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10314 Pasha and String constructive algorithms greedy math strings Statement B Codeforces Round 297 (Div. 2) {525} PROGRAMMING Codeforces Round #297 (Div.2) Editorial 1500
6098 Ilya and Sticks greedy math sortings Statement C Codeforces Round 297 (Div. 2) {525} PROGRAMMING Codeforces Round #297 (Div.2) Editorial 1600
4285 Anya and Cubes binary search bitmasks brute force dp math meet-in-the-middle Statement E Codeforces Round 297 (Div. 2) {525} PROGRAMMING Codeforces Round #297 (Div.2) Editorial 2200
2684 Om Nom and Candies brute force greedy math Statement C ZeptoLab Code Rush 2015 {526} PROGRAMMING ZeptoLab Code Rush 2015 — Editorial 2000
2501 Om Nom and Necklace hashing string suffix structures strings Statement D ZeptoLab Code Rush 2015 {526} PROGRAMMING ZeptoLab Code Rush 2015 — Editorial 2200
15729 Playing with Paper implementation math Statement A Codeforces Round 296 (Div. 2) {527} PROGRAMMING Codeforces Round #296 Editorial 1100
2456 Board Game games greedy implementation math Statement C VK Cup 2015 - Round 2 (unofficial online mirror, Div. 1 only) {533} PROGRAMMING Разбор VK Cup Round 2 1700
12970 Exam constructive algorithms implementation math Statement A Codeforces Round 298 (Div. 2) {534} PROGRAMMING 1100
11465 Covered Path dp greedy math Statement B Codeforces Round 298 (Div. 2) {534} PROGRAMMING 1400
5299 Polycarpus' Dice math Statement C Codeforces Round 298 (Div. 2) {534} PROGRAMMING 1600
4001 Tavas and Karafs binary search greedy math Statement C Codeforces Round 299 (Div. 2) {535} PROGRAMMING Codeforces Round #299 Editorial 1900
920 Tavas and Pashmaks geometry math Statement E Codeforces Round 299 (Div. 2) {535} PROGRAMMING Codeforces Round #299 Editorial 2900
6163 Tourist's Notes binary search brute force greedy implementation math Statement C Codeforces Round 300 {538} PROGRAMMING Codeforces Round #300 Editorial (+challenges) 1600
1879 A Heap of Heaps brute force data structures math sortings Statement F Codeforces Round 300 {538} PROGRAMMING Codeforces Round #300 Editorial (+challenges) 2200
1665 Demiurges Play Again dfs and similar dp math trees Statement E Codeforces Round 300 {538} PROGRAMMING Codeforces Round #300 Editorial (+challenges) 2200
618 Berserk Robot constructive algorithms math sortings Statement G Codeforces Round 300 {538} PROGRAMMING Codeforces Round #300 Editorial (+challenges) 3100
1293 Idempotent functions constructive algorithms graphs math Statement C VK Cup 2015 - Round 3 (unofficial online mirror, Div. 1 only) {542} PROGRAMMING 17697 2000
541 Superhero's Job dfs and similar dp hashing math number theory Statement D VK Cup 2015 - Round 3 (unofficial online mirror, Div. 1 only) {542} PROGRAMMING 17697 2600
14028 Soldier and Number Game constructive algorithms dp math number theory Statement D Codeforces Round 304 (Div. 2) {546} PROGRAMMING Codeforces Round #304 (Div.2) editorial 1700
4376 Soldier and Traveling flows graphs math Statement E Codeforces Round 304 (Div. 2) {546} PROGRAMMING Codeforces Round #304 (Div.2) editorial 2300
241150 Soldier and Bananas brute force implementation math Statement A Codeforces Round 304 (Div. 2) {546} PROGRAMMING Codeforces Round #304 (Div.2) editorial 800
2784 Mike and Frog brute force greedy implementation math Statement A Codeforces Round 305 (Div. 1) {547} PROGRAMMING Codeforces Round #305 Editorial 1900
3504 Mike and Foam bitmasks combinatorics dp math number theory Statement C Codeforces Round 305 (Div. 1) {547} PROGRAMMING Codeforces Round #305 Editorial 2700
2123 Degenerate Matrix binary search math Statement H Looksery Cup 2015 {549} PROGRAMMING Looksery Cup 2015 Editorial 2100
179 Sasha Circle geometry math Statement E Looksery Cup 2015 {549} PROGRAMMING Looksery Cup 2015 Editorial 3200
32628 Divisibility by Eight brute force dp math Statement C Codeforces Round 306 (Div. 2) {550} PROGRAMMING Разбор задач Codeforces Round #306 (Div. 2) 1500
1522 Brackets in Implications constructive algorithms greedy implementation math Statement E Codeforces Round 306 (Div. 2) {550} PROGRAMMING Codeforces Round #306 (Div. 2) Editorial 2300
2132 GukiZ and Binary Operations combinatorics implementation math matrices number theory Statement D Codeforces Round 307 (Div. 2) {551} PROGRAMMING Tutorial 2400
10254 Vanya and Table implementation math Statement A Codeforces Round 308 (Div. 2) {552} PROGRAMMING Codeforces #308 (Div. 2) Editorial 1100
16135 Vanya and Books implementation math Statement B Codeforces Round 308 (Div. 2) {552} PROGRAMMING Codeforces #308 (Div. 2) Editorial 1300
5887 Vanya and Scales brute force dp greedy math meet-in-the-middle number theory Statement C Codeforces Round 308 (Div. 2) {552} PROGRAMMING Codeforces #308 (Div. 2) Editorial 1800
