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2371 Nastia Plays with a Tree constructive algorithms data structures dfs and similar dp flows graphs greedy implementation trees Statement D Codeforces Round 720 (Div. 2) {1521} PROGRAMMING 2250.0 90477
9213 Compression and Expansion brute force data structures greedy implementation trees Statement C Deltix Round, Spring 2021 (open for everyone, rated, Div. 1 + Div. 2) {1523} PROGRAMMING 1500.0 Deltix Round, Spring 2021. Editorial 1600
14082 Game of Life implementation Statement A Deltix Round, Spring 2021 (open for everyone, rated, Div. 1 + Div. 2) {1523} PROGRAMMING 500.0 Deltix Round, Spring 2021. Editorial 800
4862 Robot Collisions data structures greedy implementation sortings Statement C Educational Codeforces Round 109 (Rated for Div. 2) {1525} PROGRAMMING 90793
15230 Sequence Pair Weight implementation math Statement C Codeforces Round 721 (Div. 2) {1527} PROGRAMMING 1500.0 Tutorial 1600
3363 Minimax constructive algorithms greedy implementation strings Statement E Codeforces Round 733 (Div. 1 + Div. 2, based on VK Cup 2021 - Elimination (Engine)) {1530} PROGRAMMING 2000.0 Codeforces Round #733 Editorial (all problems)
16326 Putting Plates constructive algorithms implementation Statement B Codeforces Round 733 (Div. 1 + Div. 2, based on VK Cup 2021 - Elimination (Engine)) {1530} PROGRAMMING 750.0 Codeforces Round #733 Editorial (all problems)
642 Uniform String *special implementation Statement C Kotlin Heroes: Practice 7 {1532} PROGRAMMING
484 Sweets *special data structures implementation Statement C Kotlin Heroes: Episode 7 {1533} PROGRAMMING Kotlin Heroes 7 — Editorial
816 Nearest Point Function *special implementation Statement B Kotlin Heroes: Episode 7 {1533} PROGRAMMING Kotlin Heroes 7 — Editorial
1130 Travel to Bertown *special implementation math Statement A Kotlin Heroes: Episode 7 {1533} PROGRAMMING Kotlin Heroes 7 — Editorial
13320 Colour the Flag brute force implementation Statement A Codeforces LATOKEN Round 1 (Div. 1 + Div. 2) {1534} PROGRAMMING 500.0 Codeforces LATOKEN Round 1 (Div. 1 + Div. 2) Editorial
12999 Histogram Ugliness greedy implementation math Statement B Codeforces LATOKEN Round 1 (Div. 1 + Div. 2) {1534} PROGRAMMING 1000.0 Codeforces LATOKEN Round 1 (Div. 1 + Div. 2) Editorial
57964 Fair Playoff brute force implementation Statement A Educational Codeforces Round 110 (Rated for Div. 2) {1535} PROGRAMMING 91481
8554 Playoff Tournament data structures implementation trees Statement D Educational Codeforces Round 110 (Rated for Div. 2) {1535} PROGRAMMING 91481
17897 Unstable String dp greedy implementation strings two pointers Statement C Educational Codeforces Round 110 (Rated for Div. 2) {1535} PROGRAMMING 91481
5131 Omkar and Medians data structures greedy implementation Statement D Codeforces Round 724 (Div. 2) {1536} PROGRAMMING 2000.0 Codeforces Round #724 — Editorial 2000
30650 Challenging Cliffs greedy implementation math Statement C Codeforces Round 726 (Div. 2) {1537} PROGRAMMING 1000.0 Codeforces Round #726 (Div.2) Editorial
3264 Funny Substrings brute force data structures hashing implementation strings Statement E Codeforces Round 725 (Div. 3) {1538} PROGRAMMING Codeforces Round #725 (Div. 3) Editorial
1089 Game with Cards binary search constructive algorithms data structures dp implementation Statement E Codeforces Round 727 (Div. 2) {1539} PROGRAMMING 2000.0 tutorial 2500
26925 Love Song dp implementation strings Statement B Codeforces Round 727 (Div. 2) {1539} PROGRAMMING 750.0 tutorial 800
30839 Pretty Permutations constructive algorithms greedy implementation Statement A Codeforces Round 728 (Div. 2) {1541} PROGRAMMING 500.0 Tutorial
2999 Priority Queue combinatorics dp implementation math Statement D Codeforces Round 729 (Div. 2) {1542} PROGRAMMING 2000.0
5654 Need for Pink Slips brute force dfs and similar implementation math probabilities Statement C Codeforces Round 730 (Div. 2) {1543} PROGRAMMING 1500.0 Codeforces Round #730 (Div. 2) Editorial
16575 Air Conditioners dfs and similar dp implementation shortest paths sortings two pointers Statement E Codeforces Round 731 (Div. 3) {1547} PROGRAMMING Codeforces Round #731 (Div. 3) Editorial
28038 Alphabetical Strings greedy implementation strings Statement B Codeforces Round 731 (Div. 3) {1547} PROGRAMMING Codeforces Round #731 (Div. 3) Editorial
32449 Shortest Path with Obstacle implementation math Statement A Codeforces Round 731 (Div. 3) {1547} PROGRAMMING Codeforces Round #731 (Div. 3) Editorial
27188 Gregor and the Pawn Game flows graphs greedy implementation Statement B Codeforces Round 736 (Div. 2) {1549} PROGRAMMING 750.0 Codeforces Round 736 Editorial
2088 Excellent Arrays brute force combinatorics constructive algorithms implementation math Statement D Educational Codeforces Round 111 (Rated for Div. 2) {1550} PROGRAMMING Educational Codeforces Round 111 Editorial
10919 Manhattan Subarrays brute force geometry greedy implementation Statement C Educational Codeforces Round 111 (Rated for Div. 2) {1550} PROGRAMMING Educational Codeforces Round 111 Editorial
