Problemset - Codeforces

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Codeforces Round 941 (Div. 1)
37:18:49
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Codeforces Round 941 (Div. 2)
37:18:49
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Problems

#	Name
1550D	Excellent Arrays binary search, combinatorics, constructive algorithms, implementation, math, sortings, two pointers	2300	x1779
1903E	Geo Game greedy, interactive, math	2000	x1778
1900E	Transitive Graph dfs and similar, dp, dsu, graphs, implementation	2100	x1777
1202E	You Are Given Some Strings... brute force, string suffix structures, strings	2400	x1777
208C	Police Station dp, graphs, shortest paths	1900	x1777
105A	Transmigration implementation	1700	x1777
1431A	Selling Hamburgers *special problem	800	x1776
785E	Anton and Permutation brute force, data structures	2200	x1776
240F	TorCoder data structures	2600	x1774
51A	Cheaterius's Problem implementation	1300	x1774
177D2	Encrypting Messages data structures	1500	x1770
1552E	Colors and Intervals constructive algorithms, data structures, greedy, sortings	2300	x1769
509E	Pretty Song math, strings	2000	x1768
1768E	Partial Sorting combinatorics, math, number theory	2300	x1767
1423B	Valuable Paper binary search, flows, graph matchings, graphs	1900	x1763
1165F1	Microtransactions (easy version) binary search, greedy	2000	x1763
21A	Jabber ID implementation, strings	1900	x1763
1183F	Topforces Strikes Back brute force, math, sortings	2100	x1762
467D	Fedor and Essay dfs and similar, dp, graphs, hashing, strings	2400	x1761
314C	Sereja and Subsequences data structures, dp	2000	x1759
1066F	Yet another 2D Walking dp	2100	x1758
476E	Dreamoon and Strings dp, strings	2200	x1757
1827B2	Range Sorting (Hard Version) binary search, data structures, dp, greedy	2400	x1754
513G1	Inversions problem brute force, dfs and similar, dp, meet-in-the-middle	1800	x1754
258C	Little Elephant and LCM binary search, combinatorics, dp, math	2000	x1754
85A	Domino constructive algorithms, implementation	1300	x1754
1227F1	Wrong Answer on test 233 (Easy Version) dp	2200	x1751
1219C	Periodic integer number implementation, strings	1700	x1751
808E	Selling Souvenirs binary search, dp, greedy, ternary search	2300	x1749
659F	Polycarp and Hay dfs and similar, dsu, graphs, greedy, sortings	2000	x1748
797D	Broken BST data structures, dfs and similar	2100	x1747
417B	Crash implementation	1400	x1747
1272F	Two Bracket Sequences dp, strings, two pointers	2200	x1744
77A	Heroes brute force, implementation	1400	x1741
1691E	Number of Groups data structures, dfs and similar, dsu, graphs, greedy, sortings	2300	x1740
1551F	Equidistant Vertices brute force, combinatorics, dfs and similar, dp, trees	2200	x1740
1267K	Key Storage combinatorics, math	2100	x1737
1572B	Xor of 3 brute force, constructive algorithms, greedy, two pointers	2500	x1736
1278E	Tests for problem D constructive algorithms, dfs and similar, divide and conquer, trees	2200	x1735
1144G	Two Merged Sequences dp, greedy	2400	x1735
1548C	The Three Little Pigs combinatorics, dp, fft, math	2500	x1734
1176F	Destroy it! dp, implementation, sortings	2100	x1734
910C	Minimum Sum constructive algorithms, greedy, math	1700	x1731
1907G	Lights brute force, constructive algorithms, dfs and similar, graphs, greedy, implementation	2200	x1729
1194E	Count The Rectangles bitmasks, brute force, data structures, geometry, sortings	2200	x1729
995C	Leaving the Bar brute force, data structures, geometry, greedy, math, sortings	2300	x1725
553C	Love Triangles dfs and similar, dsu, graphs	2200	x1725
1720D2	Xor-Subsequence (hard version) bitmasks, data structures, dp, strings, trees	2400	x1723
1418E	Expected Damage binary search, combinatorics, probabilities	2400	x1722
551D	GukiZ and Binary Operations combinatorics, implementation, math, matrices, number theory	2100	x1722
