专题16 KMP & 扩展KMP & Manacher

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专题16 KMP & 扩展KMP & Manacher

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#	Origin	Title
A	HDU 1711	Number Sequence
B	HDU 1686	Oulipo
C	HDU 2087	剪花布条
D	HDU 3746	Cyclic Nacklace
E	HDU 1358	Period
F	POJ 2406	Power Strings
G	POJ 2752	Seek the Name, Seek the Fame
H	POJ 3080	Blue Jeans
I	HDU 2594	Simpsons’ Hidden Talents
J	HDU 3336	Count the string
K	HDU 4300	Clairewd’s message
L	HDU 1238	Substrings
M	HDU 2328	Corporate Identity
N	HDU 3374	String Problem
O	HDU 2609	How many
P	FZU 1901	Period II
Q	POJ 3746	Teacher YYF
R	HDU 3613	Best Reward
S	POJ 3376	Finding Palindromes
T	POJ 3974	Palindrome
U	HDU 4513	吉哥系列故事――完美队形II
V	HDU 3294	Girls' research
W	HDU 3068	最长回文
X	HDU 4847	Wow! Such Doge!
Y	HDU 4763	Theme Section

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{"id":220679,"title":"专题16 KMP \u0026#38; 扩展KMP \u0026#38; Manacher","type":0,"openness":0,"authStatus":1,"begin":1522981800000,"end":1523436660000,"createTime":1522981242000,"started":true,"ended":true,"managerId":127706,"managerName":"goodstudy","fav":false,"description":{"format":"HTML","content":"[Cloned from \u003ca href\u003d\u0027https://vjudge.net/contest/70325\u0027 target\u003d\u0027_blank\u0027\u003e[kuangbin带你飞]专题十六 KMP \u0026#38; 扩展KMP \u0026#38; Manacher\u003c/a\u003e]"},"announcement":"","problems":[{"pid":18357,"title":"Number Sequence","oj":"HDU","probNum":"1711","num":"A","publicDescId":3157083040201769,"publicDescVersion":1714853827000,"properties":[{"title":"Time limit","content":"5000 ms","spoiler":false},{"title":"Mem limit","content":"32768 kB","spoiler":false},{"title":"OS","content":"Windows","spoiler":false},{"title":"Source","content":"\u003cdiv class\u003d\"panel_content\"\u003e \u003ca href\u003d\"https://acm.hdu.edu.cn/search.php?field\u003dproblem\u0026amp;key\u003dHDU+2007-Spring+Programming+Contest\u0026amp;source\u003d1\u0026amp;searchmode\u003dsource\"\u003e HDU 2007-Spring Programming Contest \u003c/a\u003e \u003c/div\u003e","spoiler":true}],"weight":1,"submitTips":"The contest is too ancient. New submissions will be considered out of the contest.","submitMethods":[true,true,true]},{"pid":25191,"title":"Oulipo","oj":"HDU","probNum":"1686","num":"B","publicDescId":3102925859274759,"publicDescVersion":1714792216000,"properties":[{"title":"Time limit","content":"1000 ms","spoiler":false},{"title":"Mem limit","content":"32768 kB","spoiler":false},{"title":"OS","content":"Windows","spoiler":false},{"title":"Source","content":"\u003cdiv class\u003d\"panel_content\"\u003e \u003ca href\u003d\"https://acm.hdu.edu.cn/search.php?field\u003dproblem\u0026amp;key\u003d%BB%AA%B6%AB%C7%F8%B4%F3%D1%A7%C9%FA%B3%CC%D0%F2%C9%E8%BC%C6%D1%FB%C7%EB%C8%FC_%C8%C8%C9%ED%C8%FC\u0026amp;source\u003d1\u0026amp;searchmode\u003dsource\"\u003e 华东区大学生程序设计邀请赛_热身赛 \u003c/a\u003e \u003c/div\u003e","spoiler":true}],"weight":1,"submitTips":"The contest is too ancient. New submissions will be considered out of the contest.","submitMethods":[true,true,true]},{"pid":23623,"title":"剪花布条","oj":"HDU","probNum":"2087","num":"C","publicDescId":3098971275362893,"publicDescVersion":1714791076000,"properties":[{"title":"Time limit","content":"1000 ms","spoiler":false},{"title":"Mem limit","content":"32768 kB","spoiler":false},{"title":"OS","content":"Windows","spoiler":false},{"title":"Source","content":"\u003cdiv class\u003d\"panel_content\"\u003e \u003ca href\u003d\"https://acm.hdu.edu.cn/search.php?field\u003dproblem\u0026amp;key\u003d%B6%AC%C1%B7%C8%FD%BE%C5%D6%AE%B6%FE\u0026amp;source\u003d1\u0026amp;searchmode\u003dsource\"\u003e 