3027 Domino (hard version) constructive algorithms implementation math Statement D2 Codeforces Round 734 (Div. 3) {1551} PROGRAMMING Editorial for Codeforces Round #734 (Div.3)
9866 Mikasa binary search bitmasks greedy implementation Statement C Codeforces Round 735 (Div. 2) {1554} PROGRAMMING 1750.0 Editorial of Codeforces Round #735 (Div. 2) 1800
24390 Coin Rows brute force constructive algorithms dp implementation Statement C Educational Codeforces Round 112 (Rated for Div. 2) {1555} PROGRAMMING 93389 1300
13333 Take Your Places! data structures implementation Statement B Deltix Round, Summer 2021 (open for everyone, rated, Div. 1 + Div. 2) {1556} PROGRAMMING 1000.0 94384 1300
6255 Compressed Bracket Sequence brute force implementation Statement C Deltix Round, Summer 2021 (open for everyone, rated, Div. 1 + Div. 2) {1556} PROGRAMMING 1500.0 94384 1800
8919 Polycarp and String Transformation binary search implementation sortings strings Statement E Codeforces Round 739 (Div. 3) {1560} PROGRAMMING 94009 1800
74883 Dislike of Threes implementation Statement A Codeforces Round 739 (Div. 3) {1560} PROGRAMMING 94009 800
28108 Infinity Table implementation math Statement C Codeforces Round 739 (Div. 3) {1560} PROGRAMMING 94009 800
17237 Simply Strange Sort brute force implementation sortings Statement A Codeforces Round 740 (Div. 2, based on VK Cup 2021 - Final (Engine)) {1561} PROGRAMMING 500.0 Codeforces Round #740 Editorial 800
20646 Scenes From a Memory brute force implementation math number theory Statement B Codeforces Round 741 (Div. 2) {1562} PROGRAMMING 1000.0 Editorial of Codeforces Round 741 (Div. 2)
422 Four Vertices constructive algorithms data structures graphs greedy implementation shortest paths Statement G Codeforces Global Round 16 {1566} PROGRAMMING 3000.0 Codeforces Global Round 16 Editorial
8362 Seating Arrangements (hard version) data structures greedy implementation sortings two pointers Statement D2 Codeforces Global Round 16 {1566} PROGRAMMING 1000.0 Codeforces Global Round 16 Editorial
886 One-Four Overload 2-sat constructive algorithms dfs and similar geometry graphs implementation Statement F Codeforces Round 742 (Div. 2) {1567} PROGRAMMING 2750.0 Codeforces Round #742 Editorial
4921 Expression Evaluation Error constructive algorithms greedy implementation math Statement D Codeforces Round 742 (Div. 2) {1567} PROGRAMMING 1750.0 Codeforces Round #742 Editorial
4201 Non-Decreasing Dilemma data structures implementation Statement E Codeforces Round 742 (Div. 2) {1567} PROGRAMMING 2250.0 Codeforces Round #742 Editorial
31847 Domino Disaster implementation strings Statement A Codeforces Round 742 (Div. 2) {1567} PROGRAMMING 500.0 Codeforces Round #742 Editorial
897 Playoff Restoration bitmasks brute force hashing implementation meet-in-the-middle Statement E Educational Codeforces Round 113 (Rated for Div. 2) {1569} PROGRAMMING 94721
4620 Inconvenient Pairs data structures implementation sortings two pointers Statement D Educational Codeforces Round 113 (Rated for Div. 2) {1569} PROGRAMMING 94721
26643 Balanced Substring implementation Statement A Educational Codeforces Round 113 (Rated for Div. 2) {1569} PROGRAMMING 94721
294 Shooting *special greedy implementation Statement C Kotlin Heroes: Practice 8 {1570} PROGRAMMING
273 Reachable Numbers *special implementation Statement D Kotlin Heroes: Practice 8 {1570} PROGRAMMING
372 Sweepstake *special brute force constructive algorithms implementation math Statement D Kotlin Heroes: Episode 8 {1571} PROGRAMMING Kotlin Heroes 8 Editorial
401 Rhyme *special implementation Statement C Kotlin Heroes: Episode 8 {1571} PROGRAMMING Kotlin Heroes 8 Editorial
10581 Book binary search data structures dp graphs implementation Statement A Codeforces Round 743 (Div. 1) {1572} PROGRAMMING 500.0 Tutorial 1800
1087 Coloring combinatorics constructive algorithms implementation Statement E Educational Codeforces Round 114 (Rated for Div. 2) {1574} PROGRAMMING 95188
4890 The Strongest Build data structures dfs and similar graphs greedy hashing implementation shortest paths Statement D Educational Codeforces Round 114 (Rated for Div. 2) {1574} PROGRAMMING 95188
4325 Jeopardy of Dropped Balls brute force dsu implementation Statement J COMPFEST 13 - Finals Online Mirror (Unrated, ICPC Rules, Teams Preferred) {1575} PROGRAMMING COMPFEST 13 — Editorial
815 Knitting Batik implementation math Statement K COMPFEST 13 - Finals Online Mirror (Unrated, ICPC Rules, Teams Preferred) {1575} PROGRAMMING COMPFEST 13 — Editorial
428 Kingdom of Islands graphs implementation Statement K ICPC WF Moscow Invitational Contest - Online Mirror (Unrated, ICPC Rules, Teams Preferred) {1578} PROGRAMMING Tutorial (PDF)
4186 Easy Scheduling implementation math Statement E ICPC WF Moscow Invitational Contest - Online Mirror (Unrated, ICPC Rules, Teams Preferred) {1578} PROGRAMMING Tutorial (PDF)
2186 Higher Order Functions implementation strings Statement H ICPC WF Moscow Invitational Contest - Online Mirror (Unrated, ICPC Rules, Teams Preferred) {1578} PROGRAMMING Tutorial (PDF)
