Problemset - Codeforces

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Codeforces Round (Div. 2)
30:57:10
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Problems

#	Name
1503B	3-Coloring constructive algorithms, games, interactive	1700	x6921
1503A	Balance the Bits constructive algorithms, greedy	1600	x13203
1500A	Going Home brute force, hashing, implementation, math	1800	x8655
1499C	Minimum Grid Path brute force, data structures, greedy, math	1500	x12458
1498C	Planar Reflections brute force, data structures, dp	1600	x9454
1497E1	Square-Free Division (easy version) data structures, dp, greedy, math, number theory, two pointers	1700	x8154
1497C2	k-LCM (hard version) constructive algorithms, math	1600	x16826
1494B	Berland Crossword bitmasks, brute force, greedy, implementation	1400	x14125
1492C	Maximum width binary search, data structures, dp, greedy, two pointers	1500	x15811
1491D	Zookeeper and The Infinite Zoo bitmasks, constructive algorithms, dp, greedy, math	1800	x7028
1491C	Pekora and Trampoline brute force, data structures, dp, greedy, implementation	1700	x7791
1490F	Equalize the Array binary search, data structures, greedy, math, sortings	1500	x15808
1490E	Accidental Victory binary search, data structures, greedy	1400	x18704
1488B	RBS Deletion *special problem, greedy	1800	x554
1487D	Pythagorean Triples binary search, brute force, math, number theory	1500	x17419
1487C	Minimum Ties brute force, constructive algorithms, dfs and similar, graphs, greedy, implementation, math	1500	x13901
1486C1	Guessing the Greatest (easy version) binary search, interactive	1600	x11868
1486B	Eastern Exhibition binary search, geometry, shortest paths, sortings	1500	x15630
1485C	Floor and Mod binary search, brute force, math, number theory	1700	x9720
1482C	Basic Diplomacy brute force, constructive algorithms, greedy, implementation	1600	x9248
1482B	Restore Modulo implementation, math	1500	x9119
1481C	Fence Painting brute force, constructive algorithms, greedy	1600	x11451
1479A	Searching Local Minimum binary search, interactive, ternary search	1700	x11312
1478C	Nezzar and Symmetric Array implementation, math, sortings	1700	x9602
1477A	Nezzar and Board constructive algorithms, math, number theory	1800	x5780
1476D	Journey dfs and similar, dp, dsu, implementation	1700	x8469
1476C	Longest Simple Cycle dp, graphs, greedy	1600	x11181
1475E	Advertising Agency combinatorics, math, sortings	1600	x13274
1475D	Cleaning the Phone binary search, dp, sortings, two pointers	1800	x9925
1475C	Ball in Berland combinatorics, graphs, math	1400	x20552
1474C	Array Destruction brute force, constructive algorithms, data structures, greedy, implementation, sortings	1700	x12388
1473D	Program data structures, dp, implementation, strings	1700	x9445
1473C	No More Inversions constructive algorithms, math	1500	x12512
1472E	Correct Placement binary search, data structures, dp, sortings, two pointers	1700	x7865
1469D	Ceil Divisions brute force, constructive algorithms, math, number theory	1700	x9279
1469C	Building a Fence dp, greedy, implementation, two pointers	1600	x10586
1468K	The Robot brute force, implementation	1600	x5003
1468J	Road Reform dsu, graphs, greedy	1800	x3986
1468F	Full Turn geometry, hashing, number theory	1700	x3636
1468D	Firecrackers binary search, sortings	1700	x4529
1468C	Berpizza data structures, implementation	1400	x7583
1467B	Hills And Valleys brute force, implementation	1700	x10804
1466E	Apollo versus Pan bitmasks, brute force, math	1800	x7148
1466D	13th Labour of Heracles data structures, greedy, sortings, trees	1500	x11032
1463C	Busy Robot implementation	1800	x5554
1463B	Find The Array bitmasks, constructive algorithms, greedy	1400	x19047
1462F	The Treasure of The Segments binary search, data structures, greedy	1800	x6820
1462E2	Close Tuples (hard version) binary search, combinatorics, implementation, math, sortings, two pointers	1700	x9467
