Problemset - Codeforces

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Codeforces Round #671 (Div. 2)
07:47:32
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constructive algorithms

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Problems

#	Name
1276E	Four Stones constructive algorithms	3500	x30
1349E	Slime and Hats constructive algorithms, dp, greedy	3500	x32
1270I	Xor on Figures constructive algorithms, fft, math	3500	x84
1264F	Beautiful Fibonacci Problem constructive algorithms, number theory	3500	x86
1053E	Euler tour constructive algorithms, trees	3500	x101
1292E	Rin and The Unknown Flower constructive algorithms, greedy, interactive, math	3500	x113
1267C	Cactus Revenge constructive algorithms	3500	x330
1280F	Intergalactic Sliding Puzzle combinatorics, constructive algorithms, math	3400	x31
1205F	Beauty of a Permutation constructive algorithms, math	3400	x47
1078E	Negative Time Summation constructive algorithms	3400	x56
1097E	Egor and an RPG game constructive algorithms, greedy	3400	x252
737F	Dirty plates constructive algorithms, math	3300	x45
1054G	New Road Network constructive algorithms, greedy, math	3300	x83
1060H	Sophisticated Device constructive algorithms	3300	x94
1237H	Balanced Reversals constructive algorithms	3300	x99
1148G	Gold Experience constructive algorithms, graphs, math, number theory, probabilities	3300	x110
1375H	Set Merging constructive algorithms, divide and conquer	3300	x122
923F	Public Service constructive algorithms, graphs, trees	3200	x39
1267H	Help BerLine constructive algorithms	3200	x43
1045E	Ancient civilizations constructive algorithms, geometry	3200	x51
1242E	Planar Perimeter constructive algorithms, graphs	3200	x54
933E	A Preponderant Reunion constructive algorithms, dp	3200	x102
1396E	Distance Matching constructive algorithms, dfs and similar, trees	3200	x122
543E	Listening to Music constructive algorithms, data structures	3200	x132
1025G	Company Acquisitions constructive algorithms, math	3200	x196
566E	Restoring Map bitmasks, constructive algorithms, trees	3200	x238
611H	New Year and Forgotten Tree constructive algorithms, flows, graphs	3200	x262
1336D	Yui and Mahjong Set constructive algorithms, interactive	3200	x308
720C	Homework constructive algorithms	3100	x50
331E2	Deja Vu constructive algorithms, dp	3100	x83
1168E	Xor Permutations constructive algorithms, math	3100	x86
1286F	Harry The Potter brute force, constructive algorithms, dp, fft, implementation, math	3100	x93
317E	Princess and Her Shadow constructive algorithms, shortest paths	3100	x99
830E	Perpetual Motion Machine constructive algorithms, dp, graphs, implementation, math, trees	3100	x118
715D	Create a Maze constructive algorithms	3100	x138
1329D	Dreamoon Likes Strings constructive algorithms, data structures	3100	x156
1225G	To Make 1 bitmasks, constructive algorithms, dp, greedy, number theory	3100	x165
1119G	Get Ready for the Battle constructive algorithms, implementation	3100	x173
804E	The same permutation constructive algorithms	3100	x207
538G	Berserk Robot constructive algorithms, math, sortings	3100	x233
1110G	Tree-Tac-Toe constructive algorithms, games, trees	3100	x271
1218G	Alpha planetary system constructive algorithms, graphs, shortest paths	3000	x19
457E	Flow Optimality constructive algorithms, flows, math	3000	x36
1070M	Algoland and Berland constructive algorithms, divide and conquer, geometry	3000	x41
788D	Finding lines constructive algorithms, divide and conquer, interactive	3000	x159
1063E	Lasers and Mirrors constructive algorithms, math	3000	x161
798E	Mike and code of a permutation constructive algorithms, data structures, graphs, sortings	3000	x200
341E	Candies Game constructive algorithms, greedy	3000	x238
1290D	Coffee Varieties (hard version) constructive algorithms, graphs, interactive	3000	x278
618F	Double Knapsack constructive algorithms, two pointers	3000	x506
1019C	Sergey's problem constructive algorithms, graphs	3000	x592
331E1	Deja Vu constructive algorithms, graphs, implementation	2900	x70
