برنامه‌ای بنویسید که طول و عرض مستطیلی دریافت کند و محیط و مساحت آن را چاپ کند.
#include <iostream>
int main() {
double length, width;
// Ask the user for the length of the rectangle
std::cout << "Enter the length of the rectangle: ";
std::cin >> length;
// Ask the user for the width of the rectangle
std::cout << "Enter the width of the rectangle: ";
std::cin >> width;
// Calculate the perimeter of the rectangle
double perimeter = 2 * (length + width);
// Calculate the area of the rectangle
double area = length * width;
// Display the results
std::cout << "The perimeter of the rectangle is: " << perimeter << std::endl;
std::cout << "The area of the rectangle is: " << area << std::endl;
return 0;
}
برنامه‌ای بنویسید که یک عدد دریافت کند و زوج و فرد بودن آن را گزارش کند.
#include <iostream>
int main() {
int number;
// Ask the user for a number
std::cout << "Enter a number: ";
std::cin >> number;
// Check if the number is even or odd
if (number % 2 == 0) {
std::cout << "The number " << number << " is even." << std::endl;
} else {
std::cout << "The number " << number << " is odd." << std::endl;
}
return 0;
}
برنامه ای بنویسید که یک زمان مشخص بر اساس ساعت، دقیقه و ثانیه دریافت کند و مشخص کند چند ثانیه از شروع روز گذشته است.
#include <iostream>
int main() {
int hours, minutes, seconds;
// Prompt the user to enter hours
std::cout << "Enter the hours (0-23): ";
std::cin >> hours;
// Prompt the user to enter minutes
std::cout << "Enter the minutes (0-59): ";
std::cin >> minutes;
// Prompt the user to enter seconds
std::cout << "Enter the seconds (0-59): ";
std::cin >> seconds;
// Calculate the total seconds since the start of the day
int totalSeconds = (hours * 3600) + (minutes * 60) + seconds;
// Display the result
std::cout << "Total seconds since the start of the day: " << totalSeconds << std::endl;
return 0;
}
برنامه‌ای بنویسید که یک عدد دریافت کند و قدرمطلق آن را چاپ نماید.
#include <iostream>
#include <cmath> // Include cmath library for abs function
int main() {
double number;
// Ask the user for a number
std::cout << "Enter a number: ";
std::cin >> number;
// Calculate the absolute value
double absoluteValue = std::abs(number);
// Display the result
std::cout << "The absolute value of " << number << " is " << absoluteValue << std::endl;
return 0;
}
برنامه‌ای بنویسید که ضرایب یک معادله درجه دوم را دریافت کند و ریشه های معادله راچاپ کند.
#include <iostream>
#include <cmath> // Include cmath library for sqrt function
int main() {
double a, b, c;
// Ask the user for the coefficients
std::cout << "Enter the coefficient a: ";
std::cin >> a;
std::cout << "Enter the coefficient b: ";
std::cin >> b;
std::cout << "Enter the coefficient c: ";
std::cin >> c;
// Calculate the discriminant
double discriminant = b * b - 4 * a * c;
// Check the nature of the roots based on the discriminant
if (discriminant > 0) {
// Two distinct real roots
double root1 = (-b + std::sqrt(discriminant)) / (2 * a);
double root2 = (-b - std::sqrt(discriminant)) / (2 * a);
std::cout << "The roots are real and different." << std::endl;
std::cout << "Root 1: " << root1 << std::endl;
std::cout << "Root 2: " << root2 << std::endl;
} else if (discriminant == 0) {
// One real root
double root = -b / (2 * a);
std::cout << "The roots are real and the same." << std::endl;
std::cout << "Root: " << root << std::endl;
} else {
// Complex roots
double realPart = -b / (2 * a);
double imaginaryPart = std::sqrt(-discriminant) / (2 * a);
std::cout << "The roots are complex and different." << std::endl;
std::cout << "Root 1: " << realPart << " + " << imaginaryPart << "i" << std::endl;
std::cout << "Root 2: " << realPart << " - " << imaginaryPart << "i" << std::endl;
}
return 0;
}
برنامه‌ای بنویسید که سه ضلع یک مثلث را دریافت کند و مشخص کند مثلث متساوی الاضلاع، متساوی الساقین یا مختلف الاضلاع است
#include <iostream>
int main() {
double side1, side2, side3;
// Prompt the user to enter the lengths of the three sides of the triangle
std::cout << "Enter the length of the first side: ";
std::cin >> side1;
std::cout << "Enter the length of the second side: ";
std::cin >> side2;
std::cout << "Enter the length of the third side: ";
std::cin >> side3;
// Check if the sides form a valid triangle
if (side1 + side2 > side3 && side1 + side3 > side2 && side2 + side3 > side1) {
// Determine the type of triangle
if (side1 == side2 && side2 == side3) {
std::cout << "The triangle is equilateral." << std::endl;
} else if (side1 == side2 || side1 == side3 || side2 == side3) {
std::cout << "The triangle is isosceles." << std::endl;
} else {
std::cout << "The triangle is scalene." << std::endl;
}
} else {
std::cout << "The lengths entered do not form a valid triangle." << std::endl;
}
return 0;
}
برنامه‌ای بنویسید که از ورودی عدد n را دریافت کند و مجموع ۱ تا n را محاسبه کند.
#include <iostream>
int main() {
int n;
// Ask the user for a number
std::cout << "Enter a positive integer: ";
std::cin >> n;
// Ensure the input is a positive integer
if (n <= 0) {
std::cout << "Please enter a positive integer." << std::endl;
return 1; // Exit the program with an error code
}
// Calculate the sum from 1 to n
int sum = 0;
for (int i = 1; i <= n; ++i) {
sum += i;
}
// Display the result
std::cout << "The sum of integers from 1 to " << n << " is " << sum << std::endl;
return 0;
}
برنامه‌ای بنویسید که از ورودی n را دریافت کند و فاکتوریل آن را محاسبه کند.
#include <iostream>
int main() {
int n;
unsigned long long factorial = 1; // Initialize factorial to 1 to handle larger values of n
// Ask the user for a non-negative integer
std::cout << "Enter a non-negative integer: ";
std::cin >> n;
// Check if the input is valid (non-negative)
if (n < 0) {
std::cout << "Please enter a non-negative integer." << std::endl;
return 1; // Exit the program with an error code
}
// Calculate the factorial of n
for (int i = 1; i <= n; ++i) {
factorial *= i;
}
// Display the result
std::cout << "The factorial of " << n << " is " << factorial << std::endl;
return 0;
}
برنامه‌ای بنویسید که نمره ۱۰۰ دانشجو از ورودی دریافت کند و میانگین نمرات بالای ۱۵ را محاسبه کند.
#include <iostream>
int main() {
const int numStudents = 100;
int scores[numStudents];
int sum = 0;
int countAbove15 = 0;
// Ask the user to enter the scores of 100 students
std::cout << "Enter the scores of 100 students:\n";
// Input scores
for (int i = 0; i < numStudents; ++i) {
std::cout << "Enter score for student " << i + 1 << ": ";
std::cin >> scores[i];
// Check if the score is above 15
if (scores[i] > 15) {
sum += scores[i];
countAbove15++;
}
}
// Calculate the average score above 15
double averageAbove15 = 0.0;
if (countAbove15 > 0) {
averageAbove15 = static_cast<double>(sum) / countAbove15;
}
// Display the result
std::cout << "The average score of students with scores above 15 is: " << averageAbove15 << std::endl;
return 0;
}
