Problemset - Codeforces

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Codeforces Round 987 (Div. 2)
06:10:20
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Problems

#	Name
1225A	Forgetting Things math	900	x15858
1223G	Wooden Raft binary search, math, number theory	3200	x250
1223F	Stack Exterminable Arrays data structures, divide and conquer, dp, hashing	2600	x2073
1223E	Paint the Tree dp, sortings, trees	2100	x2622
1223D	Sequence Sorting dp, greedy, two pointers	2000	x4074
1223C	Save the Nature binary search, greedy	1600	x8377
1223B	Strings Equalization strings	1000	x14977
1223A	CME math	800	x21655
1221G	Graph And Numbers bitmasks, brute force, combinatorics, dp, meet-in-the-middle	2900	x765
1221F	Choose a Square binary search, data structures, sortings	2400	x1061
1221E	Game With String games	2500	x1095
1221D	Make The Fence Great Again dp	1800	x9185
1221C	Perfect Team binary search, math	1200	x21294
1221B	Knights constructive algorithms, greedy	1100	x11985
1221A	2048 Game brute force, greedy, math	1000	x16975
1220G	Geolocation geometry	3400	x54
1220F	Gardener Alex binary search, data structures	2700	x719
1220E	Tourism dfs and similar, dp, dsu, graphs, greedy, trees	2200	x2789
1220D	Alex and Julian bitmasks, math, number theory	1900	x3920
1220C	Substring Game in the Lesson games, greedy, strings	1300	x10291
1220B	Multiplication Table math, number theory	1300	x11655
1220A	Cards implementation, sortings, strings	800	x29971
1219G	Harvester implementation	2000	x670
1219C	Periodic integer number implementation, strings	1700	x1792
1218I	The Light Square 2-sat, dfs and similar, greedy	2100	x609
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	x2968
1218E	Product Tuples divide and conquer, fft	2500	x382
1218D	Xor Spanning Tree divide and conquer, fft, graphs	2400	x504
1218C	Jumping Transformers dp	2600	x183
1218B	Guarding warehouses data structures, geometry	3000	x73
1218A	BubbleReactor dp, graphs	2800	x131
1217F	Forced Online Queries Problem data structures, divide and conquer, dsu, graphs, trees	2600	x595
1217E	Sum Queries? data structures, greedy, implementation, math	2300	x1895
1217D	Coloring Edges constructive algorithms, dfs and similar, graphs	2100	x5383
1217C	The Number Of Good Substrings binary search, bitmasks, brute force	1700	x7478
1217B	Zmei Gorynich greedy, math	1600	x11293
1217A	Creating a Character binary search, math	1300	x15052
1216F	Wi-Fi data structures, dp, greedy	2100	x2700
1216E2	Numerical Sequence (hard version) binary search, math	2200	x1487
1216E1	Numerical Sequence (easy version) binary search, brute force, math	1900	x3461
1216D	Swords math	1300	x11175
1216C	White Sheet geometry, math	1700	x9320
1216B	Shooting greedy, implementation, sortings	900	x18513
1216A	Prefixes strings	800	x18736
1215F	Radio Stations 2-sat	2700	x993
1215E	Marbles bitmasks, dp	2200	x3058
1215D	Ticket Game games, greedy, math	1700	x6202
1215C	Swap Letters constructive algorithms, greedy	1500	x11277
1215B	The Number of Products combinatorics, dp, implementation	1400	x13153
1215A	Yellow Cards greedy, implementation, math	1000	x11592
1214H	Tiles Placement constructive algorithms, dfs and similar, trees	2800	x397
1214G	Feeling Good bitmasks, data structures	3200	x311
1214F	Employment greedy, sortings	2700	x451
1214E	Petya and Construction Set constructive algorithms, graphs, math, sortings, trees	2000	x2708
1214D	Treasure Island dfs and similar, dp, flows, hashing	1900	x5210
1214C	Bad Sequence data structures, greedy	1200	x13323
1214B	Badges brute force, math	1100	x10879
1214A	Optimal Currency Exchange brute force, math	1400	x9122
1213G	Path Queries divide and conquer, dsu, graphs, sortings, trees	1800	x7388
1213F	Unstable String Sort data structures, dfs and similar, dsu, graphs, greedy, implementation, strings	2100	x2610
1213E	Two Small Strings brute force, constructive algorithms	1900	x5203
1213D2	Equalizing by Division (hard version) brute force, math, sortings	1600	x11481
1213D1	Equalizing by Division (easy version) brute force, implementation	1500	x11429
1213C	Book Reading math	1200	x18537
1213B	Bad Prices data structures, implementation	1100	x26889
1213A	Chips Moving math	900	x24159
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	x194
1211D	Teams *special problem, binary search, greedy, math	2000	x230
1211C	Ice Cream *special problem, greedy, sortings	1700	x489
1211B	Traveling Around the Golden Ring of Berland *special problem, implementation	1500	x764
1211A	Three Problems *special problem, implementation	1000	x1425
1210G	Mateusz and Escape Room dp	3500	x176
1210F2	Marek and Matching (hard version) brute force, probabilities	3200	x215
1210F1	Marek and Matching (easy version) brute force, probabilities	3100	x206
1210E	Wojtek and Card Tricks math	2700	x408
1210D	Konrad and Company Evaluation graphs	2400	x1518
1210C	Kamil and Making a Stream math, number theory, trees	2000	x3354
1210B	Marcin and Training Camp brute force, greedy	1700	x5832
1210A	Anadi and Domino brute force, graphs	1700	x5172
1209H	Moving Walkways data structures, greedy, math	3300	x142
1209G2	Into Blocks (hard version) data structures	3200	x449
1209G1	Into Blocks (easy version) data structures, dsu, greedy, implementation, two pointers	2000	x3260
1209F	Koala and Notebook data structures, dfs and similar, graphs, shortest paths, strings, trees	2600	x1181
1209E2	Rotate Columns (hard version) bitmasks, dp, greedy, sortings	2500	x1984
1209E1	Rotate Columns (easy version) bitmasks, brute force, dp, greedy, sortings	2000	x2985
1209D	Cow and Snacks dfs and similar, dsu, graphs	1700	x9465
1209C	Paint the Digits constructive algorithms, greedy, implementation	1500	x7538
1209B	Koala and Lights implementation, math, number theory	1300	x8179
1209A	Paint the Numbers greedy, implementation, math	800	x12239
1208H	Red Blue Tree data structures, implementation, trees	3500	x153
1208G	Polygons greedy, math, number theory	2800	x771
1208F	Bits And Pieces bitmasks, dfs and similar, dp, greedy	2600	x2536
1208E	Let Them Slide data structures, implementation	2200	x2045
1208D	Restore Permutation binary search, data structures, greedy, implementation	1900	x4942