Problemset - Codeforces

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Codeforces Round 940 (Div. 2) and CodeCraft-23
40:34:47
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Problems

#	Name
1852C	Ina of the Mountain data structures, dp, greedy, math	2400	x1423
258B	Little Elephant and Elections brute force, combinatorics, dp	1900	x1415
182E	Wooden Fence dp	1800	x1411
313D	Ilya and Roads dp	2100	x1410
552E	Vanya and Brackets brute force, dp, expression parsing, greedy, implementation, strings	2100	x1408
821E	Okabe and El Psy Kongroo dp, matrices	2100	x1407
279E	Beautiful Decomposition dp, games, greedy, number theory	1900	x1407
1743F	Intersection and Union data structures, dp, matrices, probabilities	2300	x1405
1741G	Kirill and Company bitmasks, brute force, dfs and similar, dp, flows, graphs, shortest paths	2200	x1402
1499E	Chaotic Merge combinatorics, dp, math, strings	2400	x1402
1132E	Knapsack dfs and similar, dp, greedy	2300	x1396
1088E	Ehab and a component choosing problem dp, greedy, math, trees	2400	x1394
500E	New Year Domino data structures, dp, dsu	2300	x1387
416E	President's Path dp, graphs, shortest paths	2500	x1386
232B	Table bitmasks, combinatorics, dp, math	1900	x1386
1572C	Paint dp, greedy	2700	x1384
1854C	Expected Destruction combinatorics, dp, math, probabilities	2500	x1383
1819C	The Fox and the Complete Tree Traversal constructive algorithms, dp, implementation, math, trees	2400	x1382
95E	Lucky Country dp, dsu, graphs	2500	x1379
1663D	Is it rated - 3 *special problem, combinatorics, dp, math		x1378
587B	Duff in Beach dp	2100	x1374
731E	Funny Game dp, games	2200	x1373
282D	Yet Another Number Game dp, games	2100	x1372
1650F	Vitaly and Advanced Useless Algorithms dp, greedy, implementation	2200	x1370
852B	Neural Network country dp, matrices	2000	x1366
1096G	Lucky Tickets divide and conquer, dp, fft	2400	x1364
1601D	Difficult Mountain data structures, dp, greedy, sortings	2700	x1361
1780F	Three Chairs bitmasks, brute force, combinatorics, data structures, dp, number theory, sortings	2300	x1360
261B	Maxim and Restaurant dp, math, probabilities	1900	x1359
514E	Darth Vader and Tree dp, matrices	2200	x1355
115E	Linear Kingdom Races data structures, dp	2400	x1353
1804E	Routing bitmasks, brute force, dfs and similar, dp, graphs	2400	x1352
1059E	Split the Tree binary search, data structures, dp, greedy, trees	2400	x1349
850C	Arpa and a game with Mojtaba bitmasks, dp, games	2200	x1348
1838E	Count Supersequences combinatorics, dp, math	2500	x1347
1174E	Ehab and the Expected GCD Problem combinatorics, dp, math, number theory	2500	x1345
543C	Remembering Strings bitmasks, dp	2500	x1345
1901E	Compressed Tree dfs and similar, dp, graphs, greedy, sortings, trees	2200	x1343
1750E	Bracket Cost binary search, data structures, divide and conquer, dp, greedy, strings	2400	x1342
208B	Solitaire dfs and similar, dp	1900	x1338
327E	Axis Walking bitmasks, combinatorics, constructive algorithms, dp, meet-in-the-middle	2300	x1336
1467E	Distinctive Roots in a Tree data structures, dfs and similar, dp, trees	2500	x1328
67D	Optical Experiment binary search, data structures, dp	1900	x1328
965E	Short Code data structures, dp, greedy, strings, trees	2200	x1324
1562E	Rescue Niwen! dp, greedy, string suffix structures, strings	2500	x1323
1156F	Card Bag dp, math, probabilities	2300	x1320
1598F	RBS binary search, bitmasks, brute force, data structures, dp	2400	x1318
1886E	I Wanna be the Team Leader bitmasks, constructive algorithms, dp, greedy, math, sortings, two pointers	2400	x1310
643C	Levels and Regions dp	2400	x1309
