Problem Set - SAST OJ

	ID	Problem Show tags Hide tags	AC / Tried	Difficulty
	456	codeforces#P1812D Trivial Conjecture *special problem constructive algorithms math number theory	0 / 0	(None)
	455	codeforces#P1812E Not a Geometry Problem special problem special problem constructive algorithms geometry math	0 / 0	(None)
	454	codeforces#P1812F Factorization *special problem number theory	0 / 0	(None)
	453	codeforces#P1812G Colour Vision *special problem implementation	0 / 0	(None)
	452	codeforces#P1812H Expected Twist *special problem interactive	0 / 0	(None)
	451	codeforces#P1812I Mountain Climber *special problem	0 / 0	(None)
	450	codeforces#P1812J Unmysterious Language *special problem constructive algorithms strings	0 / 0	(None)
	449	codeforces#P1814A Coins implementation math *800	0 / 0	3
	448	codeforces#P1814B Long Legs brute force math *1700	0 / 0	5
	447	codeforces#P1814C Search in Parallel constructive algorithms greedy sortings *1500	0 / 0	5
	446	codeforces#P1814D Balancing Weapons binary search brute force data structures math two pointers *2500	0 / 0	9
	445	codeforces#P1814E Chain Chips data structures dp matrices *2300	0 / 0	8
	444	codeforces#P1814F Communication Towers brute force divide and conquer dsu *2700	0 / 0	10
	443	codeforces#P1815A Ian and Array Sorting greedy math *1300	0 / 0	4
	442	codeforces#P1815B Sum Graph brute force constructive algorithms graphs implementation interactive shortest paths trees *2000	0 / 0	7
	441	codeforces#P1815C Between constructive algorithms dfs and similar graphs greedy *2200	0 / 0	8
	440	codeforces#P1815D XOR Counting bitmasks combinatorics dp math *2600	0 / 0	10
	439	codeforces#P1815E Bosco and Particle dp math number theory strings *3100	0 / 0	10
	438	codeforces#P1815F OH NO1 (-2-3-4) constructive algorithms graphs math *3500	0 / 0	10
	437	codeforces#P1816A Ian Visits Mary constructive algorithms geometry number theory *800	0 / 0	3
	436	codeforces#P1816B Grid Reconstruction constructive algorithms greedy *1000	0 / 0	3
	435	codeforces#P1817A Almost Increasing Subsequence binary search data structures greedy *1500	0 / 0	5
	434	codeforces#P1817B Fish Graph brute force constructive algorithms dfs and similar graphs *1900	0 / 0	6
	433	codeforces#P1817C Similar Polynomials combinatorics math *2400	0 / 0	9
	432	codeforces#P1817D Toy Machine constructive algorithms games implementation *2700	0 / 0	10
	431	codeforces#P1817E Half-sum brute force divide and conquer greedy *3400	0 / 0	10
	430	codeforces#P1817F Entangled Substrings string suffix structures strings *3500	0 / 0	10
	429	codeforces#P1818A Politics greedy implementation *800	0 / 0	3
	428	codeforces#P1818B Indivisible constructive algorithms *900	0 / 0	3
	427	codeforces#P1819A Constructive Problem brute force greedy *1300	0 / 0	4
	426	codeforces#P1819B The Butcher geometry greedy implementation sortings two pointers *1900	0 / 0	6
	425	codeforces#P1819C The Fox and the Complete Tree Traversal constructive algorithms dp implementation math trees *2400	0 / 0	9
	424	codeforces#P1819D Misha and Apples brute force data structures dp two pointers *2800	0 / 0	10
	423	codeforces#P1819E Roads in E City interactive math probabilities trees *3200	0 / 0	10
	422	codeforces#P1819F Willy-nilly, Crack, Into Release! data structures dp *3500	0 / 0	10
	421	codeforces#P1820A Yura's New Name implementation strings *800	0 / 0	3
	420	codeforces#P1820B JoJo's Incredible Adventures math strings two pointers *1100	0 / 0	3
	419	codeforces#P1821A Matching combinatorics math *800	0 / 0	3
	418	codeforces#P1821B Sort the Subarray brute force greedy *1100	0 / 0	3
	417	codeforces#P1821C Tear It Apart brute force implementation math strings *1300	0 / 0	4
	416	codeforces#P1821D Black Cells binary search brute force greedy math *1900	0 / 0	6
	415	codeforces#P1821E Rearrange Brackets brute force dp greedy sortings strings *2100	0 / 0	7
	414	codeforces#P1821F Timber combinatorics dp fft math *2600	0 / 0	10
	413	codeforces#P1822A TubeTube Feed brute force implementation *800	0 / 0	3
	412	codeforces#P1822B Karina and Array greedy math sortings *800	0 / 0	3
	411	codeforces#P1822C Bun Lover math *800	0 / 0	3
	410	codeforces#P1822D Super-Permutation constructive algorithms math *1200	0 / 0	4
	409	codeforces#P1822E Making Anti-Palindromes greedy math strings *1600	0 / 0	5
	408	codeforces#P1822F Gardening Friends brute force dfs and similar dp graphs trees *1700	0 / 0	5
	407	codeforces#P1822G1 Magic Triples (Easy Version) brute force data structures math number theory *1700	0 / 0	5
