Problemset - Codeforces

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IAEPC Preliminary Contest (Codeforces Round 999, Div. 1 + Div. 2)
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Problems

#	Name
417A	Elimination dp, implementation, math	1500	x3070
416E	President's Path dp, graphs, shortest paths	2500	x1564
416D	Population Size greedy, implementation, math	2400	x964
416C	Booking System binary search, dp, greedy, implementation	1600	x8117
416B	Art Union brute force, dp, implementation	1300	x8819
416A	Guess a number! greedy, implementation, two pointers	1400	x9053
415B	Mashmokh and Tokens binary search, greedy, implementation, math	1500	x6363
415A	Mashmokh and Lights implementation	900	x9080
414E	Mashmokh's Designed Problem data structures	3200	x200
414D	Mashmokh and Water Tanks binary search, data structures, greedy, trees, two pointers	2300	x692
414C	Mashmokh and Reverse Operation combinatorics, divide and conquer	2100	x2244
414B	Mashmokh and ACM combinatorics, dp, number theory	1400	x23304
414A	Mashmokh and Numbers constructive algorithms, number theory	1500	x9894
413E	Maze 2D data structures, divide and conquer	2200	x756
413D	2048 bitmasks, dp	2000	x829
413C	Jeopardy! greedy, math	1400	x2396
413B	Spyke Chatting implementation	1300	x1730
413A	Data Recovery implementation	1200	x2694
412E	E-mail Addresses implementation	1900	x852
412D	Giving Awards dfs and similar	2000	x2098
412C	Pattern implementation, strings	1200	x3962
412B	Network Configuration greedy, sortings	900	x5573
412A	Poster greedy, implementation	900	x4523
411C	Kicker *special problem, implementation	1700	x1233
411B	Multi-core Processor implementation	1600	x1289
411A	Password Check *special problem, implementation	800	x7363
409I	Feed the Golorp *special problem	2400	x128
409H	A + B Strikes Back *special problem, brute force, constructive algorithms, dsu, implementation	1500	x9036
409G	On a plane *special problem, geometry	2200	x524
409F	000001 *special problem	1900	x2103
409E	Dome *special problem	1800	x582
409D	Big Data *special problem	1700	x1725
409C	Magnum Opus *special problem	1700	x1992
409B	Mysterious Language *special problem	1700	x1370
409A	The Great Game *special problem	1700	x2478
408B	Garland implementation	1200	x9454
408A	Line to Cashier implementation	900	x11387
407E	k-d-sequence data structures	3100	x805
407D	Largest Submatrix 3 dp, hashing	2700	x681
407C	Curious Array brute force, combinatorics, implementation, math	2500	x1061
407B	Long Path dp, implementation	1600	x6642
407A	Triangle brute force, geometry, implementation, math	1600	x4934
406E	Hamming Triples implementation, math, two pointers	2800	x249
406D	Hill Climbing dfs and similar, geometry, trees	2200	x1190
405E	Graph Cutting dfs and similar, graphs	2300	x1452
405D	Toy Sum greedy, implementation, math	1700	x3131
405C	Unusual Product implementation, math	1600	x4709
405B	Domino Effect	1100	x5832
405A	Gravity Flip greedy, implementation, sortings	900	x105102
404E	Maze 1D binary search, greedy, implementation	2200	x606
404D	Minesweeper 1D dp, implementation	1900	x2191
404C	Restore Graph dfs and similar, graphs, sortings	1800	x5306
404B	Marathon implementation, math	1500	x2946
404A	Valera and X implementation	1000	x24418
403E	Two Rooted Trees data structures, implementation, trees	2900	x224
403D	Beautiful Pairs of Numbers combinatorics, dp	2300	x1127
402E	Strictly Positive Matrix graphs, math	2200	x2211
402D	Upgrading Array dp, greedy, math, number theory	1800	x2645
402C	Searching for Graph brute force, constructive algorithms, graphs	1500	x5995
402B	Trees in a Row brute force, implementation	1400	x3834
402A	Nuts greedy, math	1100	x4642
401E	Olympic Games math	2500	x168
401D	Roman and Numbers bitmasks, brute force, combinatorics, dp, number theory	2000	x4236
401C	Team constructive algorithms, greedy, implementation	1400	x20299
401B	Sereja and Contests greedy, implementation, math	1200	x4447
401A	Vanya and Cards implementation, math	800	x16572
400E	Inna and Binary Logic binary search, bitmasks, data structures	2100	x978
400D	Dima and Bacteria dsu, graphs, shortest paths	2000	x2943
400C	Inna and Huge Candy Matrix implementation, math	1500	x2909
400B	Inna and New Matrix of Candies brute force, implementation, schedules	1200	x7857
400A	Inna and Choose Options implementation	1000	x6577
399B	Red and Blue Balls		x1843
399A	Pages implementation		x4164
398E	Sorting Permutations		x92
398D	Instant Messanger data structures		x963
398C	Tree and Array constructive algorithms		x214
398B	Painting The Wall dp, probabilities		x1072
398A	Cards constructive algorithms, implementation		x927
397B	On Corruption and Numbers constructive algorithms, implementation, math		x760
397A	On Segment's Own Points implementation		x2643
396E	On Iteration of One Well-Known Function math		x155
396D	On Sum of Number of Inversions in Permutations combinatorics, math		x439
396C	On Changing Tree data structures, graphs, trees		x1644
396B	On Sum of Fractions math, number theory		x1111
396A	On Number of Decompositions into Multipliers combinatorics, math, number theory		x1523
394E	Lightbulb for Minister geometry		x117
394D	Physical Education and Buns brute force, implementation, math		x271
394C	Dominoes constructive algorithms, greedy		x521
394B	Very Beautiful Number math		x575
394A	Counting Sticks brute force, implementation		x2668
393B	Three matrices		x2002
393A	Nineteen		x6700
392E	Deleting Substrings		x179
392D	Three Arrays data structures		x218
392C	Yet Another Number Sequence combinatorics, math, matrices		x599
392B	Tower of Hanoi dp		x958
392A	Blocked Points math		x979
391F3	Stock Trading		x107
391F2	Stock Trading greedy		x108
391F1	Stock Trading dp		x184