Sum from 0.01 to 1 by using double

test_sumdouble.cpp

#include <iostream>

int main() {
    double sum = 0.0;
    double step = 0.01;
    double each = 0.01;

    for (int i = 0; i < 100; ++i) {
        sum += step;
        step += each;
    }

    std::cout << sum << std::endl;
}