Problem Set - SAST OJ

	ID	Problem Show tags Hide tags	AC / Tried	Difficulty
	356	codeforces#P1832D2 Red-Blue Operations (Hard Version) binary search constructive algorithms greedy implementation math *2400	0 / 0	9
	355	codeforces#P1832E Combinatorics Problem brute force combinatorics dp *2200	0 / 0	8
	354	codeforces#P1832F Zombies binary search dp *3200	0 / 0	10
	353	codeforces#P1833A Musical Puzzle implementation strings *800	0 / 0	3
	352	codeforces#P1833B Restore the Weather greedy sortings *900	0 / 0	3
	351	codeforces#P1833C Vlad Building Beautiful Array greedy math *800	0 / 0	3
	350	codeforces#P1833D Flipper brute force constructive algorithms greedy *1400	0 / 0	4
	349	codeforces#P1833E Round Dance dfs and similar dsu graphs shortest paths *1600	0 / 0	5
	348	codeforces#P1833F Ira and Flamenco combinatorics constructive algorithms data structures implementation math sortings two pointers *1700	0 / 0	5
	347	codeforces#P1833G Ksyusha and Chinchilla constructive algorithms dfs and similar dp dsu greedy implementation trees *1800	0 / 0	6
	346	codeforces#P1834A Unit Array greedy math *800	0 / 0	3
	345	codeforces#P1834B Maximum Strength greedy math *1000	0 / 0	3
	344	codeforces#P1834C Game with Reversing games greedy math strings *1200	0 / 0	4
	343	codeforces#P1834D Survey in Class brute force data structures greedy implementation sortings *1900	0 / 0	6
	342	codeforces#P1834E MEX of LCM binary search data structures implementation math number theory *2300	0 / 0	8
	341	codeforces#P1834F Typewriter brute force math *2500	0 / 0	9
	340	codeforces#P1835A k-th equality brute force implementation math *1700	0 / 0	5
	339	codeforces#P1835B Lottery binary search brute force greedy math two pointers *2500	0 / 0	9
	338	codeforces#P1835C Twin Clusters bitmasks brute force constructive algorithms math probabilities *2600	0 / 0	10
	337	codeforces#P1835D Doctor's Brown Hypothesis dfs and similar graphs math number theory *2900	0 / 0	10
	336	codeforces#P1835E Old Mobile combinatorics dp probabilities *3500	0 / 0	10
	335	codeforces#P1835F Good Graph bitmasks dfs and similar graph matchings graphs implementation *3500	0 / 0	10
	334	codeforces#P1836A Destroyer implementation sortings *800	0 / 0	3
	333	codeforces#P1836B Astrophysicists greedy math *1100	0 / 0	3
	332	codeforces#P1837A Grasshopper on a Line constructive algorithms math *800	0 / 0	3
	331	codeforces#P1837B Comparison String greedy *900	0 / 0	3
	330	codeforces#P1837C Best Binary String constructive algorithms greedy *1000	0 / 0	3
	329	codeforces#P1837D Bracket Coloring constructive algorithms greedy *1400	0 / 0	4
	328	codeforces#P1837E Playoff Fixing combinatorics trees *2200	0 / 0	8
	327	codeforces#P1837F Editorial for Two binary search data structures greedy implementation *2400	0 / 0	9
	326	codeforces#P1838A Blackboard List constructive algorithms math *800	0 / 0	3
	325	codeforces#P1838B Minimize Permutation Subarrays constructive algorithms math *1100	0 / 0	3
	324	codeforces#P1838C No Prime Differences constructive algorithms math number theory *1400	0 / 0	4
	323	codeforces#P1838D Bracket Walk data structures greedy strings *2100	0 / 0	7
	322	codeforces#P1838E Count Supersequences combinatorics dp math *2500	0 / 0	9
	321	codeforces#P1838F Stuck Conveyor binary search constructive algorithms interactive *3000	0 / 0	10
	320	codeforces#P1839A The Good Array greedy implementation math *800	0 / 0	3
	319	codeforces#P1839B Lamps greedy sortings *1100	0 / 0	3
	318	codeforces#P1839C Insert Zero and Invert Prefix constructive algorithms *1300	0 / 0	4
	317	codeforces#P1839D Ball Sorting data structures dp sortings *2100	0 / 0	7
	316	codeforces#P1839E Decreasing Game constructive algorithms dfs and similar dp greedy interactive *2400	0 / 0	9
	315	codeforces#P1840A Cipher Shifer implementation strings two pointers *800	0 / 0	3
	314	codeforces#P1840B Binary Cafe bitmasks combinatorics math *1100	0 / 0	3
	313	codeforces#P1840C Ski Resort combinatorics math two pointers *1000	0 / 0	3
	312	codeforces#P1840D Wooden Toy Festival binary search greedy sortings *1400	0 / 0	4
	311	codeforces#P1840E Character Blocking data structures hashing implementation *1600	0 / 0	5
	310	codeforces#P1840F Railguns brute force dfs and similar dp graphs *2200	0 / 0	8
	309	codeforces#P1840G1 In Search of Truth (Easy Version) constructive algorithms interactive math meet-in-the-middle probabilities *2200	0 / 0	8
	308	codeforces#P1840G2 In Search of Truth (Hard Version) constructive algorithms interactive math meet-in-the-middle probabilities *2500	0 / 0	9
	307	codeforces#P1841A Game with Board constructive algorithms games *800	0 / 0	3
	306	codeforces#P1841B Keep it Beautiful implementation *1000	0 / 0	3
	305	codeforces#P1841C Ranom Numbers brute force dp greedy math strings *1800	0 / 0	6
