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1888 Forbidden Indices dsu string suffix structures strings Statement F Educational Codeforces Round 30 {873} PROGRAMMING 55171 2300
797 Awards For Contestants brute force data structures dp Statement E Educational Codeforces Round 30 {873} PROGRAMMING 55171 2500
10659 Chores implementation Statement A Educational Codeforces Round 30 {873} PROGRAMMING 55171 900
10279 Classroom Watch brute force math Statement A Codeforces Round 441 (Div. 1, by Moscow Team Olympiad) {875} PROGRAMMING Codeforces Round #441. Editorial. 1200
5395 Sorting the Coins dsu implementation sortings two pointers Statement B Codeforces Round 441 (Div. 1, by Moscow Team Olympiad) {875} PROGRAMMING Codeforces Round #441. Editorial. 1500
2391 National Property 2-sat dfs and similar graphs implementation Statement C Codeforces Round 441 (Div. 1, by Moscow Team Olympiad) {875} PROGRAMMING Codeforces Round #441. Editorial. 2100
2521 High Cry binary search bitmasks combinatorics data structures divide and conquer Statement D Codeforces Round 441 (Div. 1, by Moscow Team Olympiad) {875} PROGRAMMING Codeforces Round #441. Editorial. 2200
1591 Royal Questions dsu graphs greedy Statement F Codeforces Round 441 (Div. 1, by Moscow Team Olympiad) {875} PROGRAMMING Codeforces Round #441. Editorial. 2500
1011 Delivery Club binary search data structures dp Statement E Codeforces Round 441 (Div. 1, by Moscow Team Olympiad) {875} PROGRAMMING Codeforces Round #441. Editorial. 2600
10066 Trip For Meal math Statement A Codeforces Round 441 (Div. 2, by Moscow Team Olympiad) {876} PROGRAMMING Codeforces Round #441. Editorial. 1000
10374 Divisiblity of Differences implementation math number theory Statement B Codeforces Round 441 (Div. 2, by Moscow Team Olympiad) {876} PROGRAMMING Codeforces Round #441. Editorial. 1300
11570 Alex and broken contest implementation strings Statement A Codeforces Round 442 (Div. 2) {877} PROGRAMMING 55362 1200
12018 Nikita and string brute force dp Statement B Codeforces Round 442 (Div. 2) {877} PROGRAMMING 55362 1500
6076 Slava and tanks constructive algorithms Statement C Codeforces Round 442 (Div. 2) {877} PROGRAMMING 55362 1600
5144 Olya and Energy Drinks data structures dfs and similar graphs shortest paths Statement D Codeforces Round 442 (Div. 2) {877} PROGRAMMING 55362 1900
5579 Danil and a Part-time Job bitmasks data structures trees Statement E Codeforces Round 442 (Div. 2) {877} PROGRAMMING 55362 2000
2360 Ann and Books data structures flows hashing Statement F Codeforces Round 442 (Div. 2) {877} PROGRAMMING 55362 2500
6002 Short Program bitmasks constructive algorithms Statement A Codeforces Round 443 (Div. 1) {878} PROGRAMMING Editorial 1600
1121 Teams Formation data structures implementation Statement B Codeforces Round 443 (Div. 1) {878} PROGRAMMING Editorial 2400
1031 Tournament data structures graphs Statement C Codeforces Round 443 (Div. 1) {878} PROGRAMMING Editorial 2800
877 Magic Breeding bitmasks Statement D Codeforces Round 443 (Div. 1) {878} PROGRAMMING Editorial 2900
739 Numbers on the blackboard combinatorics dp Statement E Codeforces Round 443 (Div. 1) {878} PROGRAMMING Editorial 3200
9599 Borya's Diagnosis implementation Statement A Codeforces Round 443 (Div. 2) {879} PROGRAMMING Codeforces Round #443. Editorial 1000
14542 Table Tennis data structures implementation Statement B Codeforces Round 443 (Div. 2) {879} PROGRAMMING Codeforces Round #443. Editorial 1300
3858 Quadcopter Competition greedy math Statement M 2017-2018 ACM-ICPC, NEERC, Southern Subregional Contest (Online Mirror, ACM-ICPC Rules, Teams Preferred) {883} PROGRAMMING 1100
2391 Lost in Transliteration implementation Statement F 2017-2018 ACM-ICPC, NEERC, Southern Subregional Contest (Online Mirror, ACM-ICPC Rules, Teams Preferred) {883} PROGRAMMING 1300
2041 Field of Wonders implementation strings Statement E 2017-2018 ACM-ICPC, NEERC, Southern Subregional Contest (Online Mirror, ACM-ICPC Rules, Teams Preferred) {883} PROGRAMMING 1600
1788 Palindromic Cut brute force implementation strings Statement H 2017-2018 ACM-ICPC, NEERC, Southern Subregional Contest (Online Mirror, ACM-ICPC Rules, Teams Preferred) {883} PROGRAMMING 1800
2322 Photo Processing binary search dp Statement I 2017-2018 ACM-ICPC, NEERC, Southern Subregional Contest (Online Mirror, ACM-ICPC Rules, Teams Preferred) {883} PROGRAMMING 2000
1522 Orientation of Edges dfs and similar graphs Statement G 2017-2018 ACM-ICPC, NEERC, Southern Subregional Contest (Online Mirror, ACM-ICPC Rules, Teams Preferred) {883} PROGRAMMING 2000
