Problemset - Codeforces

Problems

#	Name
746D	Green and Black Tea constructive algorithms, greedy, math	1500	x5123
746C	Tram constructive algorithms, implementation, math	1600	x3740
746B	Decoding implementation, strings	900	x28275
746A	Compote implementation, math	800	x21591
745B	Hongcow Solves A Puzzle implementation	1400	x3747
745A	Hongcow Learns the Cyclic Shift implementation, strings	900	x10491
744E	Hongcow Masters the Cyclic Shift strings, two pointers	3200	x143
744D	Hongcow Draws a Circle geometry	3200	x125
744C	Hongcow Buys a Deck of Cards bitmasks, brute force, dp	2400	x1165
744B	Hongcow's Game bitmasks, divide and conquer, interactive	1900	x1782
744A	Hongcow Builds A Nation dfs and similar, graphs	1500	x8460
743E	Vladik and cards binary search, bitmasks, brute force, dp	2200	x1509
743D	Chloe and pleasant prizes dfs and similar, dp, graphs, trees	1800	x4379
743C	Vladik and fractions brute force, constructive algorithms, math, number theory	1500	x12382
743B	Chloe and the sequence binary search, bitmasks, constructive algorithms, implementation	1200	x14954
743A	Vladik and flights constructive algorithms, greedy, implementation	1200	x11184
742B	Arpa’s obvious problem and Mehrdad’s terrible solution brute force, math, number theory	1500	x9315
742A	Arpa’s hard exam and Mehrdad’s naive cheat implementation, math, number theory	1000	x43133
741E	Arpa’s abnormal DNA and Mehrdad’s deep interest data structures, string suffix structures	3400	x180
741D	Arpa’s letter-marked tree and Mehrdad’s Dokhtar-kosh paths data structures, dfs and similar, trees	2900	x2817
741C	Arpa’s overnight party and Mehrdad’s silent entering constructive algorithms, dfs and similar, graphs	2600	x2642
741B	Arpa's weak amphitheater and Mehrdad's valuable Hoses dfs and similar, dp, dsu	1600	x5292
741A	Arpa's loud Owf and Mehrdad's evil plan dfs and similar, math	1600	x5442
740B	Alyona and flowers constructive algorithms	1200	x8339
740A	Alyona and copybooks brute force, implementation	1300	x8917
739E	Gosha is hunting brute force, data structures, dp, flows, math, probabilities, sortings	3000	x2203
739D	Recover a functional graph graph matchings	3400	x186
739C	Alyona and towers data structures	2500	x1527
739B	Alyona and a tree binary search, data structures, dfs and similar, graphs, trees	1900	x4670
739A	Alyona and mex constructive algorithms, greedy	1700	x7884
737F	Dirty plates constructive algorithms, math	3300	x70
737E	Tanya is 5! graph matchings, graphs, greedy, schedules	3300	x122
736E	Chess Championship constructive algorithms, flows, greedy, math	2900	x187
736D	Permutations math, matrices	2800	x464
735E	Ostap and Tree dp, trees	2500	x876
735D	Taxes math, number theory	1600	x13619
735C	Tennis Championship combinatorics, constructive algorithms, greedy, math	1600	x7546
735B	Urbanization greedy, number theory, sortings	1100	x8403
735A	Ostap and Grasshopper implementation, strings	800	x12522
734F	Anton and School bitmasks, constructive algorithms, implementation, math	2500	x1304
734E	Anton and Tree dfs and similar, dp, trees	2100	x4242
734D	Anton and Chess implementation	1700	x3744
734C	Anton and Making Potions binary search, dp, greedy, two pointers	1600	x5347
734B	Anton and Digits brute force, greedy, implementation, math	800	x29494
734A	Anton and Danik implementation, strings	800	x155231
733F	Drivers Dissatisfaction data structures, dsu, graphs, trees	2200	x1127
733E	Sleep in Class constructive algorithms, data structures, math, two pointers	2400	x956
733D	Kostya the Sculptor data structures, hashing	1600	x4182
733C	Epidemic in Monstropolis constructive algorithms, dp, greedy, two pointers	1800	x3348
733B	Parade math	1100	x10687
733A	Grasshopper And the String implementation	1000	x16185
732F	Tourist Reform dfs and similar, graphs	2300	x2613
732E	Sockets greedy, sortings	2100	x1608
732D	Exams binary search, greedy, sortings	1700	x5575
732C	Sanatorium binary search, constructive algorithms, greedy, implementation, math	1200	x9754
732B	Cormen --- The Best Friend Of a Man dp, greedy	1000	x24653
732A	Buy a Shovel brute force, constructive algorithms, implementation, math	800	x73351
731F	Video Cards brute force, data structures, implementation, math, number theory	1900	x2879
731E	Funny Game dp, games	2200	x1723
731D	80-th Level Archeology brute force, data structures, greedy, sortings	2200	x1178
731C	Socks dfs and similar, dsu, graphs, greedy	1600	x7039
731B	Coupons and Discounts constructive algorithms, greedy	1100	x8004
731A	Night at the Museum implementation, strings	800	x46286
730L	Expression Queries data structures	3200	x86
730K	Roads Orientation Problem graphs	3200	x104
730J	Bottles dp	1900	x3458
730I	Olympiad in Programming and Sports dp, flows, graphs, greedy	2000	x2105
730H	Delete Them constructive algorithms, implementation	1300	x3056
730G	Car Repair Shop implementation	1600	x2185
730F	Ber Patio	3100	x91
730E	Award Ceremony greedy, implementation	2200	x723
730D	Running Over The Bridges greedy, implementation, math	2200	x883
730C	Bulmart binary search, dfs and similar	2100	x1250
730B	Minimum and Maximum constructive algorithms, interactive	1800	x2490
730A	Toda 2 greedy, implementation	1800	x1592
729F	Financiers Game dp	2500	x992
729E	Subordinates constructive algorithms, data structures, graphs, greedy, sortings	1900	x2238
729D	Sea Battle constructive algorithms, greedy, math	1700	x3772
729C	Road to Cinema binary search, greedy, sortings	1700	x3939
729B	Spotlights dp, implementation	1200	x8000
729A	Interview with Oleg implementation, strings	900	x7505
727F	Polycarp's problems binary search, dp, greedy	2300	x797
727E	Games on a CD data structures, hashing, string suffix structures, strings	2300	x1242
727D	T-shirts Distribution constructive algorithms, flows, greedy	1800	x1887
727C	Guess the Array constructive algorithms, interactive, math	1400	x7501
727B	Bill Total Value expression parsing, implementation, strings	1600	x1998
727A	Transformation: from A to B brute force, dfs and similar, math	1000	x14068
725G	Messages on a Tree	3300	x164
725F	Family Photos games, greedy	2900	x540
725E	Too Much Money brute force, greedy	2600	x654
725D	Contest Balloons data structures, greedy	1800	x2810
725C	Hidden Word brute force, constructive algorithms, implementation, strings	1600	x2648
725B	Food on the Plane implementation, math	1200	x5151
725A	Jumping Ball implementation	1000	x7095
724G	Xor-matic Number of the Graph bitmasks, graphs, math, number theory, trees	2600	x1077
724F	Uniformly Branched Trees combinatorics, dp, trees	2700	x404
724E	Goods transportation dp, flows, greedy	2900	x1317
724D	Dense Subsequence data structures, greedy, strings	1900	x2343
724C	Ray Tracing greedy, hashing, implementation, math, number theory, sortings	1800	x2145
724B	Batch Sort brute force, greedy, implementation, math	1500	x4016