Problemset - Codeforces

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

#	Name
53D	Physical Education sortings	1500	x2626
53C	Little Frog constructive algorithms	1200	x7119
53B	Blog Photo binary search, implementation	1700	x1570
53A	Autocomplete implementation	1100	x5790
52C	Circular RMQ data structures	2200	x11213
52B	Right Triangles combinatorics	1600	x2406
52A	123-sequence implementation	900	x10565
51F	Caterpillar dfs and similar, dp, graphs, trees	2800	x816
51E	Pentagon combinatorics, graphs, matrices	2400	x454
51D	Geometrical problem implementation	2200	x563
51C	Three Base Stations binary search, greedy	1800	x2904
51B	bHTML Tables Analisys expression parsing	1700	x1044
51A	Cheaterius's Problem implementation	1300	x2085
50E	Square Equation Roots math	2300	x432
50D	Bombing binary search, dp, probabilities	2100	x707
50C	Happy Farm 5 geometry	2000	x882
50B	Choosing Symbol Pairs strings	1500	x6447
50A	Domino piling greedy, math	800	x318227
49E	Common ancestor dp	2300	x798
49D	Game brute force, dp, implementation	1800	x2136
49C	Disposition constructive algorithms, math	1700	x1865
49B	Sum math	1500	x2802
49A	Sleuth implementation	800	x15257
48H	Black and White constructive algorithms	2800	x184
48G	Galaxy Union dp, trees, two pointers	2700	x324
48F	Snow sellers greedy, sortings	2800	x189
48E	Ivan the Fool VS Gorynych the Dragon dp, games, graphs	2100	x703
48D	Permutations greedy	1500	x2995
48C	The Race math	1800	x856
48B	Land Lot brute force, implementation	1200	x3042
48A	Rock-paper-scissors implementation, schedules	900	x7287
47E	Cannon data structures, geometry, sortings	2200	x440
47D	Safe brute force	2200	x974
47C	Crossword implementation	2000	x867
47B	Coins implementation	1200	x16064
47A	Triangular numbers brute force, math	800	x18161
46G	Emperor's Problem geometry	2500	x134
46F	Hercule Poirot Problem dsu, graphs	2300	x358
46E	Comb data structures, dp	1900	x1158
46D	Parking Lot data structures, implementation	1800	x1094
46C	Hamsters and Tigers two pointers	1600	x2875
46B	T-shirts from Sponsor implementation	1100	x4133
46A	Ball Game brute force, implementation	800	x9929
45J	Planting Trees constructive algorithms	1800	x1073
45I	TCMCF+++ greedy	1400	x2802
45H	Road Problem graphs	2100	x226
45G	Prime Problem number theory	2200	x1221
45F	Goats and Wolves greedy	2500	x167
45E	Director constructive algorithms, greedy	2000	x642
45D	Event Dates greedy, meet-in-the-middle, sortings	1900	x1973
45C	Dancing Lessons data structures	1900	x1145
45B	School dp, dsu	2200	x319
45A	Codecraft III implementation	900	x8101
44J	Triminoes constructive algorithms, greedy	2000	x614
44I	Toys brute force, combinatorics	2300	x231
44H	Phone Number dp	1700	x2003
44G	Shooting Gallery data structures, implementation	2500	x501
44F	BerPaint geometry, graphs	2700	x80
44E	Anfisa the Monkey dp	1400	x6108
44D	Hyperdrive math	1800	x800
44C	Holidays implementation	1300	x4051
44B	Cola implementation	1500	x2301
44A	Indian Summer implementation	900	x17415
43E	Race brute force, implementation, two pointers	2300	x446
43D	Journey brute force, constructive algorithms, implementation	2000	x1223
43C	Lucky Tickets greedy	1300	x4760
43B	Letter implementation, strings	1100	x20473
43A	Football strings	1000	x69105
42E	Baldman and the military dfs and similar, graphs, trees	2700	x244
42D	Strange town constructive algorithms, math	2300	x485
42C	Safe cracking brute force, constructive algorithms	2200	x567
42B	Game of chess unfinished implementation	1700	x1153
42A	Guilty --- to the kitchen! greedy, implementation	1400	x3173
41E	3-cycles constructive algorithms, graphs, greedy	1900	x2224
41D	Pawn dp	1900	x2895
41C	Email address expression parsing, implementation	1300	x4193
41B	Martian Dollar brute force	1400	x4626
41A	Translation implementation, strings	800	x188229
40E	Number Table combinatorics	2500	x810
40D	Interesting Sequence math	2600	x170
40C	Berland Square implementation, math	2300	x325
40B	Repaintings math	1600	x1397
40A	Find Color constructive algorithms, geometry, implementation, math	1300	x4433
39K	Testing	2600	x102
39J	Spelling Check hashing, implementation, strings	1500	x3569
39I	Tram	2500	x199
39H	Multiplication Table implementation	1300	x3125
39G	Inverse Function implementation	2400	x160
39F	Pacifist frogs implementation	1300	x1962
39E	What Has Dirichlet Got to Do with That? dp, games	2000	x1033
39D	Cubical Planet math	1100	x4658
39C	Moon Craters dp, sortings	2100	x697
39B	Company Income Growth greedy	1300	x3095
39A	C*++ Calculations expression parsing, greedy	2000	x794
38H	The Great Marathon dp	2400	x445
38G	Queue data structures	2300	x807
38F	Smart Boy dp, games, strings	2100	x446
38E	Let's Go Rolling! dp, sortings	1800	x2997
38D	Vasya the Architect implementation	1900	x1075
38C	Blinds brute force	1400	x2559

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