Problemset - Codeforces

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Codeforces Round 1097 (Div. 1, Based on Zhili Cup 2026)
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Before contest
Codeforces Round 1097 (Div. 2, Based on Zhili Cup 2026)
2 days
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Problems

#	Name
482D	Random Function and Tree combinatorics, dp, trees	2700	x594
482C	Game with Strings bitmasks, dp, probabilities	2600	x993
482B	Interesting Array constructive algorithms, data structures, trees	1800	x7727
482A	Diverse Permutation constructive algorithms, greedy	1200	x10258
480E	Parking Lot data structures, divide and conquer	2800	x640
480D	Parcels dp, graphs	2600	x492
479E	Riding in a Lift combinatorics, dp	1900	x5624
479D	Long Jumps binary search, greedy, implementation	1700	x5009
479C	Exams greedy, sortings	1400	x33064
479B	Towers brute force, constructive algorithms, greedy, implementation, sortings	1400	x8428
479A	Expression brute force, math	1000	x112227
478E	Wavy numbers brute force, dfs and similar, meet-in-the-middle, sortings	2900	x253
478D	Red-Green Towers dp	2000	x7141
478C	Table Decorations greedy	1800	x20587
478B	Random Teams combinatorics, constructive algorithms, greedy, math	1300	x41252
478A	Initial Bet implementation	1100	x27185
477E	Dreamoon and Notepad data structures	3100	x160
477D	Dreamoon and Binary dp, strings	2700	x593
476E	Dreamoon and Strings dp, strings	2200	x2111
476D	Dreamoon and Sets constructive algorithms, greedy, math	1900	x5033
476C	Dreamoon and Sums math	1600	x6026
476B	Dreamoon and WiFi bitmasks, brute force, combinatorics, dp, math, probabilities	1300	x37000
476A	Dreamoon and Stairs implementation, math	1000	x51597
475F	Meta-universe data structures	2900	x267
475E	Strongly Connected City 2 dfs and similar	2700	x622
475D	CGCDSSQ brute force, data structures, math	2000	x6507
475C	Kamal-ol-molk's Painting brute force, constructive algorithms, greedy	2100	x834
475B	Strongly Connected City brute force, dfs and similar, graphs, implementation	1400	x9246
475A	Bayan Bus implementation	1100	x4931
474F	Ant colony data structures, math, number theory	2100	x11580
474E	Pillars binary search, data structures, dp, sortings, trees	2000	x4169
474D	Flowers dp	1700	x30612
474C	Captain Marmot brute force, geometry	2000	x3385
474B	Worms binary search, implementation	1200	x62475
474A	Keyboard implementation	900	x54631
472G	Design Tutorial: Increase the Constraints bitmasks, data structures, fft	2800	x463
472F	Design Tutorial: Change the Goal constructive algorithms, math, matrices	2700	x301
472E	Design Tutorial: Learn from a Game constructive algorithms, implementation	2800	x138
472D	Design Tutorial: Inverse the Problem dfs and similar, dsu, shortest paths, trees	1900	x6519
472C	Design Tutorial: Make It Nondeterministic greedy	1400	x6517
472B	Design Tutorial: Learn from Life	1300	x7645
472A	Design Tutorial: Learn from Math math, number theory	800	x70752
471E	MUH and Lots and Lots of Segments data structures, dsu	2700	x88
471D	MUH and Cube Walls string suffix structures, strings	1800	x10271
471C	MUH and House of Cards binary search, brute force, greedy, math	1700	x3744
471B	MUH and Important Things implementation, sortings	1300	x6204
471A	MUH and Sticks implementation	1100	x13762
470H	Array Sorting *special problem	2300	x194
470G	Hamming Distance *special problem	2300	x131
470F	Pairwise Sums *special problem	2300	x114
470E	Chessboard *special problem	1900	x205
470D	Caesar Cipher *special problem	1900	x157
470C	Eval *special problem	1900	x262
470B	Hexakosioihexekontahexaphobia *special problem	1800	x271
470A	Crystal Ball Sequence *special problem, implementation	1400	x695
469B	Chat Online implementation	1300	x13353
469A	I Wanna Be the Guy greedy, implementation	800	x121134
468E	Permanent dp, graph matchings, math, meet-in-the-middle	3100	x387
468D	Tree graph matchings	3100	x476
468C	Hack it! binary search, constructive algorithms, math	2500	x2739
468B	Two Sets 2-sat, dfs and similar, dsu, graph matchings, greedy	2000	x5269
468A	24 Game constructive algorithms, greedy, math	1500	x8398
467E	Alex and Complicated Task data structures, dp, greedy	2300	x852
467D	Fedor and Essay dfs and similar, dp, graphs, hashing, strings	2400	x2028
467C	George and Job dp, implementation	1700	x16572
467B	Fedor and New Game bitmasks, brute force, constructive algorithms, implementation	1100	x42836
467A	George and Accommodation implementation	800	x155863
466E	Information Graph dfs and similar, dsu, graphs, trees	2100	x2617
466D	Increase Sequence combinatorics, dp	2100	x3755
466C	Number of Ways binary search, brute force, data structures, dp, two pointers	1700	x41869
466B	Wonder Room brute force, math	2000	x5265
466A	Cheap Travel implementation	1200	x76996
465B	Inbox (100500) implementation	1000	x10870
465A	inc ARG implementation	900	x10445
464E	The Classic Problem data structures, graphs, shortest paths	3000	x1844
464D	World of Darkraft - 2 dp, probabilities	2700	x757
464C	Substitutes in Number dp	2100	x1952
464B	Restore Cube brute force, geometry	2000	x1782
464A	No to Palindromes! greedy, strings	1700	x6235
463E	Caisa and Tree brute force, dfs and similar, math, number theory, trees	2100	x1741
463D	Gargari and Permutations dfs and similar, dp, graphs, implementation	1900	x7295
463C	Gargari and Bishops greedy, hashing, implementation	1900	x9179
463B	Caisa and Pylons brute force, implementation, math	1100	x29961
463A	Caisa and Sugar brute force, implementation	1200	x9561
462B	Appleman and Card Game greedy	1300	x15561
462A	Appleman and Easy Task brute force, implementation	1000	x17866
461E	Appleman and a Game binary search, shortest paths, strings	3000	x516
461D	Appleman and Complicated Task dsu, math	2800	x401
461C	Appleman and a Sheet of Paper data structures, implementation	2200	x1393
461B	Appleman and Tree dfs and similar, dp, trees	2000	x7016
461A	Appleman and Toastman greedy, sortings	1200	x16432
460E	Roland and Rose brute force, geometry, math, sortings	2700	x382
460D	Little Victor and Set brute force, constructive algorithms, math	2300	x1036
460C	Present binary search, data structures, greedy	1700	x6785
460B	Little Dima and Equation brute force, implementation, math, number theory	1500	x13371
460A	Vasya and Socks brute force, implementation, math	900	x52010
459E	Pashmak and Graph dp, sortings	1900	x5971
459D	Pashmak and Parmida's problem data structures, divide and conquer, sortings	1800	x12798
459C	Pashmak and Buses combinatorics, constructive algorithms, math	1900	x6482
459B	Pashmak and Flowers combinatorics, implementation, sortings	1300	x47468

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