Problemset - Codeforces

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Codeforces Round #630 (Div. 2)
2 days
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Problems

#	Name
1324D	Pair of Topics binary search, data structures, sortings, two pointers	1400	x8756
1312B	Bogosort constructive algorithms, sortings	1000	x11479
1322B	Present binary search, bitmasks, constructive algorithms, data structures, math, sortings	2100	x1885
1316E	Team Building bitmasks, dp, greedy, sortings	2300	x1309
1316B	String Modification brute force, constructive algorithms, implementation, sortings, strings	1400	x6258
1305A	Kuroni and the Gifts brute force, constructive algorithms, greedy, sortings	800	x9339
1320C	World of Darkraft: Battle for Azathoth brute force, data structures, sortings	2000	x1710
1320A	Journey Planning data structures, dp, greedy, math, sortings	1400	x7122
1297F	Movie Fan *special problem, data structures, greedy, implementation, sortings		x82
1297D	Bonus Distribution *special problem, binary search, greedy, sortings		x206
1297B	Cartoons *special problem, implementation, sortings		x285
1311F	Moving Points data structures, divide and conquer, implementation, sortings	2100	x1792
1311B	WeirdSort dfs and similar, sortings	1200	x9459
1310A	Recommendations data structures, greedy, sortings	1700	x2709
1307D	Cow and Fields binary search, data structures, dfs and similar, graphs, greedy, shortest paths, sortings	1900	x3133
1304C	Air Conditioner dp, greedy, implementation, sortings, two pointers	1500	x7494
1300B	Assigning to Classes greedy, implementation, sortings	1000	x10644
1296F	Berland Beauty constructive algorithms, dfs and similar, greedy, sortings, trees	2400	x1477
1296E1	String Coloring (easy version) constructive algorithms, dp, graphs, greedy, sortings	1800	x3560
1296D	Fight with Monsters greedy, sortings	1500	x7492
1294B	Collecting Packages implementation, sortings	1200	x12038
1285E	Delete a Segment brute force, constructive algorithms, data structures, dp, graphs, sortings, trees, two pointers	2300	x960
1286A	Garland dp, greedy, sortings	1700	x4505
1284E	New Year and Castle Construction combinatorics, geometry, math, sortings	2500	x667
1284D	New Year and Conference binary search, data structures, hashing, sortings	2100	x1977
1284B	New Year and Ascent Sequence binary search, combinatorics, data structures, dp, implementation, sortings	1500	x6702
1270D	Strange Device constructive algorithms, interactive, math, sortings	1900	x3062
1282C	Petya and Exam greedy, sortings, two pointers	1800	x2635
1282B2	K for the Price of One (Hard Version) dp, greedy, sortings	1600	x5282
1282B1	K for the Price of One (Easy Version) dp, greedy, sortings	1400	x6277
1269B	Modulo Equality brute force, sortings	1500	x5260
1271D	Portals data structures, dp, greedy, implementation, sortings	2100	x1253
1272A	Three Friends brute force, greedy, math, sortings	900	x11168
1267I	Intriguing Selection brute force, constructive algorithms, implementation, interactive, sortings	2700	x420
1260D	A Game with Traps binary search, dp, greedy, sortings	1900	x2195
1253E	Antenna Coverage data structures, dp, greedy, sortings	2200	x1572
1253D	Harmonious Graph constructive algorithms, dfs and similar, dsu, graphs, greedy, sortings	1700	x4381
1253C	Sweets Eating dp, greedy, math, sortings	1500	x6295
1257D	Yet Another Monster Killing Problem binary search, data structures, dp, greedy, sortings, two pointers	1700	x4285
1257C	Dominated Subarray greedy, implementation, sortings, strings, two pointers	1200	x8708
1242B	0-1 MST dfs and similar, dsu, graphs, sortings	1900	x3329
1256F	Equalizing Two Strings constructive algorithms, sortings, strings	2200	x1632
1256E	Yet Another Division Into Teams dp, greedy, sortings	2200	x2058
1251D	Salary Changing binary search, greedy, sortings	1800	x3145
1249D2	Too Many Segments (hard version) data structures, greedy, sortings	2000	x2499
1248B	Grow The Tree greedy, math, sortings	900	x8878
1237C2	Balanced Removals (Harder) binary search, constructive algorithms, divide and conquer, greedy, implementation, sortings	1900	x2655