	406	codeforces#P1822G2 Magic Triples (Hard Version) brute force data structures math number theory *2200	0 / 0	8
	405	codeforces#P1823A A-characteristic combinatorics constructive algorithms math *800	0 / 0	3
	404	codeforces#P1823B Sort with Step brute force math sortings *900	0 / 0	3
	403	codeforces#P1823C Strongly Composite greedy math number theory *1300	0 / 0	4
	402	codeforces#P1823D Unique Palindromes constructive algorithms math strings *1900	0 / 0	6
	401	codeforces#P1823E Removing Graph brute force dp games graphs math *2500	0 / 0	9
	400	codeforces#P1823F Random Walk dp graphs math probabilities trees *2600	0 / 0	10
	399	codeforces#P1824A LuoTianyi and the Show greedy implementation *1400	0 / 0	4
	398	codeforces#P1824B1 LuoTianyi and the Floating Islands (Easy Version) combinatorics math probabilities trees *1800	0 / 0	6
	397	codeforces#P1824B2 LuoTianyi and the Floating Islands (Hard Version) combinatorics dfs and similar math probabilities trees *2300	0 / 0	8
	396	codeforces#P1824C LuoTianyi and XOR-Tree data structures dfs and similar dp dsu greedy trees *2500	0 / 0	9
	395	codeforces#P1824D LuoTianyi and the Function data structures *3000	0 / 0	10
	394	codeforces#P1824E LuoTianyi and Cartridge data structures trees *3500	0 / 0	10
	393	codeforces#P1825A LuoTianyi and the Palindrome String greedy strings *800	0 / 0	3
	392	codeforces#P1825B LuoTianyi and the Table greedy math *1000	0 / 0	3
	391	codeforces#P1826A Trust Nobody brute force greedy implementation sortings *1200	0 / 0	4
	390	codeforces#P1826B Lunatic Never Content math number theory *1100	0 / 0	3
	389	codeforces#P1826C Dreaming of Freedom greedy math number theory *1300	0 / 0	4
	388	codeforces#P1826D Running Miles brute force dp greedy *1700	0 / 0	5
	387	codeforces#P1826E Walk the Runway bitmasks brute force data structures dp graphs implementation sortings *2400	0 / 0	9
	386	codeforces#P1826F Fading into Fog geometry interactive math probabilities *2800	0 / 0	10
	385	codeforces#P1827A Counting Orders combinatorics math sortings two pointers *1100	0 / 0	3
	384	codeforces#P1827B1 Range Sorting (Easy Version) binary search dp dsu greedy trees two pointers *2000	0 / 0	7
	383	codeforces#P1827B2 Range Sorting (Hard Version) binary search data structures dp greedy *2400	0 / 0	9
	382	codeforces#P1827C Palindrome Partition binary search brute force data structures dp hashing strings *2600	0 / 0	10
	381	codeforces#P1827D Two Centroids data structures dfs and similar greedy trees *2800	0 / 0	10
	380	codeforces#P1827E Bus Routes binary search constructive algorithms dfs and similar greedy trees *3400	0 / 0	10
	379	codeforces#P1827F Copium Permutation constructive algorithms data structures greedy *3500	0 / 0	10
	378	codeforces#P1828A Divisible Array constructive algorithms math *800	0 / 0	3
	377	codeforces#P1828B Permutation Swap math number theory *900	0 / 0	3
	376	codeforces#P1829A Love Story implementation strings *800	0 / 0	3
	375	codeforces#P1829B Blank Space implementation *800	0 / 0	3
	374	codeforces#P1829C Mr bitmasks greedy implementation *800	0 / 0	3
	373	codeforces#P1829D Gold Rush brute force dfs and similar dp implementation *1000	0 / 0	3
	372	codeforces#P1829E The Lakes dfs and similar dsu graphs implementation *1100	0 / 0	3
	371	codeforces#P1829F Forever Winter dfs and similar graphs math *1300	0 / 0	4
	370	codeforces#P1829G Hits Different data structures dp implementation math *1600	0 / 0	5
	369	codeforces#P1829H Don't Blame Me bitmasks combinatorics dp math *1700	0 / 0	5
	368	codeforces#P1830A Copil Copac Draws Trees dfs and similar dp graphs trees *1400	0 / 0	4
	367	codeforces#P1830B The BOSS Can Count Pairs brute force math *2000	0 / 0	7
	366	codeforces#P1830C Hyperregular Bracket Strings combinatorics greedy hashing math number theory sortings *2400	0 / 0	9
	365	codeforces#P1830D Mex Tree brute force dp trees *2800	0 / 0	10
	364	codeforces#P1830E Bully Sort data structures math *3500	0 / 0	10
	363	codeforces#P1830F The Third Grace data structures dp *3200	0 / 0	10
	362	codeforces#P1831A Twin Permutations constructive algorithms *800	0 / 0	3
	361	codeforces#P1831B Array merging constructive algorithms greedy *1000	0 / 0	3
	360	codeforces#P1832A New Palindrome strings *800	0 / 0	3
	359	codeforces#P1832B Maximum Sum brute force sortings two pointers *1100	0 / 0	3
	358	codeforces#P1832C Contrast Value greedy implementation *1200	0 / 0	4
	357	codeforces#P1832D1 Red-Blue Operations (Easy Version) binary search greedy implementation math *2100	0 / 0	7

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