冬练三九之二 \u003c/a\u003e \u003c/div\u003e","spoiler":true},{"title":"Author","content":"\u003cdiv class\u003d\"panel_content\"\u003eqianneng\u003c/div\u003e","spoiler":true}],"weight":1,"submitTips":"The contest is too ancient. New submissions will be considered out of the contest.","submitMethods":[true,true,true]},{"pid":17942,"title":"Cyclic Nacklace","oj":"HDU","probNum":"3746","num":"D","publicDescId":3153738803714207,"publicDescVersion":1714794881000,"properties":[{"title":"Time limit","content":"1000 ms","spoiler":false},{"title":"Mem limit","content":"32768 kB","spoiler":false},{"title":"OS","content":"Windows","spoiler":false},{"title":"Source","content":"\u003cdiv class\u003d\"panel_content\"\u003e \u003ca href\u003d\"https://acm.hdu.edu.cn/search.php?field\u003dproblem\u0026amp;key\u003dHDU+3rd+%A1%B0Vegetable-Birds+Cup%A1%B1+Programming+Open+Contest\u0026amp;source\u003d1\u0026amp;searchmode\u003dsource\"\u003e HDU 3rd “Vegetable-Birds Cup” Programming Open Contest \u003c/a\u003e \u003c/div\u003e","spoiler":true},{"title":"Author","content":"\u003cdiv class\u003d\"panel_content\"\u003epossessor WC\u003c/div\u003e","spoiler":true}],"weight":1,"submitTips":"The contest is too ancient. New submissions will be considered out of the contest.","submitMethods":[true,true,true]},{"pid":27858,"title":"Period","oj":"HDU","probNum":"1358","num":"E","publicDescId":3129572096999548,"publicDescVersion":1714997032000,"properties":[{"title":"Time limit","content":"1000 ms","spoiler":false},{"title":"Mem limit","content":"32768 kB","spoiler":false},{"title":"OS","content":"Windows","spoiler":false}],"weight":1,"submitTips":"The contest is too ancient. New submissions will be considered out of the contest.","submitMethods":[true,true,true]},{"pid":10758,"title":"Power Strings","oj":"POJ","probNum":"2406","num":"F","publicDescId":3158006947887117,"publicDescVersion":1714858315000,"properties":[{"title":"Time limit","content":"3000 ms","spoiler":false},{"title":"Mem limit","content":"65536 kB","spoiler":false},{"title":"Source","content":"\u003cdiv class\u003d\"ptx\" lang\u003d\"en-US\"\u003e\u003ca href\u003d\"http://poj.org/searchproblem?field\u003dsource\u0026amp;key\u003dWaterloo+local+2002.07.01\"\u003eWaterloo local 2002.07.01\u003c/a\u003e\u003c/div\u003e","spoiler":true}],"weight":1,"submitTips":"The contest is too ancient. New submissions will be considered out of the contest.","submitMethods":[true,true,true]},{"pid":10055,"title":"Seek the Name, Seek the Fame","oj":"POJ","probNum":"2752","num":"G","publicDescId":3158983829196554,"publicDescVersion":1714720022000,"properties":[{"title":"Time limit","content":"2000 ms","spoiler":false},{"title":"Mem limit","content":"65536 kB","spoiler":false},{"title":"Source","content":"\u003cdiv class\u003d\"ptx\" lang\u003d\"en-US\"\u003e\u003ca href\u003d\"http://poj.org/searchproblem?field\u003dsource\u0026amp;key\u003dPOJ+Monthly--2006.01.22\"\u003ePOJ Monthly--2006.01.22\u003c/a\u003e,Zeyuan Zhu\u003c/div\u003e","spoiler":true}],"weight":1,"submitTips":"The contest is too ancient. New submissions will be considered out of the contest.","submitMethods":[true,true,true]},{"pid":10371,"title":"Blue Jeans","oj":"POJ","probNum":"3080","num":"H","publicDescId":3159511981211498,"publicDescVersion":1714812777000,"properties":[{"title":"Time limit","content":"1000 ms","spoiler":false},{"title":"Mem limit","content":"65536 kB","spoiler":false},{"title":"Source","content":"\u003cdiv class\u003d\"ptx\" lang\u003d\"en-US\"\u003e\u003ca