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571 Ice Cream *special greedy sortings Statement C Kotlin Heroes: Episode 2 {1211} PROGRAMMING Kotlin Heroes: Episode 2 Editorial 2000
254 Teams *special binary search greedy math Statement D Kotlin Heroes: Episode 2 {1211} PROGRAMMING Kotlin Heroes: Episode 2 Editorial 2200
3125 Unstable String Sort data structures dfs and similar dsu graphs greedy implementation strings Statement F Codeforces Round 582 (Div. 3) {1213} PROGRAMMING Codeforces Round #582 (Div. 3) Editorial 2400
548 Employment greedy sortings Statement F Codeforces Round 583 (Div. 1 + Div. 2, based on Olympiad of Metropolises) {1214} PROGRAMMING Tutorial 2700
12258 Yellow Cards greedy implementation math Statement A Codeforces Round 585 (Div. 2) {1215} PROGRAMMING Codeforces Round #585 Editorial 1000
6623 Ticket Game games greedy math Statement D Codeforces Round 585 (Div. 2) {1215} PROGRAMMING Codeforces Round #585 Editorial 1700
19885 Shooting greedy implementation sortings Statement B Codeforces Round 587 (Div. 3) {1216} PROGRAMMING Codeforces Round #587 (Div. 3) Editorial 1000
11923 Zmei Gorynich greedy math Statement B Educational Codeforces Round 72 (Rated for Div. 2) {1217} PROGRAMMING Educational Codeforces Round 72 Editorial 1600
2126 Sum Queries? data structures greedy implementation math Statement E Educational Codeforces Round 72 (Rated for Div. 2) {1217} PROGRAMMING Educational Codeforces Round 72 Editorial 2300
10850 Substring Game in the Lesson games greedy strings Statement C Codeforces Round 586 (Div. 1 + Div. 2) {1220} PROGRAMMING Codeforces Round #586 Editorial 1300
3063 Tourism dfs and similar dp dsu graphs greedy trees Statement E Codeforces Round 586 (Div. 1 + Div. 2) {1220} PROGRAMMING Codeforces Round #586 Editorial 2200
18316 2048 Game brute force greedy math Statement A Educational Codeforces Round 73 (Rated for Div. 2) {1221} PROGRAMMING Разбор Educational Codeforces Round 73 1000
4539 Sequence Sorting dp greedy two pointers Statement D Technocup 2020 - Elimination Round 1 {1223} PROGRAMMING Сodeforces Round 591 (and Technocup 2020 — Elimination Round 1) Editorial 2000
1052 Tree Factory constructive algorithms greedy trees Statement F Technocup 2020 - Elimination Round 2 {1225} PROGRAMMING 70898 2500
666 To Make 1 bitmasks constructive algorithms dp greedy number theory Statement G Technocup 2020 - Elimination Round 2 {1225} PROGRAMMING 70898 3000
19740 Ania and Minimizing greedy implementation Statement B Codeforces Round 588 (Div. 2) {1230} PROGRAMMING 70008 1000
952 Middle-Out constructive algorithms greedy strings Statement E Dasha Code Championship - Novosibirsk Finals Round (only for onsite-finalists) {1231} PROGRAMMING Dasha Code Championship Finals and Mirror Round 588 Editorial 2000
10590 Labs constructive algorithms greedy implementation Statement C Codeforces Round 593 (Div. 2) {1236} PROGRAMMING 70654 1300
1772 Alice and the Doll brute force data structures greedy implementation Statement D Codeforces Round 593 (Div. 2) {1236} PROGRAMMING 70654 2100
17335 Stones brute force greedy math Statement A Codeforces Round 593 (Div. 2) {1236} PROGRAMMING 70654 800
4568 Balanced Removals (Harder) binary search constructive algorithms divide and conquer greedy implementation sortings Statement C2 Codeforces Global Round 5 {1237} PROGRAMMING T 1900
15798 Kill `Em All greedy sortings Statement B Educational Codeforces Round 74 (Rated for Div. 2) {1238} PROGRAMMING Educational Codeforces Round 74 Editorial 1300
7890 Standard Free2play dp greedy math Statement C Educational Codeforces Round 74 (Rated for Div. 2) {1238} PROGRAMMING Educational Codeforces Round 74 Editorial 1600
536 Adilbek and the Watering System data structures greedy sortings Statement G Educational Codeforces Round 74 (Rated for Div. 2) {1238} PROGRAMMING Educational Codeforces Round 74 Editorial 2700
1831 Queue in the Train data structures greedy implementation Statement C Codeforces Round 594 (Div. 1) {1239} PROGRAMMING Editorial of Codeforces Round #594 (on the problems of Moscow Team Olympiad) 2300
6829 Minimizing Difference binary search constructive algorithms greedy sortings ternary search two pointers Statement E Codeforces Round 592 (Div. 2) {1244} PROGRAMMING Codeforces Round #592 (Div. 2) Tutorial 2000
1580 Running in Pairs constructive algorithms greedy math Statement G Codeforces Round 592 (Div. 2) {1244} PROGRAMMING Codeforces Round #592 (Div. 2) Tutorial 2500
10181 Shichikuji and Power Grid dsu graphs greedy shortest paths trees Statement D Codeforces Round 597 (Div. 2) {1245} PROGRAMMING Codeforces Round #597 (Div. 2) Editorial 1900
2570 The World Is Just a Programming Task (Easy Version) brute force dp greedy implementation Statement D1 Codeforces Round 594 (Div. 2) {1248} PROGRAMMING Editorial of Codeforces Round #594 (on the problems of Moscow Team Olympiad) 1900
18143 Grow The Tree greedy math sortings Statement B Codeforces Round 594 (Div. 2) {1248} PROGRAMMING Editorial of Codeforces Round #594 (on the problems of Moscow Team Olympiad) 900
16663 Good Numbers (easy version) brute force greedy implementation Statement C1 Codeforces Round 595 (Div. 3) {1249} PROGRAMMING Codeforces Round #595 (Div. 3) Editorial 1300