1219 Road Widening constructive algorithms greedy implementation Statement K 2017-2018 ACM-ICPC, NEERC, Southern Subregional Contest (Online Mirror, ACM-ICPC Rules, Teams Preferred) {883} PROGRAMMING 2100
656 Automatic Door implementation Statement A 2017-2018 ACM-ICPC, NEERC, Southern Subregional Contest (Online Mirror, ACM-ICPC Rules, Teams Preferred) {883} PROGRAMMING 2300
667 Downloading B++ binary search Statement C 2017-2018 ACM-ICPC, NEERC, Southern Subregional Contest (Online Mirror, ACM-ICPC Rules, Teams Preferred) {883} PROGRAMMING 2400
626 Renovation greedy sortings Statement J 2017-2018 ACM-ICPC, NEERC, Southern Subregional Contest (Online Mirror, ACM-ICPC Rules, Teams Preferred) {883} PROGRAMMING 2600
492 Packmen Strike Back binary search dp Statement D 2017-2018 ACM-ICPC, NEERC, Southern Subregional Contest (Online Mirror, ACM-ICPC Rules, Teams Preferred) {883} PROGRAMMING 2800
266 Berland.Taxi data structures Statement L 2017-2018 ACM-ICPC, NEERC, Southern Subregional Contest (Online Mirror, ACM-ICPC Rules, Teams Preferred) {883} PROGRAMMING 2800
425 Berland Army constructive algorithms graphs greedy Statement B 2017-2018 ACM-ICPC, NEERC, Southern Subregional Contest (Online Mirror, ACM-ICPC Rules, Teams Preferred) {883} PROGRAMMING 2800
7697 Japanese Crosswords Strike Back implementation Statement B Educational Codeforces Round 31 {884} PROGRAMMING 55470 1100
5183 Bertown Subway dfs and similar greedy math Statement C Educational Codeforces Round 31 {884} PROGRAMMING 55470 1500
2239 Boxes And Balls data structures greedy Statement D Educational Codeforces Round 31 {884} PROGRAMMING 55470 2300
790 Binary Matrix dsu Statement E Educational Codeforces Round 31 {884} PROGRAMMING 55470 2500
1292 Anti-Palindromize flows graphs greedy Statement F Educational Codeforces Round 31 {884} PROGRAMMING 55470 2500
11323 Book Reading implementation Statement A Educational Codeforces Round 31 {884} PROGRAMMING 55470 900
8440 Vlad and Cafes Statement B Технокубок 2018 - Отборочный Раунд 3 {886} PROGRAMMING Editorial Codeforces Round 445 (and Technocup 2018 — Elimination Round 3) 1000
11253 ACM ICPC brute force Statement A Технокубок 2018 - Отборочный Раунд 3 {886} PROGRAMMING Editorial Codeforces Round 445 (and Technocup 2018 — Elimination Round 3) 1100
5685 Petya and Catacombs dsu greedy implementation trees Statement C Технокубок 2018 - Отборочный Раунд 3 {886} PROGRAMMING Editorial Codeforces Round 445 (and Technocup 2018 — Elimination Round 3) 1300
1960 Restoration of string constructive algorithms graphs implementation Statement D Технокубок 2018 - Отборочный Раунд 3 {886} PROGRAMMING Editorial Codeforces Round 445 (and Technocup 2018 — Elimination Round 3) 2000
1222 Maximum Element combinatorics dp math Statement E Технокубок 2018 - Отборочный Раунд 3 {886} PROGRAMMING Editorial Codeforces Round 445 (and Technocup 2018 — Elimination Round 3) 2500
294 Symmetric Projections geometry Statement F Технокубок 2018 - Отборочный Раунд 3 {886} PROGRAMMING Editorial Codeforces Round 445 (and Technocup 2018 — Elimination Round 3) 2700
11982 Div. 64 implementation Statement A Codeforces Round 444 (Div. 2) {887} PROGRAMMING Codeforces Round #444 (Div. 2) Editorial 1100
5971 Cubes for Masha brute force implementation Statement B Codeforces Round 444 (Div. 2) {887} PROGRAMMING Codeforces Round #444 (Div. 2) Editorial 1300
2983 Solution for Cube brute force implementation Statement C Codeforces Round 444 (Div. 2) {887} PROGRAMMING Codeforces Round #444 (Div. 2) Editorial 1500
553 Ratings and Reality Shows data structures two pointers Statement D Codeforces Round 444 (Div. 2) {887} PROGRAMMING Codeforces Round #444 (Div. 2) Editorial 2500
183 Little Brother binary search geometry sortings Statement E Codeforces Round 444 (Div. 2) {887} PROGRAMMING Codeforces Round #444 (Div. 2) Editorial 2700
186 Row of Models greedy sortings Statement F Codeforces Round 444 (Div. 2) {887} PROGRAMMING Codeforces Round #444 (Div. 2) Editorial 2800
10785 Buggy Robot greedy Statement B Educational Codeforces Round 32 {888} PROGRAMMING Educational Codeforces Round 32 - Editorial 1000
9034 K-Dominant Character binary search implementation two pointers Statement C Educational Codeforces Round 32 {888} PROGRAMMING Educational Codeforces Round 32 - Editorial 1400
12055 Local Extrema brute force implementation Statement A Educational Codeforces Round 32 {888} PROGRAMMING Educational Codeforces Round 32 - Editorial 1600
10629 Almost Identity Permutations combinatorics dp math Statement D Educational Codeforces Round 32 {888} PROGRAMMING Educational Codeforces Round 32 - Editorial 1600
9360 Maximum Subsequence bitmasks divide and conquer meet-in-the-middle Statement E Educational Codeforces Round 32 {888} PROGRAMMING Educational Codeforces Round 32 - Editorial 1800
