Problemset - Codeforces

→ Pay attention

Before contest
Codeforces Round 973 (Div. 2)
13:54:13
Register now »

*has extra registration

→ Filter Problems

Difficulty: —

Add tag

Problems

#	Name
1879D	Sum of XOR Functions bitmasks, combinatorics, divide and conquer, dp, math	1700	x7289
1879C	Make it Alternating combinatorics, dp, greedy	1300	x16763
1876E	Ball-Stackable constructive algorithms, data structures, dp, trees	3300	x267
1875D	Jellyfish and Mex dp	1600	x8548
1874G	Jellyfish and Inscryption dp	3500	x83
1874F	Jellyfish and OEIS dp	3500	x200
1874E	Jellyfish and Hack dp, math	3000	x310
1874D	Jellyfish and Miku divide and conquer, dp, math, probabilities	2800	x713
1874C	Jellyfish and EVA dp, graphs, greedy, math, probabilities	2300	x1618
1874B	Jellyfish and Math bitmasks, brute force, dfs and similar, dp, graphs, shortest paths	2400	x1136
1872E	Data Structures Fan binary search, bitmasks, data structures, dp	1500	x13435
1870E	Another MEX Problem bitmasks, brute force, dp, shortest paths	2300	x2333
1870C	Colorful Table binary search, data structures, dp, implementation, math, two pointers	1300	x11407
1868E	Min-Sum-Max constructive algorithms, dp, greedy	3500	x84
1868C	Travel Plan combinatorics, dp, implementation, math, trees	2400	x1135
1868B2	Candy Party (Hard Version) bitmasks, constructive algorithms, dp, greedy, implementation, math	2100	x2381
1866M	Mighty Rock Tower brute force, combinatorics, dp, math, probabilities	2400	x757
1866K	Keen Tree Calculation binary search, data structures, dp, geometry, graphs, implementation, trees	2500	x442
1866J	Jackets and Packets dp	2800	x288
1866I	Imagination Castle dp, games, two pointers	2300	x728
1866G	Grouped Carriages binary search, data structures, dp, flows, greedy	2100	x1664
1866E	Elevators of Tamem dp	2700	x403
1866D	Digital Wallet dp, greedy	2300	x1296
1866C	Completely Searching for Inversions dfs and similar, dp, graphs	1900	x3022
1864H	Asterism Stream dp, math, matrices	3200	x278
1864D	Matrix Cascade brute force, constructive algorithms, data structures, dp, greedy, math	1700	x6727
1863I	Redundant Routes constructive algorithms, dp, trees	3500	x77
1863H	Goldberg Machine 3 dp, trees	3500	x76
1863G	Swaps combinatorics, dp, graphs, math	2800	x607
1863F	Divide, XOR, and Conquer bitmasks, dp, math	2600	x1117
1863E	Speedrun brute force, dfs and similar, dp, graphs, greedy, math, sortings, two pointers	2100	x2746
1862F	Magic Will Save the World binary search, bitmasks, brute force, dp	1800	x6203
1862A	Gift Carpet dp, greedy, implementation, strings	800	x32332
1861E	Non-Intersecting Subpermutations combinatorics, dp, implementation, math	2300	x1705
1861D	Sorting By Multiplication dp, greedy	1800	x6712
1861B	Two Binary Strings constructive algorithms, dp, greedy	1000	x21237
1860D	Balanced String dp	2200	x2943
1860C	Game on Permutation data structures, dp, games, greedy	1400	x13238
1859E	Maximum Monogonosity brute force, dp, math	2500	x1764
1859D	Andrey and Escape from Capygrad binary search, data structures, dp, dsu, greedy, sortings	1800	x6955
1859C	Another Permutation Problem brute force, dp, greedy, math	1200	x16923
1858D	Trees and Segments brute force, data structures, dp, greedy, two pointers	2200	x2810
1858B	The Walkway brute force, dp, greedy, math, number theory	1500	x11248
1856E2	PermuTree (hard version) bitmasks, dfs and similar, dp, fft, greedy, implementation, math, trees	2700	x1372
1856E1	PermuTree (easy version) dfs and similar, dp, trees	1800	x5256
1856C	To Become Max binary search, brute force, data structures, dp	1600	x12228
1854F	Mark and Spaceship brute force, dp	3500	x119
1854E	Game Bundles brute force, constructive algorithms, dp, greedy, math	3000	x414
1854C	Expected Destruction combinatorics, dp, math, probabilities	2500	x1465
1854B	Earn or Unlock bitmasks, brute force, dp	2200	x3501
1852F	Panda Meetups data structures, dp, flows	3500	x106
