为了解决这个问题,首先需要知道BLEU值是如何计算出来的. BLEU全称是Bilingual Evaulation Understudy.其意思是双语评估替补.所谓Understudy(替补),意思是代替人进行翻译结果的评估. BLEU的思想基于Count based Model,尽管它并不完美,但它提供了一种非常有效的以单一数字指标评估机器翻译结果的方法. 下面以一个例子说明BLEU的计算. 假如正确的翻译参考(2)个是: The cat is on the desk. There is a
You have been given a matrix C N*M, each element E of C N*M is positive and no more than 1000, The problem is that if there exist N numbers a1, a2, … an and M numbers b1, b2, …, bm, which satisfies that each elements in row-i multiplied with ai and e
Leftmost Digit Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 65536/32768 K (Java/Others) Total Submission(s): 2519 Accepted Submission(s): 1101 Problem Description Given a positive integer N, you should output the leftmost digit of N^N. In
1639 - Candy Time limit: 3.000 seconds 1639 CandyLazyChild is a lazy child who likes candy very much. Despite being very young, he has two large candy boxes, each contains n candies initially. Everyday he chooses one box and open it. He chooses the fi
Problem Description Given a positive integer N, you should output the leftmost digit of N^N. Input The input contains several test cases. The first line of the input is a single integer T which is the number of test cases. T test cases follow. Each t
题目链接:https://vjudge.net/problem/LightOJ-1282 1282 - Leading and Trailing PDF (English) Statistics Forum Time Limit: 2 second(s) Memory Limit: 32 MB You are given two integers: n and k, your task is to find the most significant three digits, and le