5939 Xor-MST bitmasks constructive algorithms data structures Statement G Educational Codeforces Round 32 {888} PROGRAMMING Educational Codeforces Round 32 - Editorial 2300
1107 Connecting Vertices dp graphs Statement F Educational Codeforces Round 32 {888} PROGRAMMING Educational Codeforces Round 32 - Editorial 2500
677 Mod Mod Mod binary search dp math Statement E Codeforces Round 445 (Div. 1, based on Technocup 2018 Elimination Round 3) {889} PROGRAMMING Editorial Codeforces Round 445 (and Technocup 2018 — Elimination Round 3) 3100
14629 Pride brute force dp greedy math number theory Statement A Codeforces Round 446 (Div. 1) {891} PROGRAMMING Codeforces Round #446 Editorial 1600
3254 Gluttony constructive algorithms greedy Statement B Codeforces Round 446 (Div. 1) {891} PROGRAMMING Codeforces Round #446 Editorial 2000
3042 Envy data structures dsu graphs Statement C Codeforces Round 446 (Div. 1) {891} PROGRAMMING Codeforces Round #446 Editorial 2500
1130 Lust combinatorics math matrices Statement E Codeforces Round 446 (Div. 1) {891} PROGRAMMING Codeforces Round #446 Editorial 2800
236 Sloth dfs and similar dp graph matchings trees Statement D Codeforces Round 446 (Div. 1) {891} PROGRAMMING Codeforces Round #446 Editorial 3000
10060 Wrath greedy implementation two pointers Statement B Codeforces Round 446 (Div. 2) {892} PROGRAMMING Codeforces Round #446 Editorial 1200
15077 Greed greedy implementation Statement A Codeforces Round 446 (Div. 2) {892} PROGRAMMING Codeforces Round #446 Editorial 900
12735 Beautiful Divisors brute force implementation Statement B Educational Codeforces Round 33 (Rated for Div. 2) {893} PROGRAMMING 55989 1000
28662 Rumor dfs and similar graphs greedy Statement C Educational Codeforces Round 33 (Rated for Div. 2) {893} PROGRAMMING 55989 1300
3340 Credit Card data structures dp greedy implementation Statement D Educational Codeforces Round 33 (Rated for Div. 2) {893} PROGRAMMING 55989 1800
4255 Counting Arrays combinatorics dp math number theory Statement E Educational Codeforces Round 33 (Rated for Div. 2) {893} PROGRAMMING 55989 2000
2522 Subtree Minimum Query data structures trees Statement F Educational Codeforces Round 33 (Rated for Div. 2) {893} PROGRAMMING 55989 2300
11081 Chess For Three implementation Statement A Educational Codeforces Round 33 (Rated for Div. 2) {893} PROGRAMMING 55989 900
4711 Ralph And His Magic Field combinatorics constructive algorithms math number theory Statement B Codeforces Round 447 (Div. 2) {894} PROGRAMMING Codeforces Round #447 (Div.2 Only) Editorial 1800
4637 Marco and GCD Sequence constructive algorithms math Statement C Codeforces Round 447 (Div. 2) {894} PROGRAMMING Codeforces Round #447 (Div.2 Only) Editorial 1800
1206 Ralph And His Tour in Binary Country brute force data structures trees Statement D Codeforces Round 447 (Div. 2) {894} PROGRAMMING Codeforces Round #447 (Div.2 Only) Editorial 2300
3172 Ralph and Mushrooms dp graphs Statement E Codeforces Round 447 (Div. 2) {894} PROGRAMMING Codeforces Round #447 (Div.2 Only) Editorial 2400
39616 QAQ brute force dp Statement A Codeforces Round 447 (Div. 2) {894} PROGRAMMING Codeforces Round #447 (Div.2 Only) Editorial 800
6931 Pizza Separation brute force implementation Statement A Codeforces Round 448 (Div. 2) {895} PROGRAMMING Codeforces Round #448(Div.2) Editorial 1200
3832 XK Segments binary search math sortings two pointers Statement B Codeforces Round 448 (Div. 2) {895} PROGRAMMING Codeforces Round #448(Div.2) Editorial 1700
7462 Square Subsets bitmasks combinatorics dp math Statement C Codeforces Round 448 (Div. 2) {895} PROGRAMMING Codeforces Round #448(Div.2) Editorial 2000
1246 String Mark combinatorics math strings Statement D Codeforces Round 448 (Div. 2) {895} PROGRAMMING Codeforces Round #448(Div.2) Editorial 2300
1273 Eyes Closed data structures probabilities Statement E Codeforces Round 448 (Div. 2) {895} PROGRAMMING Codeforces Round #448(Div.2) Editorial 2500
3822 Nephren gives a riddle binary search dfs and similar Statement A Codeforces Round 449 (Div. 1) {896} PROGRAMMING Codeforces Round #449 Editorial 1700
2305 Ithea Plays With Chtholly binary search constructive algorithms games greedy interactive Statement B Codeforces Round 449 (Div. 1) {896} PROGRAMMING Codeforces Round #449 Editorial 2000
4507 Willem, Chtholly and Seniorious data structures probabilities Statement C Codeforces Round 449 (Div. 1) {896} PROGRAMMING Codeforces Round #449 Editorial 2700
624 Nephren Runs a Cinema chinese remainder theorem combinatorics math number theory Statement D Codeforces Round 449 (Div. 1) {896} PROGRAMMING Codeforces Round #449 Editorial 2800
