Problem Set - SAST OJ

	ID	Problem Show tags Hide tags	AC / Tried	Difficulty
	5539	P821B Okabe and Banana Trees brute force math *1300	0 / 0	4
	5538	P821C Okabe and Boxes data structures greedy trees *1500	0 / 0	5
	5537	P821D Okabe and City dfs and similar graphs shortest paths *2200	0 / 0	8
	5536	P821E Okabe and El Psy Kongroo dp matrices *2100	0 / 0	7
	5535	P822A I'm bored with life implementation math number theory *800	0 / 0	3
	5534	P822B Crossword solving brute force implementation strings *1000	0 / 0	3
	5533	P822C Hacker, pack your bags! binary search greedy implementation sortings *1600	0 / 0	5
	5532	P822D My pretty girl Noora brute force dp greedy math number theory *1800	0 / 0	6
	5531	P822E Liar binary search dp hashing string suffix structures *2400	0 / 0	9
	5530	P822F Madness constructive algorithms dfs and similar trees *2500	0 / 0	9
	5529	P825A Binary Protocol implementation *1100	0 / 0	3
	5528	P825B Five-In-a-Row brute force implementation *1600	0 / 0	5
	5527	P825C Multi-judge Solving greedy implementation *1600	0 / 0	5
	5526	P825D Suitable Replacement binary search greedy implementation *1500	0 / 0	5
	5525	P825E Minimal Labels data structures dfs and similar graphs greedy *2300	0 / 0	8
	5524	P825F String Compression dp hashing string suffix structures strings *2400	0 / 0	9
	5523	P825G Tree Queries dfs and similar graphs trees *2500	0 / 0	9
	5522	P827A String Reconstruction data structures greedy sortings strings *1700	0 / 0	5
	5521	P827B High Load constructive algorithms greedy implementation trees *1800	0 / 0	6
	5520	P827C DNA Evolution data structures strings *2100	0 / 0	7
	5519	P827D Best Edge Weight data structures dfs and similar graphs trees *2700	0 / 0	10
	5518	P827E Rusty String fft math strings *2700	0 / 0	10
	5517	P827F Dirty Arkady's Kitchen data structures dp graphs shortest paths *3200	0 / 0	10
	5516	P828A Restaurant Tables implementation *1200	0 / 0	4
	5515	P828B Black Square implementation *1300	0 / 0	4
	5514	P830A Office Keys binary search brute force dp greedy sortings *1800	0 / 0	6
	5513	P830B Cards Sorting data structures implementation sortings *1600	0 / 0	5
	5512	P830C Bamboo Partition brute force data structures implementation math number theory sortings two pointers *2300	0 / 0	8
	5511	P830D Singer House combinatorics dp graphs trees *2800	0 / 0	10
	5510	P830E Perpetual Motion Machine constructive algorithms dp graphs implementation math trees *3100	0 / 0	10
	5509	P831A Unimodal Array implementation *1000	0 / 0	3
	5508	P831B Keyboard Layouts implementation strings *800	0 / 0	3
	5507	P831C Jury Marks brute force constructive algorithms *1700	0 / 0	5
	5506	P832A Sasha and Sticks games math *800	0 / 0	3
	5505	P832B Petya and Exam implementation strings *1600	0 / 0	5
	5504	P832C Strange Radiation binary search implementation math *2500	0 / 0	9
	5503	P832D Misha, Grisha and Underground dfs and similar graphs trees *1900	0 / 0	6
	5502	P832E Vasya and Shifts matrices *2600	0 / 0	10
	5501	P833A The Meaningless Game math number theory *1700	0 / 0	5
	5500	P833B The Bakery binary search data structures divide and conquer dp two pointers *2200	0 / 0	8
	5499	P833C Ever-Hungry Krakozyabra brute force combinatorics greedy math *2700	0 / 0	10
	5498	P833D Red-Black Cobweb data structures divide and conquer implementation trees *2800	0 / 0	10
	5497	P833E Caramel Clouds data structures dp sortings *3400	0 / 0	10
	5496	P834A The Useless Toy implementation *900	0 / 0	3
	5495	P834B The Festive Evening data structures implementation *1100	0 / 0	3
	5494	P835A Key races math *800	0 / 0	3
	5493	P835B The number on the board greedy *1100	0 / 0	3
	5492	P835C Star sky dp implementation *1600	0 / 0	5
