Problemset - Codeforces

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Codeforces Round 941 (Div. 1)
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Codeforces Round 941 (Div. 2)
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Problems

#	Name
883F	Lost in Transliteration implementation	1300	x2232
288C	Polo the Penguin and XOR operation implementation, math	1700	x2232
1598E	Staircases brute force, combinatorics, data structures, dfs and similar, dp, implementation, math	2100	x2231
209A	Multicolored Marbles dp, math	1600	x2230
113A	Grammar Lessons implementation, strings	1600	x2230
732F	Tourist Reform dfs and similar, graphs	2300	x2229
1821E	Rearrange Brackets brute force, dp, greedy, sortings, strings	2100	x2228
190D	Non-Secret Cypher two pointers	1900	x2228
526C	Om Nom and Candies brute force, greedy, math	2000	x2221
568B	Symmetric and Transitive combinatorics, dp, math	1900	x2219
237B	Young Table implementation, sortings	1500	x2218
1627E	Not Escaping data structures, dp, implementation, shortest paths, two pointers	2200	x2217
1772F	Copy of a Copy of a Copy constructive algorithms, dfs and similar, graphs, implementation, sortings	2000	x2216
149B	Martian Clock implementation	1600	x2216
327D	Block Tower constructive algorithms, dfs and similar, graphs	1900	x2215
430A	Points and Segments (easy) constructive algorithms, sortings	1600	x2214
46C	Hamsters and Tigers two pointers	1600	x2213
245D	Restoring Table constructive algorithms, greedy	1500	x2212
1741F	Multi-Colored Segments binary search, data structures, math, sortings	2000	x2211
1704E	Count Seconds brute force, constructive algorithms, dp, graphs, implementation, math	2200	x2211
1559E	Mocha and Stars combinatorics, dp, fft, math, number theory	2200	x2211
1840G1	In Search of Truth (Easy Version) constructive algorithms, interactive, math, meet-in-the-middle, probabilities	2200	x2210
1054D	Changing Array greedy, implementation	1900	x2210
891C	Envy data structures, dsu, graphs	2300	x2210
56E	Domino Principle binary search, data structures, sortings	2200	x2210
1190D	Tokitsukaze and Strange Rectangle data structures, divide and conquer, sortings, two pointers	2000	x2208
769D	k-Interesting Pairs Of Integers *special problem, bitmasks, brute force, meet-in-the-middle	1700	x2208
1399E2	Weights Division (hard version) binary search, dfs and similar, greedy, sortings, trees, two pointers	2200	x2206
241A	Old Peykan greedy	1300	x2201
1270E	Divide Points constructive algorithms, geometry, math	2300	x2200
1477C	Nezzar and Nice Beatmap constructive algorithms, geometry, greedy, math, sortings	2200	x2199
846F	Random Query data structures, math, probabilities, two pointers	1800	x2199
631E	Product Sum data structures, dp, geometry	2600	x2195
301D	Yaroslav and Divisors data structures	2200	x2195
173A	Rock-Paper-Scissors implementation, math	1300	x2195
449C	Jzzhu and Apples constructive algorithms, number theory	2500	x2193
140D	New Year Contest greedy, sortings	1800	x2191
1870E	Another MEX Problem bitmasks, brute force, dp, shortest paths	2300	x2190
767D	Cartons of milk binary search, data structures, greedy, sortings, two pointers	2100	x2189
174B	File List dp, greedy, implementation	1400	x2188
988F	Rain and Umbrellas dp	2100	x2186
555E	Case of Computer Network dfs and similar, graphs, trees	2800	x2185
986C	AND Graph bitmasks, dfs and similar, dsu, graphs	2500	x2183
1141G	Privatization of Roads in Treeland binary search, constructive algorithms, dfs and similar, graphs, greedy, trees	1900	x2182
156B	Suspects constructive algorithms, data structures, implementation	1600	x2179
925B	Resource Distribution binary search, implementation, sortings	1700	x2174
1614D2	Divan and Kostomuksha (hard version) dp, number theory	2300	x2171
1398E	Two Types of Spells binary search, data structures, greedy, implementation, math, sortings	2200	x2170
