Problemset - Codeforces

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Codeforces Round 974 (Div. 3)
04:39:44
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Problems

#	Name
1516B	AGAGA XOOORRR bitmasks, brute force, dp, greedy	1500	x19283
1516A	Tit for Tat greedy	800	x23370
1515I	Phoenix and Diamonds binary search, data structures, sortings	3400	x277
1515H	Phoenix and Bits bitmasks, brute force, data structures, sortings	3500	x232
1515G	Phoenix and Odometers dfs and similar, graphs, math, number theory	2700	x1006
1515F	Phoenix and Earthquake constructive algorithms, dfs and similar, dsu, graphs, greedy, trees	2600	x1769
1515E	Phoenix and Computers combinatorics, dp, math	2200	x3541
1515D	Phoenix and Socks greedy, sortings, two pointers	1500	x11355
1515C	Phoenix and Towers constructive algorithms, data structures, greedy	1400	x17066
1515B	Phoenix and Puzzle brute force, geometry, math, number theory	1000	x24827
1515A	Phoenix and Gold constructive algorithms, greedy, math	800	x20204
1514E	Baby Ehab's Hyper Apartment binary search, graphs, interactive, sortings, two pointers	2700	x611
1514D	Cut and Stick binary search, data structures, greedy, implementation, sortings	2000	x4290
1514C	Product 1 Modulo N greedy, number theory	1600	x15032
1514B	AND 0, Sum Big bitmasks, combinatorics, math	1200	x24759
1514A	Perfectly Imperfect Array math, number theory	800	x24092
1513F	Swapping Problem brute force, constructive algorithms, data structures, sortings	2500	x1261
1513E	Cost Equilibrium combinatorics, constructive algorithms, math, sortings	2300	x1497
1513D	GCD and MST constructive algorithms, dsu, graphs, greedy, number theory, sortings	2000	x5365
1513C	Add One dp, matrices	1600	x13944
1513B	AND Sequences bitmasks, combinatorics, constructive algorithms, math	1400	x14614
1513A	Array and Peaks constructive algorithms, implementation	800	x19345
1512G	Short Task brute force, dp, math, number theory	1700	x8106
1512F	Education brute force, dp, greedy, implementation	1900	x6196
1512E	Permutation by Sum brute force, greedy, math	1600	x10428
1512D	Corrupted Array constructive algorithms, data structures, greedy	1200	x22500
1512C	A-B Palindrome constructive algorithms, implementation, strings	1200	x20068
1512B	Almost Rectangle implementation	800	x25343
1512A	Spy Detected! brute force, implementation	800	x63570
1511G	Chips on a Board bitmasks, brute force, data structures, dp, games, two pointers	2700	x771
1511F	Chainword brute force, data structures, dp, matrices, string suffix structures, strings	2700	x431
1511E	Colorings and Dominoes combinatorics, dp, greedy, math	2100	x2575
1511D	Min Cost String brute force, constructive algorithms, graphs, greedy, strings	1600	x11456
1511C	Yet Another Card Deck brute force, data structures, implementation, trees	1100	x23596
1511B	GCD Length constructive algorithms, math, number theory	1100	x22820
1511A	Review Site greedy	800	x27539
1510K	King's Task brute force, graphs, implementation	1200	x5440
1510J	Japanese Game constructive algorithms, math	2700	x521
1510I	Is It Rated? greedy, interactive, math, probabilities	2700	x479
1510H	Hard Optimization dp	3200	x98
1510G	Guide	2100	x1277
1510F	Fiber Shape	2800	x58
1510E	Equilibrium Point /\textbackslash/\textbackslash	2700	x254
1510D	Digits dp, math, number theory	2100	x1892
1510C	Cactus Not Enough dfs and similar, graph matchings, graphs	2900	x212
1510B	Button Lock flows, graph matchings, graphs	2600	x741
1510A	ASCII Automata Art	3100	x154
1509C	The Sports Festival dp, greedy	1800	x12499
1509B	TMT Document greedy	1100	x21556
1509A	Average Height constructive algorithms	800	x25965
1508F	Optimal Encoding brute force, data structures	3500	x125
1508E	Tree Calendar brute force, constructive algorithms, data structures, dfs and similar, sortings, trees	3100	x346
