Problemset - Codeforces

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Codeforces Round 940 (Div. 2)
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Problems

#	Name
983A	Finite or not? implementation, math	1700	x4445
1579F	Array Stabilization (AND version) brute force, graphs, math, number theory, shortest paths	1700	x4554
1042C	Array Product constructive algorithms, greedy, math	1700	x4621
578A	A Problem about Polyline geometry, math	1700	x4682
689C	Mike and Chocolate Thieves binary search, combinatorics, math	1700	x4855
1670D	Very Suspicious binary search, brute force, geometry, greedy, implementation, math	1700	x4933
923A	Primal Sport math, number theory	1700	x4962
1896D	Ones and Twos binary search, data structures, divide and conquer, math, two pointers	1700	x5101
1280A	Cut and Paste implementation, math	1700	x5145
1009C	Annoying Present greedy, math	1700	x5180
1942C2	Bessie's Birthday Cake (Hard Version) geometry, greedy, math	1700	x5200
691D	Swaps in Permutation dfs and similar, dsu, math	1700	x5226
1735D	Meta-set brute force, combinatorics, data structures, hashing, math	1700	x5251
621C	Wet Shark and Flowers combinatorics, math, number theory, probabilities	1700	x5273
625A	Guest From the Past implementation, math	1700	x5346
1561D1	Up the Strip (simplified version) brute force, data structures, dp, math, number theory	1700	x5370
1792D	Fixed Prefix Permutations binary search, bitmasks, data structures, hashing, math, sortings	1700	x5839
1279D	Santa's Bot combinatorics, math, probabilities	1700	x5844
1934C	Find a Mine binary search, constructive algorithms, geometry, greedy, interactive, math	1700	x5880
1215D	Ticket Game games, greedy, math	1700	x5957
1066E	Binary Numbers AND Sum data structures, implementation, math	1700	x5982
833A	The Meaningless Game math, number theory	1700	x6008
1111B	Average Superhero Gang Power brute force, implementation, math	1700	x6032
1901D	Yet Another Monster Fight binary search, dp, greedy, implementation, math	1700	x6050
1111C	Creative Snap binary search, brute force, divide and conquer, math	1700	x6069
1009D	Relatively Prime Graph brute force, constructive algorithms, graphs, greedy, math	1700	x6131
1562D1	Two Hundred Twenty One (easy version) data structures, dp, math	1700	x6173
1194D	1-2-K Game games, math	1700	x6175
630I	Parking Lot combinatorics, math	1700	x6250
1864D	Matrix Cascade brute force, constructive algorithms, data structures, dp, greedy, math	1700	x6279
1329B	Dreamoon Likes Sequences bitmasks, combinatorics, math	1700	x6346
1936A	Bitwise Operation Wizard bitmasks, constructive algorithms, greedy, interactive, math	1700	x6370
1868B1	Candy Party (Easy Version) bitmasks, constructive algorithms, graphs, greedy, implementation, math	1700	x6372
1313B	Different Rules constructive algorithms, greedy, implementation, math	1700	x6403
1822G1	Magic Triples (Easy Version) brute force, data structures, math, number theory	1700	x6409
1185D	Extra Element implementation, math	1700	x6417
1141E	Superhero Battle math	1700	x6434
1879D	Sum of XOR Functions bitmasks, combinatorics, divide and conquer, dp, math	1700	x6464
1091D	New Year and the Permutation Concatenation combinatorics, dp, math	1700	x6578
1833F	Ira and Flamenco combinatorics, constructive algorithms, data structures, implementation, math, sortings, two pointers	1700	x6593
1889B	Doremy's Connecting Plan constructive algorithms, greedy, math, sortings	1700	x6634
518D	Ilya and Escalator combinatorics, dp, math, probabilities	1700	x6658
1621C	Hidden Permutations dfs and similar, interactive, math	1700	x6711
1690F	Shifting String graphs, math, number theory, strings	1700	x6757
1551D1	Domino (easy version) constructive algorithms, math	1700	x6818
1618E	Singers' Tour constructive algorithms, math	1700	x6922
1829H	Don't Blame Me bitmasks, combinatorics, dp, math	1700	x6946
1660F1	Promising String (easy version) brute force, implementation, math, strings	1700	x6948
1644D	Cross Coloring data structures, implementation, math	1700	x6958
