Problemset - Codeforces

→ Pay attention

Before contest
Codeforces Round (Div. 2)
4 days
Register now »

*has extra registration

→ Filter Problems

Difficulty: —

Add tag

Problems

#	Name
64G	Path Canonization *special problem	2200	x117
64F	Domain *special problem, expression parsing	2000	x177
64E	Prime Segment *special problem, brute force, math, number theory	1800	x236
64D	Presents *special problem, greedy	1800	x283
64C	Table *special problem, greedy, implementation, math	1600	x333
64B	Expression *special problem, expression parsing	1500	x1003
64A	Factorial *special problem, implementation	1300	x2733
63E	Sweets Game bitmasks, dfs and similar, dp, games, implementation	2000	x718
63D	Dividing Island constructive algorithms	1900	x1235
63C	Bulls and Cows brute force, implementation	1700	x1649
63B	Settlers' Training implementation	1200	x4747
63A	Sinking Ship implementation, sortings, strings	900	x11031
62E	World Evil dp, flows	2700	x227
62D	Wormhouse dfs and similar, graphs	2300	x350
62C	Inquisition geometry, implementation, sortings	2300	x248
62B	Tyndex.Brome binary search, implementation	1800	x1269
62A	A Student's Dream greedy, math	1300	x3398
61E	Enemy is weak data structures, trees	1900	x10425
61D	Eternal Victory dfs and similar, graphs, greedy, shortest paths, trees	1800	x6327
61C	Capture Valerian math	2000	x696
61B	Hard Work strings	1300	x3813
61A	Ultra-Fast Mathematician implementation	800	x105992
60E	Mushroom Gnomes math, matrices	2600	x319
60D	Savior brute force, dsu, math	2500	x401
60C	Mushroom Strife brute force, dfs and similar	2100	x553
60B	Serial Time! dfs and similar, dsu	1400	x4506
60A	Where Are My Flakes? implementation, two pointers	1300	x3555
59E	Shortest Path graphs, shortest paths	2000	x3205
59D	Team Arrangement constructive algorithms, greedy, implementation	2000	x609
59C	Title expression parsing	1600	x2027
59B	Fortune Telling implementation, number theory	1200	x6760
59A	Word implementation, strings	800	x166410
58E	Expression dp	2400	x351
58D	Calendar greedy, strings	2000	x715
58C	Trees brute force	1800	x1982
58B	Coins greedy	1300	x11966
58A	Chat room greedy, strings	1000	x124772
57E	Chess math, shortest paths	3000	x254
57D	Journey dp, math	2500	x333
57C	Array combinatorics, math	1900	x2406
57B	Martian Architecture implementation	1600	x995
57A	Square Earth? dfs and similar, greedy, implementation	1300	x2830
56E	Domino Principle binary search, data structures, sortings	2200	x2254
56D	Changing a String dp	2100	x1557
56C	Corporation Mail data structures, expression parsing, implementation	1700	x1128
56B	Spoilt Permutation implementation	1300	x3655
56A	Bar implementation	1000	x8420
55E	Very simple problem geometry, two pointers	2500	x680
55D	Beautiful numbers dp, number theory	2500	x3674
55C	Pie or die games	1900	x1604
55B	Smallest number brute force	1600	x2669
55A	Flea travel implementation, math	1200	x3360
54E	Vacuum Сleaner geometry	2700	x188
54D	Writing a Song brute force, dp, strings	2100	x517
54C	First Digit Law dp, math, probabilities	2000	x1254
54B	Cutting Jigsaw Puzzle hashing, implementation	1800	x745
54A	Presents implementation	1300	x2028
53E	Dead Ends bitmasks, dp	2500	x919
53D	Physical Education sortings	1500	x1970
53C	Little Frog constructive algorithms	1200	x6340
53B	Blog Photo binary search, implementation	1700	x1385
53A	Autocomplete implementation	1100	x4905
52C	Circular RMQ data structures	2200	x8502
52B	Right Triangles combinatorics	1600	x1999
52A	123-sequence implementation	900	x8441
51F	Caterpillar dfs and similar, dp, graphs, trees	2800	x551
51E	Pentagon combinatorics, graphs, matrices	2400	x372
51D	Geometrical problem implementation	2200	x438
51C	Three Base Stations binary search, greedy	1800	x1842
51B	bHTML Tables Analisys expression parsing	1700	x852
51A	Cheaterius's Problem implementation	1300	x1789
50E	Square Equation Roots math	2300	x348
50D	Bombing binary search, dp, probabilities	2100	x605
50C	Happy Farm 5 geometry	2000	x738
50B	Choosing Symbol Pairs strings	1500	x5585
50A	Domino piling greedy, math	800	x234139
49E	Common ancestor dp	2300	x651
49D	Game brute force, dp, implementation	1800	x1856
49C	Disposition constructive algorithms, math	1700	x1660
49B	Sum math	1500	x2413
49A	Sleuth implementation	800	x13068
48H	Black and White constructive algorithms	2800	x137
48G	Galaxy Union dp, trees, two pointers	2700	x255
48F	Snow sellers greedy, sortings	2800	x144
48E	Ivan the Fool VS Gorynych the Dragon dp, games, graphs	2100	x568
48D	Permutations greedy	1500	x2433
48C	The Race math	1800	x762
48B	Land Lot brute force, implementation	1200	x2631
48A	Rock-paper-scissors implementation, schedules	900	x5793
47E	Cannon data structures, geometry, sortings	2200	x358
47D	Safe brute force	2200	x755
47C	Crossword implementation	2000	x756
47B	Coins implementation	1200	x13332
47A	Triangular numbers brute force, math	800	x14618
46G	Emperor's Problem geometry	2500	x110
46F	Hercule Poirot Problem dsu, graphs	2300	x313
46E	Comb data structures, dp	1900	x931
46D	Parking Lot data structures, implementation	1800	x965
46C	Hamsters and Tigers two pointers	1600	x2289
46B	T-shirts from Sponsor implementation	1100	x3593