2514 Welcome home, Chtholly data structures dsu Statement E Codeforces Round 449 (Div. 1) {896} PROGRAMMING Codeforces Round #449 Editorial 3100
7558 Chtholly's request brute force Statement B Codeforces Round 449 (Div. 2) {897} PROGRAMMING Codeforces Round #449 Editorial 1300
15129 Scarborough Fair implementation Statement A Codeforces Round 449 (Div. 2) {897} PROGRAMMING Codeforces Round #449 Editorial 700
10714 Proper Nutrition brute force implementation number theory Statement B Codeforces Round 451 (Div. 2) {898} PROGRAMMING Codeforces Round #451 (Div.2) Editorial 1300
5825 Phone Numbers implementation strings Statement C Codeforces Round 451 (Div. 2) {898} PROGRAMMING Codeforces Round #451 (Div.2) Editorial 1400
4879 Squares and not squares constructive algorithms greedy Statement E Codeforces Round 451 (Div. 2) {898} PROGRAMMING Codeforces Round #451 (Div.2) Editorial 1600
4579 Alarm Clock greedy Statement D Codeforces Round 451 (Div. 2) {898} PROGRAMMING Codeforces Round #451 (Div.2) Editorial 1700
1463 Restoring the Expression brute force hashing math Statement F Codeforces Round 451 (Div. 2) {898} PROGRAMMING Codeforces Round #451 (Div.2) Editorial 2300
17618 Rounding implementation math Statement A Codeforces Round 451 (Div. 2) {898} PROGRAMMING Codeforces Round #451 (Div.2) Editorial 800
6458 Months and Years implementation Statement B Codeforces Round 452 (Div. 2) {899} PROGRAMMING Codeforces Round #452 (Div.2) Editorial 1300
9065 Dividing the numbers constructive algorithms graphs math Statement C Codeforces Round 452 (Div. 2) {899} PROGRAMMING Codeforces Round #452 (Div.2) Editorial 1300
3271 Shovel Sale constructive algorithms math Statement D Codeforces Round 452 (Div. 2) {899} PROGRAMMING Codeforces Round #452 (Div.2) Editorial 1800
3559 Segments Removal data structures dsu flows implementation two pointers Statement E Codeforces Round 452 (Div. 2) {899} PROGRAMMING Codeforces Round #452 (Div.2) Editorial 2100
2036 Letters Removing data structures strings Statement F Codeforces Round 452 (Div. 2) {899} PROGRAMMING Codeforces Round #452 (Div.2) Editorial 2200
11118 Splitting in Teams constructive algorithms greedy math Statement A Codeforces Round 452 (Div. 2) {899} PROGRAMMING Codeforces Round #452 (Div.2) Editorial 900
8401 Position in Fraction math number theory Statement B Codeforces Round 450 (Div. 2) {900} PROGRAMMING Codeforces Round #450(Div. 2). Editorial. 1300
5020 Remove Extra One brute force data structures math Statement C Codeforces Round 450 (Div. 2) {900} PROGRAMMING Codeforces Round #450(Div. 2). Editorial. 1700
3830 Unusual Sequences bitmasks combinatorics dp math number theory Statement D Codeforces Round 450 (Div. 2) {900} PROGRAMMING Codeforces Round #450(Div. 2). Editorial. 2100
1401 Maximum Questions data structures dp strings Statement E Codeforces Round 450 (Div. 2) {900} PROGRAMMING Codeforces Round #450(Div. 2). Editorial. 2300
14998 Find Extra One geometry implementation Statement A Codeforces Round 450 (Div. 2) {900} PROGRAMMING Codeforces Round #450(Div. 2). Editorial. 900
5393 Hashing Trees constructive algorithms trees Statement A Codeforces Round 453 (Div. 1) {901} PROGRAMMING Codeforces Round #453 (Div. 1 & Div. 2) Editorial 1500
1641 GCD of Polynomials constructive algorithms math Statement B Codeforces Round 453 (Div. 1) {901} PROGRAMMING Codeforces Round #453 (Div. 1 & Div. 2) Editorial 2100
1305 Bipartite Segments binary search data structures dfs and similar dsu graphs two pointers Statement C Codeforces Round 453 (Div. 1) {901} PROGRAMMING Codeforces Round #453 (Div. 1 & Div. 2) Editorial 2500
640 Weighting a Tree constructive algorithms dfs and similar graphs Statement D Codeforces Round 453 (Div. 1) {901} PROGRAMMING Codeforces Round #453 (Div. 1 & Div. 2) Editorial 2700
99 Cyclic Cipher fft math Statement E Codeforces Round 453 (Div. 1) {901} PROGRAMMING Codeforces Round #453 (Div. 1 & Div. 2) Editorial 3300
10300 Visiting a Friend greedy implementation Statement A Codeforces Round 453 (Div. 2) {902} PROGRAMMING Codeforces Round #453 (Div. 1 & Div. 2) Editorial 1200
12001 Coloring a Tree dfs and similar dsu greedy Statement B Codeforces Round 453 (Div. 2) {902} PROGRAMMING Codeforces Round #453 (Div. 1 & Div. 2) Editorial 1300
8141 The Modcrab greedy implementation Statement B Educational Codeforces Round 34 (Rated for Div. 2) {903} PROGRAMMING Educational Codeforces Round 34 Editorial 1200
22946 Boxes Packing greedy Statement C Educational Codeforces Round 34 (Rated for Div. 2) {903} PROGRAMMING Educational Codeforces Round 34 Editorial 1200