href\u003d\"http://poj.org/searchproblem?field\u003dsource\u0026amp;key\u003dSouth+Central+USA+2006\"\u003eSouth Central USA 2006\u003c/a\u003e\u003c/div\u003e","spoiler":true}],"weight":1,"submitTips":"The contest is too ancient. New submissions will be considered out of the contest.","submitMethods":[true,true,true]},{"pid":32541,"title":"Simpsons’ Hidden Talents","oj":"HDU","probNum":"2594","num":"I","publicDescId":3216869980052567,"publicDescVersion":1714916518000,"properties":[{"title":"Time limit","content":"1000 ms","spoiler":false},{"title":"Mem limit","content":"32768 kB","spoiler":false},{"title":"OS","content":"Windows","spoiler":false},{"title":"Source","content":"\u003cdiv class\u003d\"panel_content\"\u003e \u003ca href\u003d\"https://acm.hdu.edu.cn/search.php?field\u003dproblem\u0026amp;key\u003dHDU+2010-05+Programming+Contest+\u0026amp;source\u003d1\u0026amp;searchmode\u003dsource\"\u003e HDU 2010-05 Programming Contest  \u003c/a\u003e \u003c/div\u003e","spoiler":true}],"weight":1,"submitTips":"The contest is too ancient. New submissions will be considered out of the contest.","submitMethods":[true,true,true]},{"pid":15623,"title":"Count the string","oj":"HDU","probNum":"3336","num":"J","publicDescId":3164458042806285,"publicDescVersion":1714293380000,"properties":[{"title":"Time limit","content":"1000 ms","spoiler":false},{"title":"Mem limit","content":"32768 kB","spoiler":false},{"title":"OS","content":"Windows","spoiler":false},{"title":"Source","content":"\u003cdiv class\u003d\"panel_content\"\u003e \u003ca href\u003d\"https://acm.hdu.edu.cn/search.php?field\u003dproblem\u0026amp;key\u003dHDOJ+Monthly+Contest+%A8C+2010.03.06\u0026amp;source\u003d1\u0026amp;searchmode\u003dsource\"\u003e HDOJ Monthly Contest – 2010.03.06 \u003c/a\u003e \u003c/div\u003e","spoiler":true},{"title":"Author","content":"\u003cdiv class\u003d\"panel_content\"\u003eforeverlin@HNU\u003c/div\u003e","spoiler":true}],"weight":1,"submitTips":"The contest is too ancient. New submissions will be considered out of the contest.","submitMethods":[true,true,true]},{"pid":30066,"title":"Clairewd’s message","oj":"HDU","probNum":"4300","num":"K","publicDescId":3119118808888349,"publicDescVersion":1714342850000,"properties":[{"title":"Time limit","content":"1000 ms","spoiler":false},{"title":"Mem limit","content":"32768 kB","spoiler":false},{"title":"OS","content":"Windows","spoiler":false},{"title":"Source","content":"\u003cdiv class\u003d\"panel_content\"\u003e \u003ca href\u003d\"https://acm.hdu.edu.cn/search.php?field\u003dproblem\u0026amp;key\u003d2012+Multi-University+Training+Contest+1\u0026amp;source\u003d1\u0026amp;searchmode\u003dsource\"\u003e 2012 Multi-University Training Contest 1 \u003c/a\u003e \u003c/div\u003e","spoiler":true},{"title":"Author","content":"\u003cdiv class\u003d\"panel_content\"\u003eBUPT\u003c/div\u003e","spoiler":true}],"weight":1,"submitTips":"The contest is too ancient. New submissions will be considered out of the contest.","submitMethods":[true,true,true]},{"pid":18448,"title":"Substrings","oj":"HDU","probNum":"1238","num":"L","publicDescId":3156742931908969,"publicDescVersion":1714871505000,"properties":[{"title":"Time limit","content":"1000 ms","spoiler":false},{"title":"Mem limit","content":"32768 kB","spoiler":false},{"title":"OS","content":"Windows","spoiler":false},{"title":"Author","content":"\u003cdiv class\u003d\"panel_content\"\u003eAsia 2002, Tehran (Iran), Preliminary\u003c/div\u003e","spoiler":true}],"weight":1,"submitTips":"The contest is too ancient. New submissions will be considered out of the