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6590 Array Repetition binary search data structures dp implementation math Statement D Codeforces Round 919 (Div. 2) {1920} PROGRAMMING 2000.0 Editorial for Codeforces Round #919 (Div. 2)
1504 Mischievous Shooter data structures divide and conquer dp implementation Statement G Codeforces Round 920 (Div. 3) {1921} PROGRAMMING Editorial for Codeforces Round 920 (Div. 3)
20066 Monsters Attack! dp greedy implementation Statement B Educational Codeforces Round 162 (Rated for Div. 2) {1923} PROGRAMMING Educational Codeforces Round 162 Editorial
15121 Vlad and an Odd Ordering binary search bitmasks data structures dp implementation math number theory Statement E Codeforces Round 928 (Div. 4) {1926} PROGRAMMING 126132
2135 Vlad and Avoiding X bitmasks brute force constructive algorithms dfs and similar dp implementation Statement F Codeforces Round 928 (Div. 4) {1926} PROGRAMMING 126132
4648 Vlad and Trouble at MIT dfs and similar dp flows graphs greedy implementation trees Statement G Codeforces Round 928 (Div. 4) {1926} PROGRAMMING 126132
33353 Vlad and a Sum of Sum of Digits dp implementation Statement C Codeforces Round 928 (Div. 4) {1926} PROGRAMMING 126132
2221 Modular Sequence constructive algorithms dp greedy implementation math number theory Statement E Codeforces Round 924 (Div. 2) {1928} PROGRAMMING 2250.0 Codeforces Round 924 Editorial
34354 Thorns and Coins dp greedy implementation Statement A Codeforces Round 927 (Div. 3) {1932} PROGRAMMING 126196
21196 Rudolf and the Ball Game dp implementation Statement D Codeforces Round 933 (Div. 3) {1941} PROGRAMMING 127018
14027 Tree Cutting binary search dp greedy implementation trees Statement C Codeforces Round 936 (Div. 2) {1946} PROGRAMMING 1500.0 Codeforces Round #936 (Div. 2) Editorial
26509 Array Fix brute force dp greedy implementation Statement B Educational Codeforces Round 163 (Rated for Div. 2) {1948} PROGRAMMING Educational Codeforces Round 163 Editorial
6294 Shuffling Songs bitmasks dp graphs implementation strings Statement G Codeforces Round 937 (Div. 4) {1950} PROGRAMMING Codeforces Round 937 (Div. 4) Editorial
26716 Product of Binary Decimals dp implementation number theory Statement D Codeforces Round 937 (Div. 4) {1950} PROGRAMMING Codeforces Round 937 (Div. 4) Editorial
4854 Nene and the Mex Operator bitmasks brute force constructive algorithms divide and conquer dp greedy implementation Statement D Codeforces Round 939 (Div. 2) {1956} PROGRAMMING 1750.0 [Editorial] Codeforces Round 939 (Div. 2)
11779 Minimizing the Sum dp implementation Statement C Educational Codeforces Round 165 (Rated for Div. 2) {1969} PROGRAMMING Educational Codeforces Round 165 Editorial 1700
412 Card Pairing dp greedy hashing implementation Statement F Educational Codeforces Round 165 (Rated for Div. 2) {1969} PROGRAMMING Educational Codeforces Round 165 Editorial 3000
30976 Binary Cut dp greedy implementation sortings strings Statement D Codeforces Round 944 (Div. 4) {1971} PROGRAMMING Codeforces Round 944 (Div. 4) Editorial 1100
338 Maximum GCD Sum Queries bitmasks brute force dp implementation number theory Statement F Codeforces Round 945 (Div. 2) {1973} PROGRAMMING 3000.0 Editorial for Codeforces Round #945 (Div. 2) 3100
28902 Chess For Three brute force dp implementation math Statement A Codeforces Round 945 (Div. 2) {1973} PROGRAMMING 500.0 Editorial for Codeforces Round #945 (Div. 2) 900
12612 Job Interview binary search dp greedy implementation two pointers Statement C Educational Codeforces Round 166 (Rated for Div. 2) {1976} PROGRAMMING Educational Codeforces Round 166 Editorial
4671 Computing Machine data structures dp greedy implementation Statement E Codeforces Round 953 (Div. 2) {1978} PROGRAMMING 2000.0 130527
14878 Have Your Cake and Eat It Too binary search brute force dp greedy implementation Statement C Codeforces Round 956 (Div. 2) and ByteRace 2024 {1983} PROGRAMMING 1250.0