1582 Swapping Characters brute force hashing implementation strings Statement E Educational Codeforces Round 34 (Rated for Div. 2) {903} PROGRAMMING Educational Codeforces Round 34 Editorial 2200
4497 Almost Difference data structures math Statement D Educational Codeforces Round 34 (Rated for Div. 2) {903} PROGRAMMING Educational Codeforces Round 34 Editorial 2200
776 Clear The Matrix bitmasks dp Statement F Educational Codeforces Round 34 (Rated for Div. 2) {903} PROGRAMMING Educational Codeforces Round 34 Editorial 2400
720 Yet Another Maxflow Problem data structures flows graphs Statement G Educational Codeforces Round 34 (Rated for Div. 2) {903} PROGRAMMING Educational Codeforces Round 34 Editorial 2700
15550 Hungry Student Problem greedy implementation Statement A Educational Codeforces Round 34 (Rated for Div. 2) {903} PROGRAMMING Educational Codeforces Round 34 Editorial 900
4427 Shockers implementation strings Statement A Codeforces Round 454 (Div. 1, based on Technocup 2018 Elimination Round 4) {906} PROGRAMMING Editorial Codeforces Round 454 (and Technocup 2018 — Elimination Round 4) 1600
1325 Seating of Students brute force constructive algorithms math Statement B Codeforces Round 454 (Div. 1, based on Technocup 2018 Elimination Round 4) {906} PROGRAMMING Editorial Codeforces Round 454 (and Technocup 2018 — Elimination Round 4) 2300
1524 Party bitmasks brute force dp graphs Statement C Codeforces Round 454 (Div. 1, based on Technocup 2018 Elimination Round 4) {906} PROGRAMMING Editorial Codeforces Round 454 (and Technocup 2018 — Elimination Round 4) 2300
2722 Power Tower chinese remainder theorem math number theory Statement D Codeforces Round 454 (Div. 1, based on Technocup 2018 Elimination Round 4) {906} PROGRAMMING Editorial Codeforces Round 454 (and Technocup 2018 — Elimination Round 4) 2600
577 Reverses dp string suffix structures strings Statement E Codeforces Round 454 (Div. 1, based on Technocup 2018 Elimination Round 4) {906} PROGRAMMING Editorial Codeforces Round 454 (and Technocup 2018 — Elimination Round 4) 3200
4233 Tic-Tac-Toe implementation Statement B Codeforces Round 454 (Div. 2, based on Technocup 2018 Elimination Round 4) {907} PROGRAMMING Editorial Codeforces Round 454 (and Technocup 2018 — Elimination Round 4) 1400
5980 Masha and Bears brute force implementation Statement A Codeforces Round 454 (Div. 2, based on Technocup 2018 Elimination Round 4) {907} PROGRAMMING Editorial Codeforces Round 454 (and Technocup 2018 — Elimination Round 4) 1400
7913 New Year and Buggy Bot brute force implementation Statement B Good Bye 2017 {908} PROGRAMMING 1300
7231 New Year and Curling brute force geometry implementation math Statement C Good Bye 2017 {908} PROGRAMMING Good Bye 2017 Editorial 1500
2635 New Year and Arbitrary Arrangement dp math probabilities Statement D Good Bye 2017 {908} PROGRAMMING Good Bye 2017 Editorial 2200
1627 New Year and Rainbow Roads graphs greedy implementation Statement F Good Bye 2017 {908} PROGRAMMING Good Bye 2017 Editorial 2400
839 New Year and Entity Enumeration bitmasks combinatorics dp math Statement E Good Bye 2017 {908} PROGRAMMING Good Bye 2017 Editorial 2400
1676 New Year and Original Order dp math Statement G Good Bye 2017 {908} PROGRAMMING Good Bye 2017 Editorial 2700
492 New Year and Boolean Bridges Statement H Good Bye 2017 {908} PROGRAMMING Good Bye 2017 Editorial 3000
15864 New Year and Counting Cards brute force implementation Statement A Good Bye 2017 {908} PROGRAMMING Good Bye 2017 Editorial 800
10399 Generate Login brute force greedy sortings Statement A Codeforces Round 455 (Div. 2) {909} PROGRAMMING Codeforces Round #455 (Div. 2) Editorial 1100
6784 Segments constructive algorithms math Statement B Codeforces Round 455 (Div. 2) {909} PROGRAMMING Codeforces Round #455 (Div. 2) Editorial 1300
5513 Python Indentation dp Statement C Codeforces Round 455 (Div. 2) {909} PROGRAMMING Codeforces Round #455 (Div. 2) Editorial 1800
2479 Coprocessor dfs and similar dp graphs greedy Statement E Codeforces Round 455 (Div. 2) {909} PROGRAMMING Codeforces Round #455 (Div. 2) Editorial 2100
2110 Colorful Points data structures greedy implementation Statement D Codeforces Round 455 (Div. 2) {909} PROGRAMMING Codeforces Round #455 (Div. 2) Editorial 2100
637 AND-permutations constructive algorithms Statement F Codeforces Round 455 (Div. 2) {909} PROGRAMMING Codeforces Round #455 (Div. 2) Editorial 2600
14145 The Way to Home dfs and similar dp greedy implementation Statement A Testing Round 14 (Unrated) {910} PROGRAMMING 1100
1880 Door Frames greedy implementation Statement B Testing Round 14 (Unrated) {910} PROGRAMMING 1600
