Problemset - Codeforces

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Rayan Programming Contest 2024 - Selection (Codeforces Round 989, Div. 1 + Div. 2)
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Problems

#	Name
1357D5	Quantum Classification - Dataset 7		x82
1357D4	Quantum Classification - Dataset 6		x85
1357D3	Quantum Classification - Dataset 5		x105
1357D2	Quantum Classification - Dataset 4		x112
1357D1	Quantum Classification - Dataset 3		x125
1357C2	Prepare superposition of basis states with the same parity		x304
1357C1	Prepare superposition of basis states with 0s		x348
1357B2	"Is the number divisible by 3?" oracle		x214
1357B1	"Is the bit string balanced?" oracle		x214
1357A7	Distinguish Y, XZ, -Y and -XZ		x183
1357A6	Distinguish four Pauli gates		x168
1357A5	Distinguish Rz(θ) from Ry(θ)		x241
1357A4	Distinguish Rz from R1		x352
1357A3	Distinguish H from X		x479
1357A2	Distinguish I, CNOTs and SWAP		x511
1357A1	Figure out direction of CNOT		x632
1356D2	Quantum Classification - 2 *special problem		x128
1356D1	Quantum Classification - 1 *special problem		x137
1356C	Prepare state \|01⟩ + \|10⟩ + \|11⟩ *special problem		x303
1356B2	Decrement *special problem		x283
1356B1	Increment *special problem		x283
1356A5	Distinguish Z from -Z *special problem		x331
1356A4	Distinguish I ⊗ X from CNOT *special problem		x459
1356A3	Distinguish Z from S *special problem		x461
1356A2	Distinguish I from Z *special problem		x488
1356A1	Distinguish I from X *special problem		x603
1355F	Guess Divisors Count constructive algorithms, interactive, number theory	2600	x875
1355E	Restorer Distance binary search, greedy, math, sortings, ternary search	2100	x5209
1355D	Game With Array constructive algorithms, math	1400	x18137
1355C	Count Triangles binary search, implementation, math, two pointers	1800	x10744
1355B	Young Explorers dp, greedy, sortings	1200	x25893
1355A	Sequence with Digits brute force, implementation, math	1200	x26792
1354G	Find a Gift binary search, interactive, probabilities	2600	x799
1354F	Summoning Minions constructive algorithms, dp, flows, graph matchings, greedy, sortings	2500	x1237
1354E	Graph Coloring dfs and similar, dp, graphs	2100	x3386
1354D	Multiset binary search, data structures	1900	x8914
1354C2	Not So Simple Polygon Embedding binary search, brute force, geometry, math	2000	x6112
1354C1	Simple Polygon Embedding binary search, geometry, math, ternary search	1400	x15748
1354B	Ternary String binary search, dp, implementation, two pointers	1200	x31306
1354A	Alarm Clock math	900	x23880
1353F	Decreasing Heights brute force, dp	2200	x3367
1353E	K-periodic Garland brute force, dp, greedy	1900	x7216
1353D	Constructing the Array constructive algorithms, data structures, sortings	1600	x18260
1353C	Board Moves math	1000	x35722
1353B	Two Arrays And Swaps greedy, sortings	800	x50455
1353A	Most Unstable Array constructive algorithms, greedy, math	800	x41229
1352G	Special Permutation constructive algorithms	1600	x21573
1352F	Binary String Reconstruction constructive algorithms, dfs and similar, math	1500	x17328
1352E	Special Elements brute force, implementation, two pointers	1500	x20771
1352D	Alice, Bob and Candies implementation	1300	x26472
1352C	K-th Not Divisible by n binary search, math	1200	x55897
1352B	Same Parity Summands constructive algorithms, math	1200	x38165
1352A	Sum of Round Numbers implementation, math	800	x81452
1351C	Skier data structures, implementation	1400	x8637
1351B	Square? brute force, implementation, math	900	x17122
1351A	A+B (Trial Problem) implementation	800	x24265
1350B	Orac and Models dp, math, number theory	1400	x22575
1350A	Orac and Factors math	900	x26155
1349F2	Slime and Sequences (Hard Version) dp, fft, math	3500	x115
1349F1	Slime and Sequences (Easy Version) dp, fft, math	3100	x421
1349E	Slime and Hats constructive algorithms, dp, greedy	3500	x92
1349D	Slime and Biscuits math, probabilities	3200	x925
1349C	Orac and Game of Life dfs and similar, graphs, implementation, shortest paths	2000	x4548
1349B	Orac and Medians constructive algorithms, greedy, math	2000	x8209
1349A	Orac and LCM data structures, math, number theory	1600	x17338
1348F	Phoenix and Memory data structures, dfs and similar, graphs, greedy	2600	x822
1348E	Phoenix and Berries brute force, dp, greedy, math	2400	x2250
1348D	Phoenix and Science binary search, constructive algorithms, greedy, implementation, math	1900	x8919
1348C	Phoenix and Distribution constructive algorithms, greedy, sortings, strings	1600	x14691
1348B	Phoenix and Beauty constructive algorithms, data structures, greedy, sortings	1400	x25556
1348A	Phoenix and Balance greedy, math	800	x39812
1346I	Pac-Man 2.0 *special problem, dp	2900	x49
1346H	Game with Segments *special problem, data structures, games	2700	x50
1346G	Two IP Cameras *special problem, math, number theory	2300	x135
1346F	Dune II: Battle For Arrakis *special problem, data structures, greedy, math	2000	x228
1346E	Magic Tricks *special problem, dp, graphs	1700	x380
1346D	Constructing the Dungeon *special problem, graphs, greedy	1600	x507
1346C	Spring Cleaning *special problem, greedy, sortings	1600	x608
1346B	Boot Camp *special problem, greedy	1400	x1211
1346A	Color Revolution *special problem, math	1000	x2044
1345B	Card Constructions binary search, brute force, dp, math	1100	x26665
1345A	Puzzle Pieces math	800	x24259
1344F	Piet's Palette matrices	3200	x455
1344E	Train Tracks data structures, trees	3100	x463
1344D	Résumé Review binary search, greedy, math	2700	x1173
1344C	Quantifier Question dfs and similar, dp, graphs, math	2600	x1873
1344B	Monopole Magnets constructive algorithms, dfs and similar, dsu, graphs	2000	x6087
1344A	Hilbert's Hotel math, number theory, sortings	1600	x15704
1343F	Restore the Permutation by Sorted Segments brute force, constructive algorithms, data structures, greedy, implementation	2400	x1273
1343E	Weights Distributing brute force, graphs, greedy, shortest paths, sortings	2100	x5232
1343D	Constant Palindrome Sum brute force, data structures, greedy, two pointers	1700	x12768
1343C	Alternating Subsequence dp, greedy, two pointers	1200	x38784
1343B	Balanced Array constructive algorithms, math	800	x57198
1343A	Candies brute force, math	900	x48414
1342F	Make It Ascending bitmasks, brute force, dp	3000	x768
1342E	Placing Rooks combinatorics, fft, math	2300	x3124
1342D	Multiple Testcases binary search, constructive algorithms, data structures, greedy, sortings, two pointers	1900	x6134
1342C	Yet Another Counting Problem math, number theory	1600	x14109
1342B	Binary Period constructive algorithms, strings	1100	x23774
1342A	Road To Zero greedy, math	1000	x41037