contest.","submitMethods":[true,true,true]},{"pid":40990,"title":"Corporate Identity","oj":"HDU","probNum":"2328","num":"M","publicDescId":3224336063480016,"publicDescVersion":1714935730000,"properties":[{"title":"Time limit","content":"3000 ms","spoiler":false},{"title":"Mem limit","content":"32768 kB","spoiler":false},{"title":"OS","content":"Windows","spoiler":false},{"title":"Source","content":"\u003cdiv class\u003d\"panel_content\"\u003e \u003ca href\u003d\"https://acm.hdu.edu.cn/search.php?field\u003dproblem\u0026amp;key\u003dCTU+Open+Contest+2007\u0026amp;source\u003d1\u0026amp;searchmode\u003dsource\"\u003e CTU Open Contest 2007 \u003c/a\u003e \u003c/div\u003e","spoiler":true}],"weight":1,"submitTips":"The contest is too ancient. New submissions will be considered out of the contest.","submitMethods":[true,true,true]},{"pid":16282,"title":"String Problem","oj":"HDU","probNum":"3374","num":"N","publicDescId":3150140143237072,"publicDescVersion":1714281919000,"properties":[{"title":"Time limit","content":"1000 ms","spoiler":false},{"title":"Mem limit","content":"32768 kB","spoiler":false},{"title":"OS","content":"Windows","spoiler":false},{"title":"Source","content":"\u003cdiv class\u003d\"panel_content\"\u003e \u003ca href\u003d\"https://acm.hdu.edu.cn/search.php?field\u003dproblem\u0026amp;key\u003dHDOJ+Monthly+Contest+%A8C+2010.04.04\u0026amp;source\u003d1\u0026amp;searchmode\u003dsource\"\u003e HDOJ Monthly Contest – 2010.04.04 \u003c/a\u003e \u003c/div\u003e","spoiler":true},{"title":"Author","content":"\u003cdiv class\u003d\"panel_content\"\u003eWhereIsHeroFrom\u003c/div\u003e","spoiler":true}],"weight":1,"submitTips":"The contest is too ancient. New submissions will be considered out of the contest.","submitMethods":[true,true,true]},{"pid":38432,"title":"How many","oj":"HDU","probNum":"2609","num":"O","publicDescId":3236079716381431,"publicDescVersion":1714866150000,"properties":[{"title":"Time limit","content":"1000 ms","spoiler":false},{"title":"Mem limit","content":"32768 kB","spoiler":false},{"title":"OS","content":"Windows","spoiler":false},{"title":"Source","content":"\u003cdiv class\u003d\"panel_content\"\u003e \u003ca href\u003d\"https://acm.hdu.edu.cn/search.php?field\u003dproblem\u0026amp;key\u003d%B7%DC%B6%B7%B5%C4%C4%EA%B4%FA\u0026amp;source\u003d1\u0026amp;searchmode\u003dsource\"\u003e 奋斗的年代 \u003c/a\u003e \u003c/div\u003e","spoiler":true},{"title":"Author","content":"\u003cdiv class\u003d\"panel_content\"\u003eyifenfei\u003c/div\u003e","spoiler":true}],"weight":1,"submitTips":"The contest is too ancient. New submissions will be considered out of the contest.","submitMethods":[true,true,true]},{"pid":34537,"title":"Period II","oj":"FZU","probNum":"1901","num":"P","publicDescId":3206108428245633,"publicDescVersion":1620087681000,"properties":[{"title":"Time limit","content":"1000 ms","spoiler":false},{"title":"Mem limit","content":"32768 kB","spoiler":false},{"title":"Source","content":"FOJ有奖月赛-2010年05月 \n      ","spoiler":true}],"weight":1,"submitTips":"FZU is down.","submitMethods":[false,false,false]},{"pid":16140,"title":"Teacher YYF","oj":"POJ","probNum":"3746","num":"Q","publicDescId":3150395424166067,"publicDescVersion":1714103820000,"properties":[{"title":"Time limit","content":"1000 ms","spoiler":false},{"title":"Mem limit","content":"65536 kB","spoiler":false},{"title":"Source","content":"\u003cdiv class\u003d\"ptx\" lang\u003d\"en-US\"\u003e\u003ca href\u003d\"http://poj.org/searchproblem?field\u003dsource\u0026amp;key\u003dPOJ+Monthly+Contest+-+2009.08.23\"\u003ePOJ Monthly Contest - 