13654 Good Numbers (hard version) binary search greedy math meet-in-the-middle Statement C2 Codeforces Round 595 (Div. 3) {1249} PROGRAMMING Codeforces Round #595 (Div. 3) Editorial 1500
5929 Too Many Segments (hard version) data structures greedy sortings Statement D2 Codeforces Round 595 (Div. 3) {1249} PROGRAMMING Codeforces Round #595 (Div. 3) Editorial 2000
4725 Divide The Students binary search greedy math Statement L 2019-2020 ICPC, NERC, Southern and Volga Russian Regional Contest (Online Mirror, ICPC Rules, Teams Preferred) {1250} PROGRAMMING 1700
2822 The Feast and the Bus brute force constructive algorithms greedy math Statement B 2019-2020 ICPC, NERC, Southern and Volga Russian Regional Contest (Online Mirror, ICPC Rules, Teams Preferred) {1250} PROGRAMMING 1900
809 Discarding Game dp greedy two pointers Statement G 2019-2020 ICPC, NERC, Southern and Volga Russian Regional Contest (Online Mirror, ICPC Rules, Teams Preferred) {1250} PROGRAMMING 2400
240 Show Must Go On binary search brute force greedy shortest paths Statement I 2019-2020 ICPC, NERC, Southern and Volga Russian Regional Contest (Online Mirror, ICPC Rules, Teams Preferred) {1250} PROGRAMMING 3100
11692 Binary Palindromes greedy strings Statement B Educational Codeforces Round 75 (Rated for Div. 2) {1251} PROGRAMMING 70860 1400
14703 Minimize The Integer greedy two pointers Statement C Educational Codeforces Round 75 (Rated for Div. 2) {1251} PROGRAMMING 70860 1500
6691 Salary Changing binary search greedy sortings Statement D Educational Codeforces Round 75 (Rated for Div. 2) {1251} PROGRAMMING 70860 1800
2955 Twin Buildings greedy implementation Statement H 2019-2020 ICPC, Asia Jakarta Regional Contest (Online Mirror, ICPC Rules, Teams Preferred) {1252} PROGRAMMING T 1900
1390 Songwriter greedy two pointers Statement E 2019-2020 ICPC, Asia Jakarta Regional Contest (Online Mirror, ICPC Rules, Teams Preferred) {1252} PROGRAMMING T 2300
11760 Silly Mistake greedy implementation Statement B Codeforces Round 600 (Div. 2) {1253} PROGRAMMING Editorial 1400
15620 Sweets Eating dp greedy math sortings Statement C Codeforces Round 600 (Div. 2) {1253} PROGRAMMING Editorial 1500
10621 Harmonious Graph constructive algorithms dfs and similar dsu graphs greedy sortings Statement D Codeforces Round 600 (Div. 2) {1253} PROGRAMMING Editorial 1700
3180 Antenna Coverage data structures dp greedy sortings Statement E Codeforces Round 600 (Div. 2) {1253} PROGRAMMING Editorial 2200
5773 Feeding Chicken constructive algorithms greedy implementation Statement A Codeforces Round 601 (Div. 1) {1254} PROGRAMMING Codeforces Round #601 Editorial 1900
5067 Send Boxes to Alice (Easy Version) constructive algorithms greedy math number theory ternary search two pointers Statement B1 Codeforces Round 601 (Div. 1) {1254} PROGRAMMING Codeforces Round #601 Editorial 2000
3563 Send Boxes to Alice (Hard Version) constructive algorithms greedy math number theory ternary search two pointers Statement B2 Codeforces Round 601 (Div. 1) {1254} PROGRAMMING Codeforces Round #601 Editorial 2100
4779 Yet Another Division Into Teams dp greedy sortings Statement E Codeforces Round 598 (Div. 3) {1256} PROGRAMMING Codeforces Round #598 (Div. 3) Editorial 2200
17385 Dominated Subarray greedy implementation sortings strings two pointers Statement C Educational Codeforces Round 76 (Rated for Div. 2) {1257} PROGRAMMING Educational Codeforces Round 76 Editorial 1200
8266 Yet Another Monster Killing Problem binary search data structures dp greedy sortings two pointers Statement D Educational Codeforces Round 76 (Rated for Div. 2) {1257} PROGRAMMING Educational Codeforces Round 76 Editorial 1700
801 Divisor Set divide and conquer fft greedy math number theory Statement G Educational Codeforces Round 76 (Rated for Div. 2) {1257} PROGRAMMING Educational Codeforces Round 76 Editorial 2700
21733 Two Rival Students greedy math Statement A Educational Codeforces Round 76 (Rated for Div. 2) {1257} PROGRAMMING Educational Codeforces Round 76 Editorial 700
8933 Infinite Fence greedy math number theory Statement C Educational Codeforces Round 77 (Rated for Div. 2) {1260} PROGRAMMING Educational Codeforces Round 77 Editorial 1700
4284 A Game with Traps binary search dp greedy sortings Statement D Educational Codeforces Round 77 (Rated for Div. 2) {1260} PROGRAMMING Educational Codeforces Round 77 Editorial 1900
11849 PIN Codes greedy implementation Statement B Codeforces Round 603 (Div. 2) {1263} PROGRAMMING Разбор Codeforces Round #603 (Div. 2) 1400
10488 Beautiful Regional Contest greedy implementation Statement A Codeforces Round 604 (Div. 1) {1264} PROGRAMMING 71995 1500
10111 Diverse Matrix constructive algorithms greedy math number theory Statement C Codeforces Global Round 6 {1266} PROGRAMMING Codeforces Global Round 6 Editorial 1400
3956 Decreasing Debts constructive algorithms data structures graphs greedy implementation math two pointers Statement D Codeforces Global Round 6 {1266} PROGRAMMING Codeforces Global Round 6 Editorial 2000
2457 Spaceship Solitaire data structures greedy implementation Statement E Codeforces Global Round 6 {1266} PROGRAMMING Codeforces Global Round 6 Editorial 2100
3128 Just Arrange the Icons greedy implementation math Statement J 2019-2020 ICPC, NERC, Northern Eurasia Finals (Unrated, Online Mirror, ICPC Rules, Teams Preferred) {1267} PROGRAMMING nerc-2019-tutorial.pdf 1900