5403 Array Stabilization (AND version) binary search brute force graphs greedy implementation math number theory shortest paths Statement F Codeforces Round 744 (Div. 3) {1579} PROGRAMMING Codeforces Round #744 (Div. 3) Editorial
11724 Ticks brute force dp greedy implementation Statement C Codeforces Round 744 (Div. 3) {1579} PROGRAMMING Codeforces Round #744 (Div. 3) Editorial
19003 Shifting Sort implementation sortings Statement B Codeforces Round 744 (Div. 3) {1579} PROGRAMMING Codeforces Round #744 (Div. 3) Editorial
3942 Portal brute force dp greedy implementation Statement A Codeforces Round 745 (Div. 1) {1580} PROGRAMMING 500.0 Codeforces Round #745 Editorial 1700
2285 Train Maintenance brute force data structures implementation Statement C Codeforces Round 745 (Div. 1) {1580} PROGRAMMING 1750.0 Codeforces Round #745 Editorial 2200
19031 Life of a Flower implementation Statement A Technocup 2022 - Elimination Round 3 {1585} PROGRAMMING 500.0 Codeforces Round #759 (Div. 2, based on Technocup 2022 Elimination Round 3) Editorial
10692 Life of a Flower implementation Statement A Codeforces Round 759 (Div. 2, based on Technocup 2022 Elimination Round 3) {1591} PROGRAMMING 500.0 Codeforces Round #759 (Div. 2, based on Technocup 2022 Elimination Round 3) Editorial
15065 Gardener and Tree dfs and similar greedy implementation trees Statement E Codeforces Round 748 (Div. 3) {1593} PROGRAMMING Editorial for Codeforces Round #748 (Div.3)
2706 Red-Black Number dp implementation math Statement F Codeforces Round 748 (Div. 3) {1593} PROGRAMMING Editorial for Codeforces Round #748 (Div.3)
1682 Rubik's Cube Coloring (hard version) brute force dp implementation math trees Statement E2 Codeforces Round 747 (Div. 2) {1594} PROGRAMMING 1500.0 95525 2300
17022 Groups brute force implementation Statement B Educational Codeforces Round 115 (Rated for Div. 2) {1598} PROGRAMMING 95890
25858 Computer Game dfs and similar dp implementation Statement A Educational Codeforces Round 115 (Rated for Div. 2) {1598} PROGRAMMING 95890
14801 Divine Array constructive algorithms implementation Statement B Codeforces Round 751 (Div. 2) {1602} PROGRAMMING 1000.0 95865 1100
19862 Two Subsequences implementation Statement A Codeforces Round 751 (Div. 2) {1602} PROGRAMMING 500.0 95865 800
388 October 18, 2017 combinatorics dp implementation math Statement F Codeforces Round 752 (Div. 1) {1603} PROGRAMMING 3750.0 Editorial of Codeforces Round #752
19050 Dominant Character brute force implementation strings Statement C Codeforces Round 754 (Div. 2) {1605} PROGRAMMING 1500.0 tutorial 1400
1204 Array Equalizer binary search implementation math number theory sortings Statement E Codeforces Round 754 (Div. 2) {1605} PROGRAMMING 2500.0 tutorial 2400
1608 Red-Blue Matrix constructive algorithms data structures hashing implementation sortings two pointers Statement D Educational Codeforces Round 116 (Rated for Div. 2) {1606} PROGRAMMING 96454
19642 Update Files implementation math Statement B Educational Codeforces Round 116 (Rated for Div. 2) {1606} PROGRAMMING 96454
10076 Robot on the Board 1 implementation Statement E Codeforces Round 753 (Div. 3) {1607} PROGRAMMING Codeforces Round #753 (Div. 3) Editorial
41047 Linear Keyboard implementation strings Statement A Codeforces Round 753 (Div. 3) {1607} PROGRAMMING Codeforces Round #753 (Div. 3) Editorial
513 The Cells on the Paper binary search data structures implementation sortings Statement E Codeforces Round 758 (Div.1 + Div. 2) {1608} PROGRAMMING 2000.0 Editorial of Codeforces Round #758 (Div.1 + Div. 2)
12183 William the Vigilant implementation strings Statement B Deltix Round, Autumn 2021 (open for everyone, rated, Div. 1 + Div. 2) {1609} PROGRAMMING 1000.0 Deltix Round, Autumn 2021. Editorial 1100
10532 Complex Market Analysis binary search dp implementation number theory schedules two pointers Statement C Deltix Round, Autumn 2021 (open for everyone, rated, Div. 1 + Div. 2) {1609} PROGRAMMING 1500.0 Deltix Round, Autumn 2021. Editorial 1400
8532 Social Network dsu graphs greedy implementation trees Statement D Deltix Round, Autumn 2021 (open for everyone, rated, Div. 1 + Div. 2) {1609} PROGRAMMING 2000.0 Deltix Round, Autumn 2021. Editorial 1600
19055 Divide and Multiply greedy implementation math number theory Statement A Deltix Round, Autumn 2021 (open for everyone, rated, Div. 1 + Div. 2) {1609} PROGRAMMING 500.0 Deltix Round, Autumn 2021. Editorial 900
715 Mashtali: a Space Oddysey constructive algorithms dfs and similar graphs implementation Statement F Codeforces Global Round 17 {1610} PROGRAMMING 2750.0 Codeforces Global Round 17 Editorial
17153 Anti Light's Cell Guessing constructive algorithms implementation math Statement A Codeforces Global Round 17 {1610} PROGRAMMING 500.0 Codeforces Global Round 17 Editorial
26803 Long Comparison implementation Statement A Educational Codeforces Round 118 (Rated for Div. 2) {1613} PROGRAMMING 97467
23453 Absent Remainder implementation Statement B Educational Codeforces Round 118 (Rated for Div. 2) {1613} PROGRAMMING 97467
