ccf 201703-1 分蛋糕

import java.util.Scanner;

public class Cake {
    public static void main(String[] args) {
        Scanner input = new Scanner(System.in);
        int n = input.nextInt();
        int limit = input.nextInt();
        int[] arr = new int[n];

        for (int i = 0; i < arr.length; i++) {
            arr[i] = input.nextInt();
        }

        int count = 0;
        int sum = 0;
        for (int i = 0; i < arr.length; i++) {
            sum+=arr[i];
            if(sum >= limit){
                count++;
                sum = 0;
            }
        }
        if(sum != 0){
            count++;
        }
        System.out.println(count);
    }
}