9196 Long Beautiful Integer constructive algorithms greedy implementation strings Statement A Codeforces Round 609 (Div. 1) {1268} PROGRAMMING Codeforces Round #609 — Editorial 1700
6564 Domino for Young dp greedy math Statement B Codeforces Round 609 (Div. 1) {1268} PROGRAMMING Codeforces Round #609 — Editorial 2000
17521 Interesting Subarray constructive algorithms greedy math Statement B Good Bye 2019 {1270} PROGRAMMING Разбор Goodbye 2019 1300
17894 Card Game games greedy math Statement A Good Bye 2019 {1270} PROGRAMMING Разбор Goodbye 2019 700
11205 Shawarma Tent brute force geometry greedy implementation Statement C Codeforces Round 608 (Div. 2) {1271} PROGRAMMING 72247 1300
12151 Blocks greedy math Statement B Codeforces Round 608 (Div. 2) {1271} PROGRAMMING 72247 1300
3476 Portals data structures dp greedy implementation sortings Statement D Codeforces Round 608 (Div. 2) {1271} PROGRAMMING 72247 2100
15734 Suits brute force greedy math Statement A Codeforces Round 608 (Div. 2) {1271} PROGRAMMING 72247 900
14749 Snow Walking Robot constructive algorithms greedy implementation Statement B Codeforces Round 605 (Div. 3) {1272} PROGRAMMING Codeforces Round #605 (Div. 3) Editorial 1200
22238 Three Friends brute force greedy math sortings Statement A Codeforces Round 605 (Div. 3) {1272} PROGRAMMING Codeforces Round #605 (Div. 3) Editorial 900
1800 Beautiful Rectangle brute force combinatorics constructive algorithms data structures greedy math Statement C Codeforces Round 606 (Div. 1, based on Technocup 2020 Elimination Round 4) {1276} PROGRAMMING Technocup 2020 — Elimination Round 4 + Codeforces Round 606: Editorial 2300
17419 Make Them Odd greedy number theory Statement B Codeforces Round 606 (Div. 2, based on Technocup 2020 Elimination Round 4) {1277} PROGRAMMING Technocup 2020 — Elimination Round 4 + Codeforces Round 606: Editorial 1200
14291 A and B greedy math Statement B Educational Codeforces Round 78 (Rated for Div. 2) {1278} PROGRAMMING Educational Codeforces Round 78 Editorial 1500
8825 Berry Jam data structures dp greedy implementation Statement C Educational Codeforces Round 78 (Rated for Div. 2) {1278} PROGRAMMING Educational Codeforces Round 78 Editorial 1600
3104 Jeremy Bearimy dfs and similar graphs greedy trees Statement C Codeforces Round 607 (Div. 1) {1280} PROGRAMMING Codeforces Round #607 Editorial 2000
1299 Miss Punyverse dp greedy trees Statement D Codeforces Round 607 (Div. 1) {1280} PROGRAMMING Codeforces Round #607 Editorial 2700
12247 K for the Price of One (Easy Version) dp greedy sortings Statement B1 Codeforces Round 610 (Div. 2) {1282} PROGRAMMING 72461 1400
11176 K for the Price of One (Hard Version) dp greedy sortings Statement B2 Codeforces Round 610 (Div. 2) {1282} PROGRAMMING 72461 1600
4702 Petya and Exam greedy sortings two pointers Statement C Codeforces Round 610 (Div. 2) {1282} PROGRAMMING 72461 1800
10058 Christmas Trees graphs greedy shortest paths Statement D Codeforces Round 611 (Div. 3) {1283} PROGRAMMING Codeforces Round #611 (Div. 3) Editorial 1800
2161 DIY Garland constructive algorithms greedy trees Statement F Codeforces Round 611 (Div. 3) {1283} PROGRAMMING Codeforces Round #611 (Div. 3) Editorial 2400
32672 Just Eat It! dp greedy implementation Statement B Codeforces Round 613 (Div. 2) {1285} PROGRAMMING Codeforces Round #613 (Div. 2) Editorial 1300
8783 Dr. Evil Underscores bitmasks brute force dfs and similar divide and conquer dp greedy strings trees Statement D Codeforces Round 613 (Div. 2) {1285} PROGRAMMING Codeforces Round #613 (Div. 2) Editorial 1800
9806 Garland dp greedy sortings Statement A Codeforces Round 612 (Div. 1) {1286} PROGRAMMING Codeforces Round #612 - Editorial 1700
5722 Numbers on Tree constructive algorithms data structures dfs and similar graphs greedy trees Statement B Codeforces Round 612 (Div. 1) {1286} PROGRAMMING Codeforces Round #612 - Editorial 2000
23059 Angry Students greedy implementation Statement A Codeforces Round 612 (Div. 2) {1287} PROGRAMMING Codeforces Round #612 - Editorial 800
20869 Even But Not Even greedy math strings Statement A Codeforces Round 616 (Div. 2) {1291} PROGRAMMING 500.0 Codeforces Round #616 Editorial 1000
15533 Array Sharpening greedy implementation Statement B Codeforces Round 616 (Div. 2) {1291} PROGRAMMING 1000.0 Codeforces Round #616 Editorial 1300
6825 Aroma's Search brute force constructive algorithms geometry greedy implementation Statement B Codeforces Round 614 (Div. 1) {1292} PROGRAMMING 750.0 Codeforces Round #614 Editorial 1800
2399 Xenon's Attack on the Gangs combinatorics dfs and similar dp greedy trees Statement C Codeforces Round 614 (Div. 1) {1292} PROGRAMMING 1250.0 Codeforces Round #614 Editorial 2300
1060 Chaotic V. dp graphs greedy math number theory trees Statement D Codeforces Round 614 (Div. 1) {1292} PROGRAMMING 1750.0 Codeforces Round #614 Editorial 2700
479 Rin and The Unknown Flower constructive algorithms greedy interactive math Statement E Codeforces Round 614 (Div. 1) {1292} PROGRAMMING 2250.0 Codeforces Round #614 Editorial 3500
22431 JOE is on TV! combinatorics greedy math Statement B Codeforces Round 614 (Div. 2) {1293} PROGRAMMING 750.0 Codeforces Round #614 Editorial 1000