2170 Minimum Sum constructive algorithms greedy math Statement C Testing Round 14 (Unrated) {910} PROGRAMMING 1700
12350 Nearest Minimums implementation Statement A Educational Codeforces Round 35 (Rated for Div. 2) {911} PROGRAMMING T 1100
12853 Two Cakes binary search brute force implementation Statement B Educational Codeforces Round 35 (Rated for Div. 2) {911} PROGRAMMING T 1200
7347 Three Garlands brute force constructive algorithms Statement C Educational Codeforces Round 35 (Rated for Div. 2) {911} PROGRAMMING 1400
5142 Inversion Counting brute force math Statement D Educational Codeforces Round 35 (Rated for Div. 2) {911} PROGRAMMING T 1700
2863 Stack Sorting constructive algorithms data structures greedy implementation Statement E Educational Codeforces Round 35 (Rated for Div. 2) {911} PROGRAMMING 2000
2307 Tree Destruction constructive algorithms dfs and similar graphs greedy trees Statement F Educational Codeforces Round 35 (Rated for Div. 2) {911} PROGRAMMING T 2500
3864 Mass Change Queries data structures Statement G Educational Codeforces Round 35 (Rated for Div. 2) {911} PROGRAMMING T 2600
13997 New Year's Eve bitmasks constructive algorithms number theory Statement B Codeforces Round 456 (Div. 2) {912} PROGRAMMING Codeforces Round #456 (Div. 2) Editorial 1400
2158 Fishes data structures graphs greedy probabilities shortest paths Statement D Codeforces Round 456 (Div. 2) {912} PROGRAMMING Codeforces Round #456 (Div. 2) Editorial 2100
543 Perun, Ult! brute force greedy sortings Statement C Codeforces Round 456 (Div. 2) {912} PROGRAMMING Codeforces Round #456 (Div. 2) Editorial 2500
2074 Prime Gift binary search dfs and similar math meet-in-the-middle number theory two pointers Statement E Codeforces Round 456 (Div. 2) {912} PROGRAMMING Codeforces Round #456 (Div. 2) Editorial 2600
14421 Tricky Alchemy implementation Statement A Codeforces Round 456 (Div. 2) {912} PROGRAMMING Codeforces Round #456 (Div. 2) Editorial 900
24311 Modular Exponentiation implementation math Statement A Hello 2018 {913} PROGRAMMING Tutorial 1000
19663 Christmas Spruce implementation trees Statement B Hello 2018 {913} PROGRAMMING Tutorial 1200
8483 Party Lemonade bitmasks dp greedy Statement C Hello 2018 {913} PROGRAMMING Tutorial 1600
5150 Too Easy Problems binary search brute force data structures greedy sortings Statement D Hello 2018 {913} PROGRAMMING Tutorial 1800
888 Logical Expression bitmasks dp shortest paths Statement E Hello 2018 {913} PROGRAMMING Tutorial 2400
774 Strongly Connected Tournament dp graphs math probabilities Statement F Hello 2018 {913} PROGRAMMING Tutorial 2700
235 Power Substring math number theory Statement G Hello 2018 {913} PROGRAMMING Tutorial 3100
143 Don't Exceed math probabilities Statement H Hello 2018 {913} PROGRAMMING Tutorial 3400
15795 Perfect Squares brute force implementation math Statement A Codecraft-18 and Codeforces Round 458 (Div. 1 + Div. 2, combined) {914} PROGRAMMING Tutorial 1100
9094 Conan and Agasa play a Card Game games greedy implementation Statement B Codecraft-18 and Codeforces Round 458 (Div. 1 + Div. 2, combined) {914} PROGRAMMING Tutorial 1300
4258 Travelling Salesman and Special Numbers brute force combinatorics dp Statement C Codecraft-18 and Codeforces Round 458 (Div. 1 + Div. 2, combined) {914} PROGRAMMING Tutorial 1800
6436 Bash and a Tough Math Puzzle data structures number theory Statement D Codecraft-18 and Codeforces Round 458 (Div. 1 + Div. 2, combined) {914} PROGRAMMING Tutorial 1900
1946 Palindromes in a Tree bitmasks data structures divide and conquer trees Statement E Codecraft-18 and Codeforces Round 458 (Div. 1 + Div. 2, combined) {914} PROGRAMMING Tutorial 2400
1147 Sum the Fibonacci bitmasks divide and conquer dp fft math Statement G Codecraft-18 and Codeforces Round 458 (Div. 1 + Div. 2, combined) {914} PROGRAMMING Tutorial 2500
2172 Substrings in a String bitmasks brute force data structures string suffix structures strings Statement F Codecraft-18 and Codeforces Round 458 (Div. 1 + Div. 2, combined) {914} PROGRAMMING Tutorial 2900
279 Ember and Storm's Tree Game combinatorics dp games trees Statement H Codecraft-18 and Codeforces Round 458 (Div. 1 + Div. 2, combined) {914} PROGRAMMING Tutorial 2900
8414 Browser implementation Statement B Educational Codeforces Round 36 (Rated for Div. 2) {915} PROGRAMMING 57123 1300
7590 Permute Digits dp greedy Statement C Educational Codeforces Round 36 (Rated for Div. 2) {915} PROGRAMMING 57123 1700
4097 Almost Acyclic Graph dfs and similar graphs Statement D Educational Codeforces Round 36 (Rated for Div. 2) {915} PROGRAMMING 57123 2200
