Problemset - Codeforces

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Rayan Programming Contest 2024 - Selection (Codeforces Round, Div. 1 + Div. 2)
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constructive algorithms

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Problems

#	Name
1343F	Restore the Permutation by Sorted Segments brute force, constructive algorithms, data structures, greedy, implementation	2400	x1273
1343B	Balanced Array constructive algorithms, math	800	x57185
1342D	Multiple Testcases binary search, constructive algorithms, data structures, greedy, sortings, two pointers	1900	x6134
1342B	Binary Period constructive algorithms, strings	1100	x23771
1340D	Nastya and Time Machine constructive algorithms, dfs and similar, graphs, trees	2600	x995
1339B	Sorted Adjacent Differences constructive algorithms, sortings	1200	x26593
1338D	Nested Rubber Bands constructive algorithms, dfs and similar, dp, math, trees	2700	x1029
1338C	Perfect Triples bitmasks, brute force, constructive algorithms, divide and conquer, math	2200	x3244
1338B	Edge Weight Assignment bitmasks, constructive algorithms, dfs and similar, greedy, math, trees	1800	x8521
1337A	Ichihime and Triangle constructive algorithms, math	800	x38668
1336D	Yui and Mahjong Set constructive algorithms, interactive	3200	x478
1335D	Anti-Sudoku constructive algorithms, implementation	1300	x27561
1335B	Construct the String constructive algorithms	900	x38763
1334D	Minimum Euler Cycle constructive algorithms, graphs, greedy, implementation	1800	x7348
1334C	Circle of Monsters brute force, constructive algorithms, greedy, math	1600	x16739
1333E	Road to 1600 brute force, constructive algorithms	2400	x1705
1333D	Challenges in school №41 brute force, constructive algorithms, games, graphs, greedy, implementation, sortings	2100	x3950
1333A	Little Artem constructive algorithms	1000	x24677
1332E	Height All the Same combinatorics, constructive algorithms, math, matrices	2100	x3878
1332D	Walk on Matrix bitmasks, constructive algorithms, math	1700	x8201
1332B	Composite Coloring brute force, constructive algorithms, greedy, math, number theory	1400	x17681
1329D	Dreamoon Likes Strings constructive algorithms, data structures	3100	x401
1329C	Drazil Likes Heap constructive algorithms, data structures, greedy, implementation	2400	x1716
1329A	Dreamoon Likes Coloring constructive algorithms, greedy, implementation, math	1800	x9182
1328D	Carousel constructive algorithms, dp, graphs, greedy, math	1800	x13299
1327C	Game with Chips constructive algorithms, implementation	1600	x13459
1326A	Bad Ugly Numbers constructive algorithms, number theory	1000	x30556
1325F	Ehab's Last Theorem constructive algorithms, dfs and similar, graphs, greedy	2500	x2002
1325D	Ehab the Xorcist bitmasks, constructive algorithms, greedy, number theory	1700	x12199
1325C	Ehab and Path-etic MEXs constructive algorithms, dfs and similar, greedy, trees	1500	x13804
1325A	EhAb AnD gCd constructive algorithms, greedy, number theory	800	x40583
1322B	Present binary search, bitmasks, constructive algorithms, data structures, math, sortings	2100	x4264
1321C	Remove Adjacent brute force, constructive algorithms, greedy, strings	1600	x9886
1316D	Nash Matrix constructive algorithms, dfs and similar, graphs, implementation	2000	x3399
1316C	Primitive Primes constructive algorithms, math, ternary search	1800	x7310
1316B	String Modification brute force, constructive algorithms, implementation, sortings, strings	1400	x11302
1313B	Different Rules constructive algorithms, greedy, implementation, math	1700	x6715
1312B	Bogosort constructive algorithms, sortings	1000	x27373
1311E	Construct the Binary Tree brute force, constructive algorithms, trees	2200	x2396
1305E	Kuroni and the Score Distribution constructive algorithms, greedy, implementation, math	2200	x3137
1305D	Kuroni and the Celebration constructive algorithms, dfs and similar, interactive, trees	1900	x5055
1305B	Kuroni and Simple Strings constructive algorithms, greedy, strings, two pointers	1200	x11804
1305A	Kuroni and the Gifts brute force, constructive algorithms, greedy, sortings	800	x14141
1304D	Shortest and Longest LIS constructive algorithms, graphs, greedy, two pointers	1800	x6355
1304B	Longest Palindrome brute force, constructive algorithms, greedy, implementation, strings	1100	x17952
1302B	DAG constructive algorithms		x145
1301D	Time to Run constructive algorithms, graphs, implementation	2000	x4028
1296F	Berland Beauty constructive algorithms, dfs and similar, greedy, sortings, trees	2100	x2918
