Funding social care: an international comparison
Lessons for Britain from other countries 原文:
To judge by the record of successive British governments, reforming social
care is almost impossible. But other rich countries have managed to gra…
前缀和
一维
求[l,r]的和,s[r] - s[l - 1]
下标从1开始,否则求[1,r]的和,需要特判
public class Main {public static void main(String[] args) {Scanner in new Scanner(System.in);int n in.nextInt();int m in.nextInt();int[] a …