5632 Physical Education Lessons data structures implementation sortings Statement E Educational Codeforces Round 36 (Rated for Div. 2) {915} PROGRAMMING 57123 2300
3124 Imbalance Value of a Tree data structures dsu graphs trees Statement F Educational Codeforces Round 36 (Rated for Div. 2) {915} PROGRAMMING 57123 2500
1468 Coprime Arrays math number theory Statement G Educational Codeforces Round 36 (Rated for Div. 2) {915} PROGRAMMING 57123 2500
16067 Garden implementation Statement A Educational Codeforces Round 36 (Rated for Div. 2) {915} PROGRAMMING 57123 900
9589 Jamie and Alarm Snooze brute force implementation math Statement A Codeforces Round 457 (Div. 2) {916} PROGRAMMING Codeforces Round #457 (Div. 2) Editorial 1200
5573 Jamie and Interesting Graph constructive algorithms graphs shortest paths Statement C Codeforces Round 457 (Div. 2) {916} PROGRAMMING Codeforces Round #457 (Div. 2) Editorial 1600
2018 Jamie and Binary Sequence (changed after round) bitmasks greedy math Statement B Codeforces Round 457 (Div. 2) {916} PROGRAMMING Codeforces Round #457 (Div. 2) Editorial 1700
2133 Jamie and Tree data structures trees Statement E Codeforces Round 457 (Div. 2) {916} PROGRAMMING Codeforces Round #457 (Div. 2) Editorial 2600
568 Jamie and To-do List data structures interactive trees Statement D Codeforces Round 457 (Div. 2) {916} PROGRAMMING Codeforces Round #457 (Div. 2) Editorial 2600
4020 MADMAX dfs and similar dp games graphs Statement B Codeforces Round 459 (Div. 1) {917} PROGRAMMING Codeforces Round #459 Editorial 1800
3682 The Monster dp greedy implementation math Statement A Codeforces Round 459 (Div. 1) {917} PROGRAMMING Codeforces Round #459 Editorial 1900
1481 Stranger Trees dp math matrices trees Statement D Codeforces Round 459 (Div. 1) {917} PROGRAMMING Codeforces Round #459 Editorial 2600
451 Pollywog combinatorics dp matrices Statement C Codeforces Round 459 (Div. 1) {917} PROGRAMMING Codeforces Round #459 Editorial 2800
186 Upside Down data structures string suffix structures strings trees Statement E Codeforces Round 459 (Div. 1) {917} PROGRAMMING Codeforces Round #459 Editorial 3000
18300 Eleven brute force implementation Statement A Codeforces Round 459 (Div. 2) {918} PROGRAMMING E 800
20125 Radio Station implementation strings Statement B Codeforces Round 459 (Div. 2) {918} PROGRAMMING 900
31783 Perfect Number binary search brute force dp implementation number theory Statement B Codeforces Round 460 (Div. 2) {919} PROGRAMMING Codeforces Round #460 (Div. 2) Editorial 1100
9461 Seat Arrangements brute force implementation Statement C Codeforces Round 460 (Div. 2) {919} PROGRAMMING Codeforces Round #460 (Div. 2) Editorial 1300
12418 Substring dfs and similar dp graphs Statement D Codeforces Round 460 (Div. 2) {919} PROGRAMMING Codeforces Round #460 (Div. 2) Editorial 1700
2484 Congruence Equation chinese remainder theorem math number theory Statement E Codeforces Round 460 (Div. 2) {919} PROGRAMMING Codeforces Round #460 (Div. 2) Editorial 2100
390 A Game With Numbers games graphs shortest paths Statement F Codeforces Round 460 (Div. 2) {919} PROGRAMMING Codeforces Round #460 (Div. 2) Editorial 2800
16995 Supermarket brute force greedy implementation Statement A Codeforces Round 460 (Div. 2) {919} PROGRAMMING Codeforces Round #460 (Div. 2) Editorial 900
8229 Water The Garden implementation Statement A Educational Codeforces Round 37 (Rated for Div. 2) {920} PROGRAMMING 1100
8160 Tea Queue implementation Statement B Educational Codeforces Round 37 (Rated for Div. 2) {920} PROGRAMMING 1300
10048 Swap Adjacent Elements dfs and similar greedy math sortings two pointers Statement C Educational Codeforces Round 37 (Rated for Div. 2) {920} PROGRAMMING T 1500
8732 SUM and REPLACE brute force data structures dsu number theory Statement F Educational Codeforces Round 37 (Rated for Div. 2) {920} PROGRAMMING T 2000
7830 Connected Components? data structures dfs and similar dsu graphs Statement E Educational Codeforces Round 37 (Rated for Div. 2) {920} PROGRAMMING T 2100
2017 List Of Integers binary search bitmasks brute force combinatorics math number theory Statement G Educational Codeforces Round 37 (Rated for Div. 2) {920} PROGRAMMING T 2300
813 Tanks dp greedy implementation Statement D Educational Codeforces Round 37 (Rated for Div. 2) {920} PROGRAMMING 2600
0 Labyrinth-9 Statement 09 AIM Tech Mini Marathon 1 {921} PROGRAMMING 3200
0 Labyrinth-8 Statement 08 AIM Tech Mini Marathon 1 {921} PROGRAMMING 3200
0 Labyrinth-7 Statement 07 AIM Tech Mini Marathon 1 {921} PROGRAMMING 3200
0 Labyrinth-6 Statement 06 AIM Tech Mini Marathon 1 {921} PROGRAMMING 3200
0 Labyrinth-5 Statement 05 AIM Tech Mini Marathon 1 {921} PROGRAMMING 3200