13272 Representative Edges brute force geometry implementation math Statement C Good Bye 2021: 2022 is NEAR {1616} PROGRAMMING 1500.0 Good Bye 2021 -- Editorial 1500
24007 Integer Diversity implementation Statement A Good Bye 2021: 2022 is NEAR {1616} PROGRAMMING 500.0 Good Bye 2021 -- Editorial 800
1059 Christmas Chocolates dfs and similar dp games graphs implementation math number theory shortest paths trees Statement E Codeforces Round 761 (Div. 2) {1617} PROGRAMMING 3000.0 Editorial for Codeforces Round #761 (Div. 2)
4793 Reverse bitmasks implementation math strings Statement F Codeforces Round 760 (Div. 3) {1618} PROGRAMMING Codeforces Round #760 (Div. 3) Editorial
23933 Missing Bigram implementation Statement B Codeforces Round 760 (Div. 3) {1618} PROGRAMMING Codeforces Round #760 (Div. 3) Editorial
2791 Unusual Minesweeper binary search dfs and similar dsu implementation sortings Statement G Codeforces Round 762 (Div. 3) {1619} PROGRAMMING Tutorial
22873 Wrong Addition implementation Statement C Codeforces Round 762 (Div. 3) {1619} PROGRAMMING Tutorial
33125 Squares and Cubes implementation math Statement B Codeforces Round 762 (Div. 3) {1619} PROGRAMMING Tutorial
63651 Square String? implementation strings Statement A Codeforces Round 762 (Div. 3) {1619} PROGRAMMING Tutorial
7318 BA-String bitmasks brute force dp greedy implementation math shortest paths Statement C Educational Codeforces Round 119 (Rated for Div. 2) {1620} PROGRAMMING 98061
23295 Equal or Not Equal constructive algorithms implementation Statement A Educational Codeforces Round 119 (Rated for Div. 2) {1620} PROGRAMMING 98061
1945 New School binary search data structures greedy implementation sortings Statement E Hello 2022 {1621} PROGRAMMING 2250.0
14634 Integers Shop data structures greedy implementation Statement B Hello 2022 {1621} PROGRAMMING 1000.0
20778 Robot Cleaner brute force implementation math Statement A Codeforces Round 763 (Div. 2) {1623} PROGRAMMING 500.0 Codeforces Round #763 (Div. 2) Editorial
14710 Game on Ranges brute force implementation sortings Statement B Codeforces Round 763 (Div. 2) {1623} PROGRAMMING 1000.0 Codeforces Round #763 (Div. 2) Editorial
1490 Robot Cleaner Revisit dp implementation math probabilities Statement D Codeforces Round 763 (Div. 2) {1623} PROGRAMMING 2500.0 Codeforces Round #763 (Div. 2) Editorial
4655 Masha-forgetful brute force constructive algorithms dp hashing implementation strings Statement E Codeforces Round 764 (Div. 3) {1624} PROGRAMMING Codeforces Round #764 (Div. 3) Editorial
55431 Make AP implementation math Statement B Codeforces Round 764 (Div. 3) {1624} PROGRAMMING Codeforces Round #764 (Div. 3) Editorial
2363 Binary Spiders bitmasks data structures implementation sortings trees Statement D Codeforces Round 765 (Div. 2) {1625} PROGRAMMING 2000.0 Editorial of Codeforces Round #765 (Div. 2)
11966 Monsters And Spells data structures dp fft greedy implementation two pointers Statement C Educational Codeforces Round 121 (Rated for Div. 2) {1626} PROGRAMMING 99136
24961 Not Shading constructive algorithms implementation Statement A Codeforces Round 766 (Div. 2) {1627} PROGRAMMING 500.0 Codeforces Round #766 (Div. 2) Editorial
2845 Not Escaping data structures dp implementation shortest paths sortings two pointers Statement E Codeforces Round 766 (Div. 2) {1627} PROGRAMMING 2000.0 Codeforces Round #766 (Div. 2) Editorial
683 Not Splitting geometry graphs implementation shortest paths Statement F Codeforces Round 766 (Div. 2) {1627} PROGRAMMING 2750.0 Codeforces Round #766 (Div. 2) Editorial
3632 Grid Xor constructive algorithms greedy implementation interactive math Statement C Codeforces Round 767 (Div. 1) {1628} PROGRAMMING 1250.0 99276
31218 ABC implementation Statement A Codeforces Round 769 (Div. 2) {1632} PROGRAMMING 500.0 Editorial of Codeforces Round #769
1787 Spanning Tree Queries binary search data structures dsu graphs implementation math sortings Statement E Educational Codeforces Round 122 (Rated for Div. 2) {1633} PROGRAMMING 99539
2447 Colorful Operations data structures implementation Statement E Codeforces Round 771 (Div. 2) {1638} PROGRAMMING 2500.0 Codeforces Round #771 Editorial
4802 Big Brush dfs and similar greedy implementation Statement D Codeforces Round 771 (Div. 2) {1638} PROGRAMMING 1750.0 Codeforces Round #771 Editorial
4107 Repetitions Decoding constructive algorithms implementation sortings Statement B Codeforces Round 773 (Div. 1) {1641} PROGRAMMING 1250.0 Codeforces Round #773 editorial
3503 Expand the Path brute force combinatorics implementation math Statement E Educational Codeforces Round 123 (Rated for Div. 2) {1644} PROGRAMMING 100227
21358 Anti-Fibonacci Permutation brute force constructive algorithms implementation Statement B Educational Codeforces Round 123 (Rated for Div. 2) {1644} PROGRAMMING 100227
15090 Increase Subarray Sums dp implementation Statement C Educational Codeforces Round 123 (Rated for Div. 2) {1644} PROGRAMMING 100227
28732 Doors and Keys implementation Statement A Educational Codeforces Round 123 (Rated for Div. 2) {1644} PROGRAMMING 100227
