Problemset - Codeforces

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IAEPC Preliminary Contest (Codeforces Round 999, Div. 1 + Div. 2)
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Problems

#	Name
520A	Pangram implementation, strings	800	x102472
519E	A and B and Lecture Rooms binary search, data structures, dfs and similar, dp, trees	2100	x7089
519D	A and B and Interesting Substrings data structures, dp, two pointers	1800	x6428
519C	A and B and Team Training greedy, implementation, math, number theory	1300	x19913
519B	A and B and Compilation Errors data structures, implementation, sortings	1100	x40223
519A	A and B and Chess implementation	900	x19175
518F	Pasha and Pipe binary search, brute force, combinatorics, dp, implementation	2300	x385
518E	Arthur and Questions greedy, implementation, math, ternary search	2200	x1006
518D	Ilya and Escalator combinatorics, dp, math, probabilities	1700	x7125
518C	Anya and Smartphone constructive algorithms, data structures, implementation	1600	x6075
518B	Tanya and Postcard greedy, implementation, strings	1400	x8034
518A	Vitaly and Strings constructive algorithms, strings	1600	x9261
516E	Drazil and His Happy Friends math, number theory	3100	x522
516D	Drazil and Morning Exercise dfs and similar, dp, dsu, trees, two pointers	2800	x1336
515E	Drazil and Park data structures	2300	x2195
515D	Drazil and Tiles constructive algorithms, greedy	2000	x2875
515C	Drazil and Factorial greedy, math, sortings	1400	x26437
515B	Drazil and His Happy Friends brute force, dsu, meet-in-the-middle, number theory	1300	x7494
515A	Drazil and Date math	1000	x20571
514E	Darth Vader and Tree dp, matrices	2200	x1461
514D	R2D2 and Droid Army binary search, data structures, two pointers	2000	x4570
514C	Watto and Mechanism binary search, data structures, hashing, string suffix structures, strings	2000	x7067
514B	Han Solo and Lazer Gun brute force, data structures, geometry, implementation, math	1400	x21101
514A	Chewbaсca and Number greedy, implementation	1200	x55533
513G3	Inversions problem dp	3100	x268
513G2	Inversions problem dp, probabilities	2400	x667
513G1	Inversions problem brute force, dfs and similar, dp, meet-in-the-middle	1800	x1798
513F2	Scaygerboss flows	2800	x364
513F1	Scaygerboss flows	2700	x329
513E2	Subarray Cuts dp	2700	x601
513E1	Subarray Cuts dp	2600	x500
513D2	Constrained Tree constructive algorithms, data structures	2600	x386
513D1	Constrained Tree dfs and similar	2400	x622
513C	Second price auction bitmasks, probabilities	2000	x1569
513B2	Permutations bitmasks, divide and conquer, math	1800	x2821
513B1	Permutations brute force	1400	x3730
513A	Game constructive algorithms, math	800	x20703
512E	Fox And Polygon constructive algorithms, divide and conquer	2900	x524
512D	Fox And Travelling dp, trees	2900	x988
510E	Fox And Dinner flows	2300	x2247
510D	Fox And Jumping bitmasks, brute force, dp, math	1900	x5757
510C	Fox And Names dfs and similar, graphs, sortings	1600	x16875
510B	Fox And Two Dots dfs and similar	1500	x14244
510A	Fox And Snake implementation	800	x87374
509F	Progress Monitoring dp, trees	2300	x1088
509E	Pretty Song math, strings	2000	x1808
509D	Restoring Numbers constructive algorithms, math	2200	x765
509C	Sums of Digits dp, greedy, implementation	2000	x2115
509B	Painting Pebbles constructive algorithms, greedy, implementation	1300	x9694
509A	Maximum in Table brute force, implementation	800	x39031
508E	Arthur and Brackets dp, greedy	2200	x1788
508D	Tanya and Password dfs and similar, graphs	2500	x3559
508C	Anya and Ghosts constructive algorithms, greedy	1600	x4496
508B	Anton and currency you all know greedy, math, strings	1300	x22873
508A	Pasha and Pixels brute force	1100	x7996
507E	Breaking Good dfs and similar, dp, graphs, shortest paths	2100	x2979
507D	The Maths Lecture dp, implementation	2200	x1870
507C	Guess Your Way Out! implementation, math, trees	1700	x4395
507B	Amr and Pins geometry, math	1400	x25049
507A	Amr and Music greedy, implementation, sortings	1000	x19038
506E	Mr. Kitayuta's Gift combinatorics, dp, matrices, strings	3000	x769
506D	Mr. Kitayuta's Colorful Graph brute force, dfs and similar, dsu, graphs	2400	x2210
505E	Mr. Kitayuta vs. Bamboos binary search, greedy	2900	x1423
505D	Mr. Kitayuta's Technology dfs and similar	2200	x2619
505C	Mr. Kitayuta, the Treasure Hunter dfs and similar, dp, two pointers	1900	x6540
505B	Mr. Kitayuta's Colorful Graph dfs and similar, dp, dsu, graphs	1400	x13342
505A	Mr. Kitayuta's Gift brute force, implementation, strings	1100	x6709
504E	Misha and LCP on Tree binary search, dfs and similar, hashing, string suffix structures, trees	3000	x950
504D	Misha and XOR bitmasks	2700	x310
501E	Misha and Palindrome Degree binary search, combinatorics, implementation	2500	x925
501D	Misha and Permutations Summation data structures	2000	x2459
501C	Misha and Forest constructive algorithms, data structures, greedy, sortings, trees	1500	x5689
501B	Misha and Changing Handles data structures, dsu, strings	1100	x16971
501A	Contest implementation	900	x23077
500G	New Year Running number theory, trees	3200	x157
500F	New Year Shopping divide and conquer, dp	2700	x752
500E	New Year Domino data structures, dp, dsu	2300	x1470
500D	New Year Santa Network combinatorics, dfs and similar, graphs, trees	1900	x3138
500C	New Year Book Reading constructive algorithms, greedy, implementation, math	1600	x5844
500B	New Year Permutation dfs and similar, dsu, graphs, greedy, math, sortings	1600	x8971
500A	New Year Transportation dfs and similar, graphs, implementation	1000	x54628
499B	Lecture implementation, strings	1000	x40226
499A	Watching a movie greedy, implementation	1000	x14055
498E	Stairs and Lines dp, matrices	2700	x481
498D	Traffic Jams in the Land data structures, dp, number theory	2400	x1139
498C	Array and Operations flows, graph matchings, number theory	2100	x3569
498B	Name That Tune dp, probabilities, two pointers	2400	x1199
498A	Crazy Town geometry	1700	x6516
497E	Subsequences Return dp, matrices	2900	x288
497D	Gears brute force, geometry, math	2900	x231
496E	Distributing Parts greedy, sortings	2100	x1681
496D	Tennis Game binary search	1900	x3047
496C	Removing Columns brute force, constructive algorithms, implementation	1500	x7802
496B	Secret Combination brute force, constructive algorithms, implementation	1500	x5964
496A	Minimum Difficulty brute force, implementation, math	900	x16589
495B	Modular Equations math, number theory	1600	x7217
495A	Digital Counter implementation	1100	x8570
494E	Sharti data structures, games	3200	x324
494D	Birthday data structures, dfs and similar, dp, trees	2700	x622
494C	Helping People dp, probabilities	2600	x882