Problemset - Codeforces

→ Pay attention

Before contest
Educational Codeforces Round 169 (Rated for Div. 2)
16:33:48
Register now »

→ Filter Problems

Difficulty: —

Add tag

Problems

#	Name
121B	Lucky Transformation strings	1500	x2558
120F	Spiders dp, greedy, trees	1400	x3556
120E	Put Knight! games, math	1400	x2707
120D	Three Sons brute force	1400	x1910
118D	Caesar's Legions dp	1700	x17179
117A	Elevator implementation, math	1300	x1989
115B	Lawnmower greedy, sortings	1500	x2457
114B	PFAST Inc. bitmasks, brute force, graphs	1500	x3585
113A	Grammar Lessons implementation, strings	1600	x2279
111A	Petya and Inequiations greedy	1400	x4712
108B	Datatypes math, sortings	1400	x2438
107B	Basketball Team combinatorics, dp, math, probabilities	1600	x3412
107A	Dorm Water Supply dfs and similar, graphs	1400	x5034
106D	Treasure Island brute force, implementation	1700	x1309
106C	Buns dp	1700	x5875
105A	Transmigration implementation	1700	x1826
103B	Cthulhu dfs and similar, dsu, graphs	1500	x8699
101B	Buses binary search, data structures, dp	1700	x2536
100I	Rotation *special problem, geometry, math	1500	x346
100E	Lamps in a Line *special problem, math	1600	x269
100D	World of Mouth *special problem, strings	1500	x303
100C	A+B *special problem, implementation	1400	x527
100B	Friendly Numbers *special problem, implementation	1500	x541
99B	Help Chef Gerasim implementation, sortings	1300	x2939
98A	Help Victoria the Wise brute force, implementation	1700	x1178
96B	Lucky Numbers (easy) binary search, bitmasks, brute force	1300	x15042
95A	Hockey implementation, strings	1600	x1658
94B	Friends graphs, implementation, math	1300	x4596
93A	Frames implementation	1700	x1924
92B	Binary Number greedy	1300	x4761
91B	Queue binary search, data structures	1500	x6701
91A	Newspaper Headline greedy, strings	1500	x3556
88B	Keyboard implementation	1500	x4543
87A	Trains implementation, math	1500	x5297
86A	Reflection math	1600	x1362
85A	Domino constructive algorithms, implementation	1300	x1775
84C	Biathlon binary search, implementation	1700	x1621
83A	Magical Array math	1300	x6175
82B	Sets constructive algorithms, hashing, implementation	1700	x2025
81C	Average Score greedy, math, sortings	1700	x1656
81B	Sequence Formatting implementation, strings	1700	x1926
81A	Plug-in implementation	1400	x10493
79B	Colorful Field implementation, sortings	1400	x7029
77A	Heroes brute force, implementation	1400	x1757
76E	Points implementation, math	1700	x1694
76D	Plus and xor dp, greedy, math	1700	x2045
75C	Modified GCD binary search, number theory	1600	x12419
75B	Facetook Priority Wall expression parsing, implementation, strings	1500	x3277
74B	Train dp, games, greedy	1500	x1528
73A	The Elder Trolls IV: Oblivon greedy, math	1600	x1327
72I	Goofy Numbers *special problem, implementation	1500	x461
72H	Reverse It! *special problem, implementation	1600	x264
71C	Round Table Knights dp, math, number theory	1600	x6397
71B	Progress Bar implementation, math	1300	x4464
70B	Text Messaging expression parsing, greedy, strings	1600	x1748
70A	Cookies math	1300	x3256
68B	Energy exchange binary search	1600	x4318
66D	Petya and His Friends constructive algorithms, math, number theory	1700	x3111
66A	Petya and Java implementation, strings	1300	x6310
65B	Harry Potter and the History of Magic brute force, greedy, implementation	1700	x1331
64C	Table *special problem, greedy, implementation, math	1600	x335
64B	Expression *special problem, expression parsing	1500	x1009
64A	Factorial *special problem, implementation	1300	x2764
63C	Bulls and Cows brute force, implementation	1700	x1663
62A	A Student's Dream greedy, math	1300	x3418
61B	Hard Work strings	1300	x3831
60B	Serial Time! dfs and similar, dsu	1400	x4537
60A	Where Are My Flakes? implementation, two pointers	1300	x3582
59C	Title expression parsing	1600	x2060
58B	Coins greedy	1300	x12084
57B	Martian Architecture implementation	1600	x1004
57A	Square Earth? dfs and similar, greedy, implementation	1300	x2855
56C	Corporation Mail data structures, expression parsing, implementation	1700	x1141
56B	Spoilt Permutation implementation	1300	x3685
55B	Smallest number brute force	1600	x2805
54A	Presents implementation	1300	x2048
53D	Physical Education sortings	1500	x1983
53B	Blog Photo binary search, implementation	1700	x1390
52B	Right Triangles combinatorics	1600	x2015
51B	bHTML Tables Analisys expression parsing	1700	x859
51A	Cheaterius's Problem implementation	1300	x1801
50B	Choosing Symbol Pairs strings	1500	x5624
49C	Disposition constructive algorithms, math	1700	x1668
49B	Sum math	1500	x2447
48D	Permutations greedy	1500	x2468
46C	Hamsters and Tigers two pointers	1600	x2391
45I	TCMCF+++ greedy	1400	x2358
44H	Phone Number dp	1700	x1716
44E	Anfisa the Monkey dp	1400	x5001
44C	Holidays implementation	1300	x3306
44B	Cola implementation	1500	x1946
43C	Lucky Tickets greedy	1300	x4221
42B	Game of chess unfinished implementation	1700	x933
42A	Guilty --- to the kitchen! greedy, implementation	1400	x2813
41C	Email address expression parsing, implementation	1300	x3712
41B	Martian Dollar brute force	1400	x3949
40B	Repaintings math	1600	x1141
40A	Find Color constructive algorithms, geometry, implementation, math	1300	x3962
39J	Spelling Check hashing, implementation, strings	1500	x2909
39H	Multiplication Table implementation	1300	x2682