Input_Space_Separated.cpp

#include <bits/stdc++.h>  // Includes all standard C++ libraries
using namespace std;       // Allows using standard functions without "std::" prefix

// Function to read space-separated numbers from input
vector<int> input_space_separated() {
    vector<int> arr;         // Create an empty vector (dynamic array) to store numbers
    
    string line;             // Create a string variable to hold the input line
    getline(cin, line);      // Read the entire line of input from user
    
    stringstream ss(line);   // Convert the string into a stringstream (makes it easy to extract data)
    
    int num;                 // Temporary variable to store each number
    while(ss >> num) {       // Extract numbers one by one from the stringstream
                              // The >> operator automatically:
                              // 1. Skips any whitespace (spaces, tabs)
                              // 2. Reads the next number
                              // 3. Returns false when there are no more numbers
        arr.push_back(num);   // Add the number to our vector
    }
    
    return arr;              // Return the vector containing all numbers
}

int main() {
    // Call the function to get space-separated numbers
    vector<int> arr = input_space_separated();
    
    // Loop through the vector and print each number
    for(int i = 0; i < arr.size(); i++)
        cout << arr[i] << " ";  // Print number followed by space
    
    cout << endl;  // Move to next line after printing all numbers
    
    return 0;  // Program ends successfully
}