C++ Exercises: Swap the values of two variables not using third variable
C++ Basic: Exercise-48 with Solution
Write a program in C++ which swap the values of two variables not using third variable.
Pictorial Presentation:
Sample Solution:
C++ Code :
#include <iostream>
using namespace std;
int main()
{
cout << "\n\n Swap two numbers without using third variable:\n";
cout << "---------------------------------------------------\n";
int num1, num2, temp;
cout << " Input 1st number : ";
cin >> num1 ;
cout << " Input 2nd number : ";
cin >> num2;
num2=num2+num1;
num1=num2-num1;
num2=num2-num1;
cout << " After swapping the 1st number is : "<< num1 <<"\n" ;
cout << " After swapping the 2nd number is : "<< num2 <<"\n\n" ;
}
Sample Output:
Swap two numbers without using third variable: --------------------------------------------------- Input 1st number : 25 Input 2nd number : 20 After swapping the 1st number is : 20 After swapping the 2nd number is : 25
Flowchart:
C++ Code Editor:
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