import java.util.Scanner; public class Main { public static void main(String[] args) { Scanner sc = new Scanner(System.in); int m = sc.nextInt(); int n = sc.nextInt(); int classes[] = new int[m]; int remain = n; int needCarNums = 1; for (int i = 0; i < m; i++) { classes[i] = sc.nextInt(); if (classes[i] > remain) { remain = n; needCarNums++; } remain -= classes[i]; } System.out.println(needCarNums); } }