Problemset - Codeforces

→ Pay attention

Before contest
Codeforces Global Round 26
18:04:43
Register now »

*has extra registration

→ Filter Problems

Difficulty: —

Add tag

Problems

#	Name
142E	Help Greg the Dwarf 2 geometry	3000	x80
142D	Help Shrek and Donkey 2 games	2600	x339
142C	Help Caretaker brute force, dp	2300	x903
142B	Help General constructive algorithms, greedy, implementation	1800	x2144
142A	Help Farmer brute force, math	1600	x2581
141E	Clearing Up constructive algorithms, dp, dsu, graphs	2300	x867
141D	Take-off Ramps graphs, shortest paths	2300	x884
141C	Queue constructive algorithms, greedy, sortings	1800	x2374
141B	Hopscotch geometry, math	1400	x5159
141A	Amusing Joke implementation, sortings, strings	800	x78808
140F	New Year Snowflake geometry, sortings	2600	x362
140E	New Year Garland combinatorics, dp	2600	x875
140D	New Year Contest greedy, sortings	1800	x2196
140C	New Year Snowmen binary search, data structures, greedy	1800	x4209
140B	New Year Cards brute force, greedy, implementation	1800	x1525
140A	New Year Table geometry, math	1700	x4094
139B	Wallpaper implementation, math	1600	x1277
139A	Petr and Book implementation	1000	x29143
138E	Hellish Constraints brute force, dp, two pointers	2900	x168
138D	World of Darkraft dp, games	2500	x474
138C	Mushroom Gnomes - 2 binary search, data structures, probabilities, sortings	2200	x847
138B	Digits Permutations greedy	1900	x1011
138A	Literature Lesson implementation	1600	x2345
137E	Last Chance data structures, implementation, strings	2000	x1197
137D	Palindromes dp, strings	1900	x1480
137C	History sortings	1500	x7089
137B	Permutation greedy	1000	x13376
137A	Postcards and photos implementation	900	x6970
136B	Ternary Logic implementation, math	1100	x4743
136A	Presents implementation	800	x110631
135E	Weak Subsequence combinatorics	3000	x267
135D	Cycle brute force, dfs and similar, implementation	2500	x294
135C	Zero-One constructive algorithms, games, greedy	1900	x1324
135B	Rectangle and Square brute force, geometry, math	1600	x2303
135A	Replacement greedy, implementation, sortings	1300	x7459
134C	Swaps constructive algorithms, graphs, greedy	2200	x460
134B	Pairs of Numbers brute force, dfs and similar, math, number theory	1900	x1929
134A	Average Numbers brute force, implementation	1200	x3816
133B	Unary implementation	1200	x8669
133A	HQ9+ implementation	900	x101046
132E	Bits of merry old England flows, graphs	2700	x522
132D	Constants in the language of Shakespeare constructive algorithms, dp, greedy	2100	x605
132C	Logo Turtle dp	1800	x2280
132B	Piet implementation	2100	x473
132A	Turing Tape implementation	1300	x2743
131F	Present to Mom binary search, two pointers	2000	x602
131E	Yet Another Task with Queens sortings	1700	x1821
131D	Subway dfs and similar, graphs	1600	x4524
131C	The World is a Theatre combinatorics, math	1400	x10714
131B	Opposites Attract implementation, math	1200	x6881
131A	cAPS lOCK implementation, strings	1000	x82083
130J	Date calculation *special problem	1800	x325
130I	Array sorting *special problem, sortings	2300	x166
130H	Balanced brackets *special problem	1600	x540
130G	CAPS LOCK ON *special problem	1700	x275
130F	Prime factorization *special problem	1600	x275
130E	Tribonacci numbers *special problem	1600	x294
130D	Exponentiation *special problem	1500	x384
130C	Decimal sum *special problem	1500	x487
130B	Gnikool Ssalg *special problem, implementation, strings	1400	x518
130A	Hexagonal numbers *special problem, implementation	900	x1527
129B	Students and Shoelaces brute force, dfs and similar, graphs, implementation	1200	x11771
129A	Cookies implementation	900	x21923
128E	Birthday geometry, math	2900	x97
128D	Numbers constructive algorithms, implementation	2000	x1090
128C	Games with Rectangle combinatorics, dp	2000	x2715
128B	String brute force, constructive algorithms, hashing, implementation, string suffix structures, strings	2100	x2474
128A	Statues dfs and similar	1500	x3135
127B	Canvas Frames implementation	1000	x8266
127A	Wasted Time geometry	900	x10798
126E	Pills brute force, flows	2900	x83
126D	Fibonacci Sums dp, math	2300	x808
126C	E-reader Display constructive algorithms, greedy	2000	x712
126B	Password binary search, dp, hashing, string suffix structures, strings	1700	x18089
126A	Hot Bath binary search, brute force, math	1900	x1410
125E	MST Company binary search, graphs	2400	x1017
125D	Two progressions constructive algorithms, greedy	2200	x394
125C	Hobbits' Party constructive algorithms, greedy	1600	x907
125B	Simple XML implementation	1000	x2777
125A	Measuring Lengths in Baden math	1400	x2647
124B	Permutations brute force, combinatorics, implementation	1400	x3787
124A	The number of positions math	1000	x36634
123E	Maze dfs and similar, dp, probabilities, trees	2500	x694
123D	String string suffix structures	2300	x1185
123C	Brackets combinatorics, dp, greedy	2300	x590
123B	Squares math	1800	x1099
123A	Prime Permutation implementation, number theory, strings	1300	x3528
122B	Lucky Substring brute force, implementation	1000	x12056
122A	Lucky Division brute force, number theory	1000	x117491
121E	Lucky Array data structures	2400	x1657
121D	Lucky Segments binary search, implementation, two pointers	2500	x273
121C	Lucky Permutation brute force, combinatorics, number theory	1900	x1271
121B	Lucky Transformation strings	1500	x2537
121A	Lucky Sum implementation	1100	x8874
120J	Minimum Sum divide and conquer, geometry, sortings	1900	x910
120I	Luck is in Numbers greedy	2200	x303
120H	Brevity is Soul of Wit graph matchings	1800	x1357
120G	Boom implementation	1800	x683
120F	Spiders dp, greedy, trees	1400	x3518
120E	Put Knight! games, math	1400	x2652