Problemset - Codeforces

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Problems

#	Name
474E	Pillars binary search, data structures, dp, sortings, trees	2000	x3137
474C	Captain Marmot brute force, geometry	2000	x3069
468B	Two Sets 2-sat, dfs and similar, dsu, graph matchings, greedy	2000	x3957
466E	Information Graph dfs and similar, dsu, graphs, trees	2100	x2063
466D	Increase Sequence combinatorics, dp	2100	x2845
466B	Wonder Room brute force, math	2000	x4611
464C	Substitutes in Number dp	2100	x1652
464B	Restore Cube brute force, geometry	2000	x1663
463E	Caisa and Tree brute force, dfs and similar, math, number theory, trees	2100	x1386
461B	Appleman and Tree dfs and similar, dp, trees	2000	x5342
457C	Elections brute force	2100	x869
455C	Civilization dfs and similar, dp, dsu, ternary search, trees	2100	x5162
453B	Little Pony and Harmony Chest bitmasks, brute force, dp	2000	x4531
452C	Magic Trick combinatorics, math, probabilities	2100	x1395
451D	Count Good Substrings math	2000	x4644
449B	Jzzhu and Cities graphs, greedy, shortest paths	2000	x8062
446B	DZY Loves Modification brute force, data structures, greedy	2000	x3515
441D	Valera and Swaps constructive algorithms, dsu, graphs, implementation, math, string suffix structures	2100	x1061
439E	Devu and Birthday Celebration combinatorics, dp, math	2100	x1481
435D	Special Grid brute force, dp, greedy	2000	x746
433D	Nanami's Digital Board dsu, implementation	2000	x1036
432D	Prefixes and Suffixes dp, string suffix structures, strings, two pointers	2000	x8328
431D	Random Task binary search, bitmasks, combinatorics, dp, math	2100	x2106
427E	Police Patrol greedy, implementation, math, ternary search	2000	x1396
414C	Mashmokh and Reverse Operation combinatorics, divide and conquer	2100	x2176
413D	2048 bitmasks, dp	2000	x750
412D	Giving Awards dfs and similar	2000	x1813
401D	Roman and Numbers bitmasks, brute force, combinatorics, dp, number theory	2000	x3974
400E	Inna and Binary Logic binary search, bitmasks, data structures	2100	x934
400D	Dima and Bacteria dsu, graphs, shortest paths	2000	x2803
388C	Fox and Card Game games, greedy, sortings	2000	x3095
386D	Game with Points dp, graphs, implementation, shortest paths	2100	x413
386C	Diverse Substrings dp, strings, two pointers	2000	x747
383C	Propagating tree data structures, dfs and similar, trees	2000	x6128
382B	Number Busters binary search, math	2000	x1386
380C	Sereja and Brackets data structures, schedules	2000	x13667
379D	New Year Letter bitmasks, brute force, dp	2000	x1483
374D	Inna and Sequence binary search, data structures, dp, trees	2000	x844
374A	Inna and Pink Pony greedy, implementation	2000	x2843
372C	Watching Fireworks is Fun data structures, dp, math	2100	x3646
371E	Subway Innovation greedy, math, two pointers	2000	x1208
370D	Broken Monitor brute force, constructive algorithms, greedy, implementation	2100	x613
367C	Sereja and the Arrangement of Numbers graphs, greedy, sortings	2000	x1703
366D	Dima and Trap Graph binary search, data structures, dfs and similar, dsu, shortest paths, two pointers	2000	x1270
362D	Fools and Foolproof Roads data structures, dfs and similar, dsu, graphs, greedy	2100	x896
360B	Levko and Array binary search, dp	2000	x2706
359D	Pair of Numbers binary search, brute force, data structures, math, two pointers	2000	x4849
358C	Dima and Containers constructive algorithms, greedy, implementation	2000	x1952
356C	Compartments combinatorics, constructive algorithms, greedy, implementation	2100	x1229
354C	Vasya and Beautiful Arrays brute force, dp, number theory	2100	x2983
353D	Queue constructive algorithms, dp	2000	x2730
348B	Apple Tree dfs and similar, number theory, trees	2100	x2046
346B	Lucky Common Subsequence dp, strings	2000	x3348
345C	Counting Fridays *special problem	2000	x122
345B	Triskaidekaphobia *special problem	2100	x122
343D	Water Tree data structures, dfs and similar, graphs, trees	2100	x5503
342D	Xenia and Dominoes bitmasks, dfs and similar, dp	2100	x488
340E	Iahub and Permutations combinatorics, math	2000	x2300
340B	Maximal Area Quadrilateral brute force, geometry	2100	x2026
337D	Book of Evil dfs and similar, divide and conquer, dp, trees	2000	x5839
336D	Vasily the Bear and Beautiful Strings combinatorics, math, number theory	2100	x934
335C	More Reclamation games	2100	x516
333D	Characteristics of Rectangles binary search, bitmasks, brute force, implementation, sortings	2100	x1850
321C	Ciel the Commander constructive algorithms, dfs and similar, divide and conquer, greedy, trees	2100	x6828
319C	Kalila and Dimna in the Logging Industry dp, geometry	2100	x4758
317B	Ants brute force, implementation	2000	x1547
314C	Sereja and Subsequences data structures, dp	2000	x1791
314B	Sereja and Periods binary search, dfs and similar, strings	2000	x1454
313D	Ilya and Roads dp	2100	x1425
309B	Context Advertising dp, two pointers	2100	x499
309A	Morning run binary search, math, two pointers	2000	x459
306C	White, Black and White Again combinatorics, number theory	2100	x441
306B	Optimizer data structures, greedy, sortings	2100	x437
301B	Yaroslav and Time binary search, graphs, shortest paths	2100	x2139
296B	Yaroslav and Two Strings combinatorics, dp	2000	x2084
295C	Greg and Friends combinatorics, dp, graphs, shortest paths	2100	x1659
292C	Beautiful IP Addresses brute force	2000	x933
291E	Tree-String Problem *special problem, dfs and similar, hashing, strings	2000	x1277
286C	Main Sequence greedy, implementation	2100	x1283
283C	Coin Troubles dp	2100	x1232
282D	Yet Another Number Game dp, games	2100	x1383
280A	Rectangle Puzzle geometry	2000	x1445
276E	Little Girl and Problem on Trees data structures, graphs, trees	2100	x1551
269C	Flawed Flow constructive algorithms, flows, graphs, greedy	2100	x1621
268E	Playlist math, probabilities, sortings	2100	x976
267B	Dominoes dfs and similar, graphs	2000	x614
266C	Below the Diagonal constructive algorithms, greedy, math	2100	x1335
264C	Choosing Balls dp	2000	x2684
263C	Circle of Numbers brute force, dfs and similar, implementation	2000	x1053
261C	Maxim and Matrix constructive algorithms, dp, math	2000	x760
260D	Black and White Tree constructive algorithms, dsu, graphs, greedy, trees	2100	x1315
258C	Little Elephant and LCM binary search, combinatorics, dp, math	2000	x1759
254E	Dormitory dp, implementation	2100	x485
253D	Table with Letters - 2 brute force, two pointers	2000	x810
251C	Number Transformation dp, greedy, number theory	2000	x1012
250E	Mad Joe brute force	2000	x438
248C	Robo-Footballer binary search, geometry	2000	x794
245F	Log Stream Analysis binary search, brute force, implementation, strings	2000	x860
243B	Hydra graphs, sortings	2000	x1179
242E	XOR on Segment bitmasks, data structures	2000	x8479