Problemset - Codeforces

Problems

#	Name
1876B	Effects of Anti Pimples combinatorics, number theory, sortings	1500	x7576
1084C	The Fair Nut and String combinatorics, dp, implementation	1500	x7576
1935D	Exam in MAC binary search, combinatorics, implementation, math	1800	x7408
1420D	Rescue Nibel! combinatorics, data structures, sortings	1800	x7353
735C	Tennis Championship combinatorics, constructive algorithms, greedy, math	1600	x7349
1866B	Battling with Numbers combinatorics, math, number theory	1400	x7259
1829H	Don't Blame Me bitmasks, combinatorics, dp, math	1700	x7143
1239A	Ivan the Fool and the Probability Theory combinatorics, dp, math	1700	x7095
1081C	Colorful Bricks combinatorics, dp, math	1500	x7058
1931F	Chat Screenshots combinatorics, dfs and similar, graphs	1700	x7035
844B	Rectangles combinatorics, math	1300	x7023
840A	Leha and Function combinatorics, greedy, math, number theory, sortings	1300	x6957
1833F	Ira and Flamenco combinatorics, constructive algorithms, data structures, implementation, math, sortings, two pointers	1700	x6772
518D	Ilya and Escalator combinatorics, dp, math, probabilities	1700	x6706
1879D	Sum of XOR Functions bitmasks, combinatorics, divide and conquer, dp, math	1700	x6652
1091D	New Year and the Permutation Concatenation combinatorics, dp, math	1700	x6606
630F	Selection of Personnel combinatorics, math	1300	x6586
489D	Unbearable Controversy of Being brute force, combinatorics, dfs and similar, graphs	1700	x6552
608B	Hamming Distance Sum combinatorics, strings	1500	x6491
1329B	Dreamoon Likes Sequences bitmasks, combinatorics, math	1700	x6407
630I	Parking Lot combinatorics, math	1700	x6332
677C	Vanya and Label bitmasks, combinatorics, implementation, strings	1500	x6293
559C	Gerald and Giant Chess combinatorics, dp, math, number theory	2200	x6172
1705D	Mark and Lightbulbs combinatorics, constructive algorithms, greedy, math, sortings	1800	x6120
459C	Pashmak and Buses combinatorics, constructive algorithms, math	1900	x6076
1444B	Divide and Sum combinatorics, math, sortings	1900	x6061
1279D	Santa's Bot combinatorics, math, probabilities	1700	x5927
1207D	Number Of Permutations combinatorics	1800	x5879
1552C	Maximize the Intersections combinatorics, constructive algorithms, geometry, greedy, sortings	1800	x5779
1359E	Modular Stability combinatorics, math, number theory	2000	x5748
1238D	AB-string binary search, combinatorics, dp, strings	1900	x5742
1102E	Monotonic Renumeration combinatorics, sortings	1700	x5676
1545B	AquaMoon and Chess combinatorics, math	1900	x5661
1750D	Count GCD combinatorics, math, number theory	1800	x5600
817B	Makes And The Product combinatorics, implementation, math, sortings	1500	x5574
204A	Little Elephant and Interval binary search, combinatorics, dp	1500	x5545
1454E	Number of Simple Paths combinatorics, dfs and similar, graphs, trees	2000	x5528
1735D	Meta-set brute force, combinatorics, data structures, hashing, math	1700	x5311
621C	Wet Shark and Flowers combinatorics, math, number theory, probabilities	1700	x5303
1749D	Counting Arrays combinatorics, dp, math, number theory	1900	x5301
895C	Square Subsets bitmasks, combinatorics, dp, math	2000	x5143
1426F	Number of Subsequences combinatorics, dp, strings	2000	x5132
1202D	Print a 1337-string... combinatorics, constructive algorithms, math, strings	1900	x5023
1954D	Colored Balls combinatorics, dp, math, sortings	1800	x5010
1371E1	Asterism (Easy Version) binary search, brute force, combinatorics, math, number theory, sortings	1900	x4960
479E	Riding in a Lift combinatorics, dp	1900	x4946
689C	Mike and Chocolate Thieves binary search, combinatorics, math	1700	x4915
630H	Benches combinatorics, math	1400	x4750
1276B	Two Fairs combinatorics, dfs and similar, dsu, graphs	1900	x4674
364A	Matrix combinatorics, data structures, implementation	1600	x4612
986B	Petr and Permutations combinatorics, math	1800	x4561
