Problemset - Codeforces

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Problems

#	Name
933B	A Determined Cleanup math	2000	x1873
1120C	Compress String dp, strings	2100	x1871
975D	Ghosts geometry, math	2000	x1869
1027E	Inverse Coloring combinatorics, dp, math	2100	x1859
333D	Characteristics of Rectangles binary search, bitmasks, brute force, implementation, sortings	2100	x1847
1083B	The Fair Nut and Strings greedy, strings	2000	x1845
954E	Water Taps binary search, greedy, sortings	2000	x1833
676D	Theseus and labyrinth graphs, implementation, shortest paths	2000	x1828
919E	Congruence Equation chinese remainder theorem, math, number theory	2100	x1825
1900E	Transitive Graph dfs and similar, dp, dsu, graphs, implementation	2100	x1817
748D	Santa Claus and a Palindrome constructive algorithms, data structures, greedy	2100	x1811
412D	Giving Awards dfs and similar	2000	x1809
689E	Mike and Geometry Problem combinatorics, data structures, dp, geometry, implementation	2000	x1808
242D	Dispute dfs and similar, graphs, greedy	2100	x1806
1185F	Two Pizzas bitmasks, brute force	2100	x1801
78C	Beaver Game dp, games, number theory	2000	x1801
1510D	Digits dp, math, number theory	2100	x1798
1903E	Geo Game greedy, interactive, math	2000	x1796
1252K	Addition Robot data structures, math, matrices	2100	x1785
549H	Degenerate Matrix binary search, math	2100	x1785
509E	Pretty Song math, strings	2000	x1771
1183F	Topforces Strikes Back brute force, math, sortings	2100	x1766
1165F1	Microtransactions (easy version) binary search, greedy	2000	x1765
1066F	Yet another 2D Walking dp	2100	x1760
314C	Sereja and Subsequences data structures, dp	2000	x1760
258C	Little Elephant and LCM binary search, combinatorics, dp, math	2000	x1757
797D	Broken BST data structures, dfs and similar	2100	x1750
659F	Polycarp and Hay dfs and similar, dsu, graphs, greedy, sortings	2000	x1750
1176F	Destroy it! dp, implementation, sortings	2100	x1742
1267K	Key Storage combinatorics, math	2100	x1738
75D	Big Maximum Sum data structures, dp, greedy, implementation, math, trees	2000	x1731
1811F	Is It Flower? dfs and similar, graphs, implementation	2100	x1727
551D	GukiZ and Binary Operations combinatorics, implementation, math, matrices, number theory	2100	x1723
886D	Restoration of string constructive algorithms, graphs, implementation	2000	x1720
681D	Gifts by the List constructive algorithms, dfs and similar, graphs, trees	2000	x1718
1028D	Order book combinatorics, data structures, greedy	2100	x1710
590B	Chip 'n Dale Rescue Rangers binary search, geometry, math	2100	x1705
367C	Sereja and the Arrangement of Numbers graphs, greedy, sortings	2000	x1702
1158C	Permutation recovery constructive algorithms, data structures, dfs and similar, graphs, greedy, math, sortings	2100	x1697
960D	Full Binary Tree Queries brute force, implementation, trees	2100	x1680
909D	Colorful Points data structures, greedy, implementation	2100	x1679
1914G1	Light Bulbs (Easy Version) brute force, combinatorics, dfs and similar, dp, dsu, graphs, math, trees	2100	x1673
916B	Jamie and Binary Sequence (changed after round) bitmasks, greedy, math	2000	x1671
464B	Restore Cube brute force, geometry	2000	x1663
295C	Greg and Friends combinatorics, dp, graphs, shortest paths	2100	x1654
464C	Substitutes in Number dp	2100	x1651
862D	Mahmoud and Ehab and the binary string binary search, divide and conquer, interactive	2000	x1650
859E	Desk Disorder combinatorics, dfs and similar, dsu, graphs, trees	2100	x1643
