Problemset - Codeforces

→ Pay attention

Before contest
Educational Codeforces Round 173 (Rated for Div. 2)
24:09:17
Register now »

→ Filter Problems

Difficulty: —

Add tag

Problems

#	Name
1038F	Wrap Around dp, strings	2900	x350
1038E	Maximum Matching bitmasks, brute force, dfs and similar, dp, graphs	2400	x994
1038D	Slime dp, greedy, implementation	1800	x8445
1038C	Gambling greedy, sortings	1300	x9456
1038B	Non-Coprime Partition constructive algorithms, math	1100	x13697
1038A	Equality implementation, strings	800	x15013
1037H	Security data structures, string suffix structures	3200	x1046
1037G	A Game on Strings games	3200	x310
1037F	Maximum Reduction combinatorics, data structures, math	2500	x1151
1037E	Trips graphs	2200	x2919
1037D	Valid BFS? dfs and similar, graphs, shortest paths, trees	1700	x15162
1037C	Equalize dp, greedy, strings	1300	x19020
1037B	Reach Median greedy	1300	x10435
1037A	Packets constructive algorithms, greedy, math	1300	x11249
1036G	Sources and Sinks bitmasks, brute force, dfs and similar	2700	x384
1036F	Relatively Prime Powers combinatorics, math, number theory	2400	x1630
1036E	Covered Points fft, geometry, number theory	2400	x1662
1036D	Vasya and Arrays greedy, two pointers	1600	x9402
1036C	Classy Numbers combinatorics, dp	1900	x9914
1036B	Diagonal Walking v.2 math	1600	x5725
1036A	Function Height math	1000	x10192
1034E	Little C Loves 3 III bitmasks, dp, math	3200	x647
1034D	Intervals of Intervals binary search, data structures, two pointers	3500	x460
1034C	Region Separation combinatorics, dp, number theory, trees	2700	x896
1034B	Little C Loves 3 II brute force, constructive algorithms, flows, graph matchings	2200	x2163
1034A	Enlarge GCD number theory	1800	x8855
1033G	Chip Game games	3500	x388
1033F	Boolean Computer bitmasks, brute force, fft, math	2800	x394
1033E	Hidden Bipartite Graph binary search, constructive algorithms, dfs and similar, graphs, interactive	2800	x661
1033D	Divisors interactive, math, number theory	2000	x2420
1033C	Permutation Game brute force, dp, games	1600	x5647
1033B	Square Difference math, number theory	1100	x10013
1033A	King Escape dfs and similar, graphs, implementation	1000	x13923
1032G	Chattering	2900	x471
1032F	Vasya and Maximum Matching dp, trees	2400	x974
1032E	The Unbearable Lightness of Weights dp, math	2100	x1700
1032D	Barcelonian Distance geometry, implementation	1900	x2847
1032C	Playing Piano constructive algorithms, dp	1700	x4012
1032B	Personalized Cup	1200	x5010
1032A	Kitchen Utensils	900	x6891
1031F	Familiar Operations brute force, graphs, math	2800	x282
1031E	Triple Flips constructive algorithms	2600	x535
1031D	Minimum path greedy	1900	x2827
1031C	Cram Time greedy	1600	x5361
1031B	Curiosity Has No Limits	1500	x3938
1031A	Golden Plate implementation, math	800	x12944
1030G	Linear Congruential Generator number theory	2900	x373
1030F	Putting Boxes Together data structures	2500	x823
1030E	Vasya and Good Sequences bitmasks, dp	2000	x3132
1030D	Vasya and Triangle geometry, number theory	1800	x5986
1030C	Vasya and Golden Ticket implementation	1300	x9491
1030B	Vasya and Cornfield geometry	1100	x12439
1030A	In Search of an Easy Problem implementation	800	x137262
1029F	Multicolored Markers binary search, brute force, math, number theory	2000	x2605
1029E	Tree with Small Distances dp, graphs, greedy	2100	x2971
1029D	Concatenated Multiples implementation, math	1900	x3898
1029C	Maximal Intersection greedy, math, sortings	1600	x7626
1029B	Creating the Contest dp, greedy, math	1200	x17147
1029A	Many Equal Substrings implementation, strings	1300	x12446
1028H	Make Square math	2900	x499
1028G	Guess the number dp, interactive	3000	x578
1028F	Make Symmetrical brute force	2900	x526
1028E	Restore Array constructive algorithms	2400	x1151
1028D	Order book combinatorics, data structures, greedy	2100	x1749
1028C	Rectangles geometry, implementation, sortings	1600	x4627
1028B	Unnatural Conditions constructive algorithms, math	1200	x9214
1028A	Find Square implementation	800	x10948
1027G	X-mouse in the Campus bitmasks, math, number theory	2600	x314
1027F	Session in BSU binary search, dfs and similar, dsu, graph matchings, graphs	2400	x1566
1027E	Inverse Coloring combinatorics, dp, math	2100	x2144
1027D	Mouse Hunt dfs and similar, graphs	1700	x7590
1027C	Minimum Value Rectangle greedy	1600	x6926
1027B	Numbers on the Chessboard implementation, math	1200	x8419
1027A	Palindromic Twist implementation, strings	1000	x16531
1025G	Company Acquisitions constructive algorithms, math	3200	x737
1025F	Disjoint Triangles geometry	2700	x699
1025E	Colored Cubes constructive algorithms, implementation, matrices	2700	x573
1025D	Recovering BST brute force, dp, math, number theory, trees	2100	x3690
1025C	Plasticine zebra constructive algorithms, implementation	1600	x6166
1025B	Weakened Common Divisor brute force, greedy, number theory	1600	x7975
1025A	Doggo Recoloring implementation, sortings	900	x15283
1023G	Pisces data structures, flows, trees	3400	x129
1023F	Mobile Phone Network dfs and similar, dsu, graphs, trees	2600	x893
1023E	Down or Right constructive algorithms, interactive, matrices	2100	x2052
1023D	Array Restoration constructive algorithms, data structures	1700	x4051
1023C	Bracket Subsequence greedy	1200	x10028
1023B	Pair of Toys math	1000	x10944
1023A	Single Wildcard Pattern Matching brute force, implementation, strings	1200	x8738
1020B	Badge brute force, dfs and similar, graphs	1000	x21722
1020A	New Building for SIS math	1000	x9062
1019E	Raining season data structures, divide and conquer, trees	3200	x341
1019D	Large Triangle binary search, geometry, sortings	2700	x664
1019C	Sergey's problem constructive algorithms, graphs	3000	x1131
1019B	The hat binary search, interactive	2000	x1971
1019A	Elections brute force, greedy	1700	x4659
1017H	The Films brute force	3300	x147
1017G	The Tree data structures	3200	x928
1017F	The Neutral Zone brute force, math	2500	x837
1017E	The Supersonic Rocket geometry, hashing, strings	2400	x1029
1017D	The Wu bitmasks, brute force, data structures	1900	x3567