Problemset - Codeforces

Problems

#	Name
1279D	Santa's Bot combinatorics, math, probabilities	1700	x6409
1279C	Stack of Presents data structures, implementation	1400	x11770
1278C	Berry Jam data structures, dp, greedy, implementation	1700	x8100
1278B	A and B greedy, math	1500	x13391
1276A	As Simple as One and Two dp, greedy	1400	x12380
1272D	Remove One Element brute force, dp	1500	x16832
1270C	Make Good bitmasks, constructive algorithms, math	1400	x14172
1269B	Modulo Equality brute force, sortings	1500	x9193
1268A	Long Beautiful Integer constructive algorithms, greedy, implementation, strings	1700	x8681
1267L	Lexicography constructive algorithms, strings	1800	x3118
1267J	Just Arrange the Icons greedy, implementation, math	1800	x2873
1267E	Elections greedy	1700	x3304
1266C	Diverse Matrix constructive algorithms, greedy, math, number theory	1400	x9728
1264A	Beautiful Regional Contest greedy, implementation	1500	x10121
1263D	Secret Passwords dfs and similar, dsu, graphs	1500	x14184
1263C	Everyone is a Winner! binary search, math, meet-in-the-middle, number theory	1400	x13799
1263B	PIN Codes greedy, implementation	1400	x11403
1260C	Infinite Fence greedy, math, number theory	1700	x8274
1257D	Yet Another Monster Killing Problem binary search, data structures, dp, greedy, sortings, two pointers	1700	x7622
1256D	Binary String Minimizing greedy	1500	x12144
1256C	Platforms Jumping greedy	1700	x6933
1256B	Minimize the Permutation greedy	1400	x13140
1255C	League of Leesins constructive algorithms, implementation	1600	x6729
1254B1	Send Boxes to Alice (Easy Version) constructive algorithms, greedy, math, number theory, ternary search, two pointers	1800	x4695
1254A	Feeding Chicken constructive algorithms, greedy, implementation	1700	x5251
1253D	Harmonious Graph constructive algorithms, dfs and similar, dsu, graphs, greedy, sortings	1700	x9323
1253C	Sweets Eating dp, greedy, math, sortings	1500	x14377
1253B	Silly Mistake greedy, implementation	1400	x11231
1252H	Twin Buildings greedy, implementation	1800	x2691
1252C	Even Path data structures, implementation	1600	x3754
1251C	Minimize The Integer greedy, two pointers	1600	x12529
1251B	Binary Palindromes greedy, strings	1400	x11030
1250L	Divide The Students binary search, greedy, math	1500	x4131
1250J	The Parade binary search, greedy	1800	x2970
1250H	Happy Birthday math	1500	x4068
1250B	The Feast and the Bus brute force, constructive algorithms, greedy, math	1800	x2619
1250A	Berstagram implementation	1400	x4091
1249E	By Elevator or Stairs? dp, shortest paths	1700	x9802
1249D2	Too Many Segments (hard version) data structures, greedy, sortings	1800	x5315
1249D1	Too Many Segments (easy version) greedy	1800	x5141
1249C2	Good Numbers (hard version) binary search, greedy, math, meet-in-the-middle	1500	x12712
1245C	Constanze's Machine dp	1400	x17720
1244D	Paint the Tree brute force, constructive algorithms, dp, graphs, implementation, trees	1800	x7628
1243B2	Character Swap (Hard Version) strings	1600	x7112
1242A	Tile Painting constructive algorithms, math, number theory	1500	x12671
1239A	Ivan the Fool and the Probability Theory combinatorics, dp, math	1700	x7380
1238C	Standard Free2play dp, greedy, math	1600	x7450
1237C1	Balanced Removals (Easier) constructive algorithms, geometry, greedy	1700	x6115
1236B	Alice and the List of Presents combinatorics, math	1500	x11146
1234D	Distinct Characters Queries data structures	1600	x15361
1234C	Pipes dp, implementation	1500	x12677
1228C	Primes and Multiplication math, number theory	1700	x9081
1228B	Filling the Grid implementation, math	1400	x11562
1227D2	Optimal Subsequences (Hard Version) data structures, greedy	1800	x4411
1227D1	Optimal Subsequences (Easy Version) data structures, greedy	1600	x6453
1227C	Messy constructive algorithms	1700	x5538
1225D	Power Products hashing, math, number theory	1800	x8168
1225C	p-binary bitmasks, brute force, math	1600	x9038
1223C	Save the Nature binary search, greedy	1600	x8393
1221D	Make The Fence Great Again dp	1800	x9199
1219C	Periodic integer number implementation, strings	1700	x1802
1218F	Workout plan data structures, greedy	1500	x2970
1217C	The Number Of Good Substrings binary search, bitmasks, brute force	1700	x7482
1217B	Zmei Gorynich greedy, math	1600	x11302
1216C	White Sheet geometry, math	1700	x9331
1215D	Ticket Game games, greedy, math	1700	x6207
1215C	Swap Letters constructive algorithms, greedy	1500	x11289
1215B	The Number of Products combinatorics, dp, implementation	1400	x13192
1214A	Optimal Currency Exchange brute force, math	1400	x9124
1213G	Path Queries divide and conquer, dsu, graphs, sortings, trees	1800	x7406
1213D2	Equalizing by Division (hard version) brute force, math, sortings	1600	x11489
1213D1	Equalizing by Division (easy version) brute force, implementation	1500	x11433
1211C	Ice Cream *special problem, greedy, sortings	1700	x489
1211B	Traveling Around the Golden Ring of Berland *special problem, implementation	1500	x765
1210B	Marcin and Training Camp brute force, greedy	1700	x5833
1210A	Anadi and Domino brute force, graphs	1700	x5172
1209D	Cow and Snacks dfs and similar, dsu, graphs	1700	x9471
1209C	Paint the Digits constructive algorithms, greedy, implementation	1500	x7541
1208C	Magic Grid constructive algorithms	1800	x6052
1208B	Uniqueness binary search, brute force, implementation, two pointers	1500	x10604
1207D	Number Of Permutations combinatorics	1800	x6119
1207C	Gas Pipeline dp, greedy	1500	x9887
1204C	Anna, Svyatoslav and Maps dp, graphs, greedy, shortest paths	1700	x6738
1203E	Boxers greedy, sortings	1500	x13920
1203D2	Remove the Substring (hard version) binary search, greedy, implementation, two pointers	1700	x7468
1203D1	Remove the Substring (easy version) greedy, implementation	1600	x8841
1202B	You Are Given a Decimal String... brute force, dp, shortest paths	1700	x4579
1201C	Maximum Median binary search, greedy, math, sortings	1400	x24220
1201B	Zero Array greedy, math	1500	x19162
1200C	Round Corridor math, number theory	1400	x9914
1198B	Welfare State binary search, brute force, data structures, sortings	1600	x9504
1198A	MP3 sortings, two pointers	1600	x9049
1197C	Array Splitting greedy, sortings	1400	x13976
1196E	Connected Component on a Chessboard constructive algorithms, implementation	1800	x3747
1196D2	RGB Substring (hard version) data structures, dp, implementation, two pointers	1600	x9761
1196D1	RGB Substring (easy version) implementation	1500	x10587
1196C	Robot Breakout implementation	1500	x9365
1195D2	Submarine in the Rybinsk Sea (hard edition) combinatorics, math, number theory	1800	x4675
1195D1	Submarine in the Rybinsk Sea (easy edition) combinatorics, math, number theory	1500	x7905
1195C	Basketball Exercise dp	1400	x26535