48780 Product of Three Numbers greedy math number theory Statement C Codeforces Round 615 (Div. 3) {1294} PROGRAMMING Codeforces Round #615 (Div. 3) Editorial 1300
12827 MEX maximizing data structures greedy implementation math Statement D Codeforces Round 615 (Div. 3) {1294} PROGRAMMING Codeforces Round #615 (Div. 3) Editorial 1600
5272 Obtain a Permutation greedy implementation math Statement E Codeforces Round 615 (Div. 3) {1294} PROGRAMMING Codeforces Round #615 (Div. 3) Editorial 2000
7230 Three Paths on a Tree dfs and similar dp greedy trees Statement F Codeforces Round 615 (Div. 3) {1294} PROGRAMMING Codeforces Round #615 (Div. 3) Editorial 2100
14029 Obtain The String dp greedy strings Statement C Educational Codeforces Round 81 (Rated for Div. 2) {1295} PROGRAMMING Educational Codeforces Round 81 Editorial 1600
15203 Fight with Monsters greedy sortings Statement D Codeforces Round 617 (Div. 3) {1296} PROGRAMMING Codeforces Round #617 (Div. 3) Editorial 1500
8308 String Coloring (easy version) constructive algorithms dp graphs greedy sortings Statement E1 Codeforces Round 617 (Div. 3) {1296} PROGRAMMING Codeforces Round #617 (Div. 3) Editorial 1800
3151 Berland Beauty constructive algorithms dfs and similar greedy sortings trees Statement F Codeforces Round 617 (Div. 3) {1296} PROGRAMMING Codeforces Round #617 (Div. 3) Editorial 2400
274 Bonus Distribution *special binary search greedy sortings Statement D Kotlin Heroes: Episode 3 {1297} PROGRAMMING Kotlin Heroes: Episode 3 Editorial
127 Movie Fan *special data structures greedy implementation sortings Statement F Kotlin Heroes: Episode 3 {1297} PROGRAMMING Kotlin Heroes: Episode 3 Editorial
12691 Anu Has a Function brute force greedy math Statement A Codeforces Round 618 (Div. 1) {1299} PROGRAMMING 500.0 Codeforces Round #618 Editorial 1500
26360 Assigning to Classes greedy implementation sortings Statement B Codeforces Round 618 (Div. 2) {1300} PROGRAMMING 750.0 Codeforces Round #618 Editorial 1000
15167 Motarack's Birthday binary search greedy ternary search Statement B Codeforces Round 619 (Div. 2) {1301} PROGRAMMING 1000.0 Codeforces Round #619 (Div. 2) Editorial 1500
9970 Ayoub's function binary search combinatorics greedy math strings Statement C Codeforces Round 619 (Div. 2) {1301} PROGRAMMING 1250.0 Codeforces Round #619 (Div. 2) Editorial 1700
13062 Perfect Keyboard dfs and similar greedy implementation Statement C Educational Codeforces Round 82 (Rated for Div. 2) {1303} PROGRAMMING Educational Codeforces Round 82 1500
3359 Erase Subsequences brute force dp greedy strings Statement E Educational Codeforces Round 82 (Rated for Div. 2) {1303} PROGRAMMING Educational Codeforces Round 82 2200
18950 Longest Palindrome brute force constructive algorithms greedy implementation strings Statement B Codeforces Round 620 (Div. 2) {1304} PROGRAMMING 1000.0 Codeforces Round #620 (Div. 2) Editorial 1100
18008 Air Conditioner dp greedy implementation sortings two pointers Statement C Codeforces Round 620 (Div. 2) {1304} PROGRAMMING 1500.0 Codeforces Round #620 (Div. 2) Editorial 1500
6812 Shortest and Longest LIS constructive algorithms graphs greedy two pointers Statement D Codeforces Round 620 (Div. 2) {1304} PROGRAMMING 1750.0 Codeforces Round #620 (Div. 2) Editorial 1800
12581 Kuroni and Simple Strings constructive algorithms greedy strings two pointers Statement B Ozon Tech Challenge 2020 (Div.1 + Div.2, Rated, T-shirts + prizes!) {1305} PROGRAMMING 1000.0 Ozon Tech Challenge 2020 Editorial 1300
3301 Kuroni and the Score Distribution constructive algorithms greedy implementation math Statement E Ozon Tech Challenge 2020 (Div.1 + Div.2, Rated, T-shirts + prizes!) {1305} PROGRAMMING 2000.0 Ozon Tech Challenge 2020 Editorial 2100
14749 Kuroni and the Gifts brute force constructive algorithms greedy sortings Statement A Ozon Tech Challenge 2020 (Div.1 + Div.2, Rated, T-shirts + prizes!) {1305} PROGRAMMING 500.0 Ozon Tech Challenge 2020 Editorial 800
13932 Cow and Friend geometry greedy math Statement B Codeforces Round 621 (Div. 1 + Div. 2) {1307} PROGRAMMING 1000.0 Codeforces Round #621 (Div. 1 + Div. 2) Editorial 1300
7475 Cow and Fields binary search data structures dfs and similar graphs greedy shortest paths sortings Statement D Codeforces Round 621 (Div. 1 + Div. 2) {1307} PROGRAMMING 2000.0 Codeforces Round #621 (Div. 1 + Div. 2) Editorial 1900
1473 Cow and Treats binary search combinatorics dp greedy implementation math Statement E Codeforces Round 621 (Div. 1 + Div. 2) {1307} PROGRAMMING 2500.0 Codeforces Round #621 (Div. 1 + Div. 2) Editorial 2400
15709 Cow and Haybales greedy implementation Statement A Codeforces Round 621 (Div. 1 + Div. 2) {1307} PROGRAMMING 500.0 Codeforces Round #621 (Div. 1 + Div. 2) Editorial 800
5739 Recommendations data structures greedy sortings Statement A VK Cup 2019-2020 - Elimination Round (Engine) {1310} PROGRAMMING 500.0 VK Cup 2019-2020 - Elimination Round (Engine) and Codeforces Round #623 1700
46765 Add Odd or Subtract Even greedy implementation math Statement A Codeforces Round 624 (Div. 3) {1311} PROGRAMMING 74224 700
18595 Adding Powers bitmasks greedy implementation math number theory ternary search Statement C Educational Codeforces Round 83 (Rated for Div. 2) {1312} PROGRAMMING 74640
7067 Different Rules binary search constructive algorithms greedy implementation math Statement B Codeforces Round 622 (Div. 2) {1313} PROGRAMMING 1000.0 Editorial 1700