4876 Vanya and Triangles brute force combinatorics data structures geometry math sortings Statement D Codeforces Round 308 (Div. 2) {552} PROGRAMMING Codeforces #308 (Div. 2) Editorial 1900
1762 Vanya and Brackets brute force dp expression parsing greedy implementation strings Statement E Codeforces Round 308 (Div. 2) {552} PROGRAMMING Codeforces #308 (Div. 2) Editorial 2300
10021 Kyoya and Colored Balls combinatorics dp math Statement A Codeforces Round 309 (Div. 1) {553} PROGRAMMING Codeforces Round #309 Editorial 1700
2283 Kyoya and Permutation binary search combinatorics constructive algorithms greedy implementation math Statement B Codeforces Round 309 (Div. 1) {553} PROGRAMMING Codeforces Round #309 Editorial 2200
711 Kyoya and Train dp fft graphs math probabilities Statement E Codeforces Round 309 (Div. 1) {553} PROGRAMMING Codeforces Round #309 Editorial 3300
14622 Kyoya and Photobooks brute force math strings Statement A Codeforces Round 309 (Div. 2) {554} PROGRAMMING Codeforces Round #309 Editorial 900
950 Case of a Top Secret binary search implementation math Statement D Codeforces Round 310 (Div. 1) {555} PROGRAMMING Codeforces Round #310 Editorial 2500
8534 Ilya and Diplomas greedy implementation math Statement A Codeforces Round 311 (Div. 2) {557} PROGRAMMING Codeforces Round #311 (Div.2) Editorial 1200
7515 Pasha and Tea constructive algorithms implementation math sortings Statement B Codeforces Round 311 (Div. 2) {557} PROGRAMMING Codeforces Round #311 (Div.2) Editorial 1500
4231 Arthur and Table brute force data structures dp greedy math sortings Statement C Codeforces Round 311 (Div. 2) {557} PROGRAMMING Codeforces Round #311 (Div.2) Editorial 1900
2422 Vitaly and Cycle combinatorics dfs and similar graphs math Statement D Codeforces Round 311 (Div. 2) {557} PROGRAMMING Codeforces Round #311 (Div.2) Editorial 2300
4231 Amr and Chemistry brute force graphs greedy math shortest paths Statement C Codeforces Round 312 (Div. 2) {558} PROGRAMMING Codeforces Round #312 (Div. 2) Editorial 2000
10942 Gerald's Hexagon brute force geometry math Statement A Codeforces Round 313 (Div. 1) {559} PROGRAMMING Codeforces Round 313 — Extended editoral 1600
8290 Gerald and Giant Chess combinatorics dp math number theory Statement C Codeforces Round 313 (Div. 1) {559} PROGRAMMING Codeforces Round 313 — Extended editoral 2500
4344 Clique in the Divisibility Graph dp math number theory Statement F VK Cup 2015 - Finals, online mirror {566} PROGRAMMING Editorial for VK Cup 2015 — Finals 1600
5420 Primes or Palindromes? brute force implementation math number theory Statement A Codeforces Round 315 (Div. 1) {568} PROGRAMMING Codeforces Round #315 Editorial 1700
2391 Symmetric and Transitive combinatorics dp math Statement B Codeforces Round 315 (Div. 1) {568} PROGRAMMING Codeforces Round #315 Editorial 2100
335 Sign Posts brute force geometry math Statement D Codeforces Round 315 (Div. 1) {568} PROGRAMMING Codeforces Round #315 Editorial 2800
7542 Inventory greedy math Statement B Codeforces Round 315 (Div. 2) {569} PROGRAMMING Codeforces Round #315 Editorial 1200
5077 Music implementation math Statement A Codeforces Round 315 (Div. 2) {569} PROGRAMMING Codeforces Round #315 Editorial 1500
16949 Simple Game constructive algorithms games greedy implementation math Statement B Codeforces Round 316 (Div. 2) {570} PROGRAMMING Codeforces Round #316 Editorial 1300
2729 Lengthening Sticks combinatorics implementation math Statement A Codeforces Round 317 [AimFund Thanks-Round] (Div. 1) {571} PROGRAMMING Codeforces Round #317 [AimFund Thanks-Round] Editorial 2300
353 Geometric Progressions math Statement E Codeforces Round 317 [AimFund Thanks-Round] (Div. 1) {571} PROGRAMMING Codeforces Round #317 [AimFund Thanks-Round] Editorial 3200
18592 Bear and Poker implementation math number theory Statement A Codeforces Round 318 [RussianCodeCup Thanks-Round] (Div. 1) {573} PROGRAMMING Codeforces Round #318 [RussianCodeCup Thanks-Round] Editorial 1400
6406 Bear and Blocks binary search data structures dp math Statement B Codeforces Round 318 [RussianCodeCup Thanks-Round] (Div. 1) {573} PROGRAMMING Codeforces Round #318 [RussianCodeCup Thanks-Round] Editorial 1800
882 Fibonotci data structures math matrices Statement A Bubble Cup 8 - Finals [Online Mirror] {575} PROGRAMMING Bubble Cup finals 2015 Results and Editorial 2800
16098 Vasya and Petya's Game math number theory Statement A Codeforces Round 319 (Div. 1) {576} PROGRAMMING Editorial Codeforces Round #319 1500
4976 A Problem about Polyline geometry math Statement A Codeforces Round 320 (Div. 1) [Bayan Thanks-Round] {578} PROGRAMMING Codeforces Round #320 [Bayan Thanks-Round] Editorial 1700
