const StudentList& sl) {
for (int i = 0, minInd = i; i < sl.size; i++, minInd = i) {
for (int j = i; j < sl.size; j++) {
if (sl.students[j].grade > sl.students[minInd].grade)
minInd = j;
}
Student temp = sl.students[i];
sl.students[i] = sl.students[minInd];
sl.students[minInd] = temp;
}
}
StudentList scolarshipStudents(const Group& gr, int scolarshipGrade) {
StudentList res = { new Student[gr.students.size], gr.students.size };
int ind = 0;
for (int i = 0; i < gr.students.size; i++)
if (gr.students.students[i].grade >= scolarshipGrade)
res.students[ind++] = gr.students.students[i];
res.size = ind;
return res;
}
void ex4() {
Group ourGroup = cinGroup();
int scolarshipGrade;
std::cin >> scolarshipGrade;
StudentList withScolarship = scolarshipStudents(ourGroup, scolarshipGrade);
orderByGrades(withScolarship);
for (int i = 0; i < withScolarship.size; i++)
printStudent(withScolarship.students[i]);
delete[] ourGroup.students.students;
delete[] withScolarship.students;
}
int main() {
ex4();
}
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