Problemset - Codeforces

Problems

#	Name
1250D	Conference Problem dp	3000	x176
1250C	Trip to Saint Petersburg data structures	2100	x1324
1250B	The Feast and the Bus brute force, constructive algorithms, greedy, math	1800	x2618
1250A	Berstagram implementation	1400	x4089
1249F	Maximum Weight Subset dp, trees	2200	x2413
1249E	By Elevator or Stairs? dp, shortest paths	1700	x9783
1249D2	Too Many Segments (hard version) data structures, greedy, sortings	1800	x5306
1249D1	Too Many Segments (easy version) greedy	1800	x5138
1249C2	Good Numbers (hard version) binary search, greedy, math, meet-in-the-middle	1500	x12692
1249C1	Good Numbers (easy version) brute force, greedy, implementation	1300	x15613
1249B2	Books Exchange (hard version) dfs and similar, dsu, math	1300	x16923
1249B1	Books Exchange (easy version) dsu, math	1000	x20789
1249A	Yet Another Dividing into Teams math	800	x22422
1248D1	The World Is Just a Programming Task (Easy Version) brute force, dp, greedy, implementation	2000	x2401
1248B	Grow The Tree greedy, math, sortings	900	x16937
1248A	Integer Points geometry, math	1000	x14168
1246F	Cursor Distance	3500	x177
1245F	Daniel and Spring Cleaning bitmasks, brute force, combinatorics, dp	2300	x2009
1245E	Hyakugoku and Ladders dp, probabilities, shortest paths	2300	x1272
1245D	Shichikuji and Power Grid dsu, graphs, greedy, shortest paths, trees	1900	x7671
1245C	Constanze's Machine dp	1400	x17685
1245B	Restricted RPS constructive algorithms, dp, greedy	1200	x13875
1245A	Good ol' Numbers Coloring math, number theory	1000	x14263
1244G	Running in Pairs constructive algorithms, greedy, math	2400	x1363
1244F	Chips constructive algorithms, implementation	2300	x1544
1244E	Minimizing Difference binary search, constructive algorithms, greedy, sortings, ternary search, two pointers	2000	x5234
1244D	Paint the Tree brute force, constructive algorithms, dp, graphs, implementation, trees	1800	x7613
1244C	The Football Season brute force, math, number theory	2000	x7656
1244B	Rooms and Staircases brute force, implementation	1000	x15906
1244A	Pens and Pencils math	800	x19294
1243B2	Character Swap (Hard Version) strings	1600	x7111
1243B1	Character Swap (Easy Version) strings	1000	x14920
1243A	Maximum Square implementation	800	x15715
1242E	Planar Perimeter constructive algorithms, graphs	3200	x130
1242D	Number Discovery math	3400	x199
1242C	Sum Balance bitmasks, dfs and similar, dp, graphs	2400	x1680
1242B	0-1 MST dfs and similar, dsu, graphs, sortings	1900	x7578
1242A	Tile Painting constructive algorithms, math, number theory	1500	x12665
1240F	Football graphs	3100	x256
1239F	Swiper, no swiping! graphs, implementation	3400	x281
1239E	Turtle dp, implementation	3100	x958
1239D	Catowice City 2-sat, dfs and similar, graph matchings, graphs	2400	x2059
1239C	Queue in the Train data structures, greedy, implementation	2300	x1546
1239B	The World Is Just a Programming Task (Hard Version) implementation	2500	x1052
1239A	Ivan the Fool and the Probability Theory combinatorics, dp, math	1700	x7378
1238G	Adilbek and the Watering System data structures, greedy, sortings	2700	x410
1238F	The Maximum Subtree dfs and similar, dp, graphs, trees	2200	x1888
1238E	Keyboard Purchase bitmasks, dp	2200	x3063
1238D	AB-string binary search, combinatorics, dp, strings	1900	x6064
1238C	Standard Free2play dp, greedy, math	1600	x7445
1238B	Kill `Em All greedy, sortings	1300	x13684
1238A	Prime Subtraction math, number theory	900	x24531
1237H	Balanced Reversals constructive algorithms	3300	x373
1237G	Balanced Distribution data structures, dp, greedy	3500	x123
1237F	Balanced Domino Placements combinatorics, dp	2600	x902
1237E	Balanced Binary Search Trees dp, math	2400	x1335
1237D	Balanced Playlist binary search, data structures, implementation	2000	x4246
1237C2	Balanced Removals (Harder) binary search, constructive algorithms, divide and conquer, greedy, implementation, sortings	1900	x4356
1237C1	Balanced Removals (Easier) constructive algorithms, geometry, greedy	1700	x6112
1237B	Balanced Tunnel data structures, sortings, two pointers	1300	x16277
1237A	Balanced Rating Changes implementation, math	1000	x20039
1236F	Alice and the Cactus dfs and similar, graphs, math, probabilities	3000	x177
1236E	Alice and the Unfair Game binary search, data structures, dp, dsu	2500	x667
1236D	Alice and the Doll brute force, data structures, greedy, implementation	2300	x1675
1236C	Labs constructive algorithms, greedy, implementation	1300	x10173
1236B	Alice and the List of Presents combinatorics, math	1500	x11130
1236A	Stones brute force, greedy, math	800	x16473
1234F	Yet Another Substring Reverse bitmasks, dp	2200	x2612
1234E	Special Permutations math	2000	x2795
1234D	Distinct Characters Queries data structures	1600	x15301
1234C	Pipes dp, implementation	1500	x12661
1234B2	Social Network (hard version) data structures, implementation	1300	x16964
1234B1	Social Network (easy version) implementation	1000	x18808
1234A	Equalize Prices Again math	800	x27897
1231E	Middle-Out constructive algorithms, greedy, strings	2200	x841
1231C	Increasing Matrix greedy	1100	x3867
1230B	Ania and Minimizing greedy, implementation	1000	x18773
1230A	Dawid and Bags of Candies brute force, implementation	800	x21686
1228F	One Node is Gone constructive algorithms, implementation, trees	2500	x439
1228E	Another Filling the Grid combinatorics, dp, math	2300	x2775
1228D	Complete Tripartite brute force, constructive algorithms, graphs, hashing, implementation	1900	x5230
1228C	Primes and Multiplication math, number theory	1700	x9065
1228B	Filling the Grid implementation, math	1400	x11557
1228A	Distinct Digits brute force, implementation	800	x21847
1227G	Not Same constructive algorithms	2600	x1044
1227F2	Wrong Answer on test 233 (Hard Version) combinatorics, math	2400	x1527
1227F1	Wrong Answer on test 233 (Easy Version) dp	2200	x1831
1227E	Arson In Berland Forest binary search, graphs, graphs, shortest paths	2200	x1493
1227D2	Optimal Subsequences (Hard Version) data structures, greedy	1800	x4408
1227D1	Optimal Subsequences (Easy Version) data structures, greedy	1600	x6448
1227C	Messy constructive algorithms	1700	x5533
1227B	Box constructive algorithms	1200	x9693
1227A	Math Problem math	1100	x9837
1225G	To Make 1 bitmasks, constructive algorithms, dp, greedy, number theory	3100	x560
1225F	Tree Factory constructive algorithms, greedy, trees	2500	x886
1225E	Rock Is Push binary search, dp	2200	x1900
1225D	Power Products hashing, math, number theory	1800	x8124
1225C	p-binary bitmasks, brute force, math	1600	x9024
1225B2	TV Subscriptions (Hard Version) implementation, two pointers	1300	x10749
1225B1	TV Subscriptions (Easy Version) implementation	1000	x11936