1462E1	Close Tuples (easy version) binary search, combinatorics, math, sortings, two pointers	1500	x13488
1462D	Add to Neighbour and Remove greedy, math, number theory	1400	x16499
1461D	Divide and Summarize binary search, brute force, data structures, divide and conquer, implementation, sortings	1600	x9097
1461C	Random Events dp, math, probabilities	1500	x11037
1461B	Find the Spruce brute force, dp, implementation	1400	x12492
1458A	Row GCD math, number theory	1600	x16962
1455D	Sequence and Swaps dp, greedy, sortings	1600	x12141
1453C	Triangles greedy, implementation	1700	x6005
1453B	Suffix Operations constructive algorithms, implementation	1400	x13256
1452D	Radio Towers combinatorics, dp, math	1600	x7873
1452B	Toy Blocks binary search, greedy, math, sortings	1400	x14585
1451D	Circle Game games, geometry, math	1700	x9377
1451C	String Equality dp, greedy, hashing, implementation, strings	1400	x15348
1450D	Rating Compression binary search, data structures, greedy, implementation, two pointers	1800	x5400
1446B	Catching Cheaters dp, strings	1800	x7731
1444A	Division brute force, math, number theory	1500	x12835
1443C	The Delivery Dilemma binary search, greedy, sortings	1400	x15097
1442B	Identify the Operations combinatorics, data structures, dsu, greedy, implementation	1800	x4430
1442A	Extreme Subtraction constructive algorithms, dp, greedy	1800	x8738
1439A1	Binary Table (Easy Version) constructive algorithms, implementation	1500	x9300
1437D	Minimal Height Tree graphs, greedy, shortest paths, trees	1600	x12556
1437C	Chef Monocarp dp, flows, graph matchings, greedy, math, sortings	1800	x10317
1436C	Binary Search binary search, combinatorics	1500	x10716
1431D	Used Markers *special problem, greedy	1500	x451
1431C	Black Friday *special problem, implementation	1600	x701
1431B	Polycarp and the Language of Gods *special problem, implementation, two pointers	1400	x1006
1430D	String Deletion binary search, data structures, greedy, two pointers	1700	x8735
1427B	Chess Cheater greedy, implementation, sortings	1400	x10830
1426E	Rock, Paper, Scissors brute force, constructive algorithms, flows, greedy, math	1800	x7322
1426D	Non-zero Segments constructive algorithms, data structures, greedy, sortings	1500	x15754
1425F	Flamingoes of Mystery interactive	1400	x5378
1425A	Arena of Greed games, greedy	1400	x6436
1423K	Lonely Numbers binary search, math, number theory, two pointers	1600	x4743
1422C	Bargain combinatorics, dp, math	1700	x8155
1421C	Palindromifier constructive algorithms, strings	1400	x12677
1420D	Rescue Nibel! combinatorics, data structures, sortings	1800	x7480
1419D2	Sage's Birthday (hard version) binary search, brute force, constructive algorithms, greedy, sortings, two pointers	1500	x15113
1419C	Killjoy greedy, implementation, math	1500	x15184
1418C	Mortal Kombat Tower dp, graphs, greedy, shortest paths	1500	x19054
1416A	k-Amazing Numbers binary search, data structures, implementation, two pointers	1500	x12168
1415C	Bouncing Ball brute force, dp, implementation	1400	x10774
1413D	Shurikens data structures, greedy, implementation	1700	x6449
1411C	Peaceful Rooks dfs and similar, dsu, graphs	1700	x7867
1409E	Two Platforms binary search, dp, sortings, two pointers	1800	x7720
1409D	Decrease the Sum of Digits greedy, math	1500	x19086
1408C	Discrete Acceleration binary search, dp, implementation, math, two pointers	1500	x8764
1408B	Arrays Sum constructive algorithms, greedy, math	1400	x9877
1407C	Chocolate Bunny constructive algorithms, interactive, math, two pointers	1600	x11771
1406C	Link Cut Centroids constructive algorithms, dfs and similar, graphs, trees	1700	x10047
1404A	Balanced Bitstring implementation, strings	1500	x15116
1402A	Fancy Fence *special problem, data structures, dsu, implementation, math, sortings	1800	x1167
1401D	Maximum Distributed Tree dfs and similar, dp, greedy, implementation, math, number theory, sortings, trees	1800	x9009