Problemset - Codeforces

Please read the new rule regarding the restriction on the use of AI tools. ×

→ Pay attention

Before contest
Codeforces Round 974 (Div. 3)
06:01:25
Register now »

→ Filter Problems

Difficulty: —

Add tag

Problems

#	Name
1364E	X-OR bitmasks, constructive algorithms, divide and conquer, interactive, probabilities	2700	x1418
1364D	Ehab's Last Corollary constructive algorithms, dfs and similar, graphs, greedy, implementation, trees	2100	x4360
1364C	Ehab and Prefix MEXs brute force, constructive algorithms, greedy	1600	x13142
1363F	Rotating Substrings dp, strings	2600	x1492
1363E	Tree Shuffling dfs and similar, dp, greedy, trees	2000	x6801
1363D	Guess The Maximums binary search, implementation, interactive, math	2100	x4076
1363C	Game On Leaves games, trees	1600	x18642
1361F	Johnny and New Toy data structures, implementation, math	3300	x154
1361E	James and the Chase dfs and similar, graphs, probabilities, trees	3000	x688
1361D	Johnny and James greedy, implementation, math, trees	2900	x317
1361C	Johnny and Megan's Necklace binary search, bitmasks, constructive algorithms, dfs and similar, dsu, graphs	2500	x1624
1361B	Johnny and Grandmaster greedy, implementation, math, sortings	1900	x3621
1361A	Johnny and Contribution constructive algorithms, graphs, greedy, sortings	1700	x8414
1360H	Binary Median binary search, bitmasks, brute force, constructive algorithms	2100	x4562
1360G	A/B Matrix constructive algorithms, greedy, math	1900	x7732
1360F	Spy-string bitmasks, brute force, constructive algorithms, dp, hashing, strings	1700	x12367
1359F	RC Kaboom Show binary search, brute force, data structures, geometry, math	2900	x538
1359E	Modular Stability combinatorics, math, number theory	2000	x6100
1359D	Yet Another Yet Another Task data structures, dp, implementation, two pointers	2000	x9428
1359C	Mixing Water binary search, math	1700	x13799
1358F	Tasty Cookie binary search, constructive algorithms, greedy, implementation	2700	x448
1358E	Are You Fired? constructive algorithms, data structures, greedy, implementation	2400	x2312
1358D	The Best Vacation binary search, brute force, greedy, implementation, two pointers	1900	x8147
1358C	Celex Update math	1600	x17347
1355F	Guess Divisors Count constructive algorithms, interactive, number theory	2600	x858
1355E	Restorer Distance binary search, greedy, math, sortings, ternary search	2100	x5111
1355C	Count Triangles binary search, implementation, math, two pointers	1800	x10632
1354G	Find a Gift binary search, interactive, probabilities	2600	x783
1354F	Summoning Minions constructive algorithms, dp, flows, graph matchings, greedy, sortings	2500	x1197
1354E	Graph Coloring dfs and similar, dp, graphs	2100	x3324
1354D	Multiset binary search, data structures	1900	x8746
1354C2	Not So Simple Polygon Embedding binary search, brute force, geometry, math	2000	x6069
1353F	Decreasing Heights brute force, dp	2200	x3322
1353E	K-periodic Garland brute force, dp, greedy	1900	x7132
1353D	Constructing the Array constructive algorithms, data structures, sortings	1600	x18058
1352G	Special Permutation constructive algorithms	1600	x21117
1349F2	Slime and Sequences (Hard Version) dp, fft, math	3500	x112
1349F1	Slime and Sequences (Easy Version) dp, fft, math	3100	x412
1349E	Slime and Hats constructive algorithms, dp, greedy	3500	x92
1349D	Slime and Biscuits math, probabilities	3200	x902
1349C	Orac and Game of Life dfs and similar, graphs, implementation, shortest paths	2000	x4520
1349B	Orac and Medians constructive algorithms, greedy, math	2000	x8137
1349A	Orac and LCM data structures, math, number theory	1600	x16989
1348F	Phoenix and Memory data structures, dfs and similar, graphs, greedy	2600	x810
1348E	Phoenix and Berries brute force, dp, greedy, math	2400	x2215
1348D	Phoenix and Science binary search, constructive algorithms, greedy, implementation, math	1900	x8842
1348C	Phoenix and Distribution constructive algorithms, greedy, sortings, strings	1600	x14604
1346I	Pac-Man 2.0 *special problem, dp	2900	x49
1346H	Game with Segments *special problem, data structures, games	2700	x50