13723 Luxurious Houses implementation math Statement B Codeforces Round 322 (Div. 2) {581} PROGRAMMING Codeforces Round #322 (Div.2) Editorial 1200
7617 Developing Skills implementation math sortings Statement C Codeforces Round 322 (Div. 2) {581} PROGRAMMING Codeforces Round #322 (Div.2) Editorial 1400
4864 Three Logos bitmasks brute force constructive algorithms geometry implementation math Statement D Codeforces Round 322 (Div. 2) {581} PROGRAMMING Codeforces Round #322 (Div.2) Editorial 1700
86303 Vasya the Hipster implementation math Statement A Codeforces Round 322 (Div. 2) {581} PROGRAMMING Codeforces Round #322 (Div.2) Editorial 700
806 Number of Binominal Coefficients dp math number theory Statement D Codeforces Round 323 (Div. 1) {582} PROGRAMMING Codeforces Round #323 Editorial 3100
53447 Olesya and Rodion math Statement A Codeforces Round 324 (Div. 2) {584} PROGRAMMING Tutorial 1100
11283 Dima and Lisa brute force math number theory Statement D Codeforces Round 324 (Div. 2) {584} PROGRAMMING Tutorial 1700
1520 Anton and Ira constructive algorithms greedy math Statement E Codeforces Round 324 (Div. 2) {584} PROGRAMMING Tutorial 2400
1262 Present for Vitalik the Philatelist combinatorics math number theory Statement E Codeforces Round 325 (Div. 1) {585} PROGRAMMING Разбор Codeforces Round #325 2800
15076 Duff in Love math Statement B Codeforces Round 326 (Div. 2) {588} PROGRAMMING 1400
4393 Median Smoothing implementation Statement A Codeforces Round 327 (Div. 1) {590} PROGRAMMING Codeforces Round #327 problems analysis 1700
2058 Chip 'n Dale Rescue Rangers binary search geometry math Statement B Codeforces Round 327 (Div. 1) {590} PROGRAMMING Codeforces Round #327 problems analysis 2100
17397 Wizards' Duel implementation math Statement A Codeforces Round 327 (Div. 2) {591} PROGRAMMING 900
8865 The Monster and the Squirrel math Statement B Codeforces Round 328 (Div. 2) {592} PROGRAMMING Codeforces Round #328 Problem Analysis 1200
3202 The Big Race math Statement C Codeforces Round 328 (Div. 2) {592} PROGRAMMING Codeforces Round #328 Problem Analysis 1700
1452 Happy Tree Party data structures dfs and similar graphs math trees Statement D Codeforces Round 329 (Div. 2) {593} PROGRAMMING 2300
337 Beautiful Function constructive algorithms math Statement C Codeforces Round 329 (Div. 2) {593} PROGRAMMING 2700
582 Max and Bike binary search geometry Statement B Codeforces Round 330 (Div. 1) {594} PROGRAMMING Codeforces Round #330 (Div.1 + Div.2) Editorial 2400
2089 REQ data structures number theory Statement D Codeforces Round 330 (Div. 1) {594} PROGRAMMING Codeforces Round #330 (Div.1 + Div.2) Editorial 2500
3126 Pasha and Phone binary search math Statement B Codeforces Round 330 (Div. 2) {595} PROGRAMMING Codeforces Round #330 (Div.1 + Div.2) Editorial 1600
765 Wilbur and Trees dp math probabilities sortings Statement D Codeforces Round 331 (Div. 2) {596} PROGRAMMING Codeforces Round #331 Editorial 2500
4965 Divisibility math Statement A Testing Round 12 {597} PROGRAMMING 1600
32922 Tricky Sum math Statement A Educational Codeforces Round 1 {598} PROGRAMMING Editorial 1000
2738 Spongebob and Squares brute force math Statement D Codeforces Round 332 (Div. 2) {599} PROGRAMMING Editorial Codeforces Round #332 (Div. 2) 1800
2453 Lipshitz Sequence data structures math Statement B Codeforces Round 333 (Div. 1) {601} PROGRAMMING Codeforces Round #333 — editorial 2200
1458 Kleofáš and the n-thlon dp math probabilities Statement C Codeforces Round 333 (Div. 1) {601} PROGRAMMING Codeforces Round #333 — editorial 2400
8297 Alternative Thinking dp greedy math Statement A Codeforces Round 334 (Div. 1) {603} PROGRAMMING Codeforces Round #334 Bonus Editorial: More Ideas on Div. 1 E 1600
2718 Moodular Arithmetic combinatorics dfs and similar dsu math number theory Statement B Codeforces Round 334 (Div. 1) {603} PROGRAMMING Codeforces Round #334 Editorial 2000
2112 Lieges of Legendre games math Statement C Codeforces Round 334 (Div. 1) {603} PROGRAMMING Codeforces Round #334 Editorial 2300
1562 Pastoral Oddities data structures divide and conquer dsu math trees Statement E Codeforces Round 334 (Div. 1) {603} PROGRAMMING Codeforces Round #334 Bonus Editorial: More Ideas on Div. 1 E 2900
383 Ruminations on Ruminants geometry math Statement D Codeforces Round 334 (Div. 1) {603} PROGRAMMING Codeforces Round #334 Bonus Editorial: More Ideas on Div. 1 E 2900
10012 Saitama Destroys Hotel implementation math Statement A Codeforces Round 336 (Div. 2) {608} PROGRAMMING Codeforces Round #336 Editorial 1100
7460 Load Balancing implementation math Statement C Educational Codeforces Round 3 {609} PROGRAMMING Editorial 1500
