Loops in C++ C++ Program to Find Factorial For any positive number n, it’s factorial is given by: factorial = 1*2*3...*n Factorial of negative number cannot be found and factorial of 0 is 1. Program #include <iostream> using namespace std; int main() { unsigned int n; unsigned long long factorial = 1; cout << Saving Bookmark this article Bookmarked

Basics in C++ C++ Program to Check Leap Year All years which are perfectly divisible by 4 are leap years except for century years (years ending with 00) which is leap year only it is perfectly divisible by 400. Program #include <iostream> using namespace std; int main() { int year; cout << "Enter a year: "; cin & Saving Bookmark this article Bookmarked

Loops in C++ C++ Program to Calculate Sum of Natural Numbers Program #include <iostream> using namespace std; int main() { int n, sum = 0; cout << "Enter a positive integer: "; cin >> n; for (int i = 1; i <= n; ++i) { sum += i; } cout << "Sum = " << sum; return 0; } Output Enter a po Saving Bookmark this article Bookmarked

Basics in C++ C++ Program to Find Largest Number Among Three Numbers Program 1 using if only #include <iostream> using namespace std; int main() { float n1, n2, n3; cout << "Enter three numbers: "; cin >> n1 >> n2 >> n3; if(n1 >= n2 && n1 >= n3) { cout << Saving Bookmark this article Bookmarked

Basics in C++ C++ Program to Check Whether a character is Vowel or Consonant. Five alphabets a, e, i, o and u are known as vowels. All other alphabets except these 5 alphabets are known are consonants. Program #include <iostream> using namespace std; int main() { char c; int isLowercaseVowel, isUppercaseVowel; cout << "Enter an alphabet: "; cin &am Saving Bookmark this article Bookmarked

Basics in C++ C++ Program to Check Whether Number is Even or Odd Program 1 using if else statement #include <iostream> using namespace std; int main() { int n; cout << "Enter an integer: "; cin >> n; if ( n % 2 == 0) cout << n << " is even."; else cout << n << " is o Saving Bookmark this article Bookmarked

Basics in C++ C++ Program to Find All Roots of a Quadratic Equation For a quadratic equation ax2+bx+c = 0 (where a, b and c are coefficients), it’s roots is given by following the formula. The term b<sup>2</sup>-4ac is known as the discriminant of a quadratic equation. The discriminant tells the nature of the roots. If discriminant is greater than Saving Bookmark this article Bookmarked

Basics in C++ C++ Program to Multiply two Numbers Program #include <iostream> using namespace std; int main() { double firstNumber, secondNumber, productOfTwoNumbers; cout << "Enter two numbers: "; // Stores two floating point numbers in variable firstNumber and secondNumber respectively cin >> firstNumber Saving Bookmark this article Bookmarked

Basics in C++ C++ Program to Find ASCII Value of a Character A character variable holds ASCII value (an integer number between 0 and 127) rather than that character itself in C programming. That value is known as ASCII value. For example, ASCII value of ‘A’ is 65. What this means is that, if you assign ‘A’ to a character variable, 65 i Saving Bookmark this article Bookmarked

Basics in C++ C++ Program to Swap Two Numbers with and without using third variable In this article, we will use two methods to swap two variables, one with a third variable and another without 3 third variable. 1. Program using the third variable For using the third variable we will take two input as a and b and third variable temp. for the logic, we will first assign first Saving Bookmark this article Bookmarked