16376 Fast Food Restaurant brute force greedy implementation Statement A Codeforces Round 622 (Div. 2) {1313} PROGRAMMING 500.0 Editorial 900
9712 Homecoming binary search dp greedy strings Statement B Codeforces Round 623 (Div. 2, based on VK Cup 2019-2020 - Elimination Round, Engine) {1315} PROGRAMMING 1000.0 VK Cup 2019-2020 - Elimination Round (Engine) and Codeforces Round #623 1300
5806 Team Building bitmasks dp greedy sortings Statement E CodeCraft-20 (Div. 2) {1316} PROGRAMMING 2250.0 Codecraft-20 (Div.2) Editorial 2300
21037 Even Subset Sum Problem brute force dp greedy implementation Statement A Codeforces Round 626 (Div. 2, based on Moscow Open Olympiad in Informatics) {1323} PROGRAMMING 500.0 Codeforces Round #626 Editorial
12374 Count Subrectangles greedy implementation Statement B Codeforces Round 626 (Div. 2, based on Moscow Open Olympiad in Informatics) {1323} PROGRAMMING 1000.0 Codeforces Round #626 Editorial
30891 Frog Jumps binary search data structures greedy implementation Statement C Codeforces Round 627 (Div. 3) {1324} PROGRAMMING Codeforces Round #627 (Div. 3) Editorial
17993 Ehab and Path-etic MEXs constructive algorithms dfs and similar greedy trees Statement C Codeforces Round 628 (Div. 2) {1325} PROGRAMMING 1250.0 74235 1500
13870 Ehab the Xorcist bitmasks constructive algorithms greedy number theory Statement D Codeforces Round 628 (Div. 2) {1325} PROGRAMMING 1750.0 74235 1700
47239 EhAb AnD gCd constructive algorithms greedy number theory Statement A Codeforces Round 628 (Div. 2) {1325} PROGRAMMING 500.0 74235 800
39145 CopyCopyCopyCopyCopy greedy implementation Statement B Codeforces Round 628 (Div. 2) {1325} PROGRAMMING 750.0 74235 800
16561 Permutation Partitions combinatorics greedy math Statement C Codeforces Global Round 7 {1326} PROGRAMMING 1000.0 74961 1300
12181 Prefix-Suffix Palindrome (Hard version) greedy hashing string suffix structures strings Statement D2 Codeforces Global Round 7 {1326} PROGRAMMING 1000.0 74961 1800
33461 Ternary XOR greedy implementation Statement C Codeforces Round 629 (Div. 3) {1328} PROGRAMMING 75246 1200
14712 Carousel greedy math Statement D Codeforces Round 629 (Div. 3) {1328} PROGRAMMING 75246 1800
9805 Dreamoon Likes Coloring constructive algorithms greedy implementation math Statement A Codeforces Round 631 (Div. 1) - Thanks, Denis aramis Shitov! {1329} PROGRAMMING 500.0 Codeforces Round #631 Editorial 1800
1838 Drazil Likes Heap constructive algorithms data structures greedy implementation sortings Statement C Codeforces Round 631 (Div. 1) - Thanks, Denis aramis Shitov! {1329} PROGRAMMING 1500.0 Codeforces Round #631 Editorial 2400
19913 Exercising Walk greedy implementation math Statement A Codeforces Round 630 (Div. 2) {1332} PROGRAMMING 500.0 Codeforces Round #630 Editorial 1200
19348 Composite Coloring brute force constructive algorithms greedy math number theory Statement B Codeforces Round 630 (Div. 2) {1332} PROGRAMMING 1000.0 Codeforces Round #630 Editorial 1500
21804 K-Complete Word dfs and similar dsu greedy implementation strings Statement C Codeforces Round 630 (Div. 2) {1332} PROGRAMMING 1250.0 Codeforces Round #630 Editorial 1500
4175 Challenges in school №41 brute force constructive algorithms games graphs greedy implementation sortings Statement D Codeforces Round 632 (Div. 2) {1333} PROGRAMMING 1750.0 Codeforces Round #632 (Div. 2) editorial
22308 Kind Anton greedy implementation Statement B Codeforces Round 632 (Div. 2) {1333} PROGRAMMING 750.0 Codeforces Round #632 (Div. 2) editorial
4651 Kate and imperfection greedy implementation math number theory sortings two pointers Statement F Codeforces Round 632 (Div. 2) {1333} PROGRAMMING 2500.0 Codeforces Round #632 (Div. 2) editorial
18172 Circle of Monsters brute force constructive algorithms greedy math Statement C Educational Codeforces Round 85 (Rated for Div. 2) {1334} PROGRAMMING Educational Codeforces Round 85 Editorial
3233 Divisor Paths combinatorics graphs greedy math number theory Statement E Educational Codeforces Round 85 (Rated for Div. 2) {1334} PROGRAMMING Educational Codeforces Round 85 Editorial
7791 Minimum Euler Cycle constructive algorithms graphs greedy implementation Statement D Educational Codeforces Round 85 (Rated for Div. 2) {1334} PROGRAMMING Educational Codeforces Round 85 Editorial
27861 Middle Class greedy sortings Statement B Educational Codeforces Round 85 (Rated for Div. 2) {1334} PROGRAMMING Educational Codeforces Round 85 Editorial
39829 Two Teams Composing binary search greedy implementation sortings Statement C Codeforces Round 634 (Div. 3) {1335} PROGRAMMING 75993 1100
2463 Robots on a Grid data structures dfs and similar dsu graphs greedy matrices Statement F Codeforces Round 634 (Div. 3) {1335} PROGRAMMING 75993 2600
25649 Linova and Kingdom dfs and similar dp greedy sortings trees Statement A Codeforces Round 635 (Div. 1) {1336} PROGRAMMING 500.0 Codeforces Round #635 Editorial 1700
12335 Xenia and Colorful Gems binary search greedy math sortings two pointers Statement B Codeforces Round 635 (Div. 1) {1336} PROGRAMMING 750.0 Codeforces Round #635 Editorial 1800
37206 Kana and Dragon Quest game greedy implementation math Statement B Codeforces Round 635 (Div. 2) {1337} PROGRAMMING 1000.0 Codeforces Round #635 Editorial 1000
