Codeforces Vanya and Cubes

import java.util.Scanner;public class VanyaAndCubes {public static void main(String[] args) {Scanner scanner = new Scanner(System.in);int n = scanner.nextInt();int count = 0;for(int i =1; ; i++) {int level = add(i);if(n >= level) {count++;n -= level;} else {break;}}System.out.println(count);}public static int add(int k) {int sum = 0;for(int i = 1; i <=k ;i++) {sum += i;}return sum;}}