1195D2	Submarine in the Rybinsk Sea (hard edition) combinatorics, math, number theory	1800	x4556
894B	Ralph And His Magic Field combinatorics, constructive algorithms, math, number theory	1800	x4384
1043D	Mysterious Crime brute force, combinatorics, math, meet-in-the-middle, two pointers	1700	x4377
869C	The Intriguing Obsession combinatorics, dp, math	1800	x4368
711D	Directed Roads combinatorics, dfs and similar, graphs, math	1900	x4368
552D	Vanya and Triangles brute force, combinatorics, data structures, geometry, math, sortings	1900	x4361
1824B1	LuoTianyi and the Floating Islands (Easy Version) combinatorics, math, probabilities, trees	1800	x4354
1442B	Identify the Operations combinatorics, data structures, dsu, greedy, implementation	1800	x4320
1717D	Madoka and The Corruption Scheme combinatorics, constructive algorithms, greedy, math	1900	x4268
1929D	Sasha and a Walk in the City combinatorics, dp, math, trees	1900	x4214
685A	Robbers' watch brute force, combinatorics, dp, math	1700	x4146
340C	Tourist Problem combinatorics, implementation, math	1600	x4120
1857G	Counting Graphs combinatorics, divide and conquer, dsu, graphs, greedy, sortings, trees	2000	x4107
449D	Jzzhu and Numbers bitmasks, combinatorics, dp	2400	x4100
1000D	Yet Another Problem On a Subsequence combinatorics, dp	1900	x3990
401D	Roman and Numbers bitmasks, brute force, combinatorics, dp, number theory	2000	x3975
150B	Quantity of Strings combinatorics, dfs and similar, graphs, math	1600	x3975
1366E	Two Arrays binary search, brute force, combinatorics, constructive algorithms, dp, two pointers	2100	x3970
171B	Star *special problem, combinatorics	1300	x3951
1622D	Shuffle combinatorics, math, two pointers	2000	x3885
1696E	Placing Jinas combinatorics, math	2000	x3854
1508B	Almost Sorted binary search, combinatorics, constructive algorithms, implementation	1800	x3850
1172B	Nauuo and Circle combinatorics, dfs and similar, dp, trees	1900	x3768
124B	Permutations brute force, combinatorics, implementation	1400	x3764
1788D	Moving Dots binary search, brute force, combinatorics, math, two pointers	2000	x3740
294C	Shaass and Lights combinatorics, number theory	1900	x3722
9D	How many trees? combinatorics, divide and conquer, dp	1900	x3679
914C	Travelling Salesman and Special Numbers brute force, combinatorics, dp	1800	x3652
1332E	Height All the Same combinatorics, constructive algorithms, math, matrices	2100	x3614
1584D	Guess the Permutation binary search, combinatorics, interactive, math	2000	x3561
1467D	Sum of Paths combinatorics, dp, math	2200	x3544
991E	Bus Number brute force, combinatorics, math	1800	x3414
1515E	Phoenix and Computers combinatorics, dp, math	2200	x3382
1794D	Counting Factorizations combinatorics, divide and conquer, dp, math, number theory	1900	x3368
1606E	Arena combinatorics, dp, math	2100	x3358
1886D	Monocarp and the Set combinatorics, data structures, math	2100	x3343
451E	Devu and Flowers bitmasks, combinatorics, number theory	2300	x3323
107B	Basketball Team combinatorics, dp, math, probabilities	1600	x3298
1787D	Game on Axis combinatorics, dfs and similar, dsu, graphs, implementation	1900	x3278
1925D	Good Trip combinatorics, dp, math, probabilities	1900	x3269
893E	Counting Arrays combinatorics, dp, math, number theory	2000	x3267
1553E	Permutation Shift brute force, combinatorics, constructive algorithms, dfs and similar, dsu, graphs, math	2100	x3245
1777D	Score of a Tree bitmasks, combinatorics, dfs and similar, dp, math, probabilities, trees	1900	x3234
374B	Inna and Nine combinatorics, greedy	1500	x3234
1673D	Lost Arithmetic Progression combinatorics, math, number theory	1900	x3202
1271E	Common Number binary search, combinatorics, dp, math	2100	x3122
327C	Magic Five combinatorics, math	1700	x3116
652C	Foe Pairs combinatorics, sortings, two pointers	1800	x3106
500D	New Year Santa Network combinatorics, dfs and similar, graphs, trees	1900	x3069