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
610A	Pasha and Stick combinatorics, math	1000	x27551
609F	Frogs and mosquitoes data structures, greedy	2500	x1511
609E	Minimum spanning tree for each edge data structures, dfs and similar, dsu, graphs, trees	2100	x10262
609D	Gadgets for dollars and pounds binary search, greedy, two pointers	2000	x3162
609C	Load Balancing implementation, math	1500	x7391
609B	The Best Gift constructive algorithms, implementation	1100	x10088
609A	USB Flash Drives greedy, implementation, sortings	800	x19418
608B	Hamming Distance Sum combinatorics, strings	1500	x7461
608A	Saitama Destroys Hotel implementation, math	1000	x9909
607E	Cross Sum binary search, geometry	3300	x291
607D	Power Tree data structures, trees	2600	x643
607C	Marbles hashing, strings	2500	x845
607B	Zuma dp	1900	x16286
607A	Chain Reaction binary search, dp	1600	x10808
606B	Testing Robots implementation	1600	x2833
606A	Magic Spheres implementation	1200	x8237
605E	Intergalaxy Trips probabilities, shortest paths	2700	x1546
605D	Board Game data structures, dfs and similar	2500	x905
605C	Freelancer's Dreams geometry	2400	x1295
605B	Lazy Student constructive algorithms, data structures, graphs	1700	x3849
605A	Sorting Railway Cars constructive algorithms, greedy	1600	x7587
604B	More Cowbell binary search, greedy	1400	x8987
604A	Uncowed Forces implementation	1000	x9374
603E	Pastoral Oddities data structures, divide and conquer, dsu, math, trees	3000	x1543
603D	Ruminations on Ruminants geometry, math	2900	x361
603C	Lieges of Legendre games, math	2200	x2060
603B	Moodular Arithmetic combinatorics, dfs and similar, dsu, math, number theory	1800	x2710
603A	Alternative Thinking dp, greedy, math	1600	x8251
602B	Approximating a Constant Range dp, implementation, two pointers	1400	x12069
602A	Two Bases brute force, implementation	1100	x8796
601E	A Museum Robbery data structures, dp	2800	x1141
601D	Acyclic Organic Compounds data structures, dfs and similar, dsu, hashing, strings, trees	2400	x1246
601C	Kleofáš and the n-thlon dp, math, probabilities	2300	x1413
601B	Lipshitz Sequence data structures, math	2100	x2423
601A	The Two Routes graphs, shortest paths	1600	x13869
600F	Edge coloring of bipartite graph graphs	2800	x1155
600E	Lomsat gelral data structures, dfs and similar, dsu, trees	2300	x18378
600D	Area of Two Circles' Intersection geometry	2000	x2703
600C	Make Palindrome constructive algorithms, greedy, strings	1800	x7079
600B	Queries about less or equal elements binary search, data structures, sortings, two pointers	1300	x39129
600A	Extract Numbers implementation, strings	1600	x5810
599E	Sandy and Nuts bitmasks, dp, trees	2600	x761
599D	Spongebob and Squares brute force, math	1900	x2729
599C	Day at the Beach sortings	1600	x5073
599B	Spongebob and Joke implementation	1500	x4578
599A	Patrick and Shopping implementation	800	x31435
598F	Cut Length geometry	2900	x452
598E	Chocolate Bar brute force, dp	2000	x6083
598D	Igor In the Museum dfs and similar, graphs, shortest paths	1700	x13084
598C	Nearest vectors geometry, sortings	2300	x5397
598B	Queries on a String implementation, strings	1300	x12199
598A	Tricky Sum math	900	x32205
597C	Subsequences data structures, dp	1900	x6601
597B	Restaurant dp, greedy, sortings	1600	x5665
597A	Divisibility math	1600	x4932
596E	Wilbur and Strings dfs and similar, dp, graphs, strings	2500	x425
596D	Wilbur and Trees dp, math, probabilities, sortings	2300	x729
596C	Wilbur and Points combinatorics, greedy, sortings	1700	x2335
596B	Wilbur and Array greedy, implementation	1100	x10891
596A	Wilbur and Swimming Pool geometry, implementation	1100	x8091
595B	Pasha and Phone binary search, math	1600	x3093
595A	Vitaly and Night constructive algorithms, implementation	800	x15502
594E	Cutting the Line string suffix structures, strings	3100	x175
594D	REQ data structures, number theory	2500	x2017
594C	Edo and Magnets brute force, greedy, implementation, two pointers	2300	x759
594B	Max and Bike binary search, geometry	2500	x560
594A	Warrior and Archer games	2300	x1874
593E	Strange Calculation and Cats dp, matrices	2400	x700
593D	Happy Tree Party data structures, dfs and similar, graphs, math, trees	2400	x1422
593C	Beautiful Function constructive algorithms, math	2200	x325
593B	Anton and Lines geometry, sortings	1600	x4205
593A	2Char brute force, implementation	1200	x6156
592E	BCPC binary search, geometry, two pointers	2700	x234
592D	Super M dfs and similar, dp, graphs, trees	2200	x2964
592C	The Big Race math	1800	x3194
592B	The Monster and the Squirrel math	1100	x8822
592A	PawnChess implementation	1200	x6525
591B	Rebranding implementation, strings	1200	x8644
591A	Wizards' Duel implementation, math	900	x17276
590E	Birthday graph matchings, strings	3200	x883
590D	Top Secret Task dp	2300	x1333
590C	Three States dfs and similar, graphs, shortest paths	2200	x3537
590B	Chip 'n Dale Rescue Rangers binary search, geometry, math	2100	x2030
590A	Median Smoothing implementation	1700	x4283
588B	Duff in Love math	1300	x14972
588A	Duff and Meat greedy	900	x24259
587F	Duff is Mad data structures, strings	3000	x1351
587E	Duff as a Queen data structures	2900	x847
587D	Duff in Mafia 2-sat, binary search	3100	x871
587C	Duff in the Army data structures, trees	2200	x4727
587B	Duff in Beach dp	2100	x1496
587A	Duff and Weight Lifting greedy	1500	x8325
586B	Laurenty and Shop implementation	1300	x5239
586A	Alena's Schedule implementation	900	x10590
585F	Digits of Number Pi dp, implementation, strings	3200	x797
585E	Present for Vitalik the Philatelist combinatorics, math, number theory	2900	x1221
585D	Lizard Era: Beginning meet-in-the-middle	2300	x2036
585C	Alice, Bob, Oranges and Apples number theory	2400	x1065
585B	Phillip and Trains dfs and similar, graphs, shortest paths	1700	x3810
585A	Gennady the Dentist brute force, implementation	1800	x4476

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