http://psyho.gg/overview-of-programming-contests/,Overview of Programming Contests,https://github.com/lnishan/awesome-competitive-programming#readme,Competitive Programming error: URLError(gaierror(8, 'nodename nor servname provided, or not known')) | reason: [Errno 8] nodename nor servname provided, or not known
https://code.google.com/codejam/,Google Code Jam,https://github.com/lnishan/awesome-competitive-programming#readme,Competitive Programming error: <HTTPError 404: 'Not Found'> | reason: Not Found
https://play.google.com/store/apps/details?id=com.chintanghate.CodeHorizon,Android App,https://github.com/lnishan/awesome-competitive-programming#readme,Competitive Programming error: <HTTPError 404: 'Not Found'> | reason: Not Found
http://psyho.gg/,Psyho's blog,https://github.com/lnishan/awesome-competitive-programming#readme,Competitive Programming error: URLError(gaierror(8, 'nodename nor servname provided, or not known')) | reason: [Errno 8] nodename nor servname provided, or not known
http://coj.uci.cu/index.xhtml,Caribbean Online Judge,https://github.com/lnishan/awesome-competitive-programming#readme,Competitive Programming error: <HTTPError 404: 'No Encontrado'> | reason: No Encontrado
https://jeffe.cs.illinois.edu/teaching/algorithms/,Algorithms,https://github.com/lnishan/awesome-competitive-programming#readme,Competitive Programming error: URLError(SSLCertVerificationError(1, '[SSL: CERTIFICATE_VERIFY_FAILED] certificate verify failed: certificate has expired (_ssl.c:1123)')) | reason: [SSL: CERTIFICATE_VERIFY_FAILED] certificate verify failed: certificate has expired (_ssl.c:1123)
https://www.russiancodecup.ru/en/,Russian Code Cup,https://github.com/lnishan/awesome-competitive-programming#readme,Competitive Programming error: URLError(ConnectionRefusedError(61, 'Connection refused')) | reason: [Errno 61] Connection refused
https://www.amazon.cn/%E7%AE%97%E6%B3%95%E7%AB%9E%E8%B5%9B%E5%85%A5%E9%97%A8%E7%BB%8F%E5%85%B8-%E8%AE%AD%E7%BB%83%E6%8C%87%E5%8D%97-%E5%88%98%E6%B1%9D%E4%BD%B3/dp/B009SJJGOU,算法竞赛入门经典——训练指南 (Chinese),https://github.com/lnishan/awesome-competitive-programming#readme,Competitive Programming error: URLError(ConnectionResetError(54, 'Connection reset by peer')) | reason: [Errno 54] Connection reset by peer
https://play.google.com/store/apps/details?id=com.limitskyapps.CodingCalendar,Coding Calendar (Android App),https://github.com/lnishan/awesome-competitive-programming#readme,Competitive Programming error: <HTTPError 404: 'Not Found'> | reason: Not Found
https://play.google.com/store/apps/details?id=com.corphots.coderscalendar,Android App,https://github.com/lnishan/awesome-competitive-programming#readme,Competitive Programming error: <HTTPError 404: 'Not Found'> | reason: Not Found
http://goo.gl/O1tr8v,算法艺术与信息学竞赛 (Chinese),https://github.com/lnishan/awesome-competitive-programming#readme,Competitive Programming error: URLError(ConnectionResetError(54, 'Connection reset by peer')) | reason: [Errno 54] Connection reset by peer
https://icpc.baylor.edu,ACM-ICPC,https://github.com/lnishan/awesome-competitive-programming#readme,Competitive Programming error: URLError(SSLCertVerificationError(1, '[SSL: CERTIFICATE_VERIFY_FAILED] certificate verify failed: unable to get local issuer certificate (_ssl.c:1123)')) | reason: [SSL: CERTIFICATE_VERIFY_FAILED] certificate verify failed: unable to get local issuer certificate (_ssl.c:1123)
https://addons.mozilla.org/en-US/firefox/addon/coder-calendar/,Firefox Add-on,https://github.com/lnishan/awesome-competitive-programming#readme,Competitive Programming error: <HTTPError 404: 'Not Found'> | reason: Not Found
http://problemclassifier.appspot.com/,Problem Classifier,https://github.com/lnishan/awesome-competitive-programming#readme,Competitive Programming error: <HTTPError 500: 'Internal Server Error'> | reason: Internal Server Error
https://www.mii.lt/olympiads_in_informatics/index.html,OLYMPIADS IN INFORMATICS,https://github.com/lnishan/awesome-competitive-programming#readme,Competitive Programming error: <HTTPError 404: 'Not Found'> | reason: Not Found
https://uva.onlinejudge.org/index.php?option=com_onlinejudge&Itemid=8,UVa Online Judge,https://github.com/lnishan/awesome-competitive-programming#readme,Competitive Programming error: URLError(SSLCertVerificationError(1, '[SSL: CERTIFICATE_VERIFY_FAILED] certificate verify failed: certificate has expired (_ssl.c:1123)')) | reason: [SSL: CERTIFICATE_VERIFY_FAILED] certificate verify failed: certificate has expired (_ssl.c:1123)
http://wjmzbmr.com/,WJMZBMR (Chinese),https://github.com/lnishan/awesome-competitive-programming#readme,Competitive Programming error: URLError(gaierror(8, 'nodename nor servname provided, or not known')) | reason: [Errno 8] nodename nor servname provided, or not known
https://www.bnuoj.com/v3/,BNU Online Judge,https://github.com/lnishan/awesome-competitive-programming#readme,Competitive Programming error: URLError(ConnectionRefusedError(61, 'Connection refused')) | reason: [Errno 61] Connection refused
http://acm.hdu.edu.cn/,HDU,https://github.com/lnishan/awesome-competitive-programming#readme,Competitive Programming error: <HTTPError 502: 'Bad Gateway'> | reason: Bad Gateway
https://uva.onlinejudge.org/,UVa,https://github.com/lnishan/awesome-competitive-programming#readme,Competitive Programming error: URLError(SSLCertVerificationError(1, '[SSL: CERTIFICATE_VERIFY_FAILED] certificate verify failed: certificate has expired (_ssl.c:1123)')) | reason: [SSL: CERTIFICATE_VERIFY_FAILED] certificate verify failed: certificate has expired (_ssl.c:1123)