1852D	Miriany and Matchstick constructive algorithms, dp, greedy	2800	x451
1852C	Ina of the Mountain data structures, dp, greedy, math	2400	x1538
1851E	Nastya and Potions dfs and similar, dp, graphs, sortings	1500	x10262
1849E	Max to the Right of Min binary search, data structures, divide and conquer, dp, dsu, two pointers	2300	x1632
1848F	Vika and Wiki binary search, bitmasks, combinatorics, divide and conquer, dp, math	2400	x1532
1847C	Vampiric Powers, anyone? bitmasks, brute force, dp, greedy	1400	x12813
1846G	Rudolf and CodeVid-23 bitmasks, dp, graphs, greedy, shortest paths	1900	x4362
1846C	Rudolf and the Another Competition constructive algorithms, data structures, dp, greedy, sortings	1200	x18801
1845F	Swimmers in the Pool dp, fft, math, number theory	2800	x370
1845E	Boxes and Balls dp, implementation, math	2500	x1315
1845D	Rating System binary search, brute force, data structures, dp, dsu, greedy, math, two pointers	1800	x7765
1845C	Strong Password binary search, dp, greedy, strings	1400	x14156
1844H	Multiple of Three Cycles combinatorics, data structures, dp, dsu, math	3400	x137
1844C	Particles dp, greedy, implementation, math	1300	x15549
1843F2	Omsk Metro (hard version) data structures, dfs and similar, divide and conquer, dp, math, trees	2300	x1587
1843F1	Omsk Metro (simple version) data structures, dfs and similar, dp, graphs, greedy, math, trees	1800	x5279
1843D	Apple Tree combinatorics, dfs and similar, dp, math, trees	1200	x17939
1842I	Tenzing and Necklace divide and conquer, dp, greedy	3500	x119
1842H	Tenzing and Random Real Numbers bitmasks, dp, graphs, math, probabilities	3000	x651
1842G	Tenzing and Random Operations combinatorics, dp, math, probabilities	2800	x1022
1842E	Tenzing and Triangle data structures, dp, geometry, greedy, math	2300	x1610
1842C	Tenzing and Balls dp	1500	x12713
1841C	Ranom Numbers brute force, dp, greedy, math, strings	1800	x7785
1840F	Railguns brute force, dfs and similar, dp, graphs	2200	x1786
1839E	Decreasing Game constructive algorithms, dfs and similar, dp, greedy, interactive	2400	x1212
1839D	Ball Sorting data structures, dp, sortings	2100	x2298
1838E	Count Supersequences combinatorics, dp, math	2500	x1469
1835E	Old Mobile combinatorics, dp, probabilities	3500	x222
1833G	Ksyusha and Chinchilla constructive algorithms, dfs and similar, dp, dsu, greedy, implementation, trees	1800	x5322
1832F	Zombies binary search, dp	3200	x266
1832E	Combinatorics Problem brute force, combinatorics, dp	2200	x2149
1830F	The Third Grace data structures, dp	3200	x243
1830D	Mex Tree brute force, dp, trees	2800	x669
1830A	Copil Copac Draws Trees dfs and similar, dp, graphs, trees	1400	x13457
1829H	Don't Blame Me bitmasks, combinatorics, dp, math	1700	x7683
1829G	Hits Different data structures, dp, implementation, math	1600	x10339
1829D	Gold Rush brute force, dfs and similar, dp, implementation	1000	x26149
1827C	Palindrome Partition binary search, brute force, data structures, dp, hashing, strings	2600	x1199
1827B2	Range Sorting (Hard Version) binary search, data structures, dp, greedy	2400	x1861
1827B1	Range Sorting (Easy Version) binary search, dp, dsu, greedy, trees, two pointers	2000	x3855
1826E	Walk the Runway bitmasks, brute force, data structures, dp, graphs, implementation, sortings	2400	x1591
1826D	Running Miles brute force, dp, greedy	1700	x9662
1824C	LuoTianyi and XOR-Tree data structures, dfs and similar, dp, dsu, greedy, trees	2500	x1379
1823F	Random Walk dp, graphs, math, probabilities, trees	2600	x868
1823E	Removing Graph brute force, dp, games, graphs, math	2500	x1232
1822F	Gardening Friends brute force, dfs and similar, dp, graphs, trees	1700	x6093
1821F	Timber combinatorics, dp, fft, math	2600	x740
1821E	Rearrange Brackets brute force, dp, greedy, sortings, strings	2100	x2357
1819F	Willy-nilly, Crack, Into Release! data structures, dp	3500	x131