7931 Cross Coloring implementation math Statement D Educational Codeforces Round 123 (Rated for Div. 2) {1644} PROGRAMMING 100227
4494 Weight the Tree constructive algorithms dfs and similar dp implementation trees Statement D Codeforces Round 774 (Div. 2) {1646} PROGRAMMING 2000.0 Codeforces Round #774 (Div. 2) Editorial 2000
701 Playing Around the Table constructive algorithms greedy implementation Statement F Codeforces Round 774 (Div. 2) {1646} PROGRAMMING 3000.0 Codeforces Round #774 (Div. 2) Editorial 2900
17191 Madoka and the Elegant Gift brute force graphs implementation Statement B Codeforces Round 777 (Div. 2) {1647} PROGRAMMING 1250.0 Codeforces Round #777 Editorial
23531 Madoka and Math Dad implementation math Statement A Codeforces Round 777 (Div. 2) {1647} PROGRAMMING 500.0 Codeforces Round #777 Editorial
3360 Tyler and Strings combinatorics data structures implementation strings Statement C Codeforces Round 775 (Div. 1, based on Moscow Open Olympiad in Informatics) {1648} PROGRAMMING 1500.0 Codeforces Round #775 Editorial
588 Air Reform data structures dfs and similar divide and conquer dsu graphs implementation trees Statement E Codeforces Round 775 (Div. 1, based on Moscow Open Olympiad in Informatics) {1648} PROGRAMMING 2500.0 Codeforces Round #775 Editorial
14006 Game of Ball Passing greedy implementation Statement B Codeforces Round 775 (Div. 2, based on Moscow Open Olympiad in Informatics) {1649} PROGRAMMING 1000.0 Codeforces Round #775 Editorial
16081 Game implementation Statement A Codeforces Round 775 (Div. 2, based on Moscow Open Olympiad in Informatics) {1649} PROGRAMMING 500.0 Codeforces Round #775 Editorial
4492 Rescheduling the Exam binary search data structures greedy implementation math sortings Statement E Codeforces Round 776 (Div. 3) {1650} PROGRAMMING 100712
18723 Weight of the System of Nested Segments greedy hashing implementation sortings Statement C Codeforces Round 776 (Div. 3) {1650} PROGRAMMING 100712
37492 Deletions of Two Adjacent Letters implementation strings Statement A Codeforces Round 776 (Div. 3) {1650} PROGRAMMING 100712
11628 Fault-tolerant Network brute force data structures implementation Statement C Educational Codeforces Round 124 (Rated for Div. 2) {1651} PROGRAMMING Educational Codeforces Round 124 Editorial
657 Sum of Matchings dfs and similar greedy implementation math Statement E Educational Codeforces Round 124 (Rated for Div. 2) {1651} PROGRAMMING Educational Codeforces Round 124 Editorial
26737 Playoff implementation Statement A Educational Codeforces Round 124 (Rated for Div. 2) {1651} PROGRAMMING Educational Codeforces Round 124 Editorial
3092 Potion Brewing Class dfs and similar implementation math number theory trees Statement D Codeforces Round 778 (Div. 1 + Div. 2, based on Technocup 2022 Final Round) {1654} PROGRAMMING 2000.0 Editorial of Codeforces Round #778 (Div. 1 + Div. 2, based on Technocup 2022 Final Round) 2100
19429 Maximum Cake Tastiness greedy implementation sortings Statement A Codeforces Round 778 (Div. 1 + Div. 2, based on Technocup 2022 Final Round) {1654} PROGRAMMING 500.0 Editorial of Codeforces Round #778 (Div. 1 + Div. 2, based on Technocup 2022 Final Round) 800
835 Words on Tree 2-sat implementation trees Statement F Educational Codeforces Round 125 (Rated for Div. 2) {1657} PROGRAMMING 101161
4479 Reverse Sort Sum constructive algorithms data structures greedy implementation math two pointers Statement D Codeforces Round 782 (Div. 2) {1659} PROGRAMMING 2000.0 Codeforces Round #782 (Div. 2) Editorial
32913 Red Versus Blue constructive algorithms greedy implementation math Statement A Codeforces Round 782 (Div. 2) {1659} PROGRAMMING 500.0 Codeforces Round #782 (Div. 2) Editorial
15749 Line Empire dp greedy implementation math Statement C Codeforces Round 782 (Div. 2) {1659} PROGRAMMING 1500.0 Codeforces Round #782 (Div. 2) Editorial
11933 Maximum Product Strikes Back binary search implementation math Statement D Codeforces Round 780 (Div. 3) {1660} PROGRAMMING Codeforces Round #780 (Div. 3) Editorial
8010 Promising String (easy version) brute force implementation math strings Statement F1 Codeforces Round 780 (Div. 3) {1660} PROGRAMMING Codeforces Round #780 (Div. 3) Editorial
8154 Matrix and Shifts constructive algorithms greedy implementation Statement E Codeforces Round 780 (Div. 3) {1660} PROGRAMMING Codeforces Round #780 (Div. 3) Editorial
3198 Promising String (hard version) data structures implementation math strings Statement F2 Codeforces Round 780 (Div. 3) {1660} PROGRAMMING Codeforces Round #780 (Div. 3) Editorial
5421 Progressions Covering data structures greedy implementation Statement D Educational Codeforces Round 126 (Rated for Div. 2) {1661} PROGRAMMING Educational Codeforces Round 126 Editorial
1265 Antennas data structures dfs and similar graphs graphs implementation implementation shortest paths shortest paths Statement F SWERC 2021-2022 - Online Mirror (Unrated, ICPC Rules, Teams Preferred) {1662} PROGRAMMING 102042