736E	Chess Championship constructive algorithms, flows, greedy, math	2900	x137
815E	Karen and Neighborhood binary search, constructive algorithms, implementation	2900	x157
793E	Problem of offices constructive algorithms, dfs and similar, dp, trees	2900	x157
1288F	Red-Blue Graph constructive algorithms, flows	2900	x188
512E	Fox And Polygon constructive algorithms, divide and conquer	2900	x221
1172D	Nauuo and Portals constructive algorithms	2900	x275
48H	Black and White constructive algorithms	2800	x80
472E	Design Tutorial: Learn from a Game constructive algorithms, implementation	2800	x99
74E	Shift It! constructive algorithms	2800	x101
1379E	Inverse Genealogy constructive algorithms, divide and conquer, dp, math, trees	2800	x122
1267D	DevOps Best Practices constructive algorithms	2800	x134
1012D	AB-Strings constructive algorithms, strings	2800	x185
652F	Ants on a Circle constructive algorithms, math	2800	x200
850D	Tournament Construction constructive algorithms, dp, graphs, greedy, math	2800	x216
819E	Mister B and Flight to the Moon constructive algorithms, graphs	2800	x226
1214H	Tiles Placement constructive algorithms, dfs and similar, trees	2800	x231
776F	Sherlock's bet to Moriarty constructive algorithms, data structures, divide and conquer, geometry, graphs, implementation, trees	2800	x264
1383D	Rearrange brute force, constructive algorithms, graphs, greedy, sortings	2800	x280
1033E	Hidden Bipartite Graph binary search, constructive algorithms, dfs and similar, graphs, interactive	2800	x297
750F	New Year and Finding Roots constructive algorithms, implementation, interactive, trees	2800	x315
1286C2	Madhouse (Hard version) brute force, constructive algorithms, hashing, interactive, math	2800	x358
30E	Tricky and Clever Password binary search, constructive algorithms, data structures, greedy, hashing, strings	2800	x398
1404D	Game of Pairs constructive algorithms, dfs and similar, interactive, math, number theory	2800	x399
1365G	Secure Password bitmasks, combinatorics, constructive algorithms, interactive, math	2800	x442
286E	Ladies' Shop constructive algorithms, fft, math	2800	x570
1375G	Tree Modification brute force, constructive algorithms, dfs and similar, graph matchings, graphs, trees	2800	x957
690F2	Tree of Life (medium) constructive algorithms, hashing, trees	2700	x47
198D	Cube Snake constructive algorithms	2700	x63
1386A	Colors *special problem, binary search, constructive algorithms, interactive	2700	x131
472F	Design Tutorial: Change the Goal constructive algorithms, math, matrices	2700	x198
901D	Weighting a Tree constructive algorithms, dfs and similar, graphs	2700	x260
1264E	Beautiful League constructive algorithms, flows, graph matchings	2700	x266
1120B	Once in a casino constructive algorithms, greedy, implementation, math	2700	x275
333C	Lucky Tickets brute force, constructive algorithms	2700	x289
778D	Parquet Re-laying constructive algorithms	2700	x308
1358F	Tasty Cookie binary search, constructive algorithms, greedy, implementation	2700	x313
578E	Walking! constructive algorithms, greedy	2700	x363
1205D	Almost All constructive algorithms, trees	2700	x368
1025E	Colored Cubes constructive algorithms, implementation, matrices	2700	x403
339E	Three Swaps constructive algorithms, dfs and similar, greedy	2700	x427
1338D	Nested Rubber Bands constructive algorithms, dfs and similar, dp, math, trees	2700	x453
1103C	Johnny Solving constructive algorithms, dfs and similar, graphs, math	2700	x471
1148F	Foo Fighters bitmasks, constructive algorithms	2700	x544
356D	Bags and Coins bitmasks, constructive algorithms, dp, greedy	2700	x555
1364E	X-OR bitmasks, constructive algorithms, divide and conquer, interactive, probabilities	2700	x605
1270G	Subset with Zero Sum constructive algorithms, dfs and similar, graphs, math	2700	x796
1070L	Odd Federalization constructive algorithms	2600	x123
1090F	How to Learn You Score constructive algorithms, interactive	2600	x127

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