two pointers - Problem Set - HFOJ

	ID	Problem Show tags Hide tags	AC / Tried	Difficulty
	7068	P620D Professor GukiZ and Two Arrays binary search two pointers *2200	0 / 0	8
	7031	P627E Orchestra two pointers *3000	0 / 0	10
	6985	P633E Startup Funding binary search constructive algorithms data structures probabilities two pointers *2400	0 / 0	9
	6968	P639D Bear and Contribution data structures greedy sortings two pointers *2400	0 / 0	9
	6950	P644B Processing Queries special problem constructive algorithms data structures two pointers 1700	0 / 0	5
	6946	P645C Enduring Exodus binary search two pointers *1600	0 / 0	5
	6940	P650B Image Preview binary search brute force dp two pointers *1900	0 / 0	6
	6932	P652C Foe Pairs combinatorics sortings two pointers *1800	1 / 1	6
	6903	P660C Hard Process binary search dp two pointers *1600	0 / 0	5
	6869	P665F Four Divisors data structures dp math number theory sortings two pointers *2400	0 / 0	9
	6837	P676C Vasya and String binary search dp strings two pointers *1500	0 / 0	5
	6807	P682E Alyona and Triangles geometry two pointers *2600	0 / 0	10
	6749	P696F ...Dary! binary search geometry two pointers *3300	0 / 0	10
	6731	P701C They Are Everywhere binary search strings two pointers *1500	0 / 0	5
	6728	P702C Cellular Network binary search implementation two pointers *1500	0 / 0	5
	6666	P716B Complete the Word greedy two pointers *1300	0 / 0	4
	6634	P722F Cyclic Cipher chinese remainder theorem data structures implementation number theory two pointers *2800	0 / 0	10
	6575	P733C Epidemic in Monstropolis constructive algorithms dp greedy two pointers *1800	0 / 0	6
	6573	P733E Sleep in Class constructive algorithms data structures math two pointers *2400	0 / 0	9
	6569	P734C Anton and Making Potions binary search dp greedy two pointers *1600	0 / 0	5
	6533	P744E Hongcow Masters the Cyclic Shift strings two pointers *3200	0 / 0	10
	6525	P746F Music in Car data structures greedy two pointers *2200	0 / 0	8
	6513	P748E Santa Claus and Tangerines binary search data structures greedy two pointers *2100	0 / 0	7
	6509	P749C Voting greedy implementation two pointers *1500	0 / 0	5
	6455	P762B USB vs greedy implementation sortings two pointers *1400	0 / 0	4
	6454	P762C Two strings binary search hashing strings two pointers *2100	0 / 0	7
	6428	P767D Cartons of milk binary search data structures greedy sortings two pointers *2100	0 / 0	7
	6418	P769B News About Credit special problem greedy two pointers 1200	0 / 0	4
	6406	P771F Bear and Isomorphic Points geometry two pointers *3300	0 / 0	10
	6393	P774B Significant Cups special problem binary search data structures two pointers 2100	0 / 0	7
	6360	P777C Alyona and Spreadsheet binary search data structures dp greedy implementation two pointers *1600	0 / 0	5
	6327	P780H Intranet of Buses binary search geometry implementation two pointers *3100	0 / 0	10
	6307	P788A Functions again dp two pointers *1600	0 / 0	5
	6258	P799E Aquarium decoration data structures greedy two pointers *2500	0 / 0	9
	6170	P814C An impassioned circulation of affection brute force dp strings two pointers *1600	0 / 0	5
	6129	P818E Card Game Again binary search data structures number theory two pointers *1900	0 / 0	6
	6056	P830C Bamboo Partition brute force data structures implementation math number theory sortings two pointers *2300	0 / 0	8
	6044	P833B The Bakery binary search data structures divide and conquer dp two pointers *2200	1 / 1	8
	6007	P842A Kirill And The Game brute force two pointers *1200	0 / 0	4
	5983	P846F Random Query data structures math probabilities two pointers *1800	0 / 0	6
	5968	P848B Rooter's Song constructive algorithms data structures geometry implementation sortings two pointers *1900	0 / 0	6
	5942	P853B Jury Meeting greedy sortings two pointers *1800	0 / 0	6
	5861	P873C Strange Game On Matrix greedy two pointers *1600	0 / 0	5
	5856	P875B Sorting the Coins dsu implementation sortings two pointers *1500	0 / 0	5
	5808	P887D Ratings and Reality Shows data structures two pointers *2400	0 / 0	9
	5803	P888C K-Dominant Character binary search implementation two pointers *1400	0 / 0	4
	5791	P892B Wrath greedy implementation two pointers *1200	0 / 0	4
	5778	P895B XK Segments binary search math sortings two pointers *1700	0 / 0	5
	5757	P899E Segments Removal data structures dsu flows implementation two pointers *2000	0 / 0	7
	5748	P901C Bipartite Segments binary search data structures dfs and similar dsu graphs two pointers *2300	0 / 0	8
