字符串 - 题库

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共 245 道题

ID	题目显示标签隐藏标签	AC / 尝试	难度
2635	CF5C Longest Regular Bracket Sequence GESP七级 CodeForces CF-1900 构造数据结构动态规划贪心排序字符串	1 / 1	9
3737	CF41A Translation GESP一级 CodeForces CF-800 模拟字符串	1 / 1	3
2003	CF43A Football GESP二级 CodeForces CF-1000 字符串	1 / 1	5
4806	CF43B Letter GESP二级 CodeForces CF-1100 模拟字符串	1 / 1	5
2020	CF58A Chat room GESP二级 CodeForces CF-1000 贪心字符串	1 / 1	5
3807	CF59A Word GESP一级 CodeForces CF-800 模拟字符串	1 / 1	3
4164	CF63A Sinking Ship GESP一级 CodeForces CF-900 模拟排序字符串	1 / 1	4
3809	CF71A Way Too Long Words GESP一级 CodeForces CF-800 字符串	1 / 1	3
3849	CF78A Haiku GESP一级 CodeForces CF-800 模拟字符串	1 / 1	3
4202	CF94A Restoring Password GESP一级 CodeForces CF-900 模拟字符串	1 / 1	4
4205	CF96A Football GESP一级 CodeForces CF-900 模拟字符串	1 / 1	4
3893	CF99A Help Far Away Kingdom GESP一级 CodeForces CF-800 字符串	1 / 1	3
1717	CF108A Palindromic Times GESP一级 CodeForces CF-1000 模拟字符串	1 / 1	5
4260	CF110B Lucky String GESP二级 CodeForces CF-1100 构造字符串	1 / 1	5
1682	CF112A Petya and Strings GESP一级 CodeForces CF-800 模拟字符串	1 / 1	3
1731	CF118A String Task GESP一级 CodeForces CF-1000 模拟字符串	1 / 1	5
1770	CF131A cAPS lOCK GESP一级 CodeForces CF-1000 模拟字符串	1 / 1	5
2871	CF141A Amusing Joke GESP一级 CodeForces CF-800 模拟排序字符串	1 / 1	3
4673	CF186A Comparing Strings GESP二级 CodeForces CF-1100 模拟字符串	1 / 1	5
4703	CF196A Lexicographically Maximum Subsequence GESP三级 CodeForces CF-1100 贪心字符串	1 / 1	5
3533	CF202A LLPS GESP五级 CodeForces CF-800 二分查找位运算枚举贪心模拟字符串	1 / 1	3
4092	CF208A Dubstep GESP一级 CodeForces CF-900 字符串	1 / 1	4
1963	CF219A k-String GESP一级 CodeForces CF-1000 SPJ 模拟字符串	1 / 1	5
3706	CF236A Boy or Girl GESP一级 CodeForces CF-800 枚举模拟字符串	1 / 1	3
4775	CF245B Internet Address GESP二级 CodeForces CF-1100 SPJ 模拟字符串	1 / 1	5
1980	CF259A Little Elephant and Chess GESP一级 CodeForces CF-1000 枚举字符串	1 / 1	5
3717	CF281A Word Capitalization GESP一级 CodeForces CF-800 模拟字符串	1 / 1	3
4785	CF312A Whose sentence is it? GESP二级 CodeForces CF-1100 模拟字符串	1 / 1	5
3725	CF339A Helpful Maths GESP一级 CodeForces CF-800 贪心模拟排序字符串	1 / 1	3
2011	CF452A Eevee GESP一级 CodeForces CF-1000 枚举模拟字符串	1 / 1	5
2634	CF499B Lecture GESP一级 CodeForces CF-1000 模拟字符串	1 / 1	5
4818	CF501B Misha and Changing Handles GESP三级 CodeForces CF-1100 SPJ 数据结构并查集字符串	1 / 1	5
4817	CF505A Mr. Kitayuta's Gift GESP二级 CodeForces CF-1100 SPJ 枚举模拟字符串	1 / 1	5
3762	CF520A Pangram GESP一级 CodeForces CF-800 模拟字符串	1 / 1	3