2009.08.23\u003c/a\u003e, Jason\u003c/div\u003e","spoiler":true}],"weight":1,"submitTips":"The contest is too ancient. New submissions will be considered out of the contest.","submitMethods":[true,true,true]},{"pid":12543,"title":"Best Reward","oj":"HDU","probNum":"3613","num":"R","publicDescId":2864637247576766,"publicDescVersion":1507469425000,"properties":[{"title":"Time limit","content":"1000 ms","spoiler":false},{"title":"Mem limit","content":"65536 kB","spoiler":false},{"title":"OS","content":"Windows","spoiler":false},{"title":"Source","content":"\u003cdiv class\u003d\"panel_content\"\u003e \u003ca href\u003d\"https://acm.hdu.edu.cn/search.php?field\u003dproblem\u0026amp;key\u003d2010+ACM-ICPC+Multi-University+Training+Contest%A3%A818%A3%A9%A1%AA%A1%AAHost+by+TJU+\u0026amp;source\u003d1\u0026amp;searchmode\u003dsource\"\u003e 2010 ACM-ICPC Multi-University Training Contest（18）——Host by TJU  \u003c/a\u003e \u003c/div\u003e","spoiler":true}],"weight":1,"submitTips":"The contest is too ancient. New submissions will be considered out of the contest.","submitMethods":[true,true,true]},{"pid":18313,"title":"Finding Palindromes","oj":"POJ","probNum":"3376","num":"S","publicDescId":3154198404891155,"publicDescVersion":1714477454000,"properties":[{"title":"Time limit","content":"10000 ms","spoiler":false},{"title":"Case time limit","content":"2000 ms","spoiler":false},{"title":"Mem limit","content":"262144 kB","spoiler":false},{"title":"Source","content":"\u003cdiv class\u003d\"ptx\" lang\u003d\"en-US\"\u003e\u003ca href\u003d\"http://poj.org/searchproblem?field\u003dsource\u0026amp;key\u003dPOJ+Monthly--2007.09.09\"\u003ePOJ Monthly--2007.09.09\u003c/a\u003e, Zhou Gelin, modified from POI06\u003c/div\u003e","spoiler":true}],"weight":1,"submitTips":"The contest is too ancient. New submissions will be considered out of the contest.","submitMethods":[true,true,true]},{"pid":21720,"title":"Palindrome","oj":"POJ","probNum":"3974","num":"T","publicDescId":3113763879308224,"publicDescVersion":1714645276000,"properties":[{"title":"Time limit","content":"15000 ms","spoiler":false},{"title":"Mem limit","content":"65536 kB","spoiler":false},{"title":"Source","content":"\u003cdiv class\u003d\"ptx\" lang\u003d\"en-US\"\u003e\u003ca href\u003d\"http://poj.org/searchproblem?field\u003dsource\u0026amp;key\u003dSeventh+ACM+Egyptian+National+Programming+Contest\"\u003eSeventh ACM Egyptian National Programming Contest\u003c/a\u003e\u003c/div\u003e","spoiler":true}],"weight":1,"submitTips":"The contest is too ancient. New submissions will be considered out of the contest.","submitMethods":[true,true,true]},{"pid":37611,"title":"吉哥系列故事――完美队形II","oj":"HDU","probNum":"4513","num":"U","publicDescId":3233963094220865,"publicDescVersion":1714342945000,"properties":[{"title":"Time limit","content":"1000 ms","spoiler":false},{"title":"Mem limit","content":"32768 kB","spoiler":false},{"title":"OS","content":"Windows","spoiler":false},{"title":"Source","content":"\u003cdiv class\u003d\"panel_content\"\u003e \u003ca href\u003d\"https://acm.hdu.edu.cn/search.php?field\u003dproblem\u0026amp;key\u003d2013%CC%DA%D1%B6%B1%E0%B3%CC%C2%ED%C0%AD%CB%C9%B3%F5%C8%FC%B5%DA%B6%FE%B3%A1%A3%A83%D4%C222%C8%D5%A3%A9\u0026amp;source\u003d1\u0026amp;searchmode\u003dsource\"\u003e 2013腾讯编程马拉松初赛第二场（3月22日） \u003c/a\u003e \u003c/div\u003e","spoiler":true}],"weight":1,"submitTips":"The contest is too ancient. New submissions will be considered out of the contest.","submitMethods":[true,true,true]},{"pid":21041,"title":"Girls\u0027 