28063 Pasha and Stick combinatorics math Statement A Codeforces Round 337 (Div. 2) {610} PROGRAMMING Codeforces Round #337 (Div.2) Editorial 1000
7659 HDD is Outdated Technology implementation math Statement B Educational Codeforces Round 4 {612} PROGRAMMING 22299 1200
10100 Replace To Make Regular Bracket Sequence data structures expression parsing math Statement C Educational Codeforces Round 4 {612} PROGRAMMING 22299 1500
2059 Square Root of Permutation combinatorics constructive algorithms dfs and similar graphs math Statement E Educational Codeforces Round 4 {612} PROGRAMMING 22299 2200
1110 Necklace constructive algorithms math Statement C Codeforces Round 339 (Div. 1) {613} PROGRAMMING Tutorial 2800
7316 Gena's Code implementation math Statement B Codeforces Round 339 (Div. 2) {614} PROGRAMMING Tutorial 1400
4341 Multipliers math number theory Statement D Codeforces Round 338 (Div. 2) {615} PROGRAMMING Codeforces Round #338 (Div. 2) editorial 1900
1098 Hexagons binary search implementation math Statement E Codeforces Round 338 (Div. 2) {615} PROGRAMMING Codeforces Round #338 (Div. 2) editorial 2200
3577 Sum of Remainders implementation math number theory Statement E Educational Codeforces Round 5 {616} PROGRAMMING Editorial of Educational Codeforces Round 5 2200
256065 Elephant math Statement A Codeforces Round 340 (Div. 2) {617} PROGRAMMING Tutorial 700
273 Combining Slimes dp math matrices probabilities Statement G Wunder Fund Round 2016 (Div. 1 + Div. 2 combined) {618} PROGRAMMING Wunder Fund Round 2016 Editorials 3300
14435 Professor GukiZ's Robot implementation math Statement A Educational Codeforces Round 6 {620} PROGRAMMING Editorial of Educational Codeforces Round 6 1000
6366 Wet Shark and Flowers combinatorics math number theory probabilities Statement C Codeforces Round 341 (Div. 2) {621} PROGRAMMING 1700
1116 Rat Kwesh and Cheese brute force constructive algorithms math Statement D Codeforces Round 341 (Div. 2) {621} PROGRAMMING Editorial 2200
10316 Infinite Sequence implementation math Statement A Educational Codeforces Round 7 {622} PROGRAMMING Editorial of Educational Codeforces Round 7 1100
5092 The Sum of the k-th Powers math Statement F Educational Codeforces Round 7 {622} PROGRAMMING Editorial of Educational Codeforces Round 7 2600
576 Birthday greedy math probabilities Statement D AIM Tech Round (Div. 1) {623} PROGRAMMING 2600
686 Transforming Sequence combinatorics dp fft math Statement E AIM Tech Round (Div. 1) {623} PROGRAMMING AIM Tech Round Tutorial 3300
11220 Save Luke math Statement A AIM Tech Round (Div. 2) {624} PROGRAMMING AIM Tech Round Tutorial 900
7190 K-special Tables constructive algorithms implementation Statement C Codeforces Round 342 (Div. 2) {625} PROGRAMMING Codeforces Round #342 (Div. 2) : editorial 1300
5678 Guest From the Past implementation math Statement A Codeforces Round 342 (Div. 2) {625} PROGRAMMING Codeforces Round #342 (Div. 2) : editorial 1700
708 Finals in arithmetic constructive algorithms implementation math Statement D Codeforces Round 342 (Div. 2) {625} PROGRAMMING Codeforces Round #342 (Div. 2) : editorial 2400
6966 Cards constructive algorithms dp math Statement B 8VC Venture Cup 2016 - Elimination Round {626} PROGRAMMING 23522 1300
4627 Block Towers brute force greedy math number theory Statement C 8VC Venture Cup 2016 - Elimination Round {626} PROGRAMMING 23522 1600
1648 Simple Skewness binary search math ternary search Statement E 8VC Venture Cup 2016 - Elimination Round {626} PROGRAMMING 23522 2400
752 Raffles data structures dp greedy math Statement G 8VC Venture Cup 2016 - Elimination Round {626} PROGRAMMING 23522 3000
4835 XOR Equation dp math Statement A 8VC Venture Cup 2016 - Final Round {627} PROGRAMMING 8VC Venture Cup 2016 — Final Round Editorial 1800
997 Bear and Fair Set flows Statement F Educational Codeforces Round 8 {628} PROGRAMMING 43203 2500
27484 Lucky Numbers combinatorics math Statement C Experimental Educational Round: VolBIT Formulas Blitz {630} PROGRAMMING 24160 1100
12819 Hexagons! math Statement D Experimental Educational Round: VolBIT Formulas Blitz {630} PROGRAMMING Разбор задач Experimental Educational Round: VolBIT Formulas Blitz 1200
12897 Divisibility math number theory Statement J Experimental Educational Round: VolBIT Formulas Blitz {630} PROGRAMMING Разбор задач Experimental Educational Round: VolBIT Formulas Blitz 1200
9687 Game games math Statement R Experimental Educational Round: VolBIT Formulas Blitz {630} PROGRAMMING Разбор задач Experimental Educational Round: VolBIT Formulas Blitz 1300
8434 Moore's Law math Statement B Experimental Educational Round: VolBIT Formulas Blitz {630} PROGRAMMING Разбор задач Experimental Educational Round: VolBIT Formulas Blitz 1400
