C++ Basic Programs
➤ Hello World! in C++
➤ Print Number in C++
➤ Add 2 Numbers C++
➤ Arithmetic Operation
➤ Sum Avg of 3 Number
➤ Area Program in C++
➤ Simple Interest in C++
➤ Find ASCII value in C++
➤ Swap 2 Number in C++
Flow Control Programs
➤ Even-Odd in C++
➤ +ve, -ve, 0 in C++
➤ Vowel-Consonant
➤ Greatest of 3 no.
➤ Check Leap Year
➤ Calculator Program
➤ Reverse a Number
➤ Sum of Natural Number
➤ GCD of 2 Number
➤ LCM of 2 Number
➤ Find Power in C++
➤ Fibonacci Series in C++
➤ Palindrome Number
➤ Find Factorial in C++
➤ Factorial Using Recursion
➤ Prime Number in C++
➤ Prime Number b/w 1-N
Array
➤ Linear Search in C++
➤ Binary Search in C++
Others
➤ Introduction to C++
➤ Data Types in C++
➤ Range of Data Types
➤ Void main, main vs int main
➤ Hello World! in C++
➤ Print Number in C++
➤ Add 2 Numbers C++
➤ Arithmetic Operation
➤ Sum Avg of 3 Number
➤ Area Program in C++
➤ Simple Interest in C++
➤ Find ASCII value in C++
➤ Swap 2 Number in C++
Flow Control Programs
➤ Even-Odd in C++
➤ +ve, -ve, 0 in C++
➤ Vowel-Consonant
➤ Greatest of 3 no.
➤ Check Leap Year
➤ Calculator Program
➤ Reverse a Number
➤ Sum of Natural Number
➤ GCD of 2 Number
➤ LCM of 2 Number
➤ Find Power in C++
➤ Fibonacci Series in C++
➤ Palindrome Number
➤ Find Factorial in C++
➤ Factorial Using Recursion
➤ Prime Number in C++
➤ Prime Number b/w 1-N
Array
➤ Linear Search in C++
➤ Binary Search in C++
Others
➤ Introduction to C++
➤ Data Types in C++
➤ Range of Data Types
➤ Void main, main vs int main
C++ Program to Swap Two Number | In this tutorial, We will swap two Numbers using a temporary variable or without using any temporary variable. To write this program you should understand what is data types in C++. There are various methods to swap two numbers.
C++ program to swap two Number using the third variable
#include<iostream>
using namespace std;
int main()
{
float num1, num2, temp;
cout << "Enter two Number: ";
cin >> num1 >> num2;
//Display Numbers before Swapping
cout << "Before Swap," << endl;
cout << "num1 = " << num1 << endl;
cout << "num2 = " << num2 << endl;
//Swap num1 and num2
temp = num1;
num1 = num2;
num2 = temp;
//Display Numbers after Swapping
cout << "\nAfter Swap," << endl;
cout << "num1 = " << num1 << endl;
cout << "num2 = " << num2 << endl;
return 0;
}
Output:-
Enter two Number: 12 15
Before Swap,
num1 = 12
num2 = 15
After Swap,
num1 = 15
num2 = 12
C++ program to swap two Number without using any third variable
Here we will use arithmetic operators + and – to swap two number.
#include<iostream>
using namespace std;
int main()
{
int n1, n2;
cout << "Enter two Number: ";
cin >> n1 >> n2;
n1 = n1 + n2;
n2 = n1 - n2;
n1 = n1 - n2;
cout << "After swap:" << endl;
cout << n1 << " " << n2 << endl;
return 0;
}
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Learn More C++ Programming Examples,
- Introduction to C++ Programming
- Data Types in C++ Programming
- Find Range of Data Types in C++
- Void main(), main() vs int main() in C++
- Hello World! Program in C++
- Addition of Two Numbers in C++
- Add Subtract Multiply Divide 2 Numbers
- Sum and Average of three numbers in C++
- Area of Circle Triangle Rectangle in C++
- Calculate Simple Interest in C++
- C++ program to find ASCII value
- C++ program to swap two Number
- Check Even or Odd Number in C++
- Find Positive Negative Zero in C++
- Check Vowel or Consonant in C++
- Greatest of Three Numbers in C++
- Program to Check Leap Year in C++
- Simple Calculator Program in C++
- Program to Reverse a Number in C++
- Sum of Natural Numbers in C++
- C++ Program for GCD of Two Numbers
- C++ Program for LCM of Two Numbers
- Find Power of a Number in C++
- Fibonacci Series Program in C++
- Check Palindrome Number in C++
- Factorial of a Number Program in C++
- Factorial Using Recursion in C++
- Prime Number Program in C++
- Prime Number b/w 1 to N in C++