Problemset - Codeforces

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Problems

#	Name
1239A	Ivan the Fool and the Probability Theory combinatorics, dp, math	1700	x7363
1238G	Adilbek and the Watering System data structures, greedy, sortings	2700	x410
1238F	The Maximum Subtree dfs and similar, dp, graphs, trees	2200	x1875
1238E	Keyboard Purchase bitmasks, dp	2200	x2969
1238D	AB-string binary search, combinatorics, dp, strings	1900	x5982
1238C	Standard Free2play dp, greedy, math	1600	x7416
1237H	Balanced Reversals constructive algorithms	3300	x371
1237G	Balanced Distribution data structures, dp, greedy	3500	x123
1237F	Balanced Domino Placements combinatorics, dp	2600	x881
1237E	Balanced Binary Search Trees dp, math	2400	x1326
1237D	Balanced Playlist binary search, data structures, implementation	2000	x4194
1237C2	Balanced Removals (Harder) binary search, constructive algorithms, divide and conquer, greedy, implementation, sortings	1900	x4334
1237C1	Balanced Removals (Easier) constructive algorithms, geometry, greedy	1700	x6083
1236F	Alice and the Cactus dfs and similar, graphs, math, probabilities	3000	x177
1236E	Alice and the Unfair Game binary search, data structures, dp, dsu	2500	x659
1236D	Alice and the Doll brute force, data structures, greedy, implementation	2300	x1671
1236B	Alice and the List of Presents combinatorics, math	1500	x11047
1234F	Yet Another Substring Reverse bitmasks, dp	2200	x2585
1234E	Special Permutations math	2000	x2784
1234D	Distinct Characters Queries data structures	1600	x14998
1234C	Pipes dp, implementation	1500	x12594
1231E	Middle-Out constructive algorithms, greedy, strings	2200	x838
1228F	One Node is Gone constructive algorithms, implementation, trees	2500	x437
1228E	Another Filling the Grid combinatorics, dp, math	2300	x2731
1228D	Complete Tripartite brute force, constructive algorithms, graphs, hashing, implementation	1900	x5208
1228C	Primes and Multiplication math, number theory	1700	x9026
1228B	Filling the Grid implementation, math	1400	x11512
1227G	Not Same constructive algorithms	2600	x1025
1227F2	Wrong Answer on test 233 (Hard Version) combinatorics, math	2400	x1505
1227F1	Wrong Answer on test 233 (Easy Version) dp	2200	x1807
1227E	Arson In Berland Forest binary search, graphs, graphs, shortest paths	2200	x1485
1227D2	Optimal Subsequences (Hard Version) data structures, greedy	1800	x4332
1227D1	Optimal Subsequences (Easy Version) data structures, greedy	1600	x6400
1227C	Messy constructive algorithms	1700	x5521
1225G	To Make 1 bitmasks, constructive algorithms, dp, greedy, number theory	3100	x546
1225F	Tree Factory constructive algorithms, greedy, trees	2500	x884
1225E	Rock Is Push binary search, dp	2200	x1888
1225D	Power Products hashing, math, number theory	1800	x7973
1225C	p-binary bitmasks, brute force, math	1600	x8952
1223G	Wooden Raft binary search, math, number theory	3200	x250
1223F	Stack Exterminable Arrays data structures, divide and conquer, dp, hashing	2600	x2051
1223E	Paint the Tree dp, sortings, trees	2100	x2606
1223D	Sequence Sorting dp, greedy, two pointers	2000	x4034
1223C	Save the Nature binary search, greedy	1600	x8315
1221G	Graph And Numbers bitmasks, brute force, combinatorics, dp, meet-in-the-middle	2900	x661
1221F	Choose a Square binary search, data structures, sortings	2400	x1050
1221E	Game With String games	2500	x1087
1221D	Make The Fence Great Again dp	1800	x9075
1220G	Geolocation geometry	3400	x54