8125 Selection of Personnel combinatorics math Statement F Experimental Educational Round: VolBIT Formulas Blitz {630} PROGRAMMING Разбор задач Experimental Educational Round: VolBIT Formulas Blitz 1500
5251 Forecast math Statement N Experimental Educational Round: VolBIT Formulas Blitz {630} PROGRAMMING Разбор задач Experimental Educational Round: VolBIT Formulas Blitz 1500
5731 Benches combinatorics math Statement H Experimental Educational Round: VolBIT Formulas Blitz {630} PROGRAMMING 24160 1700
4103 Cracking the Code implementation math Statement L Experimental Educational Round: VolBIT Formulas Blitz {630} PROGRAMMING Разбор задач Experimental Educational Round: VolBIT Formulas Blitz 1700
6450 Indivisibility math number theory Statement K Experimental Educational Round: VolBIT Formulas Blitz {630} PROGRAMMING Разбор задач Experimental Educational Round: VolBIT Formulas Blitz 1700
3343 Challenge Pennants combinatorics math Statement G Experimental Educational Round: VolBIT Formulas Blitz {630} PROGRAMMING Разбор задач Experimental Educational Round: VolBIT Formulas Blitz 1800
8470 Parking Lot combinatorics math Statement I Experimental Educational Round: VolBIT Formulas Blitz {630} PROGRAMMING Разбор задач Experimental Educational Round: VolBIT Formulas Blitz 1900
1413 Turn geometry math Statement M Experimental Educational Round: VolBIT Formulas Blitz {630} PROGRAMMING 24160 2000
1494 Pyramids geometry math Statement Q Experimental Educational Round: VolBIT Formulas Blitz {630} PROGRAMMING Разбор задач Experimental Educational Round: VolBIT Formulas Blitz 2100
2651 A rectangle math Statement E Experimental Educational Round: VolBIT Formulas Blitz {630} PROGRAMMING 24160 2100
4667 Longest Subsequence brute force math number theory Statement D Educational Codeforces Round 9 {632} PROGRAMMING 43493 2200
3657 Thief in a Shop divide and conquer dp fft math Statement E Educational Codeforces Round 9 {632} PROGRAMMING 43493 2500
14923 Ebony and Ivory brute force math number theory Statement A Manthan, Codefest 16 {633} PROGRAMMING Manthan, Codefest 16: Editorials 1200
7301 A Trivial Problem brute force constructive algorithms math number theory Statement B Manthan, Codefest 16 {633} PROGRAMMING Manthan, Codefest 16: Editorials 1300
3083 Fibonacci-ish brute force dp hashing implementation math Statement D Manthan, Codefest 16 {633} PROGRAMMING Manthan, Codefest 16: Editorials 2000
913 Yash And Trees bitmasks data structures dfs and similar math number theory Statement G Manthan, Codefest 16 {633} PROGRAMMING Manthan, Codefest 16: Editorials 2700
4400 Home Numbers *special constructive algorithms math Statement A VK Cup 2016 - Qualification Round 2 {638} PROGRAMMING 1500
1270 Bear and Polynomials hashing implementation math Statement C VK Cup 2016 - Round 1 {639} PROGRAMMING Tutorial 2200
639 Bear and Paradox greedy math sortings Statement E VK Cup 2016 - Round 1 {639} PROGRAMMING Tutorial 2800
1596 Little Artem and Random Variable dp implementation math probabilities Statement D VK Cup 2016 - Round 2 {641} PROGRAMMING VK Cup 2016 — Раунд 2 (editorial) 2300
738 Bear and Destroying Subtrees dp math probabilities trees Statement E VK Cup 2016 - Round 3 {643} PROGRAMMING VK Cup 2016 — Round 3 — Editorial 2600
867 Bears and Juice dp math meet-in-the-middle Statement F VK Cup 2016 - Round 3 {643} PROGRAMMING VK Cup 2016 — Round 3 — Editorial 2900
3735 Mischievous Mess Makers greedy math Statement B CROC 2016 - Elimination Round {645} PROGRAMMING Editorial for CROC 2016 Elimination Round 1300
1008 Cowslip Collections combinatorics math number theory Statement F CROC 2016 - Elimination Round {645} PROGRAMMING Editorial for CROC 2016 Elimination Round 2500
16747 Watchmen data structures geometry math Statement A Codeforces Round 345 (Div. 1) {650} PROGRAMMING Codeforces Round #345: editorial 1500
24260 Joysticks dp greedy implementation math Statement A Codeforces Round 345 (Div. 2) {651} PROGRAMMING 1100
5293 Gabriel and Caterpillar implementation math Statement A Educational Codeforces Round 10 {652} PROGRAMMING Editorial of Educational Codeforces Round 10 1400
718 Ants on a Circle constructive algorithms math Statement F Educational Codeforces Round 10 {652} PROGRAMMING Editorial of Educational Codeforces Round 10 2800
709 Move by Prime combinatorics math number theory Statement G IndiaHacks 2016 - Online Edition (Div. 1 + Div. 2) {653} PROGRAMMING IndiaHacks Finals 2016 — Editorial 3000
16960 Round House implementation math Statement A Codeforces Round 346 (Div. 2) {659} PROGRAMMING Editorial for Codeforces Round #346 (Div. 2) 1100
6740 Bicycle Race geometry implementation math Statement D Codeforces Round 346 (Div. 2) {659} PROGRAMMING Editorial for Codeforces Round #346 (Div. 2) 1500