1346G	Two IP Cameras *special problem, math, number theory	2300	x135
1346F	Dune II: Battle For Arrakis *special problem, data structures, greedy, math	2000	x228
1346E	Magic Tricks *special problem, dp, graphs	1700	x378
1346D	Constructing the Dungeon *special problem, graphs, greedy	1600	x502
1346C	Spring Cleaning *special problem, greedy, sortings	1600	x605
1344F	Piet's Palette matrices	3200	x453
1344E	Train Tracks data structures, trees	3100	x459
1344D	Résumé Review binary search, greedy, math	2700	x1159
1344C	Quantifier Question dfs and similar, dp, graphs, math	2600	x1857
1344B	Monopole Magnets constructive algorithms, dfs and similar, dsu, graphs	2000	x6050
1344A	Hilbert's Hotel math, number theory, sortings	1600	x15621
1343F	Restore the Permutation by Sorted Segments brute force, constructive algorithms, data structures, greedy, implementation	2400	x1261
1343E	Weights Distributing brute force, graphs, greedy, shortest paths, sortings	2100	x5164
1343D	Constant Palindrome Sum brute force, data structures, greedy, two pointers	1700	x12635
1342F	Make It Ascending bitmasks, brute force, dp	3000	x711
1342E	Placing Rooks combinatorics, fft, math	2300	x3074
1342D	Multiple Testcases binary search, constructive algorithms, data structures, greedy, sortings, two pointers	1900	x6090
1342C	Yet Another Counting Problem math, number theory	1600	x14010
1340F	Nastya and CBS brute force, data structures, hashing	3300	x503
1340E	Nastya and Bees graphs, interactive, probabilities	3000	x53
1340D	Nastya and Time Machine constructive algorithms, dfs and similar, graphs, trees	2600	x990
1340C	Nastya and Unexpected Guest dfs and similar, dp, graphs, shortest paths	2400	x2239
1340B	Nastya and Scoreboard bitmasks, dp, graphs, greedy	1700	x7846
1338E	JYPnation graphs	3500	x241
1338D	Nested Rubber Bands constructive algorithms, dfs and similar, dp, math, trees	2700	x1012
1338C	Perfect Triples bitmasks, brute force, constructive algorithms, divide and conquer, math	2200	x3215
1338B	Edge Weight Assignment bitmasks, constructive algorithms, dfs and similar, greedy, math, trees	1800	x8445
1336F	Journey data structures, divide and conquer, graphs, trees	3500	x209
1336E2	Chiori and Doll Picking (hard version) bitmasks, brute force, combinatorics, math	3500	x304
1336E1	Chiori and Doll Picking (easy version) bitmasks, brute force, combinatorics, math	2700	x685
1336D	Yui and Mahjong Set constructive algorithms, interactive	3200	x471
1336C	Kaavi and Magic Spell dp, strings	2200	x3587
1336B	Xenia and Colorful Gems binary search, greedy, math, sortings, two pointers	1700	x11358
1336A	Linova and Kingdom dfs and similar, dp, greedy, sortings, trees	1600	x20325
1335F	Robots on a Grid data structures, dfs and similar, dsu, graphs, greedy, matrices	2200	x2184
1335E2	Three Blocks Palindrome (hard version) brute force, data structures, dp, two pointers	1800	x8340
1335E1	Three Blocks Palindrome (easy version) binary search, brute force, data structures, dp, two pointers	1700	x10835
1334G	Substring Search bitmasks, brute force, fft	2900	x363
1334F	Strange Function binary search, data structures, dp, greedy	2500	x1306
1334E	Divisor Paths combinatorics, graphs, greedy, math, number theory	2200	x2819
1334D	Minimum Euler Cycle constructive algorithms, graphs, greedy, implementation	1800	x7286
1334C	Circle of Monsters brute force, constructive algorithms, greedy, math	1600	x16573
1333F	Kate and imperfection greedy, implementation, math, number theory, sortings, two pointers	2200	x4252
1333E	Road to 1600 brute force, constructive algorithms	2400	x1692
1333D	Challenges in school №41 brute force, constructive algorithms, games, graphs, greedy, implementation, sortings	2100	x3925
1333C	Eugene and an array binary search, data structures, implementation, two pointers	1700	x12560
1332G	No Monotone Triples data structures	3100	x296
1332F	Independent Set dfs and similar, dp, trees	2500	x1000
1332E	Height All the Same combinatorics, constructive algorithms, math, matrices	2100	x3833
1332D	Walk on Matrix bitmasks, constructive algorithms, math	1700	x8174
1329E	Dreamoon Loves AA binary search, greedy	3300	x181