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
1038C	Gambling greedy, sortings	1300	x9806
1038B	Non-Coprime Partition constructive algorithms, math	1100	x14713
1038A	Equality implementation, strings	800	x15643
1037H	Security data structures, string suffix structures	3200	x1209
1037G	A Game on Strings games	3200	x373
1037F	Maximum Reduction combinatorics, data structures, math	2500	x1272
1037E	Trips graphs	2200	x3124
1037D	Valid BFS? dfs and similar, graphs, shortest paths, trees	1700	x19089
1037C	Equalize dp, greedy, strings	1300	x20111
1037B	Reach Median greedy	1300	x10877
1037A	Packets constructive algorithms, greedy, math	1300	x11828
1036G	Sources and Sinks bitmasks, brute force, dfs and similar	2700	x431
1036F	Relatively Prime Powers combinatorics, math, number theory	2400	x1858
1036E	Covered Points fft, geometry, number theory	2400	x1772
1036D	Vasya and Arrays greedy, two pointers	1600	x10625
1036C	Classy Numbers combinatorics, dp	1900	x13364
1036B	Diagonal Walking v.2 math	1600	x5964
1036A	Function Height math	1000	x10583
1034E	Little C Loves 3 III bitmasks, dp, math	3200	x750
1034D	Intervals of Intervals binary search, data structures, two pointers	3500	x587
1034C	Region Separation combinatorics, dp, number theory, trees	2700	x993
1034B	Little C Loves 3 II brute force, constructive algorithms, flows, graph matchings	2200	x2290
1034A	Enlarge GCD number theory	1800	x9919
1033G	Chip Game games	3500	x502
1033F	Boolean Computer bitmasks, brute force, fft, math	2800	x462
1033E	Hidden Bipartite Graph binary search, constructive algorithms, dfs and similar, graphs, interactive	2800	x788
1033D	Divisors interactive, math, number theory	2000	x2611
1033C	Permutation Game brute force, dp, games	1600	x6215
1033B	Square Difference math, number theory	1100	x11951
1033A	King Escape dfs and similar, graphs, implementation	1000	x16031
1032G	Chattering	2900	x511
1032F	Vasya and Maximum Matching dp, trees	2400	x1143
1032E	The Unbearable Lightness of Weights dp, math	2100	x1865
1032D	Barcelonian Distance geometry, implementation	1900	x2976
1032C	Playing Piano constructive algorithms, dp	1700	x4330
1032B	Personalized Cup	1200	x5145
1032A	Kitchen Utensils	900	x7335
1031F	Familiar Operations brute force, graphs, math	2800	x310
1031E	Triple Flips constructive algorithms	2600	x571
1031D	Minimum path greedy	1900	x2985
1031C	Cram Time greedy	1600	x5608
1031B	Curiosity Has No Limits	1500	x4061
1031A	Golden Plate implementation, math	800	x13396
1030G	Linear Congruential Generator number theory	2900	x398
1030F	Putting Boxes Together data structures	2500	x905
1030E	Vasya and Good Sequences bitmasks, dp	2000	x3350
1030D	Vasya and Triangle geometry, number theory	1800	x6252
1030C	Vasya and Golden Ticket implementation	1300	x9923
1030B	Vasya and Cornfield geometry	1100	x13225
1030A	In Search of an Easy Problem implementation	800	x171363
1029F	Multicolored Markers binary search, brute force, math, number theory	2000	x2754
1029E	Tree with Small Distances dp, graphs, greedy	2100	x3415
1029D	Concatenated Multiples implementation, math	1900	x4233
1029C	Maximal Intersection greedy, math, sortings	1600	x8272
1029B	Creating the Contest dp, greedy, math	1200	x18462
1029A	Many Equal Substrings implementation, strings	1300	x13430
1028H	Make Square math	2900	x564
1028G	Guess the number dp, interactive	3000	x646
1028F	Make Symmetrical brute force	2900	x580
1028E	Restore Array constructive algorithms	2400	x1202
1028D	Order book combinatorics, data structures, greedy	2100	x1822
1028C	Rectangles geometry, implementation, sortings	1600	x5050
1028B	Unnatural Conditions constructive algorithms, math	1200	x10234
1028A	Find Square implementation	800	x11517
1027G	X-mouse in the Campus bitmasks, math, number theory	2600	x360
1027F	Session in BSU binary search, dfs and similar, dsu, graph matchings, graphs	2400	x1947
1027E	Inverse Coloring combinatorics, dp, math	2100	x2362
1027D	Mouse Hunt dfs and similar, graphs	1700	x8366
1027C	Minimum Value Rectangle greedy	1600	x7152
1027B	Numbers on the Chessboard implementation, math	1200	x8744
1027A	Palindromic Twist implementation, strings	1000	x18799
1025G	Company Acquisitions constructive algorithms, math	3200	x864
1025F	Disjoint Triangles geometry	2700	x908
1025E	Colored Cubes constructive algorithms, implementation, matrices	2700	x619
1025D	Recovering BST brute force, dp, math, number theory, trees	2100	x4118
1025C	Plasticine zebra constructive algorithms, implementation	1600	x6491
1025B	Weakened Common Divisor brute force, greedy, number theory	1600	x8508
1025A	Doggo Recoloring implementation, sortings	900	x16523
1023G	Pisces data structures, flows, trees	3400	x188
1023F	Mobile Phone Network dfs and similar, dsu, graphs, trees	2600	x1009
1023E	Down or Right constructive algorithms, interactive, matrices	2100	x2220
1023D	Array Restoration constructive algorithms, data structures	1700	x4282
1023C	Bracket Subsequence greedy	1200	x10753
1023B	Pair of Toys math	1000	x11663
1023A	Single Wildcard Pattern Matching brute force, implementation, strings	1200	x9263
1020B	Badge brute force, dfs and similar, graphs	1000	x25117
1020A	New Building for SIS math	1000	x9453
1019E	Raining season data structures, divide and conquer, trees	3200	x407
1019D	Large Triangle binary search, geometry, sortings	2700	x742
1019C	Sergey's problem constructive algorithms, graphs	3000	x1454
1019B	The hat binary search, interactive	2000	x2112
1019A	Elections brute force, greedy	1700	x4852
1017H	The Films brute force	3300	x184
1017G	The Tree data structures	3200	x1209
1017F	The Neutral Zone brute force, math	2500	x944
1017E	The Supersonic Rocket geometry, hashing, strings	2400	x1092
1017D	The Wu bitmasks, brute force, data structures	1900	x3953
1017C	The Phone Number constructive algorithms, greedy	1600	x6469
1017B	The Bits implementation, math	1200	x9623
1017A	The Rank implementation	800	x21583

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