3494 Perfect Triples bitmasks brute force constructive algorithms divide and conquer greedy implementation math Statement C Codeforces Round 633 (Div. 1) {1338} PROGRAMMING 1500.0 Editorial
9715 Edge Weight Assignment bitmasks constructive algorithms greedy math trees Statement B Codeforces Round 633 (Div. 1) {1338} PROGRAMMING 1000.0 Editorial
31776 Powered Addition greedy math Statement A Codeforces Round 633 (Div. 1) {1338} PROGRAMMING 500.0 Editorial
13723 Nastya and Strange Generator brute force data structures greedy implementation Statement A Codeforces Round 637 (Div. 1) - Thanks, Ivan Belonogov! {1340} PROGRAMMING 500.0 Codeforces Round #637 Editorial
21300 Nastya and Door greedy implementation Statement B Codeforces Round 637 (Div. 2) - Thanks, Ivan Belonogov! {1341} PROGRAMMING 1000.0 Codeforces Round #637 Editorial
47225 Road To Zero greedy math Statement A Educational Codeforces Round 86 (Rated for Div. 2) {1342} PROGRAMMING 76633 1100
6395 Multiple Testcases binary search constructive algorithms data structures greedy sortings two pointers Statement D Educational Codeforces Round 86 (Rated for Div. 2) {1342} PROGRAMMING 76633 1900
45237 Alternating Subsequence dp greedy two pointers Statement C Codeforces Round 636 (Div. 3) {1343} PROGRAMMING 76352 1100
13642 Constant Palindrome Sum brute force data structures greedy two pointers Statement D Codeforces Round 636 (Div. 3) {1343} PROGRAMMING 76352 1800
5860 Weights Distributing brute force graphs greedy shortest paths sortings Statement E Codeforces Round 636 (Div. 3) {1343} PROGRAMMING 76352 2400
1428 Restore the Permutation by Sorted Segments brute force constructive algorithms data structures greedy implementation Statement F Codeforces Round 636 (Div. 3) {1343} PROGRAMMING 76352 2800
1346 Résumé Review binary search greedy math Statement D Codeforces Round 639 (Div. 1) {1344} PROGRAMMING 1750.0 Codeforces Round #639 Editorial 2700
683 Spring Cleaning *special greedy sortings Statement C Kotlin Heroes: Episode 4 {1346} PROGRAMMING Kotlin Heroes: Episode 4 — Editorial 1600
256 Dune II: Battle For Arrakis *special data structures greedy math Statement F Kotlin Heroes: Episode 4 {1346} PROGRAMMING Kotlin Heroes: Episode 4 — Editorial 2000
15628 Phoenix and Distribution constructive algorithms greedy strings Statement C Codeforces Round 638 (Div. 2) {1348} PROGRAMMING 1500.0 Codeforces Round #638 (Div. 2) Editorial 1600
9400 Phoenix and Science binary search bitmasks constructive algorithms greedy math Statement D Codeforces Round 638 (Div. 2) {1348} PROGRAMMING 2000.0 Codeforces Round #638 (Div. 2) Editorial 1900
43382 Phoenix and Balance greedy math Statement A Codeforces Round 638 (Div. 2) {1348} PROGRAMMING 500.0 Codeforces Round #638 (Div. 2) Editorial 800
9034 Orac and Medians constructive algorithms greedy math Statement B Codeforces Round 641 (Div. 1) {1349} PROGRAMMING 1250.0 Codeforces Round #641 Editorial 2000
45087 Most Unstable Array constructive algorithms greedy math Statement A Codeforces Round 642 (Div. 3) {1353} PROGRAMMING Codeforces Round #642 (Div. 3) Editorial 800
59447 Two Arrays And Swaps greedy sortings Statement B Codeforces Round 642 (Div. 3) {1353} PROGRAMMING Codeforces Round #642 (Div. 3) Editorial 800
1537 Summoning Minions constructive algorithms dp flows graph matchings greedy sortings Statement F Educational Codeforces Round 87 (Rated for Div. 2) {1354} PROGRAMMING 77593 2500
27703 Young Explorers dp greedy sortings Statement B Codeforces Round 643 (Div. 2) {1355} PROGRAMMING 750.0 Codeforces Round #643 (Div. 2) Editorial 1200
6006 Restorer Distance binary search greedy math sortings ternary search Statement E Codeforces Round 643 (Div. 2) {1355} PROGRAMMING 2000.0 Codeforces Round #643 (Div. 2) Editorial 2100
26035 Maria Breaks the Self-isolation greedy sortings Statement B Codeforces Round 645 (Div. 2) {1358} PROGRAMMING 750.0 Codeforces Round #645 (Div. 2) Editorial 1000
8813 The Best Vacation binary search brute force greedy implementation two pointers Statement D Codeforces Round 645 (Div. 2) {1358} PROGRAMMING 1500.0 Codeforces Round #645 (Div. 2) Editorial 1900
2483 Are You Fired? constructive algorithms data structures dp greedy implementation Statement E Codeforces Round 645 (Div. 2) {1358} PROGRAMMING 2000.0 Codeforces Round #645 (Div. 2) Editorial 2400
563 Tasty Cookie binary search constructive algorithms greedy implementation Statement F Codeforces Round 645 (Div. 2) {1358} PROGRAMMING 2500.0 Codeforces Round #645 (Div. 2) Editorial 2700
29598 New Theatre Square brute force dp greedy implementation two pointers Statement B Educational Codeforces Round 88 (Rated for Div. 2) {1359} PROGRAMMING Educational Codeforces Round 88 Editorial 1000
32033 Berland Poker brute force greedy math Statement A Educational Codeforces Round 88 (Rated for Div. 2) {1359} PROGRAMMING Educational Codeforces Round 88 Editorial 1000
37339 Similar Pairs constructive algorithms graph matchings greedy sortings Statement C Codeforces Round 644 (Div. 3) {1360} PROGRAMMING Codeforces Round #644 (Div. 3) Editorial 1100
8408 A/B Matrix constructive algorithms flows greedy math number theory Statement G Codeforces Round 644 (Div. 3) {1360} PROGRAMMING Codeforces Round #644 (Div. 3) Editorial 1900
