Problem Set - SAST OJ

	ID	Problem Show tags Hide tags	AC / Tried	Difficulty
	484	P1808E2 Minibuses on Venus (medium version) combinatorics divide and conquer dp matrices *2500	0 / 0	9
	483	P1808E3 Minibuses on Venus (hard version) brute force combinatorics dp math *2800	0 / 0	10
	482	P1809A Garland implementation *800	0 / 0	3
	481	P1809B Points on Plane binary search greedy math *1000	0 / 0	3
	480	P1809C Sum on Subarrays constructive algorithms greedy math *1500	0 / 0	5
	479	P1809D Binary String Sorting constructive algorithms greedy *1800	0 / 0	6
	478	P1809E Two Tanks binary search dp implementation math *2400	0 / 0	9
	477	P1809F Traveling in Berland binary search data structures graphs greedy implementation *2500	0 / 0	9
	476	P1809G Prediction combinatorics dp math *2800	0 / 0	10
	475	P1810A Beautiful Sequence brute force greedy *800	0 / 0	3
	474	P1810B Candies constructive algorithms math number theory *800	0 / 0	3
	473	P1810C Make It Permutation brute force greedy sortings *1300	0 / 0	4
	472	P1810D Climbing the Tree binary search math *1700	0 / 0	5
	471	P1810E Monsters brute force data structures dfs and similar dsu graphs greedy *2100	0 / 0	7
	470	P1810F M-tree data structures math sortings trees *2800	0 / 0	10
	469	P1810G The Maximum Prefix dp *3200	0 / 0	10
	468	P1810H Last Number combinatorics math *2900	0 / 0	10
	467	P1811A Insert Digit greedy math strings *800	0 / 0	3
	466	P1811B Conveyor Belts implementation math *1000	0 / 0	3
	465	P1811C Restore the Array constructive algorithms greedy *1100	0 / 0	3
	464	P1811D Umka and a Long Flight constructive algorithms implementation math *1600	0 / 0	5
	463	P1811E Living Sequence binary search dp math number theory *1500	0 / 0	5
	462	P1811F Is It Flower? dfs and similar graphs implementation *2100	0 / 0	7
	461	P1811G1 Vlad and the Nice Paths (easy version) combinatorics dp math *2100	0 / 0	7
	460	P1811G2 Vlad and the Nice Paths (hard version) binary search combinatorics data structures dp math two pointers *2200	0 / 0	8
	459	P1812A Are You a Robot? special problem special problem *special problem expression parsing strings	0 / 0	(None)
	458	P1812B Was it Rated? special problem special problem *special problem brute force implementation	0 / 0	(None)
	457	P1812C Digits *special problem	0 / 0	(None)
	456	P1812D Trivial Conjecture *special problem constructive algorithms math number theory	0 / 0	(None)
	455	P1812E Not a Geometry Problem special problem special problem constructive algorithms geometry math	0 / 0	(None)
	454	P1812F Factorization *special problem number theory	0 / 0	(None)
	453	P1812G Colour Vision *special problem implementation	0 / 0	(None)
	452	P1812H Expected Twist *special problem interactive	0 / 0	(None)
	451	P1812I Mountain Climber *special problem	0 / 0	(None)
	450	P1812J Unmysterious Language *special problem constructive algorithms strings	0 / 0	(None)
	449	P1814A Coins implementation math *800	0 / 0	3
	448	P1814B Long Legs brute force math *1700	0 / 0	5
	447	P1814C Search in Parallel constructive algorithms greedy sortings *1500	0 / 0	5
	446	P1814D Balancing Weapons binary search brute force data structures math two pointers *2500	0 / 0	9
	445	P1814E Chain Chips data structures dp matrices *2300	0 / 0	8
	444	P1814F Communication Towers brute force divide and conquer dsu *2700	0 / 0	10
	443	P1815A Ian and Array Sorting greedy math *1300	0 / 0	4
	442	P1815B Sum Graph brute force constructive algorithms graphs implementation interactive shortest paths trees *2000	0 / 0	7
	441	P1815C Between constructive algorithms dfs and similar graphs greedy *2200	0 / 0	8
	440	P1815D XOR Counting bitmasks combinatorics dp math *2600	0 / 0	10
	439	P1815E Bosco and Particle dp math number theory strings *3100	0 / 0	10
	438	P1815F OH NO1 (-2-3-4) constructive algorithms graphs math *3500	0 / 0	10
	437	P1816A Ian Visits Mary constructive algorithms geometry number theory *800	0 / 0	3
	436	P1816B Grid Reconstruction constructive algorithms greedy *1000	0 / 0	3