613B	Skills binary search, brute force, dp, greedy, sortings, two pointers	1900	x2170
1787E	The Harmonization of XOR bitmasks, constructive algorithms, greedy, math	2100	x2169
533E	Correcting Mistakes constructive algorithms, dp, greedy, hashing, strings, two pointers	1800	x2169
353B	Two Heaps combinatorics, constructive algorithms, greedy, implementation, math, sortings	1900	x2169
1043F	Make It One bitmasks, combinatorics, dp, math, number theory, shortest paths	2500	x2168
414C	Mashmokh and Reverse Operation combinatorics, divide and conquer	2100	x2165
41D	Pawn dp	1900	x2165
25E	Test hashing, strings	2200	x2164
1839D	Ball Sorting data structures, dp, sortings	2100	x2163
1635E	Cars 2-sat, constructive algorithms, dfs and similar, dsu, graphs, greedy, sortings	2200	x2161
976E	Well played! greedy, sortings	2100	x2161
1428F	Fruit Sequences binary search, data structures, divide and conquer, dp, two pointers	2400	x2160
484E	Sign on Fence binary search, constructive algorithms, data structures	2500	x2160
1583E	Moment of Bloom constructive algorithms, dfs and similar, graph matchings, graphs, greedy, trees	2200	x2159
1592D	Hemose in ICPC ? binary search, dfs and similar, implementation, interactive, math, number theory, trees	2300	x2156
387C	George and Number greedy, implementation	1700	x2156
15C	Industrial Nim games	2000	x2154
1401E	Divide Square data structures, geometry, implementation, sortings	2400	x2151
1933F	Turtle Mission: Robot and the Earthquake dfs and similar, dp, graphs, shortest paths	2100	x2148
1201D	Treasure Hunting binary search, dp, greedy, implementation	2100	x2146
1129B	Wrong Answer constructive algorithms	2000	x2146
145B	Lucky Number 2 constructive algorithms	1800	x2146
1881G	Anya and the Mysterious String binary search, data structures	2000	x2143
1107E	Vasya and Binary String dp	2400	x2142
1808D	Petya, Petya, Petr, and Palindromes binary search, brute force, data structures, two pointers	2100	x2140
533C	Board Game games, greedy, implementation, math	1700	x2140
510E	Fox And Dinner flows	2300	x2138
894E	Ralph and Mushrooms dp, graphs	2100	x2135
754D	Fedor and coupons binary search, data structures, greedy, sortings	2100	x2132
729E	Subordinates constructive algorithms, data structures, graphs, greedy, sortings	1900	x2132
600D	Area of Two Circles' Intersection geometry	2000	x2132
557D	Vitaly and Cycle combinatorics, dfs and similar, graphs, math	2000	x2132
325A	Square and Rectangles implementation	1500	x2132
843B	Interactive LowerBound brute force, interactive, probabilities	2000	x2131
142B	Help General constructive algorithms, greedy, implementation	1800	x2129
222D	Olympiad binary search, greedy, sortings, two pointers	1900	x2127
254B	Jury Size brute force, implementation	1500	x2126
814D	An overnight dance in discotheque dfs and similar, dp, geometry, greedy, trees	2000	x2124
549D	Haar Features greedy, implementation	1900	x2124
1876C	Autosynthesis constructive algorithms, dfs and similar, graphs, greedy, sortings	2100	x2122
1311E	Construct the Binary Tree brute force, constructive algorithms, trees	2200	x2120
630E	A rectangle math	1900	x2120
196B	Infinite Maze dfs and similar, graphs	2000	x2119
166B	Polygons geometry, sortings	2100	x2119
487E	Tourists data structures, dfs and similar, graphs, trees	3200	x2112
1108E2	Array and Segments (Hard version) data structures, implementation	2100	x2111
679B	Bear and Tower of Cubes binary search, dp, greedy	2200	x2111
379F	New Year Tree data structures, divide and conquer, trees	2400	x2109
690F1	Tree of Life (easy)	1300	x2108
1436E	Complicated Computations binary search, data structures, two pointers	2400	x2106
767B	The Queue brute force, greedy	2100	x2104
724C	Ray Tracing greedy, hashing, implementation, math, number theory, sortings	1800	x2104