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73 строки
3.0 KiB
C++
73 строки
3.0 KiB
C++
#include <iostream>
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#include <iomanip>
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#include <cstring>
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#include <bitset>
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using namespace std;
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struct Student {
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char name[17];
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uint16_t admissionYear;
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float averageGrade;
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bool isMale : 1;
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uint8_t completedCourses;
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Student* groupLeader;
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};
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int main() {
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const int numberOfStudents = 3;
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Student students[numberOfStudents];
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students[0].admissionYear = 2023;
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students[0].averageGrade = 4.5;
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students[0].isMale = true;
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students[0].completedCourses = 5;
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students[0].groupLeader = nullptr;
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students[1].admissionYear = 2022;
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students[1].averageGrade = 3.8;
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students[1].isMale = false;
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students[1].completedCourses = 6;
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students[1].groupLeader = &students[0];
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students[2].admissionYear = 2021;
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students[2].averageGrade = 3.2;
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students[2].isMale = true;
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students[2].completedCourses = 7;
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students[2].groupLeader = nullptr;
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for (int i = 0; i < numberOfStudents; ++i) {
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cout << "\nÈíôîðìàöèÿ î ñòóäåíòå " << i + 1 << ":\n";
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cout << "Àäðåñ ïîëÿ admissionYear: " << static_cast<void*>(&students[i].admissionYear) << ", Ñìåùåíèå: "
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<< offsetof(Student, admissionYear) << ", Ðàçìåð: " << sizeof(students[i].admissionYear) << " áàéò, "
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<< "Øåñòíàäöàòåðè÷íîå: " << hex << students[i].admissionYear << ", Äâîè÷íîå: "
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<< bitset<16>(students[i].admissionYear) << '\n';
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cout << "Àäðåñ ïîëÿ averageGrade: " << static_cast<void*>(&students[i].averageGrade) << ", Ñìåùåíèå: "
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<< offsetof(Student, averageGrade) << ", Ðàçìåð: " << sizeof(students[i].averageGrade) << " áàéò, "
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<< "Çíà÷åíèå: " << students[i].averageGrade << '\n';
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cout << "Àäðåñ è áèòîâîå ïîëå isMale: " << static_cast<void*>(&students[i].isMale) << ", Ñìåùåíèå: "
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<< offsetof(Student, isMale) << ", Ðàçìåð: " << sizeof(students[i].isMale) << " áèò, "
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<< "Çíà÷åíèå: " << (students[i].isMale ? "ìóæñêîé" : "æåíñêèé") << '\n';
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cout << "Àäðåñ ïîëÿ completedCourses: " << static_cast<void*>(&students[i].completedCourses) << ", Ñìåùåíèå: "
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<< offsetof(Student, completedCourses) << ", Ðàçìåð: " << sizeof(students[i].completedCourses) << " áàéò, "
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<< "Çíà÷åíèå: " << static_cast<int>(students[i].completedCourses) << '\n';
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cout << "Àäðåñ ïîëÿ groupLeader: " << static_cast<void*>(&students[i].groupLeader) << ", Ñìåùåíèå: "
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<< offsetof(Student, groupLeader) << ", Ðàçìåð: " << sizeof(students[i].groupLeader) << " áàéò, "
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<< "Øåñòíàäöàòåðè÷íîå: " << hex << reinterpret_cast<uintptr_t>(students[i].groupLeader) << '\n';
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// Âûâîäèì ïðåäñòàâëåíèå ñòðóêòóðû â ïàìÿòè
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cout << "Ïðåäñòàâëåíèå â ïàìÿòè (â øåñòíàäöàòåðè÷íîé ñèñòåìå):\n";
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const uint8_t* bytes = reinterpret_cast<const uint8_t*>(&students[i]);
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for (size_t j = 0; j < sizeof(Student); ++j) {
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cout << hex << setfill('0') << setw(2) << static_cast<int>(bytes[j]) << ' ';
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}
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cout << '\n';
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}
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return 0;
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}
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