Problemset - Codeforces

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Codeforces Round 941 (Div. 1)
13:31:51
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Before contest
Codeforces Round 941 (Div. 2)
13:31:51
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Problems

#	Name
1091G	New Year and the Factorisation Collaboration interactive, math, number theory	3200	x189
913G	Power Substring math, number theory	3200	x192
1553I	Stairs combinatorics, divide and conquer, dp, fft, math	3400	x195
1280E	Kirchhoff's Current Loss math	2900	x195
280E	Sequence Transformation brute force, data structures, dp, implementation, math	3000	x196
1761F1	Anti-median (Easy Version) dp, math	3100	x197
848E	Days of Floral Colours combinatorics, divide and conquer, dp, fft, math	3400	x200
1952E	Sweep Line combinatorics, games, math		x201
1641E	Special Positions combinatorics, divide and conquer, fft, math	3300	x202
1392I	Kevin and Grid fft, graphs, math	3300	x202
1928F	Digital Patterns combinatorics, data structures, implementation, math	2900	x206
774E	Big Number and Remainder *special problem, math, number theory	2300	x206
1687E	Become Big For Me combinatorics, constructive algorithms, greedy, math, number theory	3500	x211
1098E	Fedya the Potter binary search, implementation, math, number theory	3400	x211
1815F	OH NO1 (-2-3-4) constructive algorithms, graphs, math	3500	x213
1103E	Radix sum fft, math, number theory	3400	x214
618G	Combining Slimes dp, math, matrices, probabilities	3300	x216
335E	Counting Skyscrapers dp, math, probabilities	2800	x216
1346F	Dune II: Battle For Arrakis *special problem, data structures, greedy, math	2000	x218
1949K	Make Triangle constructive algorithms, math		x222
1951G	Clacking Balls combinatorics, math, probabilities	3100	x223
1211D	Teams *special problem, binary search, greedy, math	2000	x223
1086F	Forest Fires math	3500	x223
1750G	Doping combinatorics, dp, math	3300	x224
497D	Gears brute force, geometry, math	2900	x224
1830E	Bully Sort data structures, math	3500	x225
1270I	Xor on Figures constructive algorithms, fft, math	3500	x226
1223G	Wooden Raft binary search, math, number theory	3200	x226
406E	Hamming Triples implementation, math, two pointers	2800	x227
1286F	Harry The Potter brute force, constructive algorithms, dp, fft, implementation, math	3100	x233
293D	Ksusha and Square geometry, math, probabilities, two pointers	2700	x233
64E	Prime Segment *special problem, brute force, math, number theory	1800	x234
1684H	Hard Cut constructive algorithms, dfs and similar, divide and conquer, math	3400	x235
1548D2	Gregor and the Odd Cows (Hard) brute force, geometry, math, number theory	3300	x237
1193A	Amusement Park *special problem, dp, math		x237
802E	Marmots (medium) math	2200	x237
1474F	1 2 3 4 ... dp, math, matrices	3000	x239
40C	Berland Square implementation, math	2300	x239
1819E	Roads in E City interactive, math, probabilities, trees	3200	x241
1743G	Antifibonacci Cut bitmasks, combinatorics, constructive algorithms, data structures, dp, hashing, math	3000	x244
217D	Bitonix' Patrol bitmasks, brute force, combinatorics, dfs and similar, math	2900	x245
472F	Design Tutorial: Change the Goal constructive algorithms, math, matrices	2700	x248
571E	Geometric Progressions math	3200	x249
346E	Doodle Jump math, number theory	3000	x249
57E	Chess math, shortest paths	3000	x249
1016G	Appropriate Team bitmasks, math, number theory	2700	x253
1884E	Hard Design greedy, implementation, math	2800	x257
1054G	New Road Network constructive algorithms, greedy, math	3300	x257
1466H	Finding satisfactory solutions combinatorics, dp, graphs, greedy, math	3300	x259