4820	CF525A Vitaliy and Pie GESP三级 CodeForces CF-1100 贪心 Hashing 字符串	1 / 1	5
4826	CF544A Set of Strings GESP二级 CodeForces CF-1100 SPJ 模拟字符串	1 / 1	5
4827	CF548A Mike and Fax GESP二级 CodeForces CF-1100 枚举模拟字符串	1 / 1	5
4150	CF549A Face Detection GESP一级 CodeForces CF-900 模拟字符串	1 / 1	4
4149	CF554A Kyoya and Photobooks GESP一级 CodeForces CF-900 枚举数学字符串	1 / 1	4
4160	CF616A Comparing Two Long Integers GESP一级 CodeForces CF-900 模拟字符串	1 / 1	4
2037	CF672B Different is Good GESP一级 CodeForces CF-1000 构造模拟字符串	1 / 1	5
4859	CF712B Memory and Trident GESP二级 CodeForces CF-1100 模拟字符串	1 / 1	5
4862	CF721B Passwords GESP二级 CodeForces CF-1100 模拟数学排序字符串	1 / 1	5
4173	CF729A Interview with Oleg GESP一级 CodeForces CF-900 模拟字符串	1 / 1	4
3813	CF731A Night at the Museum GESP一级 CodeForces CF-800 模拟字符串	1 / 1	3
3814	CF734A Anton and Danik GESP一级 CodeForces CF-800 模拟字符串	1 / 1	3
3817	CF735A Ostap and Grasshopper GESP一级 CodeForces CF-800 模拟字符串	1 / 1	3
4171	CF745A Hongcow Learns the Cyclic Shift GESP一级 CodeForces CF-900 模拟字符串	1 / 1	4
4172	CF746B Decoding GESP一级 CodeForces CF-900 模拟字符串	1 / 1	4
4174	CF747B Mammoth's Genome Decoding GESP一级 CodeForces CF-900 SPJ 模拟字符串	1 / 1	4
4867	CF755B PolandBall and Game GESP五级 CodeForces CF-1100 二分查找数据结构博弈论贪心排序字符串	1 / 1	5
2067	CF766A Mahmoud and Longest Uncommon Subsequence GESP一级 CodeForces CF-1000 构造字符串	1 / 1	5
4178	CF776A A Serial Killer GESP一级 CodeForces CF-900 SPJ 枚举模拟字符串	1 / 1	4
3831	CF785A Anton and Polyhedrons GESP一级 CodeForces CF-800 模拟字符串	1 / 1	3
2644	CF797C Minimal string GESP六级 CodeForces CF-1700 数据结构贪心字符串	1 / 1	9
2070	CF798A Mike and palindrome GESP一级 CodeForces CF-1000 枚举构造字符串	1 / 1	5
4180	CF801B Valued Keys GESP一级 CodeForces CF-900 SPJ 构造贪心字符串	1 / 1	4
3835	CF802G1 Fake News (easy) GESP一级 CodeForces CF-800 模拟字符串	1 / 1	3
2077	CF822B Crossword solving GESP一级 CodeForces CF-1000 SPJ 枚举模拟字符串	1 / 1	5
3841	CF831B Keyboard Layouts GESP一级 CodeForces CF-800 模拟字符串	1 / 1	3
2081	CF844A Diversity GESP一级 CodeForces CF-1000 贪心模拟字符串	1 / 1	5
3848	CF855A Tom Riddle's Diary GESP一级 CodeForces CF-800 枚举模拟字符串	1 / 1	3
2083	CF864B Polycarp and Letters GESP一级 CodeForces CF-1000 枚举模拟字符串	1 / 1	5
4190	CF868A Bark to Unlock GESP一级 CodeForces CF-900 枚举模拟字符串	1 / 1	4
4885	CF877A Alex and broken contest GESP二级 CodeForces CF-1100 模拟字符串	1 / 1	5
4201	CF918B Radio Station GESP一级 CodeForces CF-900 模拟字符串	1 / 1	4
4207	CF975A Aramic script GESP一级 CodeForces CF-900 模拟字符串	1 / 1	4