research","oj":"HDU","probNum":"3294","num":"V","publicDescId":3111240562018628,"publicDescVersion":1714317791000,"properties":[{"title":"Time limit","content":"1000 ms","spoiler":false},{"title":"Mem limit","content":"32768 kB","spoiler":false},{"title":"OS","content":"Windows","spoiler":false},{"title":"Source","content":"\u003cdiv class\u003d\"panel_content\"\u003e \u003ca href\u003d\"https://acm.hdu.edu.cn/search.php?field\u003dproblem\u0026amp;key\u003d2010+%A1%B0HDU-Sailormoon%A1%B1+Programming+Contest\u0026amp;source\u003d1\u0026amp;searchmode\u003dsource\"\u003e 2010 “HDU-Sailormoon” Programming Contest \u003c/a\u003e \u003c/div\u003e","spoiler":true},{"title":"Author","content":"\u003cdiv class\u003d\"panel_content\"\u003ewangjing1111\u003c/div\u003e","spoiler":true}],"weight":1,"submitTips":"The contest is too ancient. New submissions will be considered out of the contest.","submitMethods":[true,true,true]},{"pid":19933,"title":"最长回文","oj":"HDU","probNum":"3068","num":"W","publicDescId":3108844980069347,"publicDescVersion":1714951075000,"properties":[{"title":"Time limit","content":"2000 ms","spoiler":false},{"title":"Mem limit","content":"32768 kB","spoiler":false},{"title":"OS","content":"Windows","spoiler":false},{"title":"Source","content":"\u003cdiv class\u003d\"panel_content\"\u003e \u003ca href\u003d\"https://acm.hdu.edu.cn/search.php?field\u003dproblem\u0026amp;key\u003d2009+Multi-University+Training+Contest+16+-+Host+by+NIT\u0026amp;source\u003d1\u0026amp;searchmode\u003dsource\"\u003e 2009 Multi-University Training Contest 16 - Host by NIT \u003c/a\u003e \u003c/div\u003e","spoiler":true}],"weight":1,"submitTips":"The contest is too ancient. New submissions will be considered out of the contest.","submitMethods":[true,true,true]},{"pid":51683,"title":"Wow! Such Doge!","oj":"HDU","probNum":"4847","num":"X","publicDescId":3192244168722523,"publicDescVersion":1714940488000,"properties":[{"title":"Time limit","content":"1000 ms","spoiler":false},{"title":"Mem limit","content":"32768 kB","spoiler":false},{"title":"OS","content":"Windows","spoiler":false},{"title":"Source","content":"\u003cdiv class\u003d\"panel_content\"\u003e \u003ca href\u003d\"https://acm.hdu.edu.cn/search.php?field\u003dproblem\u0026amp;key\u003d2014%CE%F7%B0%B2%C8%AB%B9%FA%D1%FB%C7%EB%C8%FC\u0026amp;source\u003d1\u0026amp;searchmode\u003dsource\"\u003e 2014西安全国邀请赛 \u003c/a\u003e \u003c/div\u003e","spoiler":true}],"weight":1,"submitTips":"The contest is too ancient. New submissions will be considered out of the contest.","submitMethods":[true,true,true]},{"pid":46826,"title":"Theme Section","oj":"HDU","probNum":"4763","num":"Y","publicDescId":3173203928556057,"publicDescVersion":1714963303000,"properties":[{"title":"Time limit","content":"1000 ms","spoiler":false},{"title":"Mem limit","content":"32768 kB","spoiler":false},{"title":"OS","content":"Windows","spoiler":false},{"title":"Source","content":"\u003cdiv class\u003d\"panel_content\"\u003e \u003ca href\u003d\"https://acm.hdu.edu.cn/search.php?field\u003dproblem\u0026amp;key\u003d2013+ACM%2FICPC+Asia+Regional+Changchun+Online\u0026amp;source\u003d1\u0026amp;searchmode\u003dsource\"\u003e 2013 ACM/ICPC Asia Regional Changchun Online \u003c/a\u003e \u003c/div\u003e","spoiler":true}],"weight":1,"submitTips":"The contest is too ancient. New submissions will be considered out of the contest.","submitMethods":[true,true,true]}],"problemsHash":"a1abaa85b9c313aa4ecca9765080f42f","privatePeerContestIds":[],"enableTimeMachine":true,"sumTime":true,"penalty":1200,"partialScore":false,"customizedWeight":false,"showPeers":true,"clonedFromId":0}