Задача на C

№ 4

#include <iostream>
using namespace std;
bool is_leap(int year) {
bool result;
if (year % 4 != 0) result = false;
else if (0 == year % 400) result = true;
else if (0 == year % 100) result = false;
else result = true;
return result;
}
int days(int year, int month) {
if (month < 1 || month > 12 || year < 1) return 0;
int months[]{ 365, 31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31 };
if (month != 2 || !is_leap(year)) return months[month];
return 29;
}
int input(const char* msg) {
cout << msg;
int value;
cin >> value;
cin.ignore(0x1000, '\n');
return value;
}
int main() {
const auto year = input("Year: ");
const auto month = input("Month: ");
const auto quantity = days(year, month);
cout << "Quantity: " << quantity << '\n';
}

C

#include <iostream>

using namespace std;

bool is_leap(int year) {

    bool result;

    if (year % 4 != 0) result = false;

    else if (0 == year % 400) result = true;

    else if (0 == year % 100) result = false;

    else result = true;

    return result;

}

int days(int year, int month) {

    if (month < 1 || month > 12 || year < 1) return 0;

    int months[]{ 365, 31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31 };

    if (month != 2 || !is_leap(year)) return months[month];

    return 29;

}

int input(const char* msg) {

    cout << msg;

    int value;

    cin >> value;

    cin.ignore(0x1000, '\n');

    return value;

}

int main() {

    const auto year = input("Year: ");

    const auto month = input("Month: ");

    const auto quantity = days(year, month);

    cout << "Quantity: " << quantity << '\n';

}

№ 2

#include <iostream>
using namespace std;
int main() {
cout << "A: ";
double a;
cin >> a;
cout << "B: ";
double b;
cin >> b;
auto c = a - b;
if (b == c) puts("Поровну");
else {
puts(b > c ? "Вера" : "Валя");
cout << "На " << fabs(b - c) << " кг\n";
}
}

C

#include <iostream>

using namespace std;

int main() {

    cout << "A: ";

    double a;

    cin >> a;

    cout << "B: ";

    double b;

    cin >> b;

    auto c = a - b;

    if (b == c) puts("Поровну");

    else {

        puts(b > c ? "Вера" : "Валя");

        cout << "На " << fabs(b - c) << " кг\n";

    }

}