Problemset - Codeforces

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Educational Codeforces Round 189 (Rated for Div. 2)
5 days
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Problems

#	Name
1095B	Array Stabilization implementation	900	x24288
1095A	Repeating Cipher implementation	800	x36385
1093G	Multidimensional Queries bitmasks, data structures	2300	x2213
1093F	Vasya and Array dp	2400	x1356
1093E	Intersection of Permutations data structures	2400	x1847
1093D	Beautiful Graph dfs and similar, graphs	1700	x11297
1093C	Mishka and the Last Exam greedy	1300	x9706
1093B	Letters Rearranging constructive algorithms, greedy, sortings, strings	900	x17671
1093A	Dice Rolling math	800	x18339
1092F	Tree with Maximum Cost dfs and similar, dp, trees	1900	x10715
1092E	Minimal Diameter Forest constructive algorithms, dfs and similar, greedy, trees	2000	x1977
1092D2	Great Vova Wall (Version 2) data structures, implementation	2200	x3367
1092D1	Great Vova Wall (Version 1) greedy, implementation, math	2200	x5640
1092C	Prefixes and Suffixes strings	1700	x6323
1092B	Teams Forming sortings	800	x29084
1092A	Uniform String implementation	800	x17256
1091H	New Year and the Tricolore Recreation games	3200	x494
1091G	New Year and the Factorisation Collaboration interactive, math, number theory	3200	x227
1091F	New Year and the Mallard Expedition constructive algorithms, greedy	2600	x889
1091E	New Year and the Acquaintance Estimation binary search, data structures, graphs, greedy, implementation, math, sortings	2400	x1086
1091D	New Year and the Permutation Concatenation combinatorics, dp, math	1700	x7464
1091C	New Year and the Sphere Transmission math, number theory	1400	x10539
1091B	New Year and the Treasure Geolocation brute force, constructive algorithms, greedy, implementation	1200	x11004
1091A	New Year and the Christmas Ornament brute force, implementation, math	800	x18553
1090M	The Pleasant Walk implementation	1000	x7146
1090L	Berland University greedy, math	2000	x1419
1090K	Right Expansion Of The Mind math	2000	x1197
1090J	Two Prefixes strings	2600	x600
1090I	Minimal Product	2000	x1178
1090H	Linearization graphs	2900	x108
1090G	Combostone games, implementation	2500	x123
1090F	How to Learn You Score constructive algorithms, interactive	2600	x373
1090E	Horseback Riding flows, graphs	2300	x676
1090D	Similar Arrays constructive algorithms	1800	x2362
1090C	New Year Presents constructive algorithms, data structures	2400	x568
1090B	LaTeX Expert	1900	x1550
1090A	Company Merging greedy	1300	x4934
1089M	Minegraphed constructive algorithms, graphs	2400	x654
1089L	Lazyland	900	x4712
1089K	King Kog's Reception data structures	2400	x1241
1089J	JS Minification greedy, implementation	3200	x147
1089I	Interval-Free Permutations combinatorics	2600	x458
1089H	Harder Satisfiability 2-sat, dfs and similar, graphs	3400	x127
1089G	Guest Student math	1500	x3218
1089F	Fractions math	1900	x2147
1089E	Easy Chess constructive algorithms	1700	x2138
1089D	Distance Sum graphs	3100	x111
1089C	Cactus Search interactive	2500	x458
1089B	Bimatching graphs	3200	x249
1089A	Alice the Fan dp	2200	x1272
1088F	Ehab and a weird weight formula data structures, trees	2800	x591
1088E	Ehab and a component choosing problem dp, greedy, math, trees	2400	x1613
1088D	Ehab and another another xor problem bitmasks, constructive algorithms, implementation, interactive	2000	x3160
1088C	Ehab and a 2-operation task constructive algorithms, greedy, math	1400	x8511
1088B	Ehab and subtraction implementation, sortings	1000	x13575
1088A	Ehab and another construction problem brute force, constructive algorithms	800	x17626
1086F	Forest Fires math	3500	x313
1085G	Beautiful Matrix combinatorics, data structures, dp	2900	x706
1085F	Rock-Paper-Scissors Champion	2500	x708
1085E	Vasya and Templates greedy, implementation, strings	2300	x1120
1085D	Minimum Diameter Tree constructive algorithms, implementation, trees	1700	x5902
1085C	Connect Three implementation, math	1600	x5639
1085B	Div Times Mod math	1100	x10074
1085A	Right-Left Cipher implementation, strings	800	x12688
1084C	The Fair Nut and String combinatorics, dp, implementation	1500	x11557
1084B	Kvass and the Fair Nut greedy, implementation	1200	x8251
1084A	The Fair Nut and Elevator brute force, implementation	1000	x8208
1083F	The Fair Nut and Amusing Xor data structures	3300	x315
1083E	The Fair Nut and Rectangles data structures, dp, geometry	2400	x5571
1083D	The Fair Nut's getting crazy data structures, implementation	3500	x355
1083C	Max Mex data structures, trees	2900	x1110
1083B	The Fair Nut and Strings greedy, strings	2000	x2138
1083A	The Fair Nut and the Best Path data structures, dp, trees	1800	x6237
1082G	Petya and Graph flows, graphs	2400	x2667
1082F	Speed Dial dp, strings, trees	2800	x532
1082E	Increasing Frequency binary search, dp, greedy	2000	x6291
1082D	Maximum Diameter Graph constructive algorithms, graphs, implementation	1800	x4078
1082C	Multi-Subject Competition greedy, sortings	1600	x6129
1082B	Vova and Trophies greedy	1600	x8024
1082A	Vasya and Book implementation, math	1200	x9259
1081H	Palindromic Magic data structures, hashing, strings	3500	x130
1081G	Mergesort Strikes Back math, probabilities	3200	x433
1081F	Tricky Interactor constructive algorithms, implementation, interactive	2600	x505
1081E	Missing Numbers binary search, constructive algorithms, greedy, math, number theory	1900	x2813
1081D	Maximum Distance dsu, graphs, shortest paths, sortings	1800	x4632
1081C	Colorful Bricks combinatorics, dp, math	1500	x8416
1081B	Farewell Party constructive algorithms, implementation	1500	x4664
1081A	Definite Game constructive algorithms, math	800	x13264
1080F	Katya and Segments Sets data structures, interactive, sortings	2400	x912
1080E	Sonya and Matrix Beauty strings	2400	x1304
1080D	Olya and magical square constructive algorithms, implementation, math	2000	x1663
1080C	Masha and two friends implementation	1500	x4215
1080B	Margarite and the best present math	900	x12612
1080A	Petya and Origami math	800	x19157
1078E	Negative Time Summation constructive algorithms	3400	x102
1077F2	Pictures with Kittens (hard version) data structures, dp	2100	x4147
1077F1	Pictures with Kittens (easy version) dp	1900	x5313
1077E	Thematic Contests greedy, sortings	1800	x5076
1077D	Cutting Out binary search, sortings	1600	x10433
1077C	Good Array	1300	x25408

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