diff options
Added today's oop practice
1 files changed, 131 insertions, 0 deletions
| -rw-r--r-- | Year 1/Object-oriented Programming/01-Practice-22.02.2022.cpp | 131 |
diff --git a/Year 1/Object-oriented Programming/01-Practice-22.02.2022.cpp b/Year 1/Object-oriented Programming/01-Practice-22.02.2022.cpp new file mode 100644 index 0000000..e037f37 --- /dev/null +++ b/Year 1/Object-oriented Programming/01-Practice-22.02.2022.cpp @@ -0,0 +1,131 @@ +#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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