10561 Co-prime Array greedy implementation math number theory Statement A Educational Codeforces Round 11 {660} PROGRAMMING Editorial of Educational Codeforces Round 11 1300
1735 International Olympiad constructive algorithms greedy implementation math Statement D CROC 2016 - Final Round [Private, For Onsite Finalists Only] {662} PROGRAMMING Editorial for CROC 2016 Finals and Codeforces Round #347 2000
619 Gambling Nim bitmasks math matrices probabilities Statement A CROC 2016 - Final Round [Private, For Onsite Finalists Only] {662} PROGRAMMING Editorial for CROC 2016 Finals and Codeforces Round #347 2400
2537 Binary Table bitmasks brute force divide and conquer dp fft math Statement C CROC 2016 - Final Round [Private, For Onsite Finalists Only] {662} PROGRAMMING Editorial for CROC 2016 Finals and Codeforces Round #347 2800
3808 Rebus constructive algorithms expression parsing greedy math Statement A Codeforces Round 347 (Div. 1) {663} PROGRAMMING Editorial for CROC 2016 Finals and Codeforces Round #347 1800
22248 Complicated GCD math number theory Statement A Codeforces Round 347 (Div. 2) {664} PROGRAMMING Editorial for CROC 2016 Finals and Codeforces Round #347 900
811 Four Divisors dp math number theory Statement F Educational Codeforces Round 12 {665} PROGRAMMING Editorial 2600
8562 Pouring Rain geometry math Statement A Codeforces Round 349 (Div. 2) {667} PROGRAMMING Codeforces Round #349 Editorial 1100
11761 Little Artem and Presents math Statement A Codeforces Round 348 (VK Cup 2016 Round 2, Div. 2 Edition) {669} PROGRAMMING VK Cup 2016 — Раунд 2 (editorial) 800
18801 Holidays brute force constructive algorithms greedy math Statement A Codeforces Round 350 (Div. 2) {670} PROGRAMMING Codeforces Round #350 (Div.2) Editorial 1000
3483 Correct Bracket Sequence Editor data structures dsu strings Statement E Codeforces Round 350 (Div. 2) {670} PROGRAMMING Codeforces Round #350 (Div.2) Editorial 1700
15740 Infinite Sequence math Statement A Codeforces Round 353 (Div. 2) {675} PROGRAMMING Tutorial 1100
7751 Restoring Painting brute force constructive algorithms math Statement B Codeforces Round 353 (Div. 2) {675} PROGRAMMING Tutorial 1400
5862 Pyramid of Glasses implementation math math Statement B Codeforces Round 354 (Div. 2) {676} PROGRAMMING Editorial 1500
964 The Last Fight Between Human and AI math Statement E Codeforces Round 354 (Div. 2) {676} PROGRAMMING Editorial 2300
7957 Vanya and Food Processor implementation math Statement B Codeforces Round 355 (Div. 2) {677} PROGRAMMING Codeforces Round #355 (Div. 2) Editorial 1400
15308 Johny Likes Numbers implementation math Statement A Educational Codeforces Round 13 {678} PROGRAMMING Editorial 1000
11202 Joty and Chocolate implementation math number theory Statement C Educational Codeforces Round 13 {678} PROGRAMMING Editorial 1600
5469 Iterated Linear Function math number theory Statement D Educational Codeforces Round 13 {678} PROGRAMMING Editorial 1800
15757 Bear and Prime 100 constructive algorithms interactive math Statement A Codeforces Round 356 (Div. 1) {679} PROGRAMMING Codeforces Round #356 — Editorial 1400
365 Bear and Chase brute force dfs and similar graphs implementation math probabilities Statement D Codeforces Round 356 (Div. 1) {679} PROGRAMMING Codeforces Round #356 — Editorial 2900
24225 Alyona and Numbers constructive algorithms math number theory Statement A Codeforces Round 358 (Div. 2) {682} PROGRAMMING 45491 1200
387 Chocolate Bar *special math Statement D Surprise Language Round 8 {683} PROGRAMMING 1700
4513 Robbers' watch brute force combinatorics dp math Statement A Codeforces Round 359 (Div. 1) {685} PROGRAMMING Codeforces Round #359 Editorial 1700
692 Optimal Point binary search math Statement C Codeforces Round 359 (Div. 1) {685} PROGRAMMING Codeforces Round #359 Editorial 2800
6989 Remainders Game chinese remainder theorem math number theory Statement B Codeforces Round 360 (Div. 1) {687} PROGRAMMING Codeforces Round #360 Editorial [+ Challenges!] 1900
36343 Lovely Palindromes constructive algorithms math Statement B Codeforces Round 360 (Div. 2) {688} PROGRAMMING Codeforces Round #360 Editorial [+ Challenges!] 1000
6270 Mike and Chocolate Thieves binary search combinatorics math Statement C Codeforces Round 361 (Div. 2) {689} PROGRAMMING 45912 1700
6659 Swaps in Permutation dfs and similar dsu math Statement D Educational Codeforces Round 14 {691} PROGRAMMING Editorial of Educational Codeforces Round 14 1700
3846 Puzzles dfs and similar math probabilities trees Statement B Codeforces Round 362 (Div. 1) {696} PROGRAMMING Codeforces Round #362 (Editorial) 1800
