1541 - Student’s question 时间限制:1秒 内存限制:128兆 696 次提交 134 次通过 题目描述 YYis a student. He is tired of calculating the quadratic equation. He wants you to help him to get the result of the quadratic equation. The quadratic equation’ format is as follows: ax…

参考自:https://www.cnblogs.com/ECJTUACM-873284962/p/6394836.html 1541 - Student’s question 时间限制:1秒 内存限制:128兆 题目描述 YY is a student. He is tired of calculating the quadratic equation. He wants you to help him to get the result of the quadratic equation. T…

该博客转自www.pyimagesearch.com,进行了相关修改补充. Over the past few months I've gotten quite the number of requests landing in my inbox to build a bubble sheet/Scantron-like[简而言之答题卡] test reader using computer vision and image processing techniques. And while I'…

在下面的代码中,设置了两种不同的协议规则:一种是老师对学生设置的协议:即老师发出命令后,学生站起来.回答问题.坐下; 另一种是我对学生设置的协议:即学生按照我的协议中的初始化函数去初始化一个整数. //我设置的协议Myprotocol,里面有我设置的协议规则(属性.函数)作为一个单独的文件 // Myprotocol.h // 协议 // // Created by ma c on 15/8/12. // Copyright (c) 2015年. All rights reserved. //…

Lazy Student time limit per test 2 seconds memory limit per test 256 megabytes input standard input output standard output Student Vladislav came to his programming exam completely unprepared as usual. He got a question about some strange algorithm o…

D. Lazy Student   Student Vladislav came to his programming exam completely unprepared as usual. He got a question about some strange algorithm on a graph — something that will definitely never be useful in real life. He asked a girl sitting next to…

D. Lazy Student Time Limit: 20 Sec Memory Limit: 256 MB 题目连接 http://codeforces.com/contest/606/problem/D Description Student Vladislav came to his programming exam completely unprepared as usual. He got a question about some strange algorithm on a gr…

1.什么是T test? t-test:比较数据的均值,告诉你这两者之间是否相同,并给出这种不同的显著性(即是否是因为偶然导致的不同) The t test (also called Student’s T Test) compares two averages (means) and tells you if they are different from each other. The t test also tells you how significant the differences…

题目链接: http://codeforces.com/contest/606/problem/D D. Lazy Student time limit per test2 secondsmemory limit per test256 megabytes 问题描述 Student Vladislav came to his programming exam completely unprepared as usual. He got a question about some strange…

A. Hungry Student Problem time limit per test 1 second memory limit per test 256 megabytes input standard input output standard output Ivan's classes at the university have just finished, and now he wants to go to the local CFK cafe and eat some frie…