Problemset - Codeforces

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Codeforces Round 941 (Div. 1)
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Codeforces Round 941 (Div. 2)
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Problems

#	Name
1252G	Performance Review data structures	2100	x1359
1252F	Regular Forestation hashing, trees	2400	x866
1252E	Songwriter greedy, two pointers	2200	x1208
1252D	Find String in a Grid data structures, dp, strings, trees	3000	x324
1252C	Even Path data structures, implementation	1600	x3619
1252B	Cleaning Robots dp, trees	2300	x501
1252A	Copying Homework	1000	x5566
1251F	Red-White Fence combinatorics, fft	2500	x798
1251E2	Voting (Hard Version) binary search, data structures, greedy	2400	x2352
1251E1	Voting (Easy Version) data structures, dp, greedy	2300	x2090
1251D	Salary Changing binary search, greedy, sortings	1900	x5609
1251C	Minimize The Integer greedy, two pointers	1600	x11630
1251B	Binary Palindromes greedy, strings	1400	x10718
1251A	Broken Keyboard brute force, strings, two pointers	1000	x18771
1250N	Wires dfs and similar, graphs, greedy	2000	x1542
1250M	SmartGarden constructive algorithms, divide and conquer	2500	x350
1250L	Divide The Students binary search, greedy, math	1500	x4015
1250K	Projectors flows, graphs	3100	x150
1250J	The Parade binary search, greedy	1800	x2844
1250I	Show Must Go On binary search, brute force, greedy, shortest paths	3100	x126
1250H	Happy Birthday math	1500	x3963
1250G	Discarding Game dp, greedy, two pointers	2300	x707
1250F	Data Center brute force, implementation	800	x7131
1250E	The Coronation graphs, implementation	2300	x796
1250D	Conference Problem dp	3000	x164
1250C	Trip to Saint Petersburg data structures	2100	x1284
1250B	The Feast and the Bus brute force, constructive algorithms, greedy, math	1800	x2558
1250A	Berstagram implementation	1400	x4020
1249F	Maximum Weight Subset dp, trees	2200	x2083
1249E	By Elevator or Stairs? dp, shortest paths	1700	x9197
1249D2	Too Many Segments (hard version) data structures, greedy, sortings	1800	x4862
1249D1	Too Many Segments (easy version) greedy	1800	x4798
1249C2	Good Numbers (hard version) binary search, greedy, math, meet-in-the-middle	1500	x12193
1249C1	Good Numbers (easy version) brute force, greedy, implementation	1300	x15043
1249B2	Books Exchange (hard version) dfs and similar, dsu, math	1300	x16220
1249B1	Books Exchange (easy version) dsu, math	1000	x20074
1249A	Yet Another Dividing into Teams math	800	x21806
1248D1	The World Is Just a Programming Task (Easy Version) brute force, dp, greedy, implementation	2000	x2286
1248B	Grow The Tree greedy, math, sortings	900	x16447
1248A	Integer Points geometry, math	1000	x13749
1246F	Cursor Distance	3500	x158
1245F	Daniel and Spring Cleaning bitmasks, brute force, combinatorics, dp	2300	x1715
1245E	Hyakugoku and Ladders dp, probabilities, shortest paths	2300	x1107
1245D	Shichikuji and Power Grid dsu, graphs, greedy, shortest paths, trees	1900	x6862
1245C	Constanze's Machine dp	1400	x16726
1245B	Restricted RPS constructive algorithms, dp, greedy	1200	x13428
1245A	Good ol' Numbers Coloring math, number theory	1000	x13877
1244G	Running in Pairs constructive algorithms, greedy, math	2400	x1261
1244F	Chips constructive algorithms, implementation	2300	x1362
1244E	Minimizing Difference binary search, constructive algorithms, greedy, sortings, ternary search, two pointers	2000	x4785
1244D	Paint the Tree brute force, constructive algorithms, dp, graphs, implementation, trees	1800	x7214
1244C	The Football Season brute force, math, number theory	2000	x7407
1244B	Rooms and Staircases brute force, implementation	1000	x15093
1244A	Pens and Pencils math	800	x18797
1243B2	Character Swap (Hard Version) strings	1600	x6845
1243B1	Character Swap (Easy Version) strings	1000	x14548
1243A	Maximum Square implementation	800	x15329
1242E	Planar Perimeter constructive algorithms, graphs	3200	x127
1242D	Number Discovery math	3400	x175
1242C	Sum Balance bitmasks, dfs and similar, dp, graphs	2400	x1465
1242B	0-1 MST dfs and similar, dsu, graphs, sortings	1900	x6953
1242A	Tile Painting constructive algorithms, math, number theory	1500	x12259
1240F	Football graphs	3100	x240
1239F	Swiper, no swiping! graphs, implementation	3400	x245
1239E	Turtle dp, implementation	3100	x896
1239D	Catowice City 2-sat, dfs and similar, graph matchings, graphs	2400	x1862
1239C	Queue in the Train data structures, greedy, implementation	2300	x1304
1239B	The World Is Just a Programming Task (Hard Version) implementation	2500	x968
1239A	Ivan the Fool and the Probability Theory combinatorics, dp, math	1700	x7077
1238G	Adilbek and the Watering System data structures, greedy, sortings	2700	x390
1238F	The Maximum Subtree dfs and similar, dp, graphs, trees	2200	x1684
1238E	Keyboard Purchase bitmasks, dp	2200	x2725
1238D	AB-string binary search, combinatorics, dp, strings	1900	x5726
1238C	Standard Free2play dp, greedy, math	1600	x7095
1238B	Kill `Em All greedy, sortings	1300	x13081
1238A	Prime Subtraction math, number theory	900	x23217
1237H	Balanced Reversals constructive algorithms	3300	x303
1237G	Balanced Distribution data structures, dp, greedy	3500	x119
1237F	Balanced Domino Placements combinatorics, dp	2600	x821
1237E	Balanced Binary Search Trees dp, math	2400	x1259
1237D	Balanced Playlist binary search, data structures, implementation	2000	x3780
1237C2	Balanced Removals (Harder) binary search, constructive algorithms, divide and conquer, greedy, implementation, sortings	1900	x4126
1237C1	Balanced Removals (Easier) constructive algorithms, geometry, greedy	1700	x5856
1237B	Balanced Tunnel data structures, sortings, two pointers	1300	x14622
1237A	Balanced Rating Changes implementation, math	1000	x18509
1236F	Alice and the Cactus dfs and similar, graphs, math, probabilities	3000	x167
1236E	Alice and the Unfair Game binary search, data structures, dp, dsu	2500	x634
1236D	Alice and the Doll brute force, data structures, greedy, implementation	2300	x1643
1236C	Labs constructive algorithms, greedy, implementation	1300	x9807
1236B	Alice and the List of Presents combinatorics, math	1500	x10618
1236A	Stones brute force, greedy, math	800	x15764
1234F	Yet Another Substring Reverse bitmasks, dp	2200	x2355
1234E	Special Permutations math	2000	x2580
1234D	Distinct Characters Queries data structures	1600	x14100
1234C	Pipes dp, implementation	1500	x12183
1234B2	Social Network (hard version) data structures, implementation	1300	x16435
1234B1	Social Network (easy version) implementation	1000	x18304
1234A	Equalize Prices Again math	800	x27230
1231E	Middle-Out constructive algorithms, greedy, strings	2200	x676
1231C	Increasing Matrix greedy	1100	x3462