	435	P1817A Almost Increasing Subsequence binary search data structures greedy *1500	0 / 0	5
	434	P1817B Fish Graph brute force constructive algorithms dfs and similar graphs *1900	0 / 0	6
	433	P1817C Similar Polynomials combinatorics math *2400	0 / 0	9
	432	P1817D Toy Machine constructive algorithms games implementation *2700	0 / 0	10
	431	P1817E Half-sum brute force divide and conquer greedy *3400	0 / 0	10
	430	P1817F Entangled Substrings string suffix structures strings *3500	0 / 0	10
	429	P1818A Politics greedy implementation *800	0 / 0	3
	428	P1818B Indivisible constructive algorithms *900	0 / 0	3
	427	P1819A Constructive Problem brute force greedy *1300	0 / 0	4
	426	P1819B The Butcher geometry greedy implementation sortings two pointers *1900	0 / 0	6
	425	P1819C The Fox and the Complete Tree Traversal constructive algorithms dp implementation math trees *2400	0 / 0	9
	424	P1819D Misha and Apples brute force data structures dp two pointers *2800	0 / 0	10
	423	P1819E Roads in E City interactive math probabilities trees *3200	0 / 0	10
	422	P1819F Willy-nilly, Crack, Into Release! data structures dp *3500	0 / 0	10
	421	P1820A Yura's New Name implementation strings *800	0 / 0	3
	420	P1820B JoJo's Incredible Adventures math strings two pointers *1100	0 / 0	3
	419	P1821A Matching combinatorics math *800	0 / 0	3
	418	P1821B Sort the Subarray brute force greedy *1100	0 / 0	3
	417	P1821C Tear It Apart brute force implementation math strings *1300	0 / 0	4
	416	P1821D Black Cells binary search brute force greedy math *1900	0 / 0	6
	415	P1821E Rearrange Brackets brute force dp greedy sortings strings *2100	0 / 0	7
	414	P1821F Timber combinatorics dp fft math *2600	0 / 0	10
	413	P1822A TubeTube Feed brute force implementation *800	0 / 0	3
	412	P1822B Karina and Array greedy math sortings *800	0 / 0	3
	411	P1822C Bun Lover math *800	0 / 0	3
	410	P1822D Super-Permutation constructive algorithms math *1200	0 / 0	4
	409	P1822E Making Anti-Palindromes greedy math strings *1600	0 / 0	5
	408	P1822F Gardening Friends brute force dfs and similar dp graphs trees *1700	0 / 0	5
	407	P1822G1 Magic Triples (Easy Version) brute force data structures math number theory *1700	0 / 0	5
	406	P1822G2 Magic Triples (Hard Version) brute force data structures math number theory *2200	0 / 0	8
	405	P1823A A-characteristic combinatorics constructive algorithms math *800	0 / 0	3
	404	P1823B Sort with Step brute force math sortings *900	0 / 0	3
	403	P1823C Strongly Composite greedy math number theory *1300	0 / 0	4
	402	P1823D Unique Palindromes constructive algorithms math strings *1900	0 / 0	6
	401	P1823E Removing Graph brute force dp games graphs math *2500	0 / 0	9
	400	P1823F Random Walk dp graphs math probabilities trees *2600	0 / 0	10
	399	P1824A LuoTianyi and the Show greedy implementation *1400	0 / 0	4
	398	P1824B1 LuoTianyi and the Floating Islands (Easy Version) combinatorics math probabilities trees *1800	0 / 0	6
	397	P1824B2 LuoTianyi and the Floating Islands (Hard Version) combinatorics dfs and similar math probabilities trees *2300	0 / 0	8
	396	P1824C LuoTianyi and XOR-Tree data structures dfs and similar dp dsu greedy trees *2500	0 / 0	9
	395	P1824D LuoTianyi and the Function data structures *3000	0 / 0	10
	394	P1824E LuoTianyi and Cartridge data structures trees *3500	0 / 0	10
	393	P1825A LuoTianyi and the Palindrome String greedy strings *800	0 / 0	3
	392	P1825B LuoTianyi and the Table greedy math *1000	0 / 0	3
	391	P1826A Trust Nobody brute force greedy implementation sortings *1200	0 / 0	4
	390	P1826B Lunatic Never Content math number theory *1100	0 / 0	3
	389	P1826C Dreaming of Freedom greedy math number theory *1300	0 / 0	4
	388	P1826D Running Miles brute force dp greedy *1700	0 / 0	5
	387	P1826E Walk the Runway bitmasks brute force data structures dp graphs implementation sortings *2400	0 / 0	9
	386	P1826F Fading into Fog geometry interactive math probabilities *2800	0 / 0	10
	385	P1827A Counting Orders combinatorics math sortings two pointers *1100	0 / 0	3

Pick a problem randomly based on the current filter.