Problemset - Codeforces

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Codeforces Round 997 (Div. 2)
2 days
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Problems

#	Name
100B	Friendly Numbers *special problem, implementation	1500	x552
99B	Help Chef Gerasim implementation, sortings	1300	x3021
98A	Help Victoria the Wise brute force, implementation	1700	x1219
96B	Lucky Numbers (easy) binary search, bitmasks, brute force	1300	x15979
95A	Hockey implementation, strings	1600	x1692
94B	Friends graphs, implementation, math	1300	x4749
93A	Frames implementation	1700	x1971
92B	Binary Number greedy	1300	x4915
91B	Queue binary search, data structures	1500	x6935
91A	Newspaper Headline greedy, strings	1500	x3657
88B	Keyboard implementation	1500	x4780
87A	Trains implementation, math	1500	x5437
86A	Reflection math	1600	x1443
85A	Domino constructive algorithms, implementation	1300	x1810
84C	Biathlon binary search, implementation	1700	x1728
83A	Magical Array math	1300	x6319
82B	Sets constructive algorithms, hashing, implementation	1700	x2073
81C	Average Score greedy, math, sortings	1700	x1676
81B	Sequence Formatting implementation, strings	1700	x1965
81A	Plug-in implementation	1400	x11280
79B	Colorful Field implementation, sortings	1400	x7389
77A	Heroes brute force, implementation	1400	x1785
76E	Points implementation, math	1700	x1728
76D	Plus and xor dp, greedy, math	1700	x2098
75C	Modified GCD binary search, number theory	1600	x13077
75B	Facetook Priority Wall expression parsing, implementation, strings	1500	x3340
74B	Train dp, games, greedy	1500	x1561
73A	The Elder Trolls IV: Oblivon greedy, math	1600	x1383
72I	Goofy Numbers *special problem, implementation	1500	x468
72H	Reverse It! *special problem, implementation	1600	x269
71C	Round Table Knights dp, math, number theory	1600	x6685
71B	Progress Bar implementation, math	1300	x4631
70B	Text Messaging expression parsing, greedy, strings	1600	x1792
70A	Cookies math	1300	x3311
68B	Energy exchange binary search	1600	x4756
66D	Petya and His Friends constructive algorithms, math, number theory	1700	x3210
66A	Petya and Java implementation, strings	1300	x6489
65B	Harry Potter and the History of Magic brute force, greedy, implementation	1700	x1395
64C	Table *special problem, greedy, implementation, math	1600	x342
64B	Expression *special problem, expression parsing	1500	x1025
64A	Factorial *special problem, implementation	1300	x3305
63C	Bulls and Cows brute force, implementation	1700	x1755
62A	A Student's Dream greedy, math	1300	x3474
61B	Hard Work strings	1300	x3902
60B	Serial Time! dfs and similar, dsu	1400	x4725
60A	Where Are My Flakes? implementation, two pointers	1300	x3682
59C	Title expression parsing	1600	x2134
58B	Coins greedy	1300	x12346
57B	Martian Architecture implementation	1600	x1025
57A	Square Earth? dfs and similar, greedy, implementation	1300	x2941
56C	Corporation Mail data structures, expression parsing, implementation	1700	x1176
56B	Spoilt Permutation implementation	1300	x3759
55B	Smallest number brute force	1600	x2926
54A	Presents implementation	1300	x2122
53D	Physical Education sortings	1500	x2069
53B	Blog Photo binary search, implementation	1700	x1421
52B	Right Triangles combinatorics	1600	x2094
51B	bHTML Tables Analisys expression parsing	1700	x878
51A	Cheaterius's Problem implementation	1300	x1848
50B	Choosing Symbol Pairs strings	1500	x5764
49C	Disposition constructive algorithms, math	1700	x1708
49B	Sum math	1500	x2509
48D	Permutations greedy	1500	x2583
46C	Hamsters and Tigers two pointers	1600	x2504
45I	TCMCF+++ greedy	1400	x2513
44H	Phone Number dp	1700	x1766
44E	Anfisa the Monkey dp	1400	x5300
44C	Holidays implementation	1300	x3529
44B	Cola implementation	1500	x2045
43C	Lucky Tickets greedy	1300	x4334
42B	Game of chess unfinished implementation	1700	x957
42A	Guilty --- to the kitchen! greedy, implementation	1400	x2877
41C	Email address expression parsing, implementation	1300	x3803
41B	Martian Dollar brute force	1400	x4092
40B	Repaintings math	1600	x1189
40A	Find Color constructive algorithms, geometry, implementation, math	1300	x4097
39J	Spelling Check hashing, implementation, strings	1500	x3044
39H	Multiplication Table implementation	1300	x2801
39F	Pacifist frogs implementation	1300	x1602
39B	Company Income Growth greedy	1300	x2714
38C	Blinds brute force	1400	x2268
36B	Fractal implementation	1600	x1534
36A	Extra-terrestrial Intelligence implementation	1300	x3056
35D	Animals dp, greedy	1700	x3415
35C	Fire Again brute force, dfs and similar, shortest paths	1500	x7051
35B	Warehouse implementation	1700	x1032
34D	Road Map dfs and similar, graphs	1600	x5299
34C	Page Numbers expression parsing, implementation, sortings, strings	1300	x4313
32D	Constellation implementation	1600	x1297
32C	Flea math	1700	x2197
31C	Schedule implementation	1700	x1845
31B	Sysadmin Bob greedy, implementation, strings	1500	x4380
30B	Codeforces World Finals implementation	1700	x1213
30A	Accounting brute force, math	1400	x3529
29C	Mail Stamps data structures, dfs and similar, graphs, implementation	1700	x5133
29B	Traffic Lights implementation	1500	x3012
28B	pSort dfs and similar, dsu, graphs	1600	x4783
28A	Bender Problem implementation	1600	x808
27B	Tournament bitmasks, brute force, dfs and similar, greedy	1300	x5426
26B	Regular Bracket Sequence greedy	1400	x20189