1943C	Tree Compass constructive algorithms, dfs and similar, greedy, trees	2300	x1721
1505E	Cakewalk *special problem, greedy, implementation, shortest paths	1800	x1719
990G	GCD Counting divide and conquer, dp, dsu, number theory, trees	2400	x1719
886D	Restoration of string constructive algorithms, graphs, implementation	2000	x1719
180E	Cubes binary search, dp, two pointers	1800	x1719
31C	Schedule implementation	1700	x1719
1761E	Make It Connected binary search, brute force, constructive algorithms, dsu, graphs, greedy, matrices, trees, two pointers	2400	x1718
681D	Gifts by the List constructive algorithms, dfs and similar, graphs, trees	2000	x1717
223B	Two Strings data structures, dp, strings	1900	x1717
70B	Text Messaging expression parsing, greedy, strings	1600	x1716
1245F	Daniel and Spring Cleaning bitmasks, brute force, combinatorics, dp	2300	x1715
549C	The Game Of Parity games	2200	x1715
75D	Big Maximum Sum data structures, dp, greedy, implementation, math, trees	2000	x1715
1811F	Is It Flower? dfs and similar, graphs, implementation	2100	x1714
79C	Beaver data structures, dp, greedy, hashing, strings, two pointers	1800	x1714
10B	Cinema Cashier dp, implementation	1500	x1712
234F	Fence dp	1800	x1711
1621E	New School binary search, data structures, dp, greedy, implementation, sortings	2300	x1710
1582F2	Korney Korneevich and XOR (hard version) binary search, brute force, dp, greedy, two pointers	2400	x1709
1278F	Cards combinatorics, dp, math, number theory, probabilities	2600	x1709
746E	Numbers Exchange greedy, implementation, math	1900	x1709
24B	F1 Champions implementation	1500	x1709
1028D	Order book combinatorics, data structures, greedy	2100	x1708
744B	Hongcow's Game bitmasks, divide and conquer, interactive	1900	x1706
1617D2	Too Many Impostors (hard version) constructive algorithms, implementation, interactive, math	2400	x1704
1468H	K and Medians constructive algorithms, greedy, math	2200	x1702
1062E	Company binary search, data structures, dfs and similar, greedy, trees	2300	x1702
1188C	Array Beauty dp	2500	x1701
391A	Genetic Engineering implementation, two pointers		x1699
367C	Sereja and the Arrangement of Numbers graphs, greedy, sortings	2000	x1698
176B	Word Cut dp	1700	x1698
1748E	Yet Another Array Counting Problem binary search, data structures, divide and conquer, dp, flows, math, trees	2300	x1696
1158C	Permutation recovery constructive algorithms, data structures, dfs and similar, graphs, greedy, math, sortings	2100	x1696
985F	Isomorphic Strings hashing, strings	2300	x1694
594A	Warrior and Archer games	2300	x1693
590B	Chip 'n Dale Rescue Rangers binary search, geometry, math	2100	x1693
409D	Big Data *special problem	1700	x1692
1637F	Towers constructive algorithms, dfs and similar, dp, greedy, trees	2500	x1690
1840F	Railguns brute force, dfs and similar, dp, graphs	2200	x1689
213A	Game dfs and similar, greedy	1700	x1686
618D	Hamiltonian Spanning Tree dfs and similar, dp, graph matchings, greedy, trees	2200	x1685
1779E	Anya's Simultaneous Exhibition constructive algorithms, graphs, greedy, interactive, sortings	2400	x1684
1763E	Node Pairs dp, graphs, math, number theory	2200	x1684
1238F	The Maximum Subtree dfs and similar, dp, graphs, trees	2200	x1684
1777E	Edge Reverse binary search, dfs and similar, graphs, trees	2200	x1682
979D	Kuro and GCD and XOR and SUM binary search, bitmasks, brute force, data structures, dp, dsu, greedy, math, number theory, strings, trees	2200	x1681
1844E	Great Grids 2-sat, constructive algorithms, dfs and similar, dsu, graphs	2400	x1680
1515F	Phoenix and Earthquake constructive algorithms, dfs and similar, dsu, graphs, greedy, trees	2600	x1679
1325F	Ehab's Last Theorem constructive algorithms, dfs and similar, graphs, greedy	2500	x1679
1042E	Vasya and Magic Matrix dp, math, probabilities	2300	x1679