1205. Sum of Cubes

Write a function that takes a positive integer n, sums all the cubed values from 1 to n, and returns that sum.

Assume that the input n will always be a positive integer.

Examples: (Input --> output)

2 --> 9 (sum of the cubes of 1 and 2 is 1 + 8)
3 --> 36 (sum of the cubes of 1, 2, and 3 is 1 + 8 + 27)

Solution:

int sumCubes(int n) {
  int result = 0;
  for (int i=1; i<=n; i++) {
    result += i*i*i;
  }
  return result;
}

import 'package:collection/collection.dart';

int sumCubes(int n) {
  List<int> l = new List<int>.generate(n+1, (i) => i * i * i);
  return l.sum;
}