Wanna go back home

本文探讨了一个关于在无限二维平面上制定旅行计划的问题。Snuke计划进行为期N天的旅行,每天根据字符串S中相应的字母决定朝北、西、南还是东方向行进。文章讨论了如何设置每天的行进距离,以确保Snuke可以在第N天结束时返回家中。

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题目描述

Snuke lives on an infinite two-dimensional plane. He is going on an N-day trip. At the beginning of Day 1, he is at home. His plan is described in a string S of length N. On Day i(1≤i≤N), he will travel a positive distance in the following direction:

North if the i-th letter of S is N
West if the i-th letter of S is W
South if the i-th letter of S is S
East if the i-th letter of S is E
He has not decided each day's travel distance. Determine whether it is possible to set each day's travel distance so that he will be back at home at the end of Day N.

Constraints
1≤|S|≤1000
S consists of the letters N, W, S, E.

输入

The input is given from Standard Input in the following format:
S

输出

Print Yes if it is possible to set each day's travel distance so that he will be back at home at the end of Day N. Otherwise, print No.

样例输入

SENW

样例输出

Yes

提示

If Snuke travels a distance of 1 on each day, he will be back at home at the end of day 4.

这题队友WA了3发。。。

主要是那句 He has not decided each day's travel distance.

这个其实东南西北只要都走一遍就好了

转载于:https://www.cnblogs.com/smallocean/p/8799300.html

import re import subprocess import requests import json from pprint import pprint url = "https://www.bilibili.com/video/BV1fi4y1K7Na/?spm_id_from=333.1007.top_right_bar_window_default_collection.content.click&vd_source=4545a0e83c576b93b1abd0ca4e16ab4d" headers = { "referer": "https://www.bilibili.com/", "user-agent": "Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/99.0.4844.51 Safari/537.36", "cookie":"i-wanna-go-back=-1; _uuid=C106610D104-6D27-6584-66E1-FCDE2859156A75277infoc; FEED_LIVE_VERSION=V8; home_feed_column=5; buvid3=D2AE610A6-6EE7-B48E-10C51-9E8269B10C88776898infoc; header_theme_version=CLOSE; DedeUserID=1852701166; DedeUserID__ckMd5=ac9474243bdd3627; nostalgia_conf=-1; CURRENT_PID=e16a0380-e1cd-11ed-a872-2f97008834b2; rpdid=|(k|k~u|)RY)0J'uY)kkl|m)m; b_ut=5; browser_resolution=1482-792; CURRENT_BLACKGAP=0; buvid_fp_plain=undefined; CURRENT_FNVAL=4048; b_nut=1683881044; hit-new-style-dyn=1; hit-dyn-v2=1; SESSDATA=3e3851ea%2C1704423625%2C1959b%2A72SteLEoaNhz8Q6ifKiYFGRpSBjpMp2TG-QWAao2iv2yR5ci81QOokmXevCx102rLpwUc9qgAAQgA; bili_jct=2ea1af9f8ae6f19867c8cd3dc1bfd047; fingerprint=dd5c1878758a4b317420b66dad49b677; b_lsid=97F1E5C5_1894440C9F1; buvid4=9D5A25A5-A648-0805-4C59-8178C4E4362B31067-023042319-0THAXXn9jKfRyf3rDh/fQA%3D%3D; buvid_fp=dd5c1878758a4b317420b66dad49b677; sid=7i4lnopc; bp_video_offset_1852701166=817021346575810700; PVID=1" } response = requests.get(url, headers=headers) name = re.findall('"title":"(.*?)"',response.text)[0].replace(' ','') html_data = re.findall('<script>window.__playinfo__=(.*?)</script>',response.text)[0] json_data = json.loads(html_data) #print(name) # print(html_data) # print(json_data) # pprint(json_data) audio_url = json_data['data']['dash']['audio'][0]['baseUrl'] video_url = json_data['data']['dash']['video'][0]['baseUrl'] # print(audio_url) # print(video_url) audio_content = requests.get(url=audio_url,headers=headers).content video_content = requests.get(url=video_url,headers=headers).content with open("D:\\study\\B站\\素材\\" + name + ".mp3", mode="wb") as audio: audio.write(audio_content) with open("D:\\study\\B站\\素材\\" + name + ".mp4", mode="wb") as video: video.write(video_content) cmd = f'ffmpeg -i D:\\study\\B站\\素材\\{name}.mp4 -i D:\\study\\B站\\素材\\{name}.mp3 -c:a aac -strict experimental D:\\study\\B站\\视频1080P\\{name}output.mp4' subprocess.run(cmd)
07-13
内容概要:该论文聚焦于T2WI核磁共振图像超分辨率问题,提出了一种利用T1WI模态作为辅助信息的跨模态解决方案。其主要贡献包括:提出基于高频信息约束的网络框架,通过主干特征提取分支和高频结构先验建模分支结合Transformer模块和注意力机制有效重建高频细节;设计渐进式特征匹配融合框架,采用多阶段相似特征匹配算法提高匹配鲁棒性;引入模型量化技术降低推理资源需求。实验结果表明,该方法不仅提高了超分辨率性能,还保持了图像质量。 适合人群:从事医学图像处理、计算机视觉领域的研究人员和工程师,尤其是对核磁共振图像超分辨率感兴趣的学者和技术开发者。 使用场景及目标:①适用于需要提升T2WI核磁共振图像分辨率的应用场景;②目标是通过跨模态信息融合提高图像质量,解决传统单模态方法难以克服的高频细节丢失问题;③为临床诊断提供更高质量的影像资料,帮助医生更准确地识别病灶。 其他说明:论文不仅提供了详细的网络架构设计与实现代码,还深入探讨了跨模态噪声的本质、高频信息约束的实现方式以及渐进式特征匹配的具体过程。此外,作者还对模型进行了量化处理,使得该方法可以在资源受限环境下高效运行。阅读时应重点关注论文中提到的技术创新点及其背后的原理,理解如何通过跨模态信息融合提升图像重建效果。
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