1049(15)
阿新 • • 發佈:2018-11-30
兩個超時
package com.company; import java.text.DecimalFormat; import java.util.Scanner; public class Main { public static void main(String[] args) { // write your code here Scanner sc=new Scanner(System.in); int n=sc.nextInt(); double[] arr=new double[n]; DecimalFormat df=new DecimalFormat("0.00"); for (int i=0;i<arr.length;i++){ arr[i]=sc.nextDouble(); } double sum=0; for (int i=0;i<arr.length;i++){ double s=0; for (int j=i;j<arr.length;j++){ s=s+arr[j]; sum=sum+s; } } System.out.println(df.format(sum)); } }