576D	Flights for Regular Customers dp, matrices	2700	x1302
87C	Interesting Game dp, games, math	2000	x1301
1856E2	PermuTree (hard version) bitmasks, dfs and similar, dp, fft, greedy, implementation, math, trees	2700	x1298
1387B1	Village (Minimum) *special problem, dp, greedy, trees	2100	x1297
1792E	Divisors and Table brute force, dfs and similar, dp, number theory	2400	x1295
825F	String Compression dp, hashing, string suffix structures, strings	2400	x1295
1770E	Koxia and Tree combinatorics, dfs and similar, dp, dsu, math, probabilities, trees	2400	x1289
1666J	Job Lookup constructive algorithms, dp, shortest paths, trees	2100	x1287
201C	Fragile Bridges dp	2000	x1287
601C	Kleofáš and the n-thlon dp, math, probabilities	2300	x1284
762D	Maximum path dp, greedy, implementation	2300	x1283
1310D	Tourism dp, graphs, probabilities	2300	x1277
908G	New Year and Original Order dp, math	2800	x1277
1363F	Rotating Substrings dp, strings	2600	x1275
1304F2	Animal Observation (hard version) data structures, dp, greedy	2400	x1273
698C	LRU bitmasks, dp, math, probabilities	2400	x1272
1065D	Three Pieces dfs and similar, dp, shortest paths	2200	x1266
1906E	Merge Not Sort constructive algorithms, dp	1900	x1265
1710C	XOR Triangle bitmasks, brute force, constructive algorithms, dp, greedy, math	2500	x1265
757D	Felicity's Big Secret Revealed bitmasks, dp	2200	x1265
1109D	Sasha and Interesting Fact from Graph Theory brute force, combinatorics, dp, math, trees	2400	x1263
757E	Bash Plays with Functions brute force, combinatorics, dp, number theory	2500	x1263
1237E	Balanced Binary Search Trees dp, math	2400	x1258
1120D	Power Tree dfs and similar, dp, dsu, graphs, greedy, trees	2500	x1256
804D	Expected diameter of a tree binary search, brute force, dfs and similar, dp, sortings, trees	2500	x1255
111C	Petya and Spiders bitmasks, dp, dsu	2100	x1255
1845E	Boxes and Balls dp, implementation, math	2500	x1253
1101F	Trucks and Cities binary search, dp	2400	x1251
765E	Tree Folding dfs and similar, dp, greedy, implementation, trees	2200	x1245
54C	First Digit Law dp, math, probabilities	2000	x1242
1808E1	Minibuses on Venus (easy version) combinatorics, divide and conquer, dp	2200	x1240
691F	Couple Cover brute force, dp, number theory	2200	x1240
1776B	Vittorio Plays with LEGO Bricks dp, geometry	2200	x1236
1824C	LuoTianyi and XOR-Tree data structures, dfs and similar, dp, dsu, greedy, trees	2500	x1234
1499F	Diameter Cuts combinatorics, dfs and similar, dp, trees	2400	x1234
755F	PolandBall and Gifts bitmasks, dp, greedy	2600	x1232
283C	Coin Troubles dp	2100	x1229
1736C2	Good Subarrays (Hard Version) binary search, data structures, dp, two pointers	2400	x1226
1814E	Chain Chips data structures, dp, matrices	2300	x1223
1575L	Longest Array Deconstruction data structures, divide and conquer, dp, sortings	2100	x1221
724E	Goods transportation dp, flows, greedy	2900	x1219
516D	Drazil and Morning Exercise dfs and similar, dp, dsu, trees, two pointers	2800	x1219
1779F	Xorcerer's Stones bitmasks, constructive algorithms, dp, trees	2500	x1213
645E	Intellectual Inquiry dp, greedy, strings	2200	x1213
1485E	Move and Swap dfs and similar, dp, greedy, trees	2500	x1212
696D	Legen... data structures, dp, matrices, strings	2500	x1212
1163D	Mysterious Code dp, strings	2100	x1208
258D	Little Elephant and Broken Sorting dp, math, probabilities	2600	x1204
1044C	Optimal Polygon Perimeter dp, geometry	2100	x1198
1914G2	Light Bulbs (Hard Version) combinatorics, data structures, dfs and similar, dp, graphs, hashing	2300	x1197
1301E	Nanosoft binary search, data structures, dp, implementation	2500	x1192