	5701	P912E Prime Gift binary search dfs and similar math meet-in-the-middle number theory two pointers *2400	0 / 0	9
	5657	P920C Swap Adjacent Elements dfs and similar greedy math sortings two pointers *1400	0 / 0	4
	5625	P924B Three-level Laser binary search greedy two pointers *1600	0 / 0	5
	5556	P939C Convenient For Everybody binary search two pointers *1600	0 / 0	5
	5554	P939E Maximize! binary search greedy ternary search two pointers *1800	0 / 0	6
	5517	P954G Castle Defense binary search data structures greedy two pointers *2000	0 / 0	7
	5493	P958F2 Lightsabers (medium) binary search two pointers *1800	0 / 0	6
	5476	P961B Lecture Sleep data structures dp implementation two pointers *1200	0 / 0	4
	5453	P965D Single-use Stones binary search flows greedy two pointers *1900	0 / 0	6
	5430	P978C Letters binary search implementation two pointers *1000	0 / 0	3
	5389	P985E Pencils and Boxes binary search data structures dp greedy two pointers *2100	0 / 0	7
	5368	P989D A Shade of Moonlight binary search geometry math sortings two pointers *2500	0 / 0	9
	5267	P1006C Three Parts of the Array binary search data structures two pointers *1200	0 / 0	4
	5263	P1007A Reorder the Array combinatorics data structures math sortings two pointers *1300	0 / 0	4
	5139	P1034D Intervals of Intervals binary search data structures two pointers *3500	0 / 0	10
	5134	P1036D Vasya and Arrays greedy two pointers *1600	0 / 0	5
	5107	P1041C Coffee Break binary search data structures greedy two pointers *1600	0 / 0	5
	5106	P1041D Glider binary search data structures two pointers *1700	0 / 0	5
	5100	P1042D Petya and Array data structures divide and conquer two pointers *1800	0 / 0	6
	5094	P1043D Mysterious Crime brute force combinatorics math meet-in-the-middle two pointers *1700	0 / 0	5
	5090	P1044A The Tower is Going Home binary search two pointers *1700	0 / 0	5
	5028	P1060C Maximum Subrectangle binary search implementation two pointers *1600	0 / 0	5
	4994	P1066B Heaters greedy two pointers *1500	0 / 0	5
	4965	P1073C Vasya and Robot binary search two pointers *1800	1 / 1	6
	4781	P1107C Brutality greedy sortings two pointers *1300	10 / 27	4
	4700	P1120A Diana and Liana greedy implementation two pointers *1900	0 / 0	6
	4676	P1131G Most Dangerous Shark data structures dp two pointers *2700	0 / 0	10
	4666	P1133C Balanced Team sortings two pointers *1200	0 / 0	4
	4664	P1133E K Balanced Teams dp sortings two pointers *1800	0 / 0	6
	4590	P1148B Born This Way binary search brute force two pointers *1600	0 / 0	5
	4587	P1148E Earth Wind and Fire constructive algorithms greedy math sortings two pointers *2300	0 / 0	8
	4542	P1156C Match Points binary search greedy sortings ternary search two pointers *2000	0 / 0	7
	4540	P1156E Special Segments of Permutation data structures divide and conquer dsu two pointers *2200	0 / 0	8
	4531	P1157F Maximum Balanced Circle constructive algorithms dp greedy two pointers *2000	0 / 0	7
	4529	P1158A The Party and Sweets binary search constructive algorithms greedy implementation math sortings two pointers *1500	0 / 0	5
	4501	P1166C A Tale of Two Lands binary search sortings two pointers *1500	0 / 0	5
	4493	P1167E Range Deleting binary search combinatorics data structures two pointers *2100	0 / 0	7
	4489	P1168B Good Triple brute force two pointers *1900	0 / 0	6
	4453	P1175G Yet Another Partiton Problem data structures divide and conquer dp geometry two pointers *3000	0 / 0	10
	4425	P1181D Irrigation binary search data structures implementation sortings trees two pointers *2200	0 / 0	8
	4371	P1188B Count Pairs math matrices number theory two pointers *2300	0 / 0	8
	4364	P1190A Tokitsukaze and Discard Items implementation two pointers *1400	0 / 0	4
	4361	P1190D Tokitsukaze and Strange Rectangle data structures divide and conquer sortings two pointers *2000	0 / 0	7
	4345	P1194F Crossword Expert combinatorics dp number theory probabilities two pointers *2400	6 / 13	9
	4338	P1195E OpenStreetMap data structures two pointers *2100	0 / 0	7
	4332	P1196D2 RGB Substring (hard version) data structures dp implementation two pointers *1600	0 / 0	5
	4323	P1198A MP3 sortings two pointers *1600	0 / 0	5
	4312	P1200D White Lines brute force data structures dp implementation two pointers *1900	0 / 0	6
	4293	P1203D2 Remove the Substring (hard version) binary search greedy implementation two pointers *1700	0 / 0	5
	4267	P1208B Uniqueness binary search brute force implementation two pointers *1500	0 / 0	5

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