57928 Minimal Square greedy math Statement A Codeforces Round 644 (Div. 3) {1360} PROGRAMMING Codeforces Round #644 (Div. 3) Editorial 800
54650 Honest Coach greedy sortings Statement B Codeforces Round 644 (Div. 3) {1360} PROGRAMMING Codeforces Round #644 (Div. 3) Editorial 800
8892 Johnny and Contribution constructive algorithms graphs greedy sortings Statement A Codeforces Round 647 (Div. 1) - Thanks, Algo Muse! {1361} PROGRAMMING 500.0 Codeforces Round #647 Editorial 1700
3892 Johnny and Grandmaster greedy implementation math sortings Statement B Codeforces Round 647 (Div. 1) - Thanks, Algo Muse! {1361} PROGRAMMING 1250.0 Codeforces Round #647 Editorial 1900
445 Johnny and James greedy implementation math trees Statement D Codeforces Round 647 (Div. 1) - Thanks, Algo Muse! {1361} PROGRAMMING 2500.0 Codeforces Round #647 Editorial 2900
24898 Johnny and Another Rating Drop bitmasks greedy math Statement C Codeforces Round 647 (Div. 2) - Thanks, Algo Muse! {1362} PROGRAMMING 1500.0 Codeforces Round #647 Editorial 1400
7608 Tree Shuffling dfs and similar dp dsu greedy trees Statement E Codeforces Round 646 (Div. 2) {1363} PROGRAMMING 2250.0 78202 2000
27569 Most socially-distanced subsequence greedy two pointers Statement B Codeforces Round 649 (Div. 2) {1364} PROGRAMMING 1000.0 Codeforces round #649 editorial 1300
25218 Matrix Game games greedy implementation Statement A Codeforces Round 648 (Div. 2) {1365} PROGRAMMING 500.0 Editorial — Codeforces Round #648 1100
25265 Rotation Matching constructive algorithms data structures greedy implementation Statement C Codeforces Round 648 (Div. 2) {1365} PROGRAMMING 1250.0 Editorial — Codeforces Round #648 1400
21432 Solve The Maze constructive algorithms dfs and similar dsu graphs greedy implementation shortest paths Statement D Codeforces Round 648 (Div. 2) {1365} PROGRAMMING 1500.0 Editorial — Codeforces Round #648 1700
4685 Two Arrays binary search brute force combinatorics dp greedy implementation two pointers Statement E Educational Codeforces Round 89 (Rated for Div. 2) {1366} PROGRAMMING Educational Codeforces Round 89 Editorial
33358 Shovels and Swords binary search greedy math Statement A Educational Codeforces Round 89 (Rated for Div. 2) {1366} PROGRAMMING Educational Codeforces Round 89 Editorial
14326 Palindromic Paths dsu greedy math Statement C Educational Codeforces Round 89 (Rated for Div. 2) {1366} PROGRAMMING Educational Codeforces Round 89 Editorial
5936 Necklace Assembly binary search brute force dp greedy number theory Statement E Codeforces Round 650 (Div. 3) {1367} PROGRAMMING Codeforces Round #650 (Div. 3) Editorial
2020 Flying Sort (Hard Version) binary search dp greedy two pointers Statement F2 Codeforces Round 650 (Div. 3) {1367} PROGRAMMING Codeforces Round #650 (Div. 3) Editorial
8921 Task On The Board constructive algorithms greedy implementation sortings Statement D Codeforces Round 650 (Div. 3) {1367} PROGRAMMING Codeforces Round #650 (Div. 3) Editorial
25575 Social Distance constructive algorithms greedy math Statement C Codeforces Round 650 (Div. 3) {1367} PROGRAMMING Codeforces Round #650 (Div. 3) Editorial
3716 Flying Sort (Easy Version) dp greedy two pointers Statement F1 Codeforces Round 650 (Div. 3) {1367} PROGRAMMING Codeforces Round #650 (Div. 3) Editorial
65832 Even Array greedy math Statement B Codeforces Round 650 (Div. 3) {1367} PROGRAMMING Codeforces Round #650 (Div. 3) Editorial
14229 AND, OR and square sum bitmasks greedy math Statement D Codeforces Global Round 8 {1368} PROGRAMMING 1750.0 Codeforces Global Round 8: editorial
21771 Codeforces Subsequences brute force constructive algorithms greedy math strings Statement B Codeforces Global Round 8 {1368} PROGRAMMING 1000.0 Codeforces Global Round 8: editorial
47230 C+= brute force greedy math Statement A Codeforces Global Round 8 {1368} PROGRAMMING 500.0 Codeforces Global Round 8: editorial
1134 Lamps on a Circle games greedy implementation interactive math Statement F Codeforces Global Round 8 {1368} PROGRAMMING 3000.0 Codeforces Global Round 8: editorial
25739 AccurateLee greedy implementation strings Statement B Codeforces Round 652 (Div. 2) {1369} PROGRAMMING 1000.0 Codeforces Round #652 (Div. 2) Editorial 1200
21102 RationalLee greedy math sortings Statement C Codeforces Round 652 (Div. 2) {1369} PROGRAMMING 1500.0 Codeforces Round #652 (Div. 2) Editorial 1400
9285 TediousLee dp graphs greedy math matrices trees Statement D Codeforces Round 652 (Div. 2) {1369} PROGRAMMING 2000.0 Codeforces Round #652 (Div. 2) Editorial 1900
2498 DeadLee constructive algorithms data structures graphs greedy implementation sortings Statement E Codeforces Round 652 (Div. 2) {1369} PROGRAMMING 2500.0 Codeforces Round #652 (Div. 2) Editorial 2400
5289 Binary Subsequence Rotation binary search data structures dp greedy implementation Statement E Codeforces Round 651 (Div. 2) {1370} PROGRAMMING 2500.0 Editorial — Codeforces Round #651
11233 Odd-Even Subsequence binary search dp greedy implementation sortings Statement D Codeforces Round 651 (Div. 2) {1370} PROGRAMMING 2000.0 Editorial — Codeforces Round #651
67017 Maximum GCD brute force greedy implementation number theory Statement A Codeforces Round 651 (Div. 2) {1370} PROGRAMMING 500.0 Editorial — Codeforces Round #651
