Problemset - Codeforces

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Problems

#	Name
1866H	Happy Sets combinatorics	2100	x1525
1634F	Fibonacci Additions brute force, data structures, hashing, implementation, math	2700	x1525
1329C	Drazil Likes Heap constructive algorithms, data structures, greedy, implementation	2400	x1525
1045G	AI robots data structures	2200	x1525
163E	e-Government data structures, dfs and similar, dp, strings, trees	2800	x1525
1805E	There Should Be a Lot of Maximums brute force, data structures, dfs and similar, dp, trees, two pointers	2300	x1524
396C	On Changing Tree data structures, graphs, trees		x1523
130A	Hexagonal numbers *special problem, implementation	900	x1522
1746F	Kazaee data structures, hashing, probabilities	2800	x1520
1626E	Black and White Tree dfs and similar, greedy, trees	2400	x1520
1080D	Olya and magical square constructive algorithms, implementation, math	2000	x1520
5D	Follow Traffic Rules implementation, math	2100	x1519
1798E	Multitest Generator brute force, dp	2300	x1518
1713E	Cross Swapping 2-sat, data structures, dsu, greedy, matrices	2400	x1517
1667C	Half Queen Cover constructive algorithms, math	2400	x1516
513C	Second price auction bitmasks, probabilities	2000	x1516
490E	Restoring Increasing Sequence binary search, brute force, greedy, implementation	2000	x1516
290C	WTF? *special problem, graph matchings, implementation, trees	1700	x1516
1718C	Tonya and Burenka-179 data structures, greedy, math, number theory	2400	x1515
1607G	Banquet Preparations 1 greedy	2200	x1515
234D	Cinema implementation	1600	x1515
594D	REQ data structures, number theory	2500	x1512
245C	Game with Coins greedy	1700	x1512
223C	Partial Sums combinatorics, math, number theory	1900	x1512
16D	Logging implementation, strings	1900	x1512
660F	Bear and Bowling 4 binary search, data structures, divide and conquer, geometry, ternary search	2500	x1511
351E	Jeff and Permutation greedy	2200	x1510
1929E	Sasha and the Happy Tree Cutting bitmasks, brute force, dfs and similar, dp, graphs, greedy, math, trees	2300	x1509
837E	Vasya's Function binary search, implementation, math	2100	x1509
285D	Permutation Sum bitmasks, combinatorics, dp, implementation, meet-in-the-middle	1900	x1509
1866G	Grouped Carriages binary search, data structures, dp, flows, greedy	2100	x1508
1630D	Flipping Range constructive algorithms, dp, greedy, number theory	2400	x1508
17E	Palisection strings	2900	x1508
1849E	Max to the Right of Min binary search, data structures, divide and conquer, dp, dsu, two pointers	2300	x1507
1027F	Session in BSU binary search, dfs and similar, dsu, graph matchings, graphs	2400	x1506
1874C	Jellyfish and EVA dp, graphs, greedy, math, probabilities	2300	x1504
1197E	Culture Code binary search, combinatorics, data structures, dp, shortest paths, sortings	2300	x1504
995A	Tesla constructive algorithms, implementation	2100	x1502
847I	Noise Level dfs and similar, implementation, math	1900	x1502
1826E	Walk the Runway bitmasks, brute force, data structures, dp, graphs, implementation, sortings	2400	x1501
370C	Mittens constructive algorithms, greedy, sortings	1800	x1501
538E	Demiurges Play Again dfs and similar, dp, math, trees	2200	x1499
37C	Old Berland Language data structures, greedy, trees	1900	x1499
538F	A Heap of Heaps brute force, data structures, math, sortings	2200	x1498
847K	Travel Cards greedy, implementation, sortings	1800	x1495
39F	Pacifist frogs implementation	1300	x1495
845G	Shortest Path Problem? dfs and similar, graphs, math	2300	x1493
1927G	Paint Charges data structures, dp, greedy, math	2300	x1491
74B	Train dp, games, greedy	1500	x1491
638C	Road Improvement *special problem, dfs and similar, graphs, greedy, trees	1800	x1488
912E	Prime Gift binary search, dfs and similar, math, meet-in-the-middle, number theory, two pointers	2400	x1487