496E	Distributing Parts greedy, sortings	2100	x1629
1092E	Minimal Diameter Forest constructive algorithms, dfs and similar, greedy, trees	2000	x1620
662D	International Olympiad constructive algorithms, greedy, implementation, math	2000	x1616
827C	DNA Evolution data structures, strings	2100	x1612
1005F	Berland and the Shortest Paths brute force, dfs and similar, graphs, shortest paths	2100	x1610
269C	Flawed Flow constructive algorithms, flows, graphs, greedy	2100	x1596
489F	Special Matrices combinatorics, dp	2100	x1595
237E	Build String flows, graphs	2000	x1595
992D	Nastya and a Game brute force, implementation, math	2100	x1594
492E	Vanya and Field math	2000	x1586
703C	Chris and Road geometry, implementation	2100	x1584
165D	Beard Graph data structures, dsu, trees	2100	x1584
793D	Presents in Bankopolis dp, graphs, shortest paths	2100	x1576
732E	Sockets greedy, sortings	2100	x1576
899F	Letters Removing data structures, strings	2100	x1574
576B	Invariance of Tree constructive algorithms, dfs and similar, greedy, trees	2100	x1572
1599C	Bubble Strike combinatorics, math, probabilities, ternary search	2000	x1555
276E	Little Girl and Problem on Trees data structures, graphs, trees	2100	x1544
1250N	Wires dfs and similar, graphs, greedy	2000	x1543
317B	Ants brute force, implementation	2000	x1542
231E	Cactus data structures, dfs and similar, dp, graphs, trees	2100	x1539
1725C	Circular Mirror binary search, combinatorics, geometry, math, two pointers	2000	x1538
520D	Cubes games, greedy, implementation	2100	x1533
811D	Vladik and Favorite Game constructive algorithms, dfs and similar, graphs, interactive	2100	x1526
56D	Changing a String dp	2100	x1526
1866H	Happy Sets combinatorics	2100	x1522
1080D	Olya and magical square constructive algorithms, implementation, math	2000	x1520
5D	Follow Traffic Rules implementation, math	2100	x1519
513C	Second price auction bitmasks, probabilities	2000	x1516
490E	Restoring Increasing Sequence binary search, brute force, greedy, implementation	2000	x1516
837E	Vasya's Function binary search, implementation, math	2100	x1509
1866G	Grouped Carriages binary search, data structures, dp, flows, greedy	2100	x1504
995A	Tesla constructive algorithms, implementation	2100	x1502
379D	New Year Letter bitmasks, brute force, dp	2000	x1483
993C	Careful Maneuvering bitmasks, brute force, geometry	2100	x1480
1032E	The Unbearable Lightness of Weights dp, math	2100	x1474
439E	Devu and Birthday Celebration combinatorics, dp, math	2100	x1474
1098B	Nice table brute force, constructive algorithms, greedy, math	2100	x1465
314B	Sereja and Periods binary search, dfs and similar, strings	2000	x1453
280A	Rectangle Puzzle geometry	2000	x1443
748E	Santa Claus and Tangerines binary search, data structures, greedy, two pointers	2100	x1441
190E	Counter Attack data structures, dsu, graphs, hashing, sortings	2100	x1433
313D	Ilya and Roads dp	2100	x1420
821E	Okabe and El Psy Kongroo dp, matrices	2100	x1415
552E	Vanya and Brackets brute force, dp, expression parsing, greedy, implementation, strings	2100	x1409
171E	MYSTERIOUS LANGUAGE *special problem	2000	x1401
452C	Magic Trick combinatorics, math, probabilities	2100	x1395
427E	Police Patrol greedy, implementation, math, ternary search	2000	x1395
10C	Digital Root number theory	2000	x1391
862E	Mahmoud and Ehab and the function binary search, data structures, sortings	2100	x1388
853C	Boredom data structures	2100	x1387
463E	Caisa and Tree brute force, dfs and similar, math, number theory, trees	2100	x1386