2236 PLEASE combinatorics dp implementation math matrices Statement C Codeforces Round 362 (Div. 1) {696} PROGRAMMING Codeforces Round #362 (Editorial) 2200
13428 Pineapple Incident implementation math Statement A Codeforces Round 362 (Div. 2) {697} PROGRAMMING 1000
6029 Barnicle brute force implementation math strings Statement B Codeforces Round 362 (Div. 2) {697} PROGRAMMING 1400
1466 LRU bitmasks dp math probabilities Statement C Codeforces Round 363 (Div. 1) {698} PROGRAMMING Solution 2700
3358 As Fast As Possible binary search math Statement A Codeforces Round 364 (Div. 1) {700} PROGRAMMING 46283 1900
12614 Cells Not Under Attack data structures math Statement B Codeforces Round 364 (Div. 2) {701} PROGRAMMING Codeforces Round #364 problem analysis 1200
13920 Powers of Two brute force data structures implementation math Statement B Educational Codeforces Round 15 {702} PROGRAMMING 46324 1500
3765 Road to Post Office math Statement D Educational Codeforces Round 15 {702} PROGRAMMING 46324 1900
6081 Mishka and trip implementation math Statement B Codeforces Round 365 (Div. 2) {703} PROGRAMMING Codeforces Round #365 (Div. 2) Editorial 1400
695 Mishka and Divisors dp number theory Statement E Codeforces Round 365 (Div. 2) {703} PROGRAMMING Codeforces Round #365 (Div. 2) Editorial 2900
558 Black Widow dp graphs implementation math Statement C Codeforces Round 366 (Div. 1) {704} PROGRAMMING Tutorial 2800
9609 Spider Man games math Statement B Codeforces Round 366 (Div. 2) {705} PROGRAMMING 1200
13564 Pythagorean Triples math number theory Statement C Codeforces Round 368 (Div. 2) {707} PROGRAMMING 46662 1500
3462 Recover the String constructive algorithms greedy implementation math Statement B AIM Tech Round 3 (Div. 1) {708} PROGRAMMING Editorial 1900
1381 Student's Camp dp math Statement E AIM Tech Round 3 (Div. 1) {708} PROGRAMMING 3100
5612 Magic Odd Square constructive algorithms math Statement C Educational Codeforces Round 16 {710} PROGRAMMING Editorial of Educational Codeforces Round 16 1600
1932 Two Arithmetic Progressions math Statement D Educational Codeforces Round 16 {710} PROGRAMMING Editorial of Educational Codeforces Round 16 2500
5076 Directed Roads combinatorics dfs and similar graphs math Statement D Codeforces Round 369 (Div. 2) {711} PROGRAMMING 46830 1900
1429 ZS and The Birthday Paradox math number theory probabilities Statement E Codeforces Round 369 (Div. 2) {711} PROGRAMMING 46830 2400
6236 Memory and De-Evolution greedy math Statement C Codeforces Round 370 (Div. 2) {712} PROGRAMMING Codeforces Round #370 Editorial 1600
2034 Memory and Scores combinatorics dp math Statement D Codeforces Round 370 (Div. 2) {712} PROGRAMMING Codeforces Round #370 Editorial 2100
739 Memory and Casinos data structures math probabilities Statement E Codeforces Round 370 (Div. 2) {712} PROGRAMMING Codeforces Round #370 Editorial 2700
12632 Memory and Crow implementation math Statement A Codeforces Round 370 (Div. 2) {712} PROGRAMMING Codeforces Round #370 Editorial 900
11190 Meeting of Old Friends implementation math Statement A Codeforces Round 371 (Div. 2) {714} PROGRAMMING Codeforces Round #371 Editorial 1100
5893 Plus and Square Root constructive algorithms math Statement A Codeforces Round 372 (Div. 1) {715} PROGRAMMING Codeforces Round #372 Editorial 1600
540 Complete the Permutations combinatorics fft graphs math Statement E Codeforces Round 372 (Div. 1) {715} PROGRAMMING Codeforces Round #372 Editorial 3400
487 Pokermon League challenge math probabilities Statement H Bubble Cup 9 - Finals [Online Mirror] {717} PROGRAMMING Tutorial 2400
468 Festival Organization math number theory Statement A Bubble Cup 9 - Finals [Online Mirror] {717} PROGRAMMING Tutorial 3000
4637 Efim and Strange Grade dp implementation math Statement A Codeforces Round 373 (Div. 1) {718} PROGRAMMING Codeforces Round #373 — Editorial 1700
4754 Sasha and Array data structures math matrices Statement C Codeforces Round 373 (Div. 1) {718} PROGRAMMING Codeforces Round #373 — Editorial 2300
12523 Passwords implementation math sortings strings Statement B Codeforces Round 374 (Div. 2) {721} PROGRAMMING Codeforces Round #374 (Div. 2) Editorial 1200
2514 Maxim and Array constructive algorithms data structures greedy math Statement D Codeforces Round 374 (Div. 2) {721} PROGRAMMING Codeforces Round #374 (Div. 2) Editorial 2000
103167 The New Year: Meeting Friends implementation math sortings Statement A Codeforces Round 375 (Div. 2) {723} PROGRAMMING Codeforces Round #375 (Div.2) Editorial 800
4262 Batch Sort brute force greedy implementation math Statement B Intel Code Challenge Final Round (Div. 1 + Div. 2, Combined) {724} PROGRAMMING Tutorial 1500
