Problemset - Codeforces

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Rayan Programming Contest 2024 - Selection (Codeforces Round, Div. 1 + Div. 2)
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brute force

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Problems

#	Name
830A	Office Keys binary search, brute force, dp, greedy, sortings	1800	x7117
825B	Five-In-a-Row brute force, implementation	1600	x4279
822D	My pretty girl Noora brute force, dp, greedy, math, number theory	1800	x3106
822B	Crossword solving brute force, implementation, strings	1000	x9552
821B	Okabe and Banana Trees brute force, math	1300	x5784
818C	Sofa Thief brute force, implementation	2000	x1255
817C	Really Big Numbers binary search, brute force, dp, math	1600	x7485
816A	Karen and Morning brute force, implementation	1000	x9150
815C	Karen and Supermarket brute force, dp, trees	2400	x2683
815B	Karen and Test brute force, combinatorics, constructive algorithms, math	2200	x1382
815A	Karen and Game brute force, greedy, implementation	1700	x5675
814C	An impassioned circulation of affection brute force, dp, strings, two pointers	1600	x6679
813B	The Golden Age brute force, math	1800	x4002
812B	Sagheer, the Hausmeister bitmasks, brute force, dp	1600	x5216
811A	Vladik and Courtesy brute force, implementation	800	x11933
807B	T-Shirt Hunt brute force, implementation	1300	x3553
804D	Expected diameter of a tree binary search, brute force, dfs and similar, dp, sortings, trees	2500	x1334
801A	Vicious Keyboard brute force	1100	x7344
799D	Field expansion brute force, dp, meet-in-the-middle	2100	x2067
799A	Carrot Cakes brute force, implementation	1100	x19044
798B	Mike and strings brute force, dp, strings	1300	x8433
798A	Mike and palindrome brute force, constructive algorithms, strings	1000	x21881
797E	Array Queries brute force, data structures, dp	2000	x4500
796A	Buying A House brute force, implementation	800	x13072
794A	Bank Robbery brute force, implementation	800	x7106
789B	Masha and geometric depression brute force, implementation, math	1700	x4388
787A	The Monster brute force, math, number theory	1200	x11460
785E	Anton and Permutation brute force, data structures	2200	x1934
784E	Twisted Circuit *special problem, brute force, implementation	2000	x1960
779B	Weird Rounding brute force, greedy	1100	x10365
778C	Peterson Polyglot brute force, dfs and similar, dsu, hashing, strings, trees	2500	x924
778B	Bitwise Formula bitmasks, brute force, dfs and similar, expression parsing, implementation	1800	x2330
777E	Hanoi Factory brute force, data structures, dp, greedy, sortings	2000	x4093
776C	Molly's Chemicals binary search, brute force, data structures, implementation, math	1800	x5958
776A	A Serial Killer brute force, implementation, strings	900	x12166
773B	Dynamic Problem Scoring brute force, greedy	2000	x1171
769D	k-Interesting Pairs Of Integers *special problem, bitmasks, brute force, meet-in-the-middle	1700	x2355
768F	Barrels and boxes brute force, combinatorics, math, number theory, probabilities	2300	x1033
768C	Jon Snow and his Favourite Number brute force, dp, implementation, sortings	1800	x3813
767B	The Queue brute force, greedy	2100	x2141
766C	Mahmoud and a Message brute force, dp, greedy, strings	1700	x4498
765G	Math, math everywhere brute force, dp, math, meet-in-the-middle, number theory	3200	x86
764A	Taymyr is calling you brute force, implementation, math	800	x16372
763C	Timofey and remoduling brute force, implementation, math, number theory	2600	x713
761F	Dasha and Photos brute force, data structures, dp, implementation	2600	x417
761D	Dasha and Very Difficult Problem binary search, brute force, constructive algorithms, greedy, sortings	1700	x4068
761C	Dasha and Password brute force, dp, implementation	1500	x5887
761B	Dasha and friends brute force, implementation, math	1300	x6880
761A	Dasha and Stairs brute force, constructive algorithms, implementation, math	1000	x14550
758F	Geometrical Progression brute force, math, number theory	2400	x639