1926F	Vlad and Avoiding X bitmasks, brute force, dfs and similar, dp, implementation	2200	x1485
1452E	Two Editorials brute force, dp, greedy, sortings, two pointers	2500	x1485
1093E	Intersection of Permutations data structures	2400	x1485
1497D	Genius bitmasks, dp, graphs, number theory	2500	x1483
521D	Shop greedy	2800	x1483
379D	New Year Letter bitmasks, brute force, dp	2000	x1483
1743E	FTL binary search, dp	2400	x1482
1773A	Amazing Trick constructive algorithms, graph matchings, math, probabilities	1900	x1480
993C	Careful Maneuvering bitmasks, brute force, geometry	2100	x1480
958E1	Guard Duty (easy) brute force, geometry, greedy, math	1600	x1480
1618G	Trader Problem data structures, dsu, greedy, sortings	2200	x1478
140B	New Year Cards brute force, greedy, implementation	1800	x1478
439E	Devu and Birthday Celebration combinatorics, dp, math	2100	x1477
549B	Looksery Party constructive algorithms, dfs and similar, graphs, greedy	2300	x1476
137D	Palindromes dp, strings	1900	x1476
1032E	The Unbearable Lightness of Weights dp, math	2100	x1475
858F	Wizard's Tour constructive algorithms, dfs and similar, graphs	2300	x1475
1333E	Road to 1600 brute force, constructive algorithms	2400	x1474
452D	Washer, Dryer, Folder greedy, implementation	1900	x1474
743E	Vladik and cards binary search, bitmasks, brute force, dp	2200	x1472
1843F2	Omsk Metro (hard version) data structures, dfs and similar, divide and conquer, dp, math, trees	2300	x1471
1505F	Math *special problem, math	2200	x1471
1482F	Useful Edges graphs, shortest paths	2400	x1471
869E	The Untended Antiquity data structures, hashing	2400	x1471
325B	Stadium and Games binary search, math	1800	x1471
156D	Clues combinatorics, graphs	2500	x1471
1242C	Sum Balance bitmasks, dfs and similar, dp, graphs	2400	x1470
254C	Anagram greedy, strings	1800	x1470
1137D	Cooperative Game constructive algorithms, interactive, number theory	2400	x1468
291D	Parallel Programming *special problem, greedy	1600	x1467
750E	New Year and Old Subsequence data structures, divide and conquer, dp, matrices	2600	x1466
1659E	AND-MEX Walk bitmasks, brute force, constructive algorithms, dfs and similar, dsu, graphs	2200	x1465
1276C	Beautiful Rectangle brute force, combinatorics, constructive algorithms, data structures, greedy, math	2300	x1465
1098B	Nice table brute force, constructive algorithms, greedy, math	2100	x1465
1418G	Three Occurrences data structures, divide and conquer, hashing, two pointers	2500	x1463
1227F2	Wrong Answer on test 233 (Hard Version) combinatorics, math	2400	x1461
396A	On Number of Decompositions into Multipliers combinatorics, math, number theory		x1461
1444C	Team-Building data structures, dfs and similar, dsu, graphs	2500	x1459
1633E	Spanning Tree Queries binary search, data structures, dfs and similar, dsu, graphs, greedy, math, sortings, trees	2400	x1458
1852C	Ina of the Mountain data structures, dp, greedy, math	2400	x1457
1738E	Balance Addicts combinatorics, dp, math, two pointers	2300	x1456
1895E	Infinite Card Game binary search, brute force, data structures, dfs and similar, dp, dsu, games, graphs, greedy, sortings, two pointers	2300	x1454
1463E	Plan of Lectures constructive algorithms, dfs and similar, dsu, graphs, implementation, sortings, trees	2400	x1453
314B	Sereja and Periods binary search, dfs and similar, strings	2000	x1453
234G	Practice constructive algorithms, divide and conquer, implementation	1600	x1453
1117E	Decypher the String bitmasks, chinese remainder theorem, constructive algorithms, interactive, math	2200	x1451
89A	Robbery greedy	1800	x1451
1848F	Vika and Wiki binary search, bitmasks, combinatorics, divide and conquer, dp, math	2400	x1449
1174F	Ehab and the Big Finale constructive algorithms, divide and conquer, graphs, implementation, interactive, trees	2400	x1449