Problemset - Codeforces

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Codeforces Round 941 (Div. 1)
14:33:04
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Before contest
Codeforces Round 941 (Div. 2)
14:33:04
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constructive algorithms

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Problems

#	Name
1333A	Little Artem constructive algorithms	1000	x24069
1332E	Height All the Same combinatorics, constructive algorithms, math, matrices	2100	x3551
1332D	Walk on Matrix bitmasks, constructive algorithms, math	1700	x7807
1332B	Composite Coloring brute force, constructive algorithms, greedy, math, number theory	1400	x17013
1329D	Dreamoon Likes Strings constructive algorithms, data structures	3100	x367
1329C	Drazil Likes Heap constructive algorithms, data structures, greedy, implementation	2400	x1502
1329A	Dreamoon Likes Coloring constructive algorithms, greedy, implementation, math	1800	x8771
1328D	Carousel constructive algorithms, dp, graphs, greedy, math	1800	x12494
1327C	Game with Chips constructive algorithms, implementation	1600	x13032
1326A	Bad Ugly Numbers constructive algorithms, number theory	1000	x29335
1325F	Ehab's Last Theorem constructive algorithms, dfs and similar, graphs, greedy	2500	x1679
1325D	Ehab the Xorcist bitmasks, constructive algorithms, greedy, number theory	1700	x11507
1325C	Ehab and Path-etic MEXs constructive algorithms, dfs and similar, greedy, trees	1500	x12860
1325A	EhAb AnD gCd constructive algorithms, greedy, number theory	800	x38006
1322B	Present binary search, bitmasks, constructive algorithms, data structures, math, sortings	2100	x3894
1321C	Remove Adjacent brute force, constructive algorithms, greedy, strings	1600	x9493
1316D	Nash Matrix constructive algorithms, dfs and similar, graphs, implementation	2000	x3186
1316C	Primitive Primes constructive algorithms, math, ternary search	1800	x7015
1316B	String Modification brute force, constructive algorithms, implementation, sortings, strings	1400	x10963
1313B	Different Rules constructive algorithms, greedy, implementation, math	1700	x6451
1312B	Bogosort constructive algorithms, sortings	1000	x24494
1311E	Construct the Binary Tree brute force, constructive algorithms, trees	2200	x2133
1305E	Kuroni and the Score Distribution constructive algorithms, greedy, implementation, math	2200	x2902
1305D	Kuroni and the Celebration constructive algorithms, dfs and similar, interactive, trees	1900	x4740
1305B	Kuroni and Simple Strings constructive algorithms, greedy, strings, two pointers	1200	x11292
1305A	Kuroni and the Gifts brute force, constructive algorithms, greedy, sortings	800	x13766
1304D	Shortest and Longest LIS constructive algorithms, graphs, greedy, two pointers	1800	x6065
1304B	Longest Palindrome brute force, constructive algorithms, greedy, implementation, strings	1100	x17425
1302B	DAG constructive algorithms		x143
1301D	Time to Run constructive algorithms, graphs, implementation	2000	x3754
1296F	Berland Beauty constructive algorithms, dfs and similar, greedy, sortings, trees	2100	x2668
1296E1	String Coloring (easy version) constructive algorithms, dp, graphs, greedy, sortings	1800	x7086
1292E	Rin and The Unknown Flower constructive algorithms, greedy, interactive, math	3500	x327
1292B	Aroma's Search brute force, constructive algorithms, geometry, greedy, implementation	1700	x6017
1290D	Coffee Varieties (hard version) constructive algorithms, graphs, interactive	3000	x666
1290B	Irreducible Anagrams binary search, constructive algorithms, data structures, strings, two pointers	1800	x4906
1288F	Red-Blue Graph constructive algorithms, flows	2900	x443
1286F	Harry The Potter brute force, constructive algorithms, dp, fft, implementation, math	3100	x233
1286C2	Madhouse (Hard version) brute force, constructive algorithms, hashing, interactive, math	2800	x607
1286C1	Madhouse (Easy version) brute force, constructive algorithms, interactive, math	2400	x1254
1286B	Numbers on Tree constructive algorithms, data structures, dfs and similar, graphs, greedy, trees	1800	x4380
1285E	Delete a Segment brute force, constructive algorithms, data structures, dp, graphs, sortings, trees, two pointers	2300	x1659
1283F	DIY Garland constructive algorithms, greedy, trees	2200	x1639
1283C	Friends and Gifts constructive algorithms, data structures, math	1500	x12777