1237B	Balanced Tunnel data structures, sortings, two pointers	1300	x7227
1244E	Minimizing Difference binary search, constructive algorithms, greedy, sortings, ternary search, two pointers	2000	x2702
1238G	Adilbek and the Watering System data structures, greedy, sortings	2700	x211
1238B	Kill `Em All greedy, sortings	1300	x8022
1223E	Paint the Tree dp, sortings, trees	2200	x1494
1216B	Shooting greedy, implementation, sortings	1000	x9886
1221F	Choose a Square binary search, data structures, sortings	2500	x526
1220A	Cards implementation, sortings, strings	600	x13704
1209E2	Rotate Columns (hard version) bitmasks, dp, greedy, sortings	2400	x925
1209E1	Rotate Columns (easy version) bitmasks, brute force, dp, greedy, sortings	2000	x1628
1211C	Ice Cream *special problem, greedy, sortings	2000	x310
1214F	Employment greedy, sortings	2700	x272
1214E	Petya and Construction Set constructive algorithms, graphs, math, sortings, trees	2000	x1683
1213G	Path Queries divide and conquer, dsu, graphs, sortings, trees	2000	x2717
1213D2	Equalizing by Division (hard version) brute force, math, sortings	1600	x5885
1206A	Choose Two Numbers math, sortings	800	x13545
1203E	Boxers greedy, sortings	1500	x6985
1201C	Maximum Median binary search, greedy, math, sortings	1400	x7105
1198C	Matching vs Independent Set constructive algorithms, graphs, greedy, sortings	2200	x1932
1198B	Welfare State binary search, brute force, data structures, sortings	1600	x5585
1198A	MP3 sortings, two pointers	1700	x5687
1196F	K-th Path brute force, constructive algorithms, shortest paths, sortings	2500	x1264
1197E	Culture Code binary search, combinatorics, data structures, dp, shortest paths, sortings	2300	x885
1197C	Array Splitting greedy, sortings	1400	x7879
1197A	DIY Wooden Ladder greedy, math, sortings	1000	x9756
1195F	Geometers Anonymous Club data structures, geometry, math, sortings	2700	x348
1194E	Count The Rectangles bitmasks, brute force, data structures, geometry, sortings	2200	x1083
1190D	Tokitsukaze and Strange Rectangle data structures, divide and conquer, sortings, two pointers	2200	x1498
1184B2	The Doctor Meets Vader (Medium) flows, graph matchings, graphs, shortest paths, sortings	2300	x395
1184B1	The Doctor Meets Vader (Easy) binary search, sortings	1400	x2475
1189B	Number Circle greedy, math, sortings	1100	x8094
1187D	Subarray Sorting data structures, sortings	2200	x1437
1183G	Candy Box (hard version) greedy, implementation, sortings	2100	x1389
1183F	Topforces Strikes Back brute force, math, sortings	2400	x1057
1183D	Candy Box (easy version) greedy, sortings	1400	x7389
1185C1	Exam in BerSU (easy version) greedy, sortings	1200	x7686
1181E2	A Story of One Country (Hard) brute force, greedy, sortings	3000	x145
1181E1	A Story of One Country (Easy) brute force, divide and conquer, sortings	2600	x263
1181D	Irrigation binary search, data structures, implementation, sortings, trees, two pointers	2100	x1185
1176F	Destroy it! dp, implementation, sortings	2500	x829
1176D	Recover it! dfs and similar, graphs, greedy, number theory, sortings	1900	x2773
1175D	Array Splitting greedy, sortings	1900	x3079
1174B	Ehab Is an Odd Person sortings	1200	x8000
1174A	Ehab Fails to Be Thanos constructive algorithms, greedy, sortings	1000	x9810
1148E	Earth Wind and Fire constructive algorithms, greedy, math, sortings, two pointers	2300	x1139
1148D	Dirty Deeds Done Dirt Cheap greedy, sortings	1800	x3105
1148C	Crazy Diamond constructive algorithms, sortings	1700	x3373
1166C	A Tale of Two Lands binary search, sortings, two pointers	1600	x5355
1167F	Scalar Queries combinatorics, data structures, math, sortings	2300	x798
1165E	Two Arrays and Sum of Functions greedy, math, sortings	1800	x3796
1165B	Polycarp Training data structures, greedy, sortings	1000	x9895
1158C	Permutation recovery constructive algorithms, data structures, dfs and similar, graphs, greedy, math, sortings	2300	x992
1158A	The Party and Sweets binary search, constructive algorithms, greedy, implementation, math, sortings, two pointers	1500	x4031

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