11,311/11,320 captured·📄 81 PDFs⊘ 0 skipped9 remaining100%

Problemset

92 problems · filtered by 2 tags

#	Name	Rating↕	Solved↕
2249B	Permutation Cuts combinatorics implementation math	unrated	2.9k
2228E2	Amanojaku and Sequence (Hard Version) combinatorics data structures implementation math	2500	307
2183D2	Tree Coloring (Hard Version) combinatorics constructive algorithms data structures dfs and similar greedy implementation trees	2100	2.6k
2180G	Balance bitmasks combinatorics implementation math	3500	154
2161E	Left is Always Right combinatorics implementation math	2400	803
2154F1	Bombing (Easy Version) brute force combinatorics constructive algorithms implementation math	2700	594
2150B	Grid Counting combinatorics implementation math	1700	7.5k
2150G	Counting Is Fun: The Finale combinatorics implementation	3500	248
2138D	Antiamuny and Slider Movement brute force combinatorics implementation math sortings	2600	682
2129D	Permutation Blackhole brute force combinatorics dp implementation math	2600	2.5k
2097B	Baggage Claim combinatorics dfs and similar dp dsu graphs implementation math trees	2300	2k
2084E	Blossom binary search combinatorics dp implementation math two pointers	2400	1.8k
2081E	Quantifier combinatorics dp implementation	3300	89
2075E	XOR Matrix bitmasks combinatorics dp implementation math	2500	1.2k
2063F1	Counting Is Not Fun (Easy Version) combinatorics data structures dfs and similar dp dsu graphs hashing implementation math trees	2400	1.6k
2063F2	Counting Is Not Fun (Hard Version) combinatorics data structures dfs and similar dsu graphs implementation trees	2700	951
2043F	Nim bitmasks brute force combinatorics dp games greedy implementation shortest paths	2700	918
2039E	Shohag Loves Inversions combinatorics dp implementation math	2200	2.4k
2030E	MEXimize the Score combinatorics data structures dp greedy implementation math	2200	2k
2006F	Dora's Paint brute force combinatorics constructive algorithms graphs implementation	3500	173
1996E	Decode combinatorics data structures implementation math	1600	12.9k
1976D	Invertible Bracket Sequences binary search combinatorics data structures divide and conquer implementation two pointers	2000	5.9k
1935D	Exam in MAC binary search combinatorics implementation math	1800	11k
1928F	Digital Patterns combinatorics data structures implementation math	2900	479
1919E	Counting Prefixes combinatorics constructive algorithms dp implementation math	2600	1.2k
1917D	Yet Another Inversions Problem combinatorics data structures dp implementation math number theory	2300	2.1k
1868C	Travel Plan combinatorics dp implementation math trees	2400	1.4k
1864G	Magic Square combinatorics constructive algorithms implementation	3100	358
1861E	Non-Intersecting Subpermutations combinatorics dp implementation math	2300	2.1k
1850G	The Morning Star combinatorics data structures geometry implementation math sortings	1500	15.8k
1847E	Triangle Platinum? brute force combinatorics implementation interactive math probabilities	2900	398
1833F	Ira and Flamenco combinatorics constructive algorithms data structures implementation math sortings two pointers	1700	10.6k
1789C	Serval and Toxel's Arrays combinatorics dp implementation math	1500	10.1k
1787D	Game on Axis combinatorics dfs and similar dsu graphs implementation	1900	3.9k
1763D	Valid Bitonic Permutations combinatorics dp implementation math number theory	2200	2.4k
1743A	Password brute force combinatorics implementation math	800	29.9k
1732A	Bestie brute force combinatorics constructive algorithms implementation math number theory	1000	17.8k
1715C	Monoblock combinatorics data structures implementation math	1700	10.6k
1701F	Points combinatorics data structures implementation math matrices	2500	1.2k
1697E	Coloring brute force combinatorics constructive algorithms dp geometry graphs greedy implementation math	2400	1.5k
1696H	Maximum Product? brute force combinatorics dp greedy implementation math two pointers	3500	215
1674C	Infinite Replacement combinatorics implementation strings	1000	26.6k
1666F	Fancy Stack combinatorics dp implementation	2200	1.6k
1648C	Tyler and Strings combinatorics data structures implementation	1900	3.4k