758B	Blown Garland brute force, implementation, number theory	1100	x10225
757E	Bash Plays with Functions brute force, combinatorics, dp, number theory	2500	x1340
756D	Bacterial Melee brute force, combinatorics, dp, string suffix structures	2400	x1006
755A	PolandBall and Hypothesis brute force, graphs, math, number theory	800	x18164
754E	Dasha and cyclic table bitmasks, brute force, fft, strings, trees	2600	x503
754C	Vladik and chat brute force, constructive algorithms, dp, implementation, strings	2200	x943
754B	Ilya and tic-tac-toe game brute force, implementation	1100	x7258
753C	Interactive Bulls and Cows (Hard) brute force, constructive algorithms, interactive	2500	x308
753B	Interactive Bulls and Cows (Easy) brute force, constructive algorithms, implementation	1600	x1212
750G	New Year and Binary Tree Paths bitmasks, brute force, combinatorics, dp	3200	x452
750D	New Year and Fireworks brute force, data structures, dfs and similar, dp, implementation	1900	x3084
750A	New Year and Hurry binary search, brute force, implementation, math	800	x76678
749B	Parallelogram is Back brute force, constructive algorithms, geometry	1200	x8513
747F	Igor and Interesting Numbers brute force, combinatorics, dp, math	2500	x422
747A	Display Size brute force, math	800	x10288
744C	Hongcow Buys a Deck of Cards bitmasks, brute force, dp	2400	x1165
743E	Vladik and cards binary search, bitmasks, brute force, dp	2200	x1509
743C	Vladik and fractions brute force, constructive algorithms, math, number theory	1500	x12382
742B	Arpa’s obvious problem and Mehrdad’s terrible solution brute force, math, number theory	1500	x9315
740A	Alyona and copybooks brute force, implementation	1300	x8917
739E	Gosha is hunting brute force, data structures, dp, flows, math, probabilities, sortings	3000	x2203
734B	Anton and Digits brute force, greedy, implementation, math	800	x29496
732A	Buy a Shovel brute force, constructive algorithms, implementation, math	800	x73356
731F	Video Cards brute force, data structures, implementation, math, number theory	1900	x2879
731D	80-th Level Archeology brute force, data structures, greedy, sortings	2200	x1178
727A	Transformation: from A to B brute force, dfs and similar, math	1000	x14070
725E	Too Much Money brute force, greedy	2600	x654
725C	Hidden Word brute force, constructive algorithms, implementation, strings	1600	x2648
724B	Batch Sort brute force, greedy, implementation, math	1500	x4016
722A	Broken Clock brute force, implementation	1300	x6647
711A	Bus to Udayland brute force, implementation	800	x29573
710F	String Set Queries brute force, data structures, hashing, interactive, string suffix structures, strings	2400	x1909
710B	Optimal Point on a Line brute force, sortings	1400	x8808
706A	Beru-taxi brute force, geometry, implementation	900	x14531
704A	Thor brute force, data structures, implementation	1600	x9346
702B	Powers of Two brute force, data structures, implementation, math	1500	x11991
698D	Limak and Shooting Points brute force, geometry, math	2600	x542
697B	Barnicle brute force, implementation, math, strings	1400	x5760
696A	Lorenzo Von Matterhorn brute force, data structures, implementation, trees	1500	x6124
691F	Couple Cover brute force, dp, number theory	2200	x1308
689A	Mike and Cellphone brute force, constructive algorithms, implementation	1400	x5274
687D	Dividing Kingdom II brute force, data structures, dsu, graphs, sortings	2500	x963
685E	Travelling Through the Snow Queen's Kingdom bitmasks, brute force, divide and conquer, graphs	2800	x557
685D	Kay and Eternity brute force, implementation, sortings	2600	x485
685A	Robbers' watch brute force, combinatorics, dp, math	1700	x4253
681B	Economy Game brute force	1300	x8979
679D	Bear and Chase brute force, dfs and similar, graphs, implementation, math, probabilities	2900	x318
677E	Vanya and Balloons binary search, brute force, dp, implementation	2300	x603
675B	Restoring Painting brute force, constructive algorithms, math	1400	x7425
670F	Restore a Number brute force, constructive algorithms, strings	2300	x862