4210	CF977B Two-gram GESP一级 CodeForces CF-900 SPJ 模拟字符串	1 / 1	4
3883	CF978B File Name GESP一级 CodeForces CF-800 贪心字符串	1 / 1	3
4208	CF981A Antipalindrome GESP一级 CodeForces CF-900 枚举模拟字符串	1 / 1	4
4212	CF989A A Blend of Springtime GESP一级 CodeForces CF-900 模拟字符串	1 / 1	4
3895	CF1005B Delete from the Left GESP一级 CodeForces CF-900 枚举模拟字符串	1 / 1	4
3896	CF1008A Romaji GESP一级 CodeForces CF-900 模拟字符串	1 / 1	4
1708	CF1027A Palindromic Twist GESP一级 CodeForces CF-1000 模拟字符串	1 / 1	5
1665	CF1038A Equality GESP一级 CodeForces CF-800 模拟字符串	1 / 1	3
1711	CF1073A Diverse Substring GESP一级 CodeForces CF-1000 SPJ 模拟字符串	1 / 1	5
1672	CF1085A Right-Left Cipher GESP一级 CodeForces CF-800 模拟字符串	1 / 1	3
3906	CF1093B Letters Rearranging GESP一级 CodeForces CF-900 SPJ 构造贪心排序字符串	1 / 1	4
4256	CF1105B Zuhair and Strings GESP二级 CodeForces CF-1100 枚举模拟字符串	1 / 1	5
3909	CF1107A Digits Sequence Dividing GESP一级 CodeForces CF-900 SPJ 贪心字符串	1 / 1	4
1797	CF1111A Superhero Transformation GESP一级 CodeForces CF-1000 模拟字符串	1 / 1	5
1684	CF1139A Even Substrings GESP一级 CodeForces CF-800 模拟字符串	1 / 1	3
1683	CF1144A Diverse Strings GESP一级 CodeForces CF-800 模拟字符串	1 / 1	3
1692	CF1146A Love "A" GESP一级 CodeForces CF-800 模拟字符串	1 / 1	3
4266	CF1146B Hate "A" GESP二级 CodeForces CF-1100 模拟字符串	1 / 1	5
1730	CF1151A Maxim and Biology GESP一级 CodeForces CF-1000 枚举字符串	1 / 1	5
1728	CF1155A Reverse a Substring GESP一级 CodeForces CF-1000 SPJ 模拟排序字符串	1 / 1	5
1691	CF1167A Telephone Number GESP一级 CodeForces CF-800 枚举贪心字符串	1 / 1	3
2779	CF1189A Keanu Reeves GESP一级 CodeForces CF-800 SPJ 字符串	1 / 1	3
3929	CF1201A Important Exam GESP一级 CodeForces CF-900 模拟字符串	1 / 1	4
2800	CF1216A Prefixes GESP一级 CodeForces CF-800 SPJ 字符串	1 / 1	3
2790	CF1220A Cards GESP一级 CodeForces CF-800 模拟排序字符串	1 / 1	3
1751	CF1223B Strings Equalization GESP二级 CodeForces CF-1000 字符串	1 / 1	5
1754	CF1243B1 Character Swap (Easy Version) GESP二级 CodeForces CF-1000 字符串	1 / 1	5
2629	CF1251A Broken Keyboard GESP一级 CodeForces CF-1000 枚举字符串双指针扫描	2 / 3	5
1771	CF1278A Shuffle Hashing GESP一级 CodeForces CF-1000 枚举模拟字符串	1 / 1	5
2833	CF1284A New Year and Naming GESP一级 CodeForces CF-800 模拟字符串	1 / 1	3
3946	CF1291A Even But Not Even GESP一级 CodeForces CF-900 SPJ 贪心数学字符串	1 / 1	4
2813	CF1301A Three Strings GESP一级 CodeForces CF-800 模拟字符串	1 / 1	3
2814	CF1303A Erasing Zeroes GESP一级 CodeForces CF-800 模拟字符串	1 / 1	3

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