1692H	Gambling data structures, dp, greedy, math	1700	x7000
1810D	Climbing the Tree binary search, math	1700	x7022
1239A	Ivan the Fool and the Probability Theory combinatorics, dp, math	1700	x7073
1185C2	Exam in BerSU (hard version) brute force, data structures, greedy, math	1700	x7125
1114C	Trailing Loves (or L'oeufs?) brute force, implementation, math, number theory	1700	x7173
1835A	k-th equality brute force, implementation, math	1700	x7372
1543D1	RPD and Rap Sheet (Easy Version) bitmasks, constructive algorithms, interactive, math	1700	x7417
1777C	Quiz Master binary search, math, number theory, sortings, two pointers	1700	x7642
1798C	Candy Store greedy, math, number theory	1700	x7727
1512G	Short Task brute force, dp, math, number theory	1700	x7760
1916D	Mathematical Problem brute force, constructive algorithms, geometry, math	1700	x7798
1332D	Walk on Matrix bitmasks, constructive algorithms, math	1700	x7802
1260C	Infinite Fence greedy, math, number theory	1700	x7856
1702F	Equate Multisets constructive algorithms, data structures, greedy, math, number theory	1700	x7874
1497E1	Square-Free Division (easy version) data structures, dp, greedy, math, number theory, two pointers	1700	x8005
1709D	Rorororobot binary search, data structures, greedy, math	1700	x8035
1422C	Bargain combinatorics, dp, math	1700	x8059
1770C	Koxia and Number Theory brute force, chinese remainder theorem, math, number theory	1700	x8226
1557C	Moamen and XOR bitmasks, combinatorics, dp, math, matrices	1700	x8293
1715C	Monoblock combinatorics, data structures, implementation, math	1700	x8296
1061C	Multiplicity data structures, dp, implementation, math, number theory	1700	x8302
1598D	Training Session combinatorics, data structures, geometry, implementation, math	1700	x8368
1528B	Kavi on Pairing Duty combinatorics, dp, math	1700	x8431
1619E	MEX and Increments constructive algorithms, data structures, dp, greedy, implementation, math, sortings	1700	x8612
1228C	Primes and Multiplication math, number theory	1700	x8667
1216C	White Sheet geometry, math	1700	x8744
287B	Pipeline binary search, math	1700	x8766
1731C	Even Subarrays bitmasks, brute force, hashing, math, number theory	1700	x8862
1312D	Count the Arrays combinatorics, math	1700	x8880
490C	Hacking Cypher brute force, math, number theory, strings	1700	x8887
1661C	Water the Trees binary search, greedy, math	1700	x8928
1301C	Ayoub's function binary search, combinatorics, greedy, math, strings	1700	x8994
1295B	Infinite Prefixes math, strings	1700	x9042
1658C	Shinju and the Lost Permutation constructive algorithms, math	1700	x9061
1469D	Ceil Divisions brute force, constructive algorithms, math, number theory	1700	x9121
1462E2	Close Tuples (hard version) binary search, combinatorics, implementation, math, sortings, two pointers	1700	x9176
1451D	Circle Game games, geometry, math	1700	x9227
1699C	The Third Problem combinatorics, constructive algorithms, math	1700	x9341
385C	Bear and Prime Numbers binary search, brute force, data structures, dp, implementation, math, number theory	1700	x9342
1814B	Long Legs brute force, math	1700	x9435
493D	Vasya and Chess constructive algorithms, games, math	1700	x9466
1478C	Nezzar and Symmetric Array implementation, math, sortings	1700	x9467
1485C	Floor and Mod binary search, brute force, math, number theory	1700	x9489
1393C	Pinkie Pie Eats Patty-cakes constructive algorithms, greedy, math, sortings	1700	x10237
1626C	Monsters And Spells binary search, data structures, dp, greedy, implementation, math, two pointers	1700	x10563
1400B	RPG Protagonist brute force, greedy, math	1700	x10818
1336B	Xenia and Colorful Gems binary search, greedy, math, sortings, two pointers	1700	x10959
546D	Soldier and Number Game constructive algorithms, dp, math, number theory	1700	x11166
1368D	AND, OR and square sum bitmasks, greedy, math	1700	x11174
1516C	Baby Ehab Partitions Again bitmasks, constructive algorithms, dp, math	1700	x11475
1537D	Deleting Divisors games, math, number theory	1700	x11804