2289 Ray Tracing greedy hashing implementation math number theory sortings Statement C Intel Code Challenge Final Round (Div. 1 + Div. 2, Combined) {724} PROGRAMMING Tutorial 1800
1575 Xor-matic Number of the Graph bitmasks graphs math number theory trees Statement G Intel Code Challenge Final Round (Div. 1 + Div. 2, Combined) {724} PROGRAMMING Tutorial 2600
5364 Food on the Plane implementation math Statement B Canada Cup 2016 {725} PROGRAMMING 1200
18516 Transformation: from A to B brute force dfs and similar math Statement A Technocup 2017 - Elimination Round 1 (Unofficially Open for Everyone, Rated for Div. 2) {727} PROGRAMMING Tutorial 1100
9149 Guess the Array constructive algorithms interactive math Statement C Technocup 2017 - Elimination Round 1 (Unofficially Open for Everyone, Rated for Div. 2) {727} PROGRAMMING Tutorial 1400
4105 Sea Battle constructive algorithms greedy math Statement D Technocup 2017 - Elimination Round 2 {729} PROGRAMMING 1700
955 Running Over The Bridges greedy implementation math Statement D 2016-2017 ACM-ICPC, NEERC, Southern Subregional Contest (Online Mirror, ACM-ICPC Rules, Teams Preferred) {730} PROGRAMMING Разбор задач (видео, по-русски) 2400
3167 Video Cards brute force data structures implementation math number theory Statement F Codeforces Round 376 (Div. 2) {731} PROGRAMMING 47840 1900
10212 Sanatorium binary search constructive algorithms greedy implementation math Statement C Codeforces Round 377 (Div. 2) {732} PROGRAMMING Codeforces Round #377 (Div. 2) Editorial 1300
90697 Buy a Shovel brute force constructive algorithms implementation math Statement A Codeforces Round 377 (Div. 2) {732} PROGRAMMING Codeforces Round #377 (Div. 2) Editorial 800
10988 Parade math Statement B Codeforces Round 378 (Div. 2) {733} PROGRAMMING Codeforces Round #378 (Div. 2) editorial 1100
1104 Sleep in Class constructive algorithms data structures math two pointers Statement E Codeforces Round 378 (Div. 2) {733} PROGRAMMING Codeforces Round #378 (Div. 2) editorial 2500
1433 Anton and School bitmasks constructive algorithms implementation math Statement F Codeforces Round 379 (Div. 2) {734} PROGRAMMING Tutorial of Codeforces Round #379 (Div. 2) 2600
32217 Anton and Digits brute force greedy implementation math Statement B Codeforces Round 379 (Div. 2) {734} PROGRAMMING Tutorial of Codeforces Round #379 (Div. 2) 800
16172 Taxes math number theory Statement D Codeforces Round 382 (Div. 2) {735} PROGRAMMING Codeforces Round #382 Editorial 1600
8018 Tennis Championship combinatorics constructive algorithms greedy math Statement C Codeforces Round 382 (Div. 2) {735} PROGRAMMING Codeforces Round #382 Editorial 1700
568 Permutations math matrices Statement D Codeforces Round 382 (Div. 1) {736} PROGRAMMING 48659 2700
226 Chess Championship constructive algorithms flows greedy math Statement E Codeforces Round 382 (Div. 1) {736} PROGRAMMING 48659 2800
85 Dirty plates constructive algorithms math Statement F Codeforces Round 380 (Div. 1, Rated, Based on Technocup 2017 - Elimination Round 2) {737} PROGRAMMING 3300
2747 Gosha is hunting brute force data structures dp flows math probabilities sortings Statement E Codeforces Round 381 (Div. 1) {739} PROGRAMMING 48582 2900
5713 Arpa's loud Owf and Mehrdad's evil plan dfs and similar math Statement A Codeforces Round 383 (Div. 1) {741} PROGRAMMING Codeforces Round #383 editorial 1600
53142 Arpa’s hard exam and Mehrdad’s naive cheat implementation math number theory Statement A Codeforces Round 383 (Div. 2) {742} PROGRAMMING Test data 1000
10122 Arpa’s obvious problem and Mehrdad’s terrible solution brute force math number theory Statement B Codeforces Round 383 (Div. 2) {742} PROGRAMMING Test data 1500
13552 Vladik and fractions brute force constructive algorithms math number theory Statement C Codeforces Round 384 (Div. 2) {743} PROGRAMMING Codeforces Round #384 Editorial 1500
5385 Green and Black Tea constructive algorithms greedy math Statement D Codeforces Round 386 (Div. 2) {746} PROGRAMMING Codeforces Round #386 (Div.2) Editorial 1500
3875 Tram constructive algorithms implementation math Statement C Codeforces Round 386 (Div. 2) {746} PROGRAMMING Codeforces Round #386 (Div.2) Editorial 1600
1910 Numbers Exchange greedy implementation math Statement E Codeforces Round 386 (Div. 2) {746} PROGRAMMING Codeforces Round #386 (Div.2) Editorial 1800
24004 Compote implementation math Statement A Codeforces Round 386 (Div. 2) {746} PROGRAMMING Codeforces Round #386 (Div.2) Editorial 800
11305 Display Size brute force math Statement A Codeforces Round 387 (Div. 2) {747} PROGRAMMING 49171 1000
513 Igor and Interesting Numbers brute force combinatorics dp math Statement F Codeforces Round 387 (Div. 2) {747} PROGRAMMING 49171 2600