	304	codeforces#P1841D Pairs of Segments data structures greedy sortings two pointers *2000	0 / 0	7
	303	codeforces#P1841E Fill the Matrix data structures greedy math *2200	0 / 0	8
	302	codeforces#P1841F Monocarp and a Strategic Game geometry sortings two pointers *2700	0 / 0	10
	301	codeforces#P1842A Tenzing and Tsondu games math *800	0 / 0	3
	300	codeforces#P1842B Tenzing and Books bitmasks greedy math *1100	0 / 0	3
	299	codeforces#P1842C Tenzing and Balls dp *1500	0 / 0	5
	298	codeforces#P1842D Tenzing and His Animal Friends constructive algorithms graphs greedy *1900	0 / 0	6
	297	codeforces#P1842E Tenzing and Triangle data structures dp geometry greedy math *2300	0 / 0	8
	296	codeforces#P1842F Tenzing and Tree dfs and similar greedy shortest paths sortings trees *2500	0 / 0	9
	295	codeforces#P1842G Tenzing and Random Operations combinatorics dp math probabilities *2800	0 / 0	10
	294	codeforces#P1842H Tenzing and Random Real Numbers bitmasks dp graphs math probabilities *3000	0 / 0	10
	293	codeforces#P1842I Tenzing and Necklace divide and conquer dp greedy *3500	0 / 0	10
	292	codeforces#P1843A Sasha and Array Coloring greedy sortings two pointers *800	0 / 0	3
	291	codeforces#P1843B Long Long greedy math two pointers *800	0 / 0	3
	290	codeforces#P1843C Sum in Binary Tree bitmasks combinatorics math trees *800	0 / 0	3
	289	codeforces#P1843D Apple Tree combinatorics dfs and similar dp math trees *1200	0 / 0	4
	288	codeforces#P1843E Tracking Segments binary search brute force data structures two pointers *1600	0 / 0	5
	287	codeforces#P1843F1 Omsk Metro (simple version) data structures dfs and similar dp graphs greedy math trees *1800	0 / 0	6
	286	codeforces#P1843F2 Omsk Metro (hard version) data structures dfs and similar divide and conquer dp math trees *2300	0 / 0	8
	285	codeforces#P1844A Subtraction Game constructive algorithms games *800	0 / 0	3
	284	codeforces#P1844B Permutations & Primes constructive algorithms math *1000	0 / 0	3
	283	codeforces#P1844C Particles dp greedy implementation math *1300	0 / 0	4
	282	codeforces#P1844D Row Major constructive algorithms greedy math number theory strings *1400	0 / 0	4
	281	codeforces#P1844E Great Grids 2-sat constructive algorithms dfs and similar dsu graphs *2400	0 / 0	9
	280	codeforces#P1844F1 Min Cost Permutation (Easy Version) brute force constructive algorithms greedy math *2600	0 / 0	10
	279	codeforces#P1844F2 Min Cost Permutation (Hard Version) binary search constructive algorithms data structures greedy math sortings *2800	0 / 0	10
	278	codeforces#P1844G Tree Weights bitmasks constructive algorithms data structures dfs and similar implementation math matrices number theory trees *3000	0 / 0	10
	277	codeforces#P1844H Multiple of Three Cycles combinatorics data structures dp dsu math *3400	0 / 0	10
	276	codeforces#P1845A Forbidden Integer constructive algorithms implementation math number theory *800	0 / 0	3
	275	codeforces#P1845B Come Together geometry implementation math *900	0 / 0	3
	274	codeforces#P1845C Strong Password binary search dp greedy strings *1400	0 / 0	4
	273	codeforces#P1845D Rating System binary search brute force data structures dp dsu greedy math two pointers *1800	0 / 0	6
	272	codeforces#P1845E Boxes and Balls dp implementation math *2500	0 / 0	9
	271	codeforces#P1845F Swimmers in the Pool dp fft math number theory *2800	0 / 0	10
	270	codeforces#P1846A Rudolph and Cut the Rope implementation math *800	0 / 0	3
	269	codeforces#P1846B Rudolph and Tic-Tac-Toe brute force implementation strings *800	0 / 0	3
	268	codeforces#P1846C Rudolf and the Another Competition constructive algorithms data structures dp greedy sortings *1200	0 / 0	4
	267	codeforces#P1846D Rudolph and Christmas Tree constructive algorithms geometry math *1200	0 / 0	4
	266	codeforces#P1846E1 Rudolf and Snowflakes (simple version) brute force implementation math *1300	0 / 0	4
	265	codeforces#P1846E2 Rudolf and Snowflakes (hard version) binary search brute force implementation math *1800	0 / 0	6
	264	codeforces#P1846F Rudolph and Mimic constructive algorithms implementation interactive *1800	0 / 0	6
	263	codeforces#P1846G Rudolf and CodeVid-23 bitmasks dp graphs greedy shortest paths *1900	0 / 0	6
	262	codeforces#P1847A The Man who became a God greedy sortings *800	0 / 0	3
	261	codeforces#P1847B Hamon Odyssey bitmasks greedy two pointers *1000	0 / 0	3
	260	codeforces#P1847C Vampiric Powers, anyone? bitmasks brute force dp greedy *1400	0 / 0	4
	259	codeforces#P1847D Professor Higashikata data structures dsu greedy implementation strings *1900	0 / 0	6
	258	codeforces#P1847E Triangle Platinum? brute force combinatorics implementation interactive math probabilities *2900	0 / 0	10
	257	codeforces#P1847F The Boss's Identity binary search bitmasks data structures dfs and similar greedy math sortings *2500	0 / 0	9

Pick a problem randomly based on the current filter.