21514 A Cookie for You constructive algorithms greedy implementation math Statement C Codeforces Round 654 (Div. 2) {1371} PROGRAMMING 1250.0 Codeforces Round #654 (Div. 2) Editorial
13770 Grid-00100 constructive algorithms greedy math Statement D Codeforces Round 654 (Div. 2) {1371} PROGRAMMING 1500.0 Codeforces Round #654 (Div. 2) Editorial
38143 Omkar and Last Class of Math constructive algorithms greedy math number theory Statement B Codeforces Round 655 (Div. 2) {1372} PROGRAMMING 1000.0 Codeforces Round #655 Editorial 1300
19537 Pluses and Minuses binary search dp greedy implementation math Statement C Educational Codeforces Round 90 (Rated for Div. 2) {1373} PROGRAMMING Educational Codeforces Round 90 Editorial
2994 Sum of Digits brute force constructive algorithms dp greedy math number theory Statement E Educational Codeforces Round 90 (Rated for Div. 2) {1373} PROGRAMMING Educational Codeforces Round 90 Editorial
29918 Donut Shops greedy implementation math Statement A Educational Codeforces Round 90 (Rated for Div. 2) {1373} PROGRAMMING Educational Codeforces Round 90 Editorial
1137 Reading Books (hard version) binary search data structures greedy sortings ternary search two pointers Statement E2 Codeforces Round 653 (Div. 3) {1374} PROGRAMMING 79517
15127 Reading Books (easy version) data structures greedy implementation sortings Statement E1 Codeforces Round 653 (Div. 3) {1374} PROGRAMMING 79517
67230 Move Brackets greedy strings Statement C Codeforces Round 653 (Div. 3) {1374} PROGRAMMING 79517
3517 Inversion SwapSort constructive algorithms greedy sortings Statement E Codeforces Global Round 9 {1375} PROGRAMMING 2000.0 79731
2295 Tree Modification dfs and similar greedy trees Statement G Codeforces Global Round 9 {1375} PROGRAMMING 2250.0 79731
6184 Choosing flowers binary search data structures greedy math sortings two pointers Statement C Codeforces Round 657 (Div. 2) {1379} PROGRAMMING 1250.0 Codeforces Round #657 Editorial 2000
5089 Berserk And Fireball brute force greedy math Statement D Educational Codeforces Round 91 (Rated for Div. 2) {1380} PROGRAMMING Educational Codeforces Round 91 Editorial
23003 Create The Teams dp greedy sortings Statement C Educational Codeforces Round 91 (Rated for Div. 2) {1380} PROGRAMMING Educational Codeforces Round 91 Editorial
1028 Circular Dungeon greedy math probabilities Statement G Educational Codeforces Round 91 (Rated for Div. 2) {1380} PROGRAMMING Educational Codeforces Round 91 Editorial
1750 Mastermind constructive algorithms greedy implementation sortings Statement C Codeforces Round 658 (Div. 1) {1381} PROGRAMMING 2000.0 Codeforces Round #658 Editorial 2500
835 The Majestic Brown Tree Snake dfs and similar dp greedy trees two pointers Statement D Codeforces Round 658 (Div. 1) {1381} PROGRAMMING 2500.0 Codeforces Round #658 Editorial 3000
5595 GameGame bitmasks constructive algorithms dp games greedy math Statement B Codeforces Round 659 (Div. 1) {1383} PROGRAMMING 1000.0 Codeforces Round #659 Editorial
869 Rearrange brute force constructive algorithms graphs greedy sortings Statement D Codeforces Round 659 (Div. 1) {1383} PROGRAMMING 1750.0 Codeforces Round #659 Editorial
11389 String Transformation 1 dsu graphs greedy sortings strings trees Statement A Codeforces Round 659 (Div. 1) {1383} PROGRAMMING 1000.0 Codeforces Round #659 Editorial
19837 Common Prefixes constructive algorithms greedy strings Statement A Codeforces Round 659 (Div. 2) {1384} PROGRAMMING 500.0 Codeforces Round #659 Editorial
2958 Removing Leaves data structures dfs and similar divide and conquer greedy implementation trees Statement F Codeforces Round 656 (Div. 3) {1385} PROGRAMMING Codeforces Round #656 (Div. 3) Editorial 2300
22891 Captain Flint and a Long Voyage greedy math Statement B Codeforces Round 660 (Div. 2) {1388} PROGRAMMING 1000.0 Codeforces Round #660 Editorial 1000
10504 Uncle Bogdan and Country Happiness dfs and similar dp greedy math trees Statement C Codeforces Round 660 (Div. 2) {1388} PROGRAMMING 1500.0 Codeforces Round #660 Editorial 1800
6988 Captain Flint and Treasure data structures dfs and similar dp graphs greedy implementation trees Statement D Codeforces Round 660 (Div. 2) {1388} PROGRAMMING 2000.0 Codeforces Round #660 Editorial 2000
4593 Segment Intersections binary search brute force greedy implementation math Statement D Educational Codeforces Round 92 (Rated for Div. 2) {1389} PROGRAMMING 80809
20799 Good String brute force dp greedy implementation two pointers Statement C Educational Codeforces Round 92 (Rated for Div. 2) {1389} PROGRAMMING 80809
51597 LCM Problem constructive algorithms greedy math number theory Statement A Educational Codeforces Round 92 (Rated for Div. 2) {1389} PROGRAMMING 80809
1302 Bicolored Segments data structures dp graph matchings greedy sortings Statement F Educational Codeforces Round 92 (Rated for Div. 2) {1389} PROGRAMMING 80809
561 Directing Edges dfs and similar dp graphs greedy trees Statement G Educational Codeforces Round 92 (Rated for Div. 2) {1389} PROGRAMMING 80809
21091 Array Walk dp greedy math Statement B Educational Codeforces Round 92 (Rated for Div. 2) {1389} PROGRAMMING 80809
30156 Fix You brute force greedy implementation Statement B Codeforces Round 663 (Div. 2) {1391} PROGRAMMING 750.0 Codeforces Round #663 (Div. 2) Editorial