Problemset - Codeforces

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Spectral::Cup 2026 Round 1 (Codeforces Round 1094, Div. 1 + Div. 2)
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Problems

#	Name
1283D	Christmas Trees graphs, greedy, shortest paths	1800	x9426
1282C	Petya and Exam greedy, sortings, two pointers	1800	x4579
1280B	Beingawesomeism implementation, math	1800	x4203
1267L	Lexicography constructive algorithms, strings	1800	x3351
1267J	Just Arrange the Icons greedy, implementation, math	1800	x3056
1254B1	Send Boxes to Alice (Easy Version) constructive algorithms, greedy, math, number theory, ternary search, two pointers	1800	x5004
1252H	Twin Buildings greedy, implementation	1800	x2846
1250J	The Parade binary search, greedy	1800	x3243
1250B	The Feast and the Bus brute force, constructive algorithms, greedy, math	1800	x2798
1249D2	Too Many Segments (hard version) data structures, greedy, sortings	1800	x5763
1249D1	Too Many Segments (easy version) greedy	1800	x5496
1244D	Paint the Tree brute force, constructive algorithms, dp, graphs, implementation, trees	1800	x8293
1227D2	Optimal Subsequences (Hard Version) data structures, greedy	1800	x4723
1225D	Power Products hashing, math, number theory	1800	x10013
1221D	Make The Fence Great Again dp	1800	x10178
1213G	Path Queries divide and conquer, dsu, graphs, sortings, trees	1800	x9470
1208C	Magic Grid constructive algorithms	1800	x6357
1207D	Number Of Permutations combinatorics	1800	x6695
1196E	Connected Component on a Chessboard constructive algorithms, implementation	1800	x3914
1195D2	Submarine in the Rybinsk Sea (hard edition) combinatorics, math, number theory	1800	x4897
1190B	Tokitsukaze, CSL and Stone Game games	1800	x6825
1187C	Vasya And Array constructive algorithms, greedy, implementation	1800	x6757
1186C	Vus the Cossack and Strings implementation, math	1800	x6543
1179B	Tolik and His Uncle constructive algorithms	1800	x4588
1177B	Digits Sequence (Hard Edition) binary search, divide and conquer, implementation	1800	x2936
1176D	Recover it! dfs and similar, graphs, greedy, number theory, sortings	1800	x5691
1172A	Nauuo and Cards greedy, implementation	1800	x5174
1156B	Ugly Pairs dfs and similar, greedy, implementation, sortings, strings	1800	x6570
1154E	Two Teams data structures, implementation, sortings	1800	x6933
1152C	Neko does Maths brute force, math, number theory	1800	x7075
1151C	Problem for Nazar constructive algorithms, math	1800	x5599
1148D	Dirty Deeds Done Dirt Cheap greedy, sortings	1800	x5259
1138B	Circus brute force, greedy, math, strings	1800	x4201
1136D	Nastya Is Buying Lunch greedy	1800	x4001
1133E	K Balanced Teams dp, sortings, two pointers	1800	x6422
1129A2	Toy Train brute force, greedy	1800	x4241
1119D	Frets On Fire binary search, sortings	1800	x5168
1118F1	Tree Cutting (Easy Version) dfs and similar, trees	1800	x6685
1109B	Sasha and One More Name constructive algorithms, hashing, strings	1800	x4536
1108E1	Array and Segments (Easy version) brute force, greedy, implementation	1800	x4882
1107D	Compression dp, implementation, math, number theory	1800	x3900
1096D	Easy Problem dp	1800	x9378
1090D	Similar Arrays constructive algorithms	1800	x2363
1083A	The Fair Nut and the Best Path data structures, dp, trees	1800	x6259
1082D	Maximum Diameter Graph constructive algorithms, graphs, implementation	1800	x4088
1081D	Maximum Distance dsu, graphs, shortest paths, sortings	1800	x4639
1077E	Thematic Contests greedy, sortings	1800	x5085
1076D	Edge Deletion graphs, greedy, shortest paths	1800	x5890
1073C	Vasya and Robot binary search, two pointers	1800	x5422
1067B	Multihedgehog dfs and similar, graphs, shortest paths	1800	x2859
1066D	Boxes Packing binary search, implementation	1800	x5938
1063B	Labyrinth graphs, shortest paths	1800	x9199
1062D	Fun with Integers dfs and similar, graphs, implementation, math	1800	x4167
1042D	Petya and Array data structures, divide and conquer, two pointers	1800	x7354
1038D	Slime dp, greedy, implementation	1800	x8854
1034A	Enlarge GCD number theory	1800	x9902
1030D	Vasya and Triangle geometry, number theory	1800	x6249
1016D	Vasya And The Matrix constructive algorithms, flows, math	1800	x4984
1016C	Vasya And The Mushrooms dp, implementation	1800	x3991
1010C	Border number theory	1800	x5924
1010B	Rocket binary search, interactive	1800	x6372
1005E1	Median on Segments (Permutations Edition) sortings	1800	x4339
1002C2	Distinguish zero state and plus state without errors *special problem	1800	x273
991E	Bus Number brute force, combinatorics, math	1800	x3726
989C	A Mist of Florescence constructive algorithms, graphs	1800	x4033
988D	Points and Powers of Two brute force, math	1800	x8032
986B	Petr and Permutations combinatorics, math	1800	x5050
983B	XOR-pyramid dp	1800	x6158
979B	Treasure Hunt greedy	1800	x4777
963A	Alternating Sum math, number theory	1800	x3637
958F2	Lightsabers (medium) binary search, two pointers	1800	x1439
952D	I'm Feeling Lucky! *special problem, probabilities	1800	x2564
946D	Timetable dp	1800	x4856
939E	Maximize! binary search, greedy, ternary search, two pointers	1800	x3537
933A	A Twisty Movement dp	1800	x5390
926B	Add Points math, number theory	1800	x2033
923C	Perfect Security data structures, greedy, strings, trees	1800	x4718
922D	Robot Vacuum Cleaner greedy, sortings	1800	x4802
917A	The Monster dp, greedy, implementation, math	1800	x3675
914C	Travelling Salesman and Special Numbers brute force, combinatorics, dp	1800	x4204
913D	Too Easy Problems binary search, brute force, data structures, greedy, sortings	1800	x5128
911D	Inversion Counting brute force, math	1800	x5103
909C	Python Indentation dp	1800	x5482
899D	Shovel Sale constructive algorithms, math	1800	x3261
894B	Ralph And His Magic Field combinatorics, constructive algorithms, math, number theory	1800	x4696
888E	Maximum Subsequence bitmasks, divide and conquer, meet-in-the-middle	1800	x9140
883K	Road Widening constructive algorithms, greedy, implementation	1800	x1213
883H	Palindromic Cut brute force, implementation, strings	1800	x1780
873D	Merge Sort constructive algorithms, divide and conquer	1800	x4021
869C	The Intriguing Obsession combinatorics, dp, math	1800	x5199
863D	Yet Another Array Queries Problem data structures, implementation	1800	x3802
863C	1-2-3 graphs, implementation	1800	x2715
853B	Jury Meeting greedy, sortings, two pointers	1800	x2755
847K	Travel Cards greedy, implementation, sortings	1800	x1920
847E	Packmen binary search, dp	1800	x3656
847C	Sum of Nestings constructive algorithms	1800	x2585
846F	Random Query data structures, math, probabilities, two pointers	1800	x2643
846C	Four Segments brute force, data structures, dp	1800	x2967
846B	Math Show brute force, greedy	1800	x2838
845D	Driving Test data structures, dp, greedy	1800	x2576

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