Problemset - Codeforces

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Codeforces Round 1097 (Div. 1, Based on Zhili Cup 2026)
26:12:51
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Before contest
Codeforces Round 1097 (Div. 2, Based on Zhili Cup 2026)
26:12:51
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Problems

#	Name
177E1	Space Voyage binary search	1700	x712
177D2	Encrypting Messages data structures	1500	x2680
177C2	Party brute force, dfs and similar, dsu, graphs	1500	x3010
177C1	Party dfs and similar, dsu, graphs	1500	x2997
176E	Archaeology data structures, dfs and similar, trees	3100	x1523
176D	Hyper String dp	2500	x381
176C	Playing with Superglue combinatorics, constructive algorithms	2000	x534
176B	Word Cut dp	1700	x2388
175F	Gnomes of Might and Magic data structures, graphs, implementation, shortest paths	3000	x70
175E	Power Defence brute force, dp, geometry, greedy	2600	x288
175D	Plane of Tanks: Duel brute force, dp, math, probabilities	2400	x319
175C	Geometry Horse greedy, implementation, sortings, two pointers	1600	x1521
175B	Plane of Tanks: Pro implementation	1400	x1573
175A	Robot Bicorn Attack brute force, implementation	1400	x2549
174C	Range Increments data structures, greedy	1800	x1258
174B	File List dp, greedy, implementation	1400	x2513
173E	Camping Groups data structures, sortings	2600	x648
173D	Deputies constructive algorithms, graphs, greedy, implementation	2500	x289
173C	Spiral Maximum brute force, dp	1900	x1112
173B	Chamber of Secrets dfs and similar, shortest paths	1800	x3987
172E	BHTML+BCSS *special problem, dfs and similar, expression parsing	2200	x283
172D	Calendar Reform *special problem, number theory	1500	x1518
172C	Bus *special problem, implementation, sortings	1500	x1259
171H	A polyline *special problem, implementation	1700	x335
171G	Mysterious numbers - 2 *special problem	1600	x1064
171F	ucyhf *special problem, brute force, implementation, number theory	1600	x1485
171E	MYSTERIOUS LANGUAGE *special problem	2000	x1601
171C	A Piece of Cake *special problem, implementation	2000	x1224
168B	Wizards and Minimal Spell implementation, strings	1700	x1306
167E	Wizards and Bets dfs and similar, graphs, math, matrices	2900	x673
167D	Wizards and Roads data structures, divide and conquer, graph matchings, graphs, greedy	3000	x217
167C	Wizards and Numbers games, math	2300	x740
167B	Wizards and Huge Prize dp, math, probabilities	1800	x2452
167A	Wizards and Trolleybuses implementation, math	1600	x2185
166E	Tetrahedron dp, math, matrices	1500	x25619
166D	Shoe Store dp, graph matchings, greedy, sortings, two pointers	2500	x391
166C	Median greedy, math, sortings	1500	x7427
166B	Polygons geometry, sortings	2100	x3026
165E	Compatible Numbers bitmasks, brute force, dfs and similar, dp	2200	x9382
165D	Beard Graph data structures, dsu, trees	2100	x1929
165C	Another Problem on Strings binary search, brute force, dp, math, strings, two pointers	1600	x13821
165B	Burning Midnight Oil binary search, implementation	1500	x22858
164E	Polycarpus and Tasks	3100	x74
164D	Minimum Diameter binary search, brute force	3100	x276
164C	Machine Programming flows, graphs	2400	x981
164B	Ancient Berland Hieroglyphs two pointers	2000	x529
164A	Variable, or There and Back Again dfs and similar, graphs	1700	x1197
163E	e-Government data structures, dfs and similar, dp, strings, trees	2800	x2185
163D	Large Refrigerator brute force	2900	x571
163C	Conveyor sortings, two pointers	2100	x611
163B	Lemmings binary search	2000	x1177
163A	Substring and Subsequence dp	1700	x2995
162J	Brackets *special problem	1800	x103
162I	Truncatable primes *special problem	2000	x96
162H	Alternating case *special problem	1800	x226
162G	Non-decimal sum *special problem	2000	x88
162F	Factorial zeros *special problem	1800	x229
162E	HQ9+ *special problem	1800	x185
162D	Remove digits *special problem	1900	x232
162C	Prime factorization *special problem	1800	x1385
162B	Binary notation *special problem	1800	x326
161E	Polycarpus the Safecracker brute force, dp	2500	x507
161D	Distance in Tree dfs and similar, dp, trees	1800	x19170
161C	Abracadabra divide and conquer	2400	x693
161B	Discounts constructive algorithms, greedy, sortings	1700	x2090
160E	Buses and People binary search, data structures, sortings	2400	x682
160D	Edges in MST dfs and similar, dsu, graphs, sortings	2300	x3350
160C	Find Pair implementation, math, sortings	1700	x3719
159E	Zebra Tower *special problem, data structures, greedy, sortings	1700	x1098
159D	Palindrome pairs *special problem, brute force, dp, strings	1500	x4685
159C	String Manipulation 1.0 *special problem, binary search, brute force, data structures, strings	1400	x3204
159A	Friends or Not *special problem, greedy, implementation	1400	x2658
158E	Phone Talks *special problem, dp, sortings	1900	x1538
158C	Cd and pwd commands *special problem, data structures, implementation	1400	x10386
156E	Mrs. Hudson's Pancakes brute force, dp	3000	x176
156D	Clues combinatorics, graphs	2500	x2034
156C	Cipher combinatorics, dp	2000	x2624
156B	Suspects constructive algorithms, data structures, implementation	1600	x2449
156A	Message brute force	1700	x3271
154E	Martian Colony geometry	3000	x112
154D	Flatland Fencing games, math	2400	x487
154C	Double Profiles graphs, hashing, sortings	2300	x3317
154B	Colliders math, number theory	1600	x6124
154A	Hometask greedy	1600	x4326
153E	Euclidean Distance *special problem	2100	x84
153D	Date Change *special problem	2000	x89
153C	Caesar Cipher *special problem	2200	x415
153B	Binary notation *special problem	1800	x166
153A	A + B *special problem	1600	x948
152E	Garden bitmasks, dp, graphs, trees	2500	x569
152D	Frames brute force	2600	x257
152C	Pocket Book combinatorics	1400	x11637
150E	Freezing with Style binary search, data structures, divide and conquer, trees	3000	x1034
150D	Mission Impassable dp, strings	2600	x738
150C	Smart Cheater data structures, math, probabilities	2200	x746
150B	Quantity of Strings combinatorics, dfs and similar, graphs, math	1600	x5314
150A	Win or Freeze games, math, number theory	1400	x8592
149E	Martian Strings string suffix structures, strings	2300	x2516
149D	Coloring Brackets dp	1900	x4610
149C	Division into Teams greedy, math, sortings	1500	x5733

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