1282E	The Cake Is a Lie constructive algorithms, data structures, dfs and similar, graphs	2400	x990
1282D	Enchanted Artifact constructive algorithms, interactive, strings	2300	x2059
1280F	Intergalactic Sliding Puzzle combinatorics, constructive algorithms, math	3400	x56
1278E	Tests for problem D constructive algorithms, dfs and similar, divide and conquer, trees	2200	x1735
1276E	Four Stones constructive algorithms	3500	x78
1276C	Beautiful Rectangle brute force, combinatorics, constructive algorithms, data structures, greedy, math	2300	x1463
1272B	Snow Walking Robot constructive algorithms, greedy, implementation	1200	x13477
1270I	Xor on Figures constructive algorithms, fft, math	3500	x226
1270G	Subset with Zero Sum constructive algorithms, dfs and similar, graphs, math	2700	x2029
1270E	Divide Points constructive algorithms, geometry, math	2300	x2202
1270D	Strange Device constructive algorithms, interactive, math, sortings	1900	x4361
1270C	Make Good bitmasks, constructive algorithms, math	1400	x13572
1270B	Interesting Subarray constructive algorithms, greedy, math	1200	x15954
1268A	Long Beautiful Integer constructive algorithms, greedy, implementation, strings	1700	x8284
1267L	Lexicography constructive algorithms, strings	1800	x2847
1267I	Intriguing Selection brute force, constructive algorithms, implementation, interactive, sortings	2600	x727
1267H	Help BerLine constructive algorithms	3200	x101
1267D	DevOps Best Practices constructive algorithms	2800	x206
1267C	Cactus Revenge constructive algorithms	3500	x378
1266D	Decreasing Debts constructive algorithms, data structures, graphs, greedy, implementation, math, two pointers	2000	x3406
1266C	Diverse Matrix constructive algorithms, greedy, math, number theory	1400	x9346
1266B	Dice Tower constructive algorithms, math	1000	x14315
1265A	Beautiful String constructive algorithms, greedy	1000	x14761
1264F	Beautiful Fibonacci Problem constructive algorithms, number theory	3500	x832
1264E	Beautiful League constructive algorithms, flows, graph matchings	2700	x746
1264B	Beautiful Sequence brute force, constructive algorithms, greedy	1900	x5576
1256F	Equalizing Two Strings constructive algorithms, sortings, strings	2000	x3049
1255C	League of Leesins constructive algorithms, implementation	1600	x6452
1254C	Point Ordering constructive algorithms, geometry, interactive, math	2300	x1260
1254B2	Send Boxes to Alice (Hard Version) constructive algorithms, greedy, math, number theory, ternary search, two pointers	2100	x2929
1254B1	Send Boxes to Alice (Easy Version) constructive algorithms, greedy, math, number theory, ternary search, two pointers	1800	x4406
1254A	Feeding Chicken constructive algorithms, greedy, implementation	1700	x4984
1253D	Harmonious Graph constructive algorithms, dfs and similar, dsu, graphs, greedy, sortings	1700	x8821
1250M	SmartGarden constructive algorithms, divide and conquer	2500	x351
1250B	The Feast and the Bus brute force, constructive algorithms, greedy, math	1800	x2558
1245B	Restricted RPS constructive algorithms, dp, greedy	1200	x13428
1244G	Running in Pairs constructive algorithms, greedy, math	2400	x1262
1244F	Chips constructive algorithms, implementation	2300	x1362
1244E	Minimizing Difference binary search, constructive algorithms, greedy, sortings, ternary search, two pointers	2000	x4789
1244D	Paint the Tree brute force, constructive algorithms, dp, graphs, implementation, trees	1800	x7214
1242E	Planar Perimeter constructive algorithms, graphs	3200	x127
1242A	Tile Painting constructive algorithms, math, number theory	1500	x12261
1237H	Balanced Reversals constructive algorithms	3300	x303
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	x5857
1236C	Labs constructive algorithms, greedy, implementation	1300	x9814
1231E	Middle-Out constructive algorithms, greedy, strings	2200	x677
1228F	One Node is Gone constructive algorithms, implementation, trees	2500	x417
1228D	Complete Tripartite brute force, constructive algorithms, graphs, hashing, implementation	1900	x4963
1227G	Not Same constructive algorithms	2600	x953
1227C	Messy constructive algorithms	1700	x5271
1227B	Box constructive algorithms	1200	x9221
1225G	To Make 1 bitmasks, constructive algorithms, dp, greedy, number theory	3100	x521
1225F	Tree Factory constructive algorithms, greedy, trees	2500	x863
1221B	Knights constructive algorithms, greedy	1100	x11580
1218G	Alpha planetary system constructive algorithms, graphs, shortest paths	3000	x87