Example: Summing Integers in a Vector in C++

C
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// Summing Integers in a Vector
#include <iostream>
#include <vector> // Required for std::vector
#include <numeric> // Required for std::accumulate (alternative)
using namespace std;

int main() {
    // Step 1: Declare and initialize a vector of integers
    vector<int> numbers = {10, 20, 30, 40, 50};

    // Step 2: Initialize a variable to store the sum
    int total = 0;

    // Step 3: Iterate through the vector and add each element to the total
    for (int num : numbers) { // Range-based for loop for convenience
        total += num;
    }

    // Alternative using std::accumulate (requires <numeric>)
    // int total_accumulate = accumulate(numbers.begin(), numbers.end(), 0);
    // cout << "The total sum using std::accumulate is: " << total_accumulate << endl;


    // Step 4: Display the final result
    cout << "The sum of integers in the vector is: " << total << endl;

    return 0;
}