1296E1	String Coloring (easy version) constructive algorithms, dp, graphs, greedy, sortings	1800	x7540
1292E	Rin and The Unknown Flower constructive algorithms, greedy, interactive, math	3500	x371
1292B	Aroma's Search brute force, constructive algorithms, geometry, greedy, implementation	1700	x6411
1290D	Coffee Varieties (hard version) constructive algorithms, graphs, interactive	3000	x844
1290B	Irreducible Anagrams binary search, constructive algorithms, data structures, strings, two pointers	1800	x5517
1288F	Red-Blue Graph constructive algorithms, flows	2900	x525
1286F	Harry The Potter brute force, constructive algorithms, dp, fft, implementation, math	3100	x248
1286C2	Madhouse (Hard version) brute force, constructive algorithms, hashing, interactive, math	2800	x676
1286C1	Madhouse (Easy version) brute force, constructive algorithms, interactive, math	2400	x1458
1286B	Numbers on Tree constructive algorithms, data structures, dfs and similar, graphs, greedy, trees	1800	x4752
1285E	Delete a Segment brute force, constructive algorithms, data structures, dp, graphs, sortings, trees, two pointers	2300	x1851
1283F	DIY Garland constructive algorithms, greedy, trees	2200	x1876
1283C	Friends and Gifts constructive algorithms, data structures, math	1500	x13199
1282E	The Cake Is a Lie constructive algorithms, data structures, dfs and similar, graphs	2400	x1154
1282D	Enchanted Artifact constructive algorithms, interactive, strings	2300	x2255
1280F	Intergalactic Sliding Puzzle combinatorics, constructive algorithms, math	3400	x66
1278E	Tests for problem D constructive algorithms, dfs and similar, divide and conquer, trees	2200	x1931
1276E	Four Stones constructive algorithms	3500	x90
1276C	Beautiful Rectangle brute force, combinatorics, constructive algorithms, data structures, greedy, math	2300	x1676
1272B	Snow Walking Robot constructive algorithms, greedy, implementation	1200	x13957
1270I	Xor on Figures constructive algorithms, fft, math	3500	x241
1270G	Subset with Zero Sum constructive algorithms, dfs and similar, graphs, math	2700	x2315
1270E	Divide Points constructive algorithms, geometry, math	2300	x2395
1270D	Strange Device constructive algorithms, interactive, math, sortings	1900	x4699
1270C	Make Good bitmasks, constructive algorithms, math	1400	x14173
1270B	Interesting Subarray constructive algorithms, greedy, math	1200	x16456
1268A	Long Beautiful Integer constructive algorithms, greedy, implementation, strings	1700	x8684
1267L	Lexicography constructive algorithms, strings	1800	x3123
1267I	Intriguing Selection brute force, constructive algorithms, implementation, interactive, sortings	2600	x920
1267H	Help BerLine constructive algorithms	3200	x153
1267D	DevOps Best Practices constructive algorithms	2800	x232
1267C	Cactus Revenge constructive algorithms	3500	x384
1266D	Decreasing Debts constructive algorithms, data structures, graphs, greedy, implementation, math, two pointers	2000	x3652
1266C	Diverse Matrix constructive algorithms, greedy, math, number theory	1400	x9729
1266B	Dice Tower constructive algorithms, math	1000	x15174
1265A	Beautiful String constructive algorithms, greedy	1000	x15169
1264F	Beautiful Fibonacci Problem constructive algorithms, number theory	3500	x951
1264E	Beautiful League constructive algorithms, flows, graph matchings	2700	x816
1264B	Beautiful Sequence brute force, constructive algorithms, greedy	1900	x5832
1256F	Equalizing Two Strings constructive algorithms, sortings, strings	2000	x3341
1255C	League of Leesins constructive algorithms, implementation	1600	x6729
1254C	Point Ordering constructive algorithms, geometry, interactive, math	2300	x1463
1254B2	Send Boxes to Alice (Hard Version) constructive algorithms, greedy, math, number theory, ternary search, two pointers	2100	x3206
1254B1	Send Boxes to Alice (Easy Version) constructive algorithms, greedy, math, number theory, ternary search, two pointers	1800	x4696
1254A	Feeding Chicken constructive algorithms, greedy, implementation	1700	x5251
1253D	Harmonious Graph constructive algorithms, dfs and similar, dsu, graphs, greedy, sortings	1700	x9337
1250M	SmartGarden constructive algorithms, divide and conquer	2500	x361
1250B	The Feast and the Bus brute force, constructive algorithms, greedy, math	1800	x2619
1245B	Restricted RPS constructive algorithms, dp, greedy	1200	x13886
1244G	Running in Pairs constructive algorithms, greedy, math	2400	x1365
1244F	Chips constructive algorithms, implementation	2300	x1549
1244E	Minimizing Difference binary search, constructive algorithms, greedy, sortings, ternary search, two pointers	2000	x5252