0 Labyrinth-4 Statement 04 AIM Tech Mini Marathon 1 {921} PROGRAMMING 3200
0 Labyrinth-3 Statement 03 AIM Tech Mini Marathon 1 {921} PROGRAMMING 3200
0 Labyrinth-2 Statement 02 AIM Tech Mini Marathon 1 {921} PROGRAMMING 3200
0 Labyrinth-14 Statement 14 AIM Tech Mini Marathon 1 {921} PROGRAMMING 3200
0 Labyrinth-13 Statement 13 AIM Tech Mini Marathon 1 {921} PROGRAMMING 3200
0 Labyrinth-12 Statement 12 AIM Tech Mini Marathon 1 {921} PROGRAMMING 3200
0 Labyrinth-11 Statement 11 AIM Tech Mini Marathon 1 {921} PROGRAMMING 3200
0 Labyrinth-10 Statement 10 AIM Tech Mini Marathon 1 {921} PROGRAMMING 3200
0 Labyrinth-1 Statement 01 AIM Tech Mini Marathon 1 {921} PROGRAMMING 3200
9532 Magic Forest brute force Statement B Codeforces Round 461 (Div. 2) {922} PROGRAMMING 57605 1300
12624 Cloning Toys implementation Statement A Codeforces Round 461 (Div. 2) {922} PROGRAMMING 57605 1400
7718 Cave Painting brute force number theory Statement C Codeforces Round 461 (Div. 2) {922} PROGRAMMING 57605 1600
4847 Robot Vacuum Cleaner greedy sortings Statement D Codeforces Round 461 (Div. 2) {922} PROGRAMMING 57605 1800
2478 Birds dp Statement E Codeforces Round 461 (Div. 2) {922} PROGRAMMING 57605 2300
746 Divisibility constructive algorithms dp greedy number theory Statement F Codeforces Round 461 (Div. 2) {922} PROGRAMMING 57605 2500
7781 Producing Snow binary search data structures Statement B VK Cup 2018 - Round 1 {923} PROGRAMMING VK Cup 2018 Round 1 and CF Round #470 (div. 1 & 2) editorial 1600
5450 Primal Sport math number theory Statement A VK Cup 2018 - Round 1 {923} PROGRAMMING VK Cup 2018 Round 1 and CF Round #470 (div. 1 & 2) editorial 1700
4760 Perfect Security data structures greedy strings trees Statement C VK Cup 2018 - Round 1 {923} PROGRAMMING VK Cup 2018 Round 1 and CF Round #470 (div. 1 & 2) editorial 1900
1261 Picking Strings constructive algorithms implementation strings Statement D VK Cup 2018 - Round 1 {923} PROGRAMMING VK Cup 2018 Round 1 and CF Round #470 (div. 1 & 2) editorial 2500
139 Public Service constructive algorithms graphs trees Statement F VK Cup 2018 - Round 1 {923} PROGRAMMING VK Cup 2018 Round 1 and CF Round #470 (div. 1 & 2) editorial 2900
520 Perpetual Subtraction fft math matrices Statement E VK Cup 2018 - Round 1 {923} PROGRAMMING VK Cup 2018 Round 1 and CF Round #470 (div. 1 & 2) editorial 3100
5218 Mystical Mosaic greedy implementation Statement A VK Cup 2018 - Round 2 {924} PROGRAMMING VK Cup 2018 Round 2 and Codeforces Round #472 Editorial 1400
5629 Three-level Laser binary search greedy two pointers Statement B VK Cup 2018 - Round 2 {924} PROGRAMMING VK Cup 2018 Round 2 and Codeforces Round #472 Editorial 1600
4309 Riverside Curio data structures dp greedy Statement C VK Cup 2018 - Round 2 {924} PROGRAMMING VK Cup 2018 Round 2 and Codeforces Round #472 Editorial 1800
922 Contact ATC Statement D VK Cup 2018 - Round 2 {924} PROGRAMMING VK Cup 2018 Round 2 and Codeforces Round #472 Editorial 2500
570 Wardrobe Statement E VK Cup 2018 - Round 2 {924} PROGRAMMING VK Cup 2018 Round 2 and Codeforces Round #472 Editorial 2600
335 Minimal Subset Difference dp Statement F VK Cup 2018 - Round 2 {924} PROGRAMMING VK Cup 2018 Round 2 and Codeforces Round #472 Editorial 3400
3901 Stairs and Elevators binary search Statement A VK Cup 2018 - Round 3 {925} PROGRAMMING Разбор VK 2018 Round 3 + Codeforces Round #477 1700
2353 Resource Distribution binary search implementation sortings Statement B VK Cup 2018 - Round 3 {925} PROGRAMMING Разбор VK 2018 Round 3 + Codeforces Round #477 1800
1416 Big Secret constructive algorithms math Statement C VK Cup 2018 - Round 3 {925} PROGRAMMING Разбор VK 2018 Round 3 + Codeforces Round #477 2200
572 Aztec Catacombs constructive algorithms Statement D VK Cup 2018 - Round 3 {925} PROGRAMMING Разбор VK 2018 Round 3 + Codeforces Round #477 2700
543 May Holidays data structures trees Statement E VK Cup 2018 - Round 3 {925} PROGRAMMING Разбор VK 2018 Round 3 + Codeforces Round #477 2900
170 Parametric Circulation binary search flows Statement F VK Cup 2018 - Round 3 {925} PROGRAMMING Разбор VK 2018 Round 3 + Codeforces Round #477 3300
4188 2-3-numbers implementation math Statement A VK Cup 2018 - Wild-card Round 1 {926} PROGRAMMING Разбор VK Cup 2018 — Уайлд-кард Раунд 1 1300
2097 Is This a Zebra? Statement C VK Cup 2018 - Wild-card Round 1 {926} PROGRAMMING Разбор VK Cup 2018 — Уайлд-кард Раунд 1 1600
1745 Large Bouquets Statement G VK Cup 2018 - Wild-card Round 1 {926} PROGRAMMING Разбор VK Cup 2018 — Уайлд-кард Раунд 1 1700
1038 Choose Place Statement D VK Cup 2018 - Wild-card Round 1 {926} PROGRAMMING Разбор VK Cup 2018 — Уайлд-кард Раунд 1 1800