1613 Circular Maze dfs and similar graphs implementation Statement O SWERC 2021-2022 - Online Mirror (Unrated, ICPC Rules, Teams Preferred) {1662} PROGRAMMING 102042
5887 Pōja Verdon implementation Statement C April Fools Day Contest 2022 {1663} PROGRAMMING April Fools Day Contest 2022 Editorial
595 Are You Safe? implementation Statement E April Fools Day Contest 2022 {1663} PROGRAMMING April Fools Day Contest 2022 Editorial
1849 MinimizOR binary search bitmasks data structures dp greedy implementation Statement E Codeforces Round 781 (Div. 2) {1665} PROGRAMMING 2250.0 Codeforces Round #781 (Div. 2) Editorial
122 Yin Yang implementation Statement F Codeforces Round 783 (Div. 1) {1667} PROGRAMMING 3500.0 Codeforces Round #783 Editorial 3500
16843 Direction Change implementation math Statement A Codeforces Round 783 (Div. 2) {1668} PROGRAMMING 500.0 Codeforces Round #783 Editorial 800
25844 Colorful Stamp implementation Statement D Codeforces Round 784 (Div. 4) {1669} PROGRAMMING 102101 1100
22098 Fall Down dfs and similar implementation Statement G Codeforces Round 784 (Div. 4) {1669} PROGRAMMING 102101 1200
42192 Odd/Even Increments greedy greedy implementation math Statement C Codeforces Round 784 (Div. 4) {1669} PROGRAMMING 102101 800
91177 Division? implementation Statement A Codeforces Round 784 (Div. 4) {1669} PROGRAMMING 102101 800
56884 Triple implementation sortings Statement B Codeforces Round 784 (Div. 4) {1669} PROGRAMMING 102101 800
13497 Dorms War brute force implementation strings Statement B Codeforces Round 788 (Div. 2) {1670} PROGRAMMING 1000.0 Tutorial 1100
11119 Where is the Pizza? data structures dfs and similar dsu graphs implementation math Statement C Codeforces Round 788 (Div. 2) {1670} PROGRAMMING 1750.0 Tutorial 1400
5700 Very Suspicious binary search brute force geometry implementation math Statement D Codeforces Round 788 (Div. 2) {1670} PROGRAMMING 2250.0 Tutorial 1700
16028 Prof. Slim greedy implementation sortings Statement A Codeforces Round 788 (Div. 2) {1670} PROGRAMMING 500.0 Tutorial 800
21456 String Building implementation Statement A Educational Codeforces Round 127 (Rated for Div. 2) {1671} PROGRAMMING 102181
14080 Unequal Array constructive algorithms greedy implementation Statement C Codeforces Global Round 20 {1672} PROGRAMMING 750.0 Global Round 20 Editorial 1100
6983 Cyclic Rotation constructive algorithms greedy implementation two pointers Statement D Codeforces Global Round 20 {1672} PROGRAMMING 1000.0 Global Round 20 Editorial 1700
16892 Log Chopping constructive algorithms games implementation math Statement A Codeforces Global Round 20 {1672} PROGRAMMING 250.0 Global Round 20 Editorial 800
16508 I love AAAB constructive algorithms implementation Statement B Codeforces Global Round 20 {1672} PROGRAMMING 500.0 Global Round 20 Editorial 800
3643 Lost Arithmetic Progression combinatorics implementation math number theory Statement D Codeforces Round 785 (Div. 2) {1673} PROGRAMMING 2000.0 Codeforces Round #785 (Div. 2) Editorial
26604 Infinite Replacement combinatorics implementation strings Statement C Codeforces Round 786 (Div. 3) {1674} PROGRAMMING 102482
17892 A-B-C Sort constructive algorithms implementation sortings Statement D Codeforces Round 786 (Div. 3) {1674} PROGRAMMING 102482
5719 Desktop Rearrangement data structures greedy implementation Statement F Codeforces Round 786 (Div. 3) {1674} PROGRAMMING 102482
15024 Vertical Paths graphs implementation trees Statement D Codeforces Round 787 (Div. 3) {1675} PROGRAMMING 102550
29776 X-Sum brute force greedy implementation Statement D Codeforces Round 790 (Div. 4) {1676} PROGRAMMING Codeforces Round #790 (Div. 4) Editorial
35285 Most Similar Words brute force greedy implementation implementation math strings Statement C Codeforces Round 790 (Div. 4) {1676} PROGRAMMING Codeforces Round #790 (Div. 4) Editorial
20527 Longest Strike data structures greedy implementation sortings two pointers Statement F Codeforces Round 790 (Div. 4) {1676} PROGRAMMING Codeforces Round #790 (Div. 4) Editorial
89934 Lucky? implementation Statement A Codeforces Round 790 (Div. 4) {1676} PROGRAMMING Codeforces Round #790 (Div. 4) Editorial
4582 Tokitsukaze and Meeting implementation math Statement B Codeforces Round 789 (Div. 1) {1677} PROGRAMMING 1250.0 Tutorial
7378 Tokitsukaze and Good 01-String (hard version) dp implementation Statement B2 Codeforces Round 789 (Div. 2) {1678} PROGRAMMING 1000.0 Codeforces Round 789 Chinese Tutorial.pdf
19204 Tokitsukaze and All Zero Sequence implementation Statement A Codeforces Round 789 (Div. 2) {1678} PROGRAMMING 500.0 Codeforces Round 789 Chinese Tutorial.pdf
16656 Tokitsukaze and Good 01-String (easy version) implementation Statement B1 Codeforces Round 789 (Div. 2) {1678} PROGRAMMING 750.0 Codeforces Round 789 Chinese Tutorial.pdf
28863 Stone Age Problem data structures implementation Statement B Codeforces Round 791 (Div. 2) {1679} PROGRAMMING 1000.0 Codeforces Round #791 (Div. 2) Editorial
11822 Rooks Defenders data structures implementation Statement C Codeforces Round 791 (Div. 2) {1679} PROGRAMMING 1500.0 Codeforces Round #791 (Div. 2) Editorial