1644E	Expand the Path brute force combinatorics data structures implementation math	1900	3.5k
1608F	MEX counting combinatorics dp implementation	3200	913
1603F	October 18, 2017 combinatorics dp implementation math	2700	402
1598D	Training Session combinatorics data structures geometry implementation math	1700	10.7k
1598E	Staircases brute force combinatorics data structures dfs and similar dp implementation math	2100	2.5k
1574E	Coloring combinatorics constructive algorithms implementation math	2500	1.1k
1550D	Excellent Arrays binary search combinatorics constructive algorithms implementation math sortings two pointers	2300	2.1k
1542D	Priority Queue combinatorics dp implementation math ternary search	2200	3k
1527D	MEX Tree combinatorics dfs and similar implementation math trees	2400	2.3k
1508B	Almost Sorted binary search combinatorics constructive algorithms implementation	1800	4.5k
1470E	Strange Permutation binary search combinatorics data structures dp graphs implementation two pointers	3200	981
1462E2	Close Tuples (hard version) binary search combinatorics implementation math sortings two pointers	1700	11.6k
1450H2	Multithreading (Hard Version) combinatorics implementation math	3300	333
1442B	Identify the Operations combinatorics data structures dsu greedy implementation	1800	5.4k
1403C	Chess Rush *special combinatorics dp implementation math	3200	95
1328B	K-th Beautiful String binary search brute force combinatorics implementation math	1300	32.4k
1307E	Cow and Treats binary search combinatorics dp greedy implementation math	2500	1.5k
1284B	New Year and Ascent Sequence binary search combinatorics data structures dp implementation sortings	1400	11.6k
1272C	Yet Another Broken Keyboard combinatorics dp implementation	1200	31.3k
1215B	The Number of Products combinatorics dp implementation	1400	19.4k
1181C	Flag brute force combinatorics dp implementation	1900	3.4k
1084C	The Fair Nut and String combinatorics dp implementation	1500	12.4k
817B	Makes And The Product combinatorics implementation math sortings	1500	6.5k
804B	Minimum number of steps combinatorics greedy implementation math	1400	10.3k
696C	PLEASE combinatorics dp implementation math matrices	2000	2.3k
689E	Mike and Geometry Problem combinatorics data structures dp geometry implementation	2000	2.3k
677C	Vanya and Label bitmasks combinatorics implementation strings	1500	7k
629A	Far Relative’s Birthday Cake brute force combinatorics constructive algorithms implementation	800	14.9k
621B	Wet Shark and Bishops combinatorics implementation	1300	11.7k
571A	Lengthening Sticks combinatorics implementation math	2100	2.7k
553B	Kyoya and Permutation binary search combinatorics constructive algorithms greedy implementation math	1900	2.3k
551D	GukiZ and Binary Operations combinatorics implementation math matrices number theory	2100	2.1k
535B	Tavas and SaDDas bitmasks brute force combinatorics implementation	1100	27k
518F	Pasha and Pipe binary search brute force combinatorics dp implementation	2300	442
501E	Misha and Palindrome Degree binary search combinatorics implementation	2500	982
459B	Pashmak and Flowers combinatorics implementation sortings	1300	48.5k
407C	Curious Array brute force combinatorics implementation math	2500	1.2k
364A	Matrix combinatorics data structures implementation	1600	5k
356C	Compartments combinatorics constructive algorithms greedy implementation	2100	1.4k
353B	Two Heaps combinatorics constructive algorithms greedy implementation math sortings	1900	2.4k
340C	Tourist Problem combinatorics implementation math	1600	4.7k
336E	Vasily the Bear and Painting Square bitmasks combinatorics dp implementation	2700	158
285D	Permutation Sum bitmasks combinatorics dp implementation meet-in-the-middle	1900	1.7k
235E	Number Challenge combinatorics dp implementation math number theory	2600	963
145D	Lucky Pair combinatorics data structures implementation	2900	301
124B	Permutations brute force combinatorics implementation	1400	5k
113E	Sleeping combinatorics implementation math	2700	184
26C	Parquet combinatorics constructive algorithms greedy implementation	2000	1.1k

showing 1–92 of 92