394D	Physical Education and Buns brute force, implementation, math		x261
1906K	Deck-Building Game divide and conquer, math	2500	x262
1860F	Evaluate RBS data structures, geometry, implementation, math, sortings	2900	x262
1031F	Familiar Operations brute force, graphs, math	2800	x264
981H	K Paths combinatorics, data structures, dp, fft, math	3100	x264
1806F2	GCD Master (hard version) greedy, math, sortings	2900	x265
1696G	Fishingprince Plays With Array Again brute force, data structures, geometry, math	3300	x265
100E	Lamps in a Line *special problem, math	1600	x265
1874E	Jellyfish and Hack dp, math	3000	x266
1603F	October 18, 2017 combinatorics, dp, implementation, math	2700	x266
1864H	Asterism Stream dp, math, matrices	3200	x267
76C	Mutation bitmasks, dp, math	2700	x267
1012E	Cycle sort dsu, math	3100	x268
457D	Bingo! combinatorics, math, probabilities	2700	x268
1656G	Cycle Palindrome constructive algorithms, graphs, math	3200	x269
1528F	AmShZ Farm combinatorics, fft, math	3300	x272
830E	Perpetual Motion Machine constructive algorithms, dp, graphs, implementation, math, trees	3100	x272
593C	Beautiful Function constructive algorithms, math	2200	x272
220D	Little Elephant and Triangle geometry, math	2500	x272
303D	Rotatable Number math, number theory	2600	x278
802L	Send the Fool Further! (hard) dfs and similar, dp, math, trees	2400	x279
933D	A Creative Cutout brute force, combinatorics, math	2900	x280
449E	Jzzhu and Squares dp, math, number theory	2900	x281
288E	Polo the Penguin and Lucky Numbers dp, implementation, math	2800	x281
1336E2	Chiori and Doll Picking (hard version) bitmasks, brute force, combinatorics, math	3500	x285
1718D	Permutation for Burenka data structures, graph matchings, greedy, math, trees	3300	x286
249E	Endless Matrix math	2600	x287
1662C	European Trip dp, graphs, math, matrices		x288
175D	Plane of Tanks: Duel brute force, dp, math, probabilities	2400	x289
1027G	X-mouse in the Campus bitmasks, math, number theory	2600	x293
991F	Concise and clear brute force, greedy, implementation, math	2700	x294
97C	Winning Strategy binary search, graphs, math, shortest paths	2400	x296
568D	Sign Posts brute force, geometry, math	2800	x298
1698G	Long Binary String bitmasks, math, matrices, meet-in-the-middle, number theory	2900	x300
1637H	Minimize Inversions Number data structures, greedy, math, sortings	3500	x300
78D	Archer's Shot binary search, geometry, math, two pointers	2300	x301
468E	Permanent dp, graph matchings, math, meet-in-the-middle	3100	x305
1361D	Johnny and James greedy, implementation, math, trees	2900	x306
1284F	New Year and Social Network data structures, graph matchings, graphs, math, trees	3200	x306
1644F	Basis combinatorics, fft, math, number theory	2900	x310
303E	Random Ranking dp, math, probabilities	3000	x310
679D	Bear and Chase brute force, dfs and similar, graphs, implementation, math, probabilities	2900	x311
1468L	Prime Divisors Selection binary search, greedy, math, number theory	2700	x312
1148G	Gold Experience constructive algorithms, graphs, math, number theory, probabilities	3300	x312
1847E	Triangle Platinum? brute force, combinatorics, implementation, interactive, math, probabilities	2900	x313
1672G	Cross Xor constructive algorithms, graphs, math, matrices	3200	x313
1671F	Permutation Counting brute force, combinatorics, dp, fft, math	2700	x314
60E	Mushroom Gnomes math, matrices	2600	x316
1571D	Sweepstake *special problem, brute force, constructive algorithms, implementation, math	1800	x317
1805F2	Survival of the Weakest (hard version) greedy, math, sortings, two pointers	3100	x319
1773G	Game of Questions bitmasks, combinatorics, dp, fft, math, probabilities	2800	x319