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Solve LeetCode 3 Longest Substring Without Repeating Characters in C++ using the sliding window

Longest Substring Without Repeating Characters in C++ LeetCode 3 · sliding window · last index array Table of Contents Problem Statement Approach Algorithm C++ Program Input Sample Output Output Explanation Dry Run Flow of Execution Time Complexity Space Complexity Applications Key Points Interview Questions Frequently Asked Questions Conclusion Problem Statement 3. Longest Substring Without Repeating Characters Given a string s , find the length of the longest substring that contains no repeating characters. A substring is a continuous part of the string, so "pwke" is a subsequence of "pwwkew" but not a substring. Approach We use a sliding window . The window is the part of the string between start and end , and we always keep it free of repeated characters. An array lastIndex of size 128 remembers the most recent position of every ASCII ...

C++ Program for Function Overloading Using Parameter Order

#include <iostream>
using namespace std;

class maths
{
public:
    void display(int a, double b)
    {
        cout << "Integer is: " << a
             << " and Double is: " << b << endl;
    }

    void display(double b, int a)
    {
        cout << "Double is: " << b
             << " and Integer is: " << a << endl;
    }
};

int main()
{
    int a;
    double b;
    maths m;

    cout << "Enter integer and double:" << endl;
    cin >> a >> b;
    m.display(a, b);

    cout << "Enter double and integer:" << endl;
    cin >> b >> a;
    m.display(b, a);

    return 0;
}
  

๐Ÿ“˜ Explanation:

This program demonstrates function overloading in C++ using different order of parameters. Even though both functions have the same name display(), they are treated as different functions because the parameter sequence is different.

  • display(int a, double b) — displays an integer first and then a double.
  • display(double b, int a) — displays a double first and then an integer.

The compiler determines which function to call based on the order and type of arguments passed. This is an example of compile-time polymorphism.

๐Ÿงพ Sample Output:

Enter integer and double:
10 5.5
Integer is: 10 and Double is: 5.5
Enter double and integer:
3.14 7
Double is: 3.14 and Integer is: 7
  

๐Ÿ”‘ Keywords:

C++ function overloading, parameter order overloading, compile time polymorphism, C++ classes and objects, function overloading example

๐Ÿ“Œ Hashtags:

#CPlusPlus #FunctionOverloading #OOP #CPPBasics #Programming #1printf

๐Ÿ” Search Description:

Learn function overloading in C++ using different parameter order with a simple display example. Includes explanation, output, and dark-themed code.

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