	5491	P835D Palindromic characteristics brute force dp hashing strings *1900	0 / 0	6
	5490	P835E The penguin's game binary search constructive algorithms interactive *2400	0 / 0	9
	5489	P835F Roads in the Kingdom dfs and similar dp graphs trees *2500	0 / 0	9
	5488	P837A Text Volume implementation *800	0 / 0	3
	5487	P837B Flag of Berland brute force implementation *1600	0 / 0	5
	5486	P837C Two Seals brute force implementation *1500	0 / 0	5
	5485	P837D Round Subset dp math *2100	0 / 0	7
	5484	P837E Vasya's Function binary search implementation math *2100	0 / 0	7
	5483	P837F Prefix Sums binary search brute force combinatorics math matrices *2400	0 / 0	9
	5482	P837G Functions On The Segments data structures *2500	0 / 0	9
	5481	P838A Binary Blocks brute force *1400	0 / 0	4
	5480	P838B Diverging Directions data structures dfs and similar trees *2100	0 / 0	7
	5479	P838C Future Failure dp games *2800	0 / 0	10
	5478	P838D Airplane Arrangements math number theory *2700	0 / 0	10
	5477	P838E Convex Countour dp *2300	0 / 0	8
	5476	P838F Expected Earnings *2800	0 / 0	10
	5475	P839A Arya and Bran implementation *900	0 / 0	3
	5474	P839B Game of the Rows brute force greedy implementation *1900	0 / 0	6
	5473	P839C Journey dfs and similar dp graphs probabilities trees *1500	0 / 0	5
	5472	P839D Winter is here combinatorics dp math number theory *2200	0 / 0	8
	5471	P839E Mother of Dragons brute force graphs math meet-in-the-middle *2700	0 / 0	10
	5470	P840A Leha and Function combinatorics greedy math number theory sortings *1300	0 / 0	4
	5469	P840B Leha and another game about graph constructive algorithms data structures dfs and similar dp graphs *2100	0 / 0	7
	5468	P840C On the Bench combinatorics dp *2500	0 / 0	9
	5467	P840D Destiny data structures probabilities *2500	0 / 0	9
	5466	P840E In a Trap trees *3200	0 / 0	10
	5465	P841A Generous Kefa brute force implementation *900	0 / 0	3
	5464	P841B Godsend games math *1100	0 / 0	3
	5463	P842A Kirill And The Game brute force two pointers *1200	0 / 0	4
	5462	P842B Gleb And Pizza geometry *1100	0 / 0	3
	5461	P842C Ilya And The Tree dfs and similar graphs math number theory trees *2000	0 / 0	7
	5460	P842D Vitya and Strange Lesson binary search data structures *2000	0 / 0	7
	5459	P842E Nikita and game binary search dfs and similar divide and conquer graphs trees *2800	0 / 0	10
	5458	P843A Sorting by Subsequences dfs and similar dsu implementation math sortings *1400	0 / 0	4
	5457	P843B Interactive LowerBound brute force interactive probabilities *2000	0 / 0	7
	5456	P843C Upgrading Tree constructive algorithms dfs and similar graphs math trees *2600	0 / 0	10
	5455	P843D Dynamic Shortest Path graphs shortest paths *3400	0 / 0	10
	5454	P843E Maximum Flow flows graphs *3000	0 / 0	10
	5453	P844A Diversity greedy implementation strings *1000	0 / 0	3
	5452	P844B Rectangles combinatorics math *1300	0 / 0	4
	5451	P845A Chess Tourney implementation sortings *1100	0 / 0	3
	5450	P845B Luba And The Ticket brute force greedy implementation *1600	0 / 0	5
	5449	P845C Two TVs data structures greedy sortings *1500	0 / 0	5
	5448	P845D Driving Test data structures dp greedy *1800	0 / 0	6
	5447	P845E Fire in the City binary search data structures *2400	0 / 0	9
	5446	P845F Guards In The Storehouse bitmasks dp *2500	0 / 0	9
	5445	P845G Shortest Path Problem? dfs and similar graphs math *2300	0 / 0	8
	5444	P846A Curriculum Vitae brute force implementation *1500	0 / 0	5
	5443	P846B Math Show brute force greedy *1800	0 / 0	6
	5442	P846C Four Segments brute force data structures dp *1800	0 / 0	6
	5441	P846D Monitor binary search data structures *1900	0 / 0	6
	5440	P846E Chemistry in Berland dfs and similar greedy trees *2300	0 / 0	8

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