1220F	Gardener Alex binary search, data structures	2700	x695
1220E	Tourism dfs and similar, dp, dsu, graphs, greedy, trees	2200	x2760
1220D	Alex and Julian bitmasks, math, number theory	1900	x3894
1219G	Harvester implementation	2000	x656
1219C	Periodic integer number implementation, strings	1700	x1783
1218I	The Light Square 2-sat, dfs and similar, greedy	2100	x598
1218H	Function Composition dfs and similar	2900	x115
1218G	Alpha planetary system constructive algorithms, graphs, shortest paths	3000	x100
1218F	Workout plan data structures, greedy	1500	x2938
1218E	Product Tuples divide and conquer, fft	2500	x377
1218D	Xor Spanning Tree divide and conquer, fft, graphs	2400	x498
1218C	Jumping Transformers dp	2600	x180
1218B	Guarding warehouses data structures, geometry	3000	x70
1218A	BubbleReactor dp, graphs	2800	x131
1217F	Forced Online Queries Problem data structures, divide and conquer, dsu, graphs, trees	2600	x586
1217E	Sum Queries? data structures, greedy, implementation, math	2300	x1879
1217D	Coloring Edges constructive algorithms, dfs and similar, graphs	2100	x5288
1217C	The Number Of Good Substrings binary search, bitmasks, brute force	1700	x7449
1217B	Zmei Gorynich greedy, math	1600	x11200
1216F	Wi-Fi data structures, dp, greedy	2100	x2608
1216E2	Numerical Sequence (hard version) binary search, math	2200	x1460
1216E1	Numerical Sequence (easy version) binary search, brute force, math	1900	x3441
1216C	White Sheet geometry, math	1700	x9209
1215F	Radio Stations 2-sat	2700	x973
1215E	Marbles bitmasks, dp	2200	x3026
1215D	Ticket Game games, greedy, math	1700	x6148
1215C	Swap Letters constructive algorithms, greedy	1500	x11190
1215B	The Number of Products combinatorics, dp, implementation	1400	x12948
1214H	Tiles Placement constructive algorithms, dfs and similar, trees	2800	x391
1214G	Feeling Good bitmasks, data structures	3200	x299
1214F	Employment greedy, sortings	2700	x430
1214E	Petya and Construction Set constructive algorithms, graphs, math, sortings, trees	2000	x2697
1214D	Treasure Island dfs and similar, dp, flows, hashing	1900	x5176
1214A	Optimal Currency Exchange brute force, math	1400	x9089
1213G	Path Queries divide and conquer, dsu, graphs, sortings, trees	1800	x7233
1213F	Unstable String Sort data structures, dfs and similar, dsu, graphs, greedy, implementation, strings	2100	x2594
1213E	Two Small Strings brute force, constructive algorithms	1900	x5166
1213D2	Equalizing by Division (hard version) brute force, math, sortings	1600	x11432
1213D1	Equalizing by Division (easy version) brute force, implementation	1500	x11377
1211I	Unusual Graph *special problem, graphs	3000	x40
1211H	Road Repair in Treeland *special problem, binary search, dp, trees	3100	x45
1211G	King's Path *special problem, math, trees	2500	x71
1211F	kotlinkotlinkotlinkotlin... *special problem, graphs, implementation, strings	2300	x124
1211E	Double Permutation Inc. *special problem, binary search, greedy	2000	x193
1211D	Teams *special problem, binary search, greedy, math	2000	x229
1211C	Ice Cream *special problem, greedy, sortings	1700	x486
1211B	Traveling Around the Golden Ring of Berland *special problem, implementation	1500	x763
1210G	Mateusz and Escape Room dp	3500	x168
1210F2	Marek and Matching (hard version) brute force, probabilities	3200	x213
1210F1	Marek and Matching (easy version) brute force, probabilities	3100	x205
1210E	Wojtek and Card Tricks math	2700	x406