1508D	Swap Pass constructive algorithms, geometry, sortings	3000	x566
1508C	Complete the MST bitmasks, brute force, data structures, dfs and similar, dsu, graphs, greedy, trees	2500	x1486
1508B	Almost Sorted binary search, combinatorics, constructive algorithms, implementation	1800	x3979
1508A	Binary Literature constructive algorithms, greedy, implementation, strings, two pointers	1900	x6215
1506G	Maximize the Remaining String brute force, data structures, dp, greedy, strings	2000	x4295
1506F	Triangular Paths constructive algorithms, graphs, math, shortest paths, sortings	2000	x3260
1506E	Restoring the Permutation constructive algorithms, implementation	1500	x13049
1506D	Epic Transformation constructive algorithms, data structures, greedy	1400	x21652
1506C	Double-ended Strings brute force, implementation, strings	1000	x24902
1506B	Partial Replacement greedy, implementation	1100	x20205
1506A	Strange Table math	800	x30573
1505I	Mysterious language again, seriously? *special problem	2200	x554
1505H	L BREAK into program *special problem	2500	x502
1505G	Encoded message *special problem, implementation	2600	x302
1505F	Math *special problem, math	2200	x1499
1505E	Cakewalk *special problem, greedy, implementation, shortest paths	1800	x1796
1505D	Xenolith? Hippodrome? *special problem, number theory	1800	x790
1505C	Fibonacci Words *special problem, implementation	1400	x6423
1505B	DMCA *special problem, implementation, number theory	1600	x6146
1505A	Is it rated - 2 *special problem, implementation, interactive	900	x14420
1504B	Flip the Bits constructive algorithms, greedy, implementation, math	1200	x18398
1504A	Déjà Vu constructive algorithms, strings	800	x21661
1503F	Balance the Cards constructive algorithms, data structures, divide and conquer, geometry, graphs, implementation	3500	x182
1503E	2-Coloring combinatorics, dp, math	3100	x692
1503D	Flip the Cards 2-sat, constructive algorithms, data structures, greedy, sortings, two pointers	2600	x1076
1503C	Travelling Salesman Problem binary search, data structures, dp, greedy, shortest paths, sortings, two pointers	2200	x3418
1503B	3-Coloring constructive algorithms, games, interactive	1700	x7026
1503A	Balance the Bits constructive algorithms, greedy	1600	x13375
1501B	Napoleon Cake dp, implementation, sortings	900	x19081
1501A	Alexey and Train implementation	800	x11575
1500F	Cupboards Jumps dp	3500	x349
1500E	Subset Trick binary search, data structures	3300	x216
1500D	Tiles for Bathroom data structures, sortings, two pointers	2900	x455
1500C	Matrix Sorting bitmasks, brute force, constructive algorithms, greedy, two pointers	2600	x802
1500B	Two chandeliers binary search, brute force, chinese remainder theorem, math, number theory	2200	x2038
1500A	Going Home brute force, hashing, implementation, math	1800	x8802
1499G	Graph Coloring data structures, graphs, interactive	3100	x190
1499F	Diameter Cuts combinatorics, dfs and similar, dp, trees	2400	x1320
1499E	Chaotic Merge combinatorics, dp, math, strings	2400	x1503
1499D	The Number of Pairs dp, math, number theory	2100	x5804
1499C	Minimum Grid Path brute force, data structures, greedy, math	1500	x12616
1499B	Binary Removals brute force, dp, greedy, implementation	1000	x20724
1499A	Domino on Windowsill combinatorics, constructive algorithms, math	800	x21227
1498F	Christmas Game bitmasks, data structures, dfs and similar, dp, games, math, trees	2500	x911
1498E	Two Houses brute force, graphs, greedy, interactive, sortings	2200	x1918
1498D	Bananas in a Microwave dfs and similar, dp, graphs, implementation	2200	x2319
1498C	Planar Reflections brute force, data structures, dp	1600	x9659
1498B	Box Fitting binary search, bitmasks, data structures, greedy	1300	x17020