19121 Robots implementation Statement B Educational Codeforces Round 128 (Rated for Div. 2) {1680} PROGRAMMING 102852
18837 Double Sort implementation sortings Statement C Educational Codeforces Round 129 (Rated for Div. 2) {1681} PROGRAMMING 103163 1200
21108 Card Trick implementation math Statement B Educational Codeforces Round 129 (Rated for Div. 2) {1681} PROGRAMMING 103163 800
16587 LIS or Reverse LIS? constructive algorithms greedy implementation math Statement C Codeforces Round 793 (Div. 2) {1682} PROGRAMMING 1500.0 Codeforces Round #793 (Div. 2) Editorial
13331 Column Swapping constructive algorithms implementation sortings Statement C Codeforces Round 792 (Div. 1 + Div. 2) {1684} PROGRAMMING 1250.0 Codeforces Round #792 (Div. 1 + Div. 2) Editorial 1400
3729 Linguistics greedy implementation strings Statement B Codeforces Round 794 (Div. 1) {1685} PROGRAMMING 1000.0 103198 2000
760 Cute number binary search brute force implementation math Statement D Codeforces Round 796 (Div. 1) {1687} PROGRAMMING 1500.0 Editorial of Codeforces Round 796
17804 Lex String brute force greedy implementation sortings two pointers Statement A Codeforces Round 798 (Div. 2) {1689} PROGRAMMING 500.0 Editorial for Codeforces Round #798 (Div. 2)
19205 Mystic Permutation data structures greedy implementation Statement B Codeforces Round 798 (Div. 2) {1689} PROGRAMMING 750.0 Editorial for Codeforces Round #798 (Div. 2)
49699 Black and White Stripe implementation two pointers Statement D Codeforces Round 797 (Div. 3) {1690} PROGRAMMING Codeforces Round #797 (Div. 3) Editorial 1000
28244 Restoring the Duration of Tasks data structures greedy implementation Statement C Codeforces Round 797 (Div. 3) {1690} PROGRAMMING Codeforces Round #797 (Div. 3) Editorial 800
27072 Array Decrements greedy implementation Statement B Codeforces Round 797 (Div. 3) {1690} PROGRAMMING Codeforces Round #797 (Div. 3) Editorial 800
7688 Max GEQ Sum binary search constructive algorithms data structures divide and conquer implementation sortings two pointers Statement D CodeCraft-22 and Codeforces Round 795 (Div. 2) {1691} PROGRAMMING 1750.0 Editorial for CodeCraft-22 and Codeforces Round #795 (Div. 2)
37278 Shoe Shuffling constructive algorithms greedy implementation two pointers Statement B CodeCraft-22 and Codeforces Round 795 (Div. 2) {1691} PROGRAMMING 750.0 Editorial for CodeCraft-22 and Codeforces Round #795 (Div. 2)
35236 Binary Deque binary search implementation two pointers Statement E Codeforces Round 799 (Div. 4) {1692} PROGRAMMING Codeforces Round #799 (Div. 4) Editorial
21835 The Clock brute force implementation Statement D Codeforces Round 799 (Div. 4) {1692} PROGRAMMING Codeforces Round #799 (Div. 4) Editorial
87562 Marathon implementation Statement A Codeforces Round 799 (Div. 4) {1692} PROGRAMMING Codeforces Round #799 (Div. 4) Editorial
39294 Where's the Bishop? implementation Statement C Codeforces Round 799 (Div. 4) {1692} PROGRAMMING Codeforces Round #799 (Div. 4) Editorial
23603 Creep greedy implementation Statement A Codeforces Round 800 (Div. 2) {1694} PROGRAMMING 500.0 Codeforces Round #800 Editorial 800
12644 Fishingprince Plays With Array constructive algorithms greedy implementation Statement C Codeforces Global Round 21 {1696} PROGRAMMING 1500.0 Editorial of Codeforces Global Round 21
1476 Coloring brute force combinatorics constructive algorithms dfs and similar dp dsu graphs implementation Statement E Educational Codeforces Round 130 (Rated for Div. 2) {1697} PROGRAMMING 103835
15905 awoo's Favorite Problem constructive algorithms data structures dp greedy implementation strings two pointers Statement C Educational Codeforces Round 130 (Rated for Div. 2) {1697} PROGRAMMING 103835
26823 Parkway Walk greedy implementation Statement A Educational Codeforces Round 130 (Rated for Div. 2) {1697} PROGRAMMING 103835
21516 Rising Sand constructive algorithms greedy implementation Statement B Codeforces Round 803 (Div. 2) {1698} PROGRAMMING 500.0 Codeforces Round #803 (Div. 2) Editorial
20037 Palindromic Numbers constructive algorithms implementation math Statement B Codeforces Round 802 (Div. 2) {1700} PROGRAMMING 1000.0 103978 1100
27680 Grass Field implementation Statement A Educational Codeforces Round 131 (Rated for Div. 2) {1701} PROGRAMMING Educational Codeforces Round 131 Editorial
67970 ICPC Balloons data structures implementation Statement B Codeforces Round 806 (Div. 4) {1703} PROGRAMMING 104786
29004 Mirror Grid implementation Statement E Codeforces Round 806 (Div. 4) {1703} PROGRAMMING 104786
99811 YES or YES? implementation strings Statement A Codeforces Round 806 (Div. 4) {1703} PROGRAMMING 104786
41287 Cypher implementation strings Statement C Codeforces Round 806 (Div. 4) {1703} PROGRAMMING 104786
14655 Mark and His Unfinished Essay brute force implementation Statement C Codeforces Round 807 (Div. 2) {1705} PROGRAMMING 1250.0 Codeforces Round #807 (Div 2.) Editorial
25747 Mark the Dust Sweeper greedy implementation Statement B Codeforces Round 807 (Div. 2) {1705} PROGRAMMING 1000.0 Codeforces Round #807 (Div 2.) Editorial
