1)"Hello World!" Program
| Code: |
#include <iostream>
int main() {
std::cout << "Hello World!";
return 0;
}
|
2)Program to Add Two Numbers
| Code: |
#include <iostream>
using namespace std;
int main()
{
int firstNumber, secondNumber, sumOfTwoNumbers;
cout << "Enter two integers: ";
cin >> firstNumber >> secondNumber;
sumOfTwoNumbers = firstNumber + secondNumber;
cout << firstNumber << " + " << secondNumber << " = " << sumOfTwoNumbers;
return 0;
}
|
3)Program to Find Quotient and Remainder
| Code: |
#include <iostream>
using namespace std;
int main()
{
int divisor, dividend, quotient, remainder;
cout << "Enter dividend: ";
cin >> dividend;
cout << "Enter divisor: ";
cin >> divisor;
quotient = dividend / divisor;
remainder = dividend % divisor;
cout << "Quotient = " << quotient << endl;
cout << "Remainder = " << remainder;
return 0;
}
|
4)Program to Find Size of int, float, double and char in Your System
| Code: |
#include <iostream>
using namespace std;
int main()
{
cout << "Size of char: " << sizeof(char) << " byte" << endl;
cout << "Size of int: " << sizeof(int) << " bytes" << endl;
cout << "Size of float: " << sizeof(float) << " bytes" << endl;
cout << "Size of double: " << sizeof(double) << " bytes" << endl;
return 0;
}
|
5)rogram to Swap Two Numbers
| Using Temporary Variable: |
#include <iostream>
using namespace std;
int main()
{
int a = 5, b = 10, temp;
cout << "Before swapping." << endl;
cout << "a = " << a << ", b = " << b << endl;
temp = a;
a = b;
b = temp;
cout << "\nAfter swapping." << endl;
cout << "a = " << a << ", b = " << b << endl;
return 0;
}
|
| Without Using Temporary Variables: |
#include <iostream>
using namespace std;
int main()
{
int a = 5, b = 10;
cout << "Before swapping." << endl;
cout << "a = " << a << ", b = " << b << endl;
a = a + b;
b = a - b;
a = a - b;
cout << "\nAfter swapping." << endl;
cout << "a = " << a << ", b = " << b << endl;
return 0;
}
|
6)Program to Check Whether Number is Even or Odd
| Check Whether Number is Even or Odd using if else: |
#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 odd.";
return 0;
}
|
| Check Whether Number is Even or Odd using ternary operators: |
#include <iostream>
using namespace std;
int main() {
int n;
cout << "Enter an integer: ";
cin >> n;
(n % 2 == 0) ? cout << n << " is even." : cout << n << " is odd.";
return 0;
}
|
7)Program to Check Whether a character is Vowel or Consonant
| Code: |
#include <iostream>
using namespace std;
int main() {
char c;
bool isLowercaseVowel, isUppercaseVowel;
cout << "Enter an alphabet: ";
cin >> c;
isLowercaseVowel = (c == 'a' || c == 'e' || c == 'i' || c == 'o' || c == 'u');
isUppercaseVowel = (c == 'A' || c == 'E' || c == 'I' || c == 'O' || c == 'U');
if (!isalpha(c))
printf("Error! Non-alphabetic character.");
else if (isLowercaseVowel || isUppercaseVowel)
cout << c << " is a vowel.";
else
cout << c << " is a consonant.";
return 0;
}
|
8)Program to Find ASCII Value of a Character
| Code: |
#include <iostream>
using namespace std;
int main() {
char c;
cout << "Enter a character: ";
cin >> c;
cout << "ASCII Value of " << c << " is " << int(c);
return 0;
}
|
9)Program to Find Largest Number Among Three Numbers
| Find Largest Number Using if Statement: |
#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 << "Largest number: " << n1;
if(n2 >= n1 && n2 >= n3)
cout << "Largest number: " << n2;
if(n3 >= n1 && n3 >= n2)
cout << "Largest number: " << n3;
return 0;
}
|
| Find Largest Number Using if...else Statement: |
#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 << "Largest number: " << n1;
else if ((n2 >= n1) && (n2 >= n3))
cout << "Largest number: " << n2;
else
cout << "Largest number: " << n3;
return 0;
}
|
| Find Largest Number Using Nested if...else statement: |
#include <iostream>
using namespace std;
int main() {
float n1, n2, n3;
cout << "Enter three numbers: ";
cin >> n1 >> n2 >> n3;
if (n1 >= n2) {
if (n1 >= n3)
cout << "Largest number: " << n1;
else
cout << "Largest number: " << n3;
}
else {
if (n2 >= n3)
cout << "Largest number: " << n2;
else
cout << "Largest number: " << n3;
}
return 0;
}
|
10)Program to Calculate Sum of Natural Numbers
| Code: |
#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;
}
|
More Questions Coming Soon...
