C++ Find the sum of first n Natural Numbers
#include <iostream>
int main() {
int n, sum = 0;
std::cout << "Enter a positive integer n: ";
std::cin >> n;
for (int i = 1; i <= n; ++i) {
sum += i;
}
std::cout << "Sum of first " << n << " natural numbers: " << sum;
return 0;
}