16240 Qpwoeirut And The City dp greedy implementation Statement C Codeforces Round 809 (Div. 2) {1706} PROGRAMMING 1250.0 Codeforces Round #809 Editorial
15658 Doremy's IQ binary search greedy implementation Statement A Codeforces Round 808 (Div. 1) {1707} PROGRAMMING 500.0 104930
6465 Difference Array brute force implementation math sortings Statement B Codeforces Round 808 (Div. 1) {1707} PROGRAMMING 750.0 104930
26178 Also Try Minecraft data structures implementation Statement B Educational Codeforces Round 132 (Rated for Div. 2) {1709} PROGRAMMING 105164
10466 Recover an RBS greedy implementation strings Statement C Educational Codeforces Round 132 (Rated for Div. 2) {1709} PROGRAMMING 105164
25162 Wonderful Permutation greedy implementation Statement A Codeforces Round 813 (Div. 2) {1712} PROGRAMMING 500.0 Codeforces Round #813 (Div. 2) Editorial
22884 Traveling Salesman Problem geometry greedy implementation Statement A Codeforces Round 812 (Div. 2) {1713} PROGRAMMING 500.0 Codeforces Round #812 (Div. 2) Editorial 800
9837 Path Prefixes binary search data structures dfs and similar implementation trees Statement G Codeforces Round 811 (Div. 3) {1714} PROGRAMMING Codeforces Round #811 (Div. 3) Editorial
3735 Build a Tree and That Is It brute force constructive algorithms greedy implementation trees Statement F Codeforces Round 811 (Div. 3) {1714} PROGRAMMING Codeforces Round #811 (Div. 3) Editorial
34262 Remove Prefix data structures implementation Statement B Codeforces Round 811 (Div. 3) {1714} PROGRAMMING Codeforces Round #811 (Div. 3) Editorial
33436 Everyone Loves to Sleep implementation math Statement A Codeforces Round 811 (Div. 3) {1714} PROGRAMMING Codeforces Round #811 (Div. 3) Editorial
10613 Monoblock brute force combinatorics data structures divide and conquer greedy implementation Statement C Codeforces Round 816 (Div. 2) {1715} PROGRAMMING 1750.0 Codeforces Round #816 (Div. 2) editorial
4640 Robot in a Hallway data structures dp implementation Statement C Educational Codeforces Round 133 (Rated for Div. 2) {1716} PROGRAMMING 105653
3527 Fibonacci Strings brute force data structures greedy implementation math number theory Statement B Codeforces Round 814 (Div. 1) {1718} PROGRAMMING 1250.0 Codeforces Round #814 (Div. 1, Div. 2) Editorial
214 Impressionism constructive algorithms graphs implementation math Statement E Codeforces Round 814 (Div. 1) {1718} PROGRAMMING 2250.0 Codeforces Round #814 (Div. 1, Div. 2) Editorial
14452 Fighting Tournament binary search data structures implementation two pointers Statement C Codeforces Round 814 (Div. 2) {1719} PROGRAMMING 1250.0 Codeforces Round #814 (Div. 1, Div. 2) Editorial
18315 Corners greedy implementation Statement C Codeforces Round 815 (Div. 2) {1720} PROGRAMMING 1250.0 Codeforces Round #815 (Div. 2) Editorial
23970 Deadly Laser brute force implementation Statement B Educational Codeforces Round 134 (Rated for Div. 2) {1721} PROGRAMMING 106416
28399 Image data structures implementation Statement A Educational Codeforces Round 134 (Rated for Div. 2) {1721} PROGRAMMING 106416
13638 Counting Rectangles brute force data structures dp implementation Statement E Codeforces Round 817 (Div. 4) {1722} PROGRAMMING 106478 1600
8106 L-shapes dfs and similar implementation Statement F Codeforces Round 817 (Div. 4) {1722} PROGRAMMING 106478 1700
36700 Word Game data structures implementation Statement C Codeforces Round 817 (Div. 4) {1722} PROGRAMMING 106478 800
67038 Spell Check implementation Statement A Codeforces Round 817 (Div. 4) {1722} PROGRAMMING 106478 800
57414 Colourblindness implementation Statement B Codeforces Round 817 (Div. 4) {1722} PROGRAMMING 106478 800
117 Mainak and the Bleeding Polygon geometry implementation math Statement H Codeforces Round 819 (Div. 1 + Div. 2) and Grimoire of Code Annual Contest 2022 {1726} PROGRAMMING 3500.0 Codeforces Round #819 (Div. 1 + Div. 2) and Grimoire of Code Annual Contest 2022 Editorial
25506 Colored Balls: Revisited greedy implementation sortings Statement A Educational Codeforces Round 135 (Rated for Div. 2) {1728} PROGRAMMING 106805
17957 Meeting on the Line binary search greedy implementation math ternary search Statement B Codeforces Round 823 (Div. 2) {1730} PROGRAMMING 1000.0 Codeforces Round #823 — editorial 1600
17760 Bestie brute force constructive algorithms implementation math number theory Statement A Codeforces Round 830 (Div. 2) {1732} PROGRAMMING 750.0 108327 1000
10025 Balance (Easy version) brute force data structures implementation Statement D1 Codeforces Round 830 (Div. 2) {1732} PROGRAMMING 1250.0 108327 1500
3146 Sheikh (Hard Version) binary search bitmasks brute force greedy implementation two pointers Statement C2 Codeforces Round 830 (Div. 2) {1732} PROGRAMMING 1000.0 108327 2100
10231 Ela's Fitness and the Luxury Number binary search implementation math Statement B Dytechlab Cup 2022 {1737} PROGRAMMING 1000.0 Editorial of Dytechlab Cup 2022
6468 Ela and Crickets games implementation math Statement C Dytechlab Cup 2022 {1737} PROGRAMMING 1500.0 Editorial of Dytechlab Cup 2022