ID	题目显示标签隐藏标签	AC / 尝试	难度
3304	P1243B2 Character Swap (Hard Version) strings *1600	0 / 0	普及
3263	P1251A Broken Keyboard brute force strings two pointers *1000	0 / 0	普及-
3262	P1251B Binary Palindromes greedy strings *1400	0 / 0	普及-
3253	P1252D Find String in a Grid data structures dp strings trees *3000	0 / 0	CTSC
3224	P1256F Equalizing Two Strings constructive algorithms sortings strings *2000	0 / 0	提高
3221	P1257C Dominated Subarray greedy implementation sortings strings two pointers *1200	0 / 0	普及-
3174	P1267L Lexicography constructive algorithms strings *1800	0 / 0	普及
3173	P1268A Long Beautiful Integer constructive algorithms greedy implementation strings *1700	0 / 0	普及
3161	P1270F Awesome Substrings math strings *2600	0 / 0	CTSC
3146	P1272F Two Bracket Sequences dp strings two pointers *2200	0 / 0	省选
3136	P1278A Shuffle Hashing brute force implementation strings *1000	0 / 0	普及-
3112	P1282D Enchanted Artifact constructive algorithms interactive strings *2300	0 / 0	省选
3104	P1284A New Year and Naming implementation strings *800	0 / 0	普及-
3094	P1285D Dr bitmasks brute force dfs and similar divide and conquer dp greedy strings trees *1900	0 / 0	普及
3086	P1286E Fedya the Potter Strikes Back data structures strings *3200	0 / 0	CTSC
3075	P1290B Irreducible Anagrams binary search constructive algorithms data structures strings two pointers *1800	0 / 0	普及
3070	P1291A Even But Not Even greedy math strings *900	0 / 0	普及-
3052	P1295B Infinite Prefixes math strings *1700	0 / 0	普及
3051	P1295C Obtain The String dp greedy strings *1600	0 / 0	普及
3033	P1297H Paint the String *special problem dp strings	0 / 0	暂无评定
3024	P1301A Three Strings implementation strings *800	0 / 0	普及-
3022	P1301C Ayoub's function binary search combinatorics greedy math strings *1700	0 / 0	普及
3008	P1303A Erasing Zeroes implementation strings *800	0 / 0	普及-
3004	P1303E Erase Subsequences dp strings *2200	0 / 0	省选
3000	P1304B Longest Palindrome brute force constructive algorithms greedy implementation strings *1100	0 / 0	普及-
2993	P1305B Kuroni and Simple Strings constructive algorithms greedy strings two pointers *1200	0 / 0	普及-
2984	P1307C Cow and Message brute force dp math strings *1500	0 / 0	普及
2977	P1310C Au Pont Rouge binary search dp strings *2800	0 / 0	CTSC
2955	P1313E Concatenation with intersection data structures hashing strings two pointers *2700	0 / 0	CTSC
2953	P1315B Homecoming binary search dp greedy strings *1300	0 / 0	普及-
2950	P1316B String Modification brute force constructive algorithms implementation sortings strings *1400	0 / 0	普及-
2942	P1320D Reachable Strings data structures hashing strings *2500	0 / 0	NOI
2938	P1321C Remove Adjacent brute force constructive algorithms greedy strings *1600	0 / 0	普及
2928	P1324B Yet Another Palindrome Problem brute force strings *1100	0 / 0	普及-
2914	P1326D1 Prefix-Suffix Palindrome (Easy version) hashing string suffix structures strings *1500	0 / 0	普及
2913	P1326D2 Prefix-Suffix Palindrome (Hard version) binary search greedy hashing string suffix structures strings *1800	0 / 0	普及
2883	P1331F Elementary! *special problem brute force dp strings	0 / 0	暂无评定
2878	P1332C K-Complete Word dfs and similar dsu greedy implementation strings *1500	0 / 0	普及
2851	P1336C Kaavi and Magic Spell dp strings *2200	0 / 0	省选
2828	P1342B Binary Period constructive algorithms strings *1100	0 / 0	普及-
2798	P1348C Phoenix and Distribution constructive algorithms greedy sortings strings *1600	0 / 0	普及
2710	P1360F Spy-string bitmasks brute force constructive algorithms dp hashing strings *1700	0 / 0	普及
2697	P1363B Subsequence Hate implementation strings *1400	0 / 0	普及-
2686	P1363F Rotating Substrings dp strings *2600	0 / 0	CTSC
2667	P1366G Construct the String data structures dp strings *2700	0 / 0	CTSC
2666	P1367A Short Substrings implementation strings *800	0 / 0	普及-
2658	P1368B Codeforces Subsequences brute force constructive algorithms greedy math strings *1500	0 / 0	普及
2649	P1369B AccurateLee greedy implementation strings *1200	0 / 0	普及-
2615	P1374C Move Brackets greedy strings *1000	0 / 0	普及-
2601	P1379A Acacius and String brute force implementation strings *1500	0 / 0	普及
2587	P1381A1 Prefix Flip (Easy Version) constructive algorithms data structures strings *1300	0 / 0	普及-
2586	P1381A2 Prefix Flip (Hard Version) constructive algorithms data structures implementation strings two pointers *1700	0 / 0	普及
