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C Program to Solve Two Sum Using Brute Force (With Algorithm & Output)

 Introduction The Two Sum problem is a popular coding interview question where we must find two indices of an array whose values add up to a given target. This program demonstrates a simple brute-force solution in C using nested loops and dynamic memory allocation. Problem Statement Given an integer array and a target value, return the indices of the two numbers such that they add up to the target. Each input has exactly one solution, and the same element cannot be used twice. The result should return the indices, not the values. If no solution exists, return NULL.  Algorithm / Logic Explanation Start the program. Traverse the array using a loop from index 0 to numsSize - 1 . Inside this loop, use another loop starting from i + 1 to numsSize - 1 . For every pair (i, j) , check if nums[i] + nums[j] == target . If condition becomes true: Allocate memory for 2 integers using malloc() . Store indices i and j . Set returnSize = 2 . Return the result poi...
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C++ Program to Swap Two Numbers Using Inline Function

C++ Inline Function – Swap Two Numbers

C++ Program to Swap Two Numbers Using Inline Function


#include <iostream>
using namespace std;

inline void swapNum(int &a, int &b)
{
    int temp = a;
    a = b;
    b = temp;
}

int main()
{
    int x, y;
    cout << "Enter two numbers: ";
    cin >> x >> y;

    swapNum(x, y);

    cout << "After swapping:\n";
    cout << "x = " << x << " y = " << y;
    return 0;
}

📘 Explanation:

This program demonstrates swapping of two numbers in C++ using an inline function and call by reference.

The function swapNum() is declared as an inline function and takes two parameters by reference. This allows the function to directly modify the original values of the variables.

Using call by reference avoids creating copies of variables and ensures that the swapped values are reflected in the main() function.

🧾 Sample Output:

Enter two numbers:
10 20
After swapping:
x = 20 y = 10

🔑 Keywords:

C++ inline function, swap two numbers in C++, call by reference, inline swap function, C++ basics

🔍 Search Description:

Learn how to swap two numbers in C++ using an inline function and call by reference. This program includes explanation, syntax, and output.

📌 Hashtags:

#CPlusPlus #InlineFunction #CallByReference #SwapNumbers #CPPBasics #1printf

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