2579	P1383A String Transformation 1 dsu graphs greedy sortings strings trees two pointers *1700	0 / 0	普及
2573	P1384A Common Prefixes constructive algorithms greedy strings *1200	0 / 0	普及-
2526	P1393E1 Twilight and Ancient Scroll (easier version) dp hashing implementation string suffix structures strings *2800	0 / 0	CTSC
2525	P1393E2 Twilight and Ancient Scroll (harder version) dp hashing implementation string suffix structures strings two pointers *3200	0 / 0	CTSC
2520	P1394E Boboniu and Banknote Collection strings *3500	0 / 0	CTSC
2511	P1397A Juggling Letters greedy strings *800	0 / 0	普及-
2495	P1400A String Similarity constructive algorithms strings *800	0 / 0	普及-
2490	P1400F x-prime Substrings brute force dfs and similar dp string suffix structures strings *2800	0 / 0	CTSC
2476	P1404A Balanced Bitstring implementation strings *1500	0 / 0	普及
2445	P1409F Subsequences of Length Two dp strings *2100	0 / 0	提高
2441	P1411D Grime Zoo brute force greedy implementation strings *2100	0 / 0	提高
2440	P1411E Poman Numbers bitmasks greedy math strings *2300	0 / 0	省选
2423	P1416C XOR Inverse bitmasks data structures divide and conquer dp greedy math sortings strings trees *2000	0 / 0	提高
2395	P1421C Palindromifier constructive algorithms strings *1400	0 / 0	普及-
2388	P1422E Minlexes dp greedy implementation strings *2700	0 / 0	CTSC
2357	P1426F Number of Subsequences combinatorics dp strings *2000	0 / 0	提高
2346	P1428C ABBB brute force data structures greedy strings *1100	0 / 0	普及-
2335	P1430E String Reversal data structures greedy strings *1900	0 / 0	普及
2324	P1431I Cyclic Shifts special problem strings 2900	0 / 0	CTSC
2302	P1437G Death DBMS data structures string suffix structures strings trees *2600	0 / 0	CTSC
2269	P1446B Catching Cheaters dp strings *1800	0 / 0	普及
2250	P1451B Non-Substring Subsequence dp greedy implementation strings *900	0 / 0	普及-
2249	P1451C String Equality dp greedy hashing implementation strings *1400	0 / 0	普及-
2202	P1462B Last Year's Substring dp implementation strings *800	0 / 0	普及-
2187	P1466C Canine poetry dp greedy strings *1300	0 / 0	普及-
2183	P1466G Song of the Sirens combinatorics divide and conquer hashing math string suffix structures strings *2600	0 / 0	CTSC
2157	P1469E A Bit Similar bitmasks brute force hashing string suffix structures strings two pointers *2400	0 / 0	NOI
2139	P1473B String LCM brute force math number theory strings *1000	0 / 0	普及-
2137	P1473D Program data structures dp implementation strings *1700	0 / 0	普及
2116	P1476E Pattern Matching bitmasks data structures dfs and similar graphs hashing sortings strings *2300	0 / 0	省选
2098	P1480A Yet Another String Game games greedy strings *800	0 / 0	普及-
2096	P1481A Space Navigation greedy strings *800	0 / 0	普及-
2029	P1493C K-beautiful Strings binary search brute force constructive algorithms greedy strings *2000	0 / 0	提高
2027	P1493E Enormous XOR bitmasks constructive algorithms greedy math strings two pointers *2600	0 / 0	CTSC
2013	P1496A Split it! brute force constructive algorithms greedy strings *900	0 / 0	普及-
1994	P1499E Chaotic Merge combinatorics dp math strings *2400	0 / 0	NOI
1977	P1504A Déjà Vu constructive algorithms strings *800	0 / 0	普及-
1964	P1506C Double-ended Strings brute force implementation strings *1000	0 / 0	普及-
1960	P1506G Maximize the Remaining String brute force data structures dp greedy strings *2000	0 / 0	提高
1959	P1508A Binary Literature constructive algorithms greedy implementation strings two pointers *1900	0 / 0	普及
1936	P1511D Min Cost String brute force constructive algorithms graphs greedy strings *1600	0 / 0	普及
1934	P1511F Chainword brute force data structures dp matrices string suffix structures strings *2700	0 / 0	CTSC
1930	P1512C A-B Palindrome constructive algorithms implementation strings *1200	0 / 0	普及-
1855	P1526D Kill Anton brute force constructive algorithms data structures math strings *2200	0 / 0	省选
1828	P1530E Minimax constructive algorithms greedy strings *2100	0 / 0	提高
1819	P1532F Prefixes and Suffixes *special problem strings	0 / 0	暂无评定
1797	P1535C Unstable String binary search dp greedy implementation strings two pointers *1400	0 / 0	普及-
1794	P1535F String Distance binary search brute force data structures hashing implementation strings *3000	0 / 0	CTSC

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