24489 Test of Love dp greedy implementation Statement D Codeforces Round 957 (Div. 3) {1992} PROGRAMMING Shayan's Video Tutorial
24082 Triple Operations dp implementation math Statement E Codeforces Round 964 (Div. 4) {1999} PROGRAMMING Video Tutorial
2350 Ksyusha and the Loaded Set binary search data structures dp implementation trees Statement H Codeforces Round 966 (Div. 3) {2000} PROGRAMMING 132689
7056 Color Rows and Columns dp greedy implementation math Statement F Codeforces Round 966 (Div. 3) {2000} PROGRAMMING 132689
4707 Turtle and a MEX Problem (Hard Version) dfs and similar dp graphs greedy implementation Statement D2 Codeforces Round 968 (Div. 2) {2003} PROGRAMMING 1250.0 sol-zh.pdf
3368 Subtangle Game (Easy Version) dp games greedy implementation Statement E1 Codeforces Round 972 (Div. 2) {2005} PROGRAMMING 1500.0 Discussion stream (With Hints)
1089 Subtangle Game (Hard Version) dp games greedy implementation Statement E2 Codeforces Round 972 (Div. 2) {2005} PROGRAMMING 2000.0 Discussion stream (With Hints)
8809 Lazy Narek dp implementation Statement C Codeforces Round 972 (Div. 2) {2005} PROGRAMMING 1500.0 Discussion stream (With Hints)
5307 Speedbreaker binary search dp greedy implementation math two pointers Statement B Codeforces Round 975 (Div. 1) {2018} PROGRAMMING 750.0 Editorial of Codeforces Round 975 (Div. 1, Div. 2)
343 Speedbreaker Counting (Easy Version) combinatorics dp games greedy implementation math Statement F1 Codeforces Round 975 (Div. 1) {2018} PROGRAMMING 1500.0 Editorial of Codeforces Round 975 (Div. 1, Div. 2)
2220 Max Plus Min Plus Size data structures dp dsu greedy implementation matrices Statement D Codeforces Round 975 (Div. 1) {2018} PROGRAMMING 1500.0 Editorial of Codeforces Round 975 (Div. 1, Div. 2)
1959 Digital Village (Easy Version) brute force data structures dp dsu graphs greedy implementation math shortest paths trees Statement E1 Codeforces Round 977 (Div. 2, based on COMPFEST 16 - Final Round) {2021} PROGRAMMING 1750.0 Codeforces Round #977 (Div. 2, based on COMPFEST 16 — Final Round) Editorial
6715 Gerrymandering dp implementation Statement C Codeforces Round 978 (Div. 2) {2022} PROGRAMMING 1750.0 Codeforces Round 978 (Div 2) Editorial
8022 Attribute Checks brute force data structures dp implementation math Statement D Educational Codeforces Round 170 (Rated for Div. 2) {2025} PROGRAMMING Educational Codeforces Round 170 Editorial
6070 Sums of Segments binary search data structures dp implementation math Statement D Educational Codeforces Round 171 (Rated for Div. 2) {2026} PROGRAMMING Educational Codeforces Round 171 Editorial
410 Bermart Ice Cream data structures dfs and similar divide and conquer dp implementation trees Statement F Educational Codeforces Round 171 (Rated for Div. 2) {2026} PROGRAMMING Educational Codeforces Round 171 Editorial
1935 The Endspeaker (Hard Version) binary search combinatorics data structures dp greedy implementation two pointers Statement D2 Codeforces Round 982 (Div. 2) {2027} PROGRAMMING 1000.0 Codeforces Round #982 (Div. 2) Editorial
7121 The Endspeaker (Easy Version) binary search dp graphs greedy implementation two pointers Statement D1 Codeforces Round 982 (Div. 2) {2027} PROGRAMMING 1250.0 Codeforces Round #982 (Div. 2) Editorial
555 Alice's Adventures in Addition bitmasks dp implementation Statement F Codeforces Round 986 (Div. 2) {2028} PROGRAMMING 2500.0 Codeforces Round 986 (Div. 2) Editorial
3814 Alice's Adventures in Cards constructive algorithms data structures dfs and similar dp graphs greedy implementation shortest paths Statement D Codeforces Round 986 (Div. 2) {2028} PROGRAMMING 1750.0 Codeforces Round 986 (Div. 2) Editorial
5900 Yet Another Real Number Problem binary search brute force data structures dp greedy implementation math two pointers Statement D Codeforces Global Round 27 {2035} PROGRAMMING 1500.0 Codeforces Global Round 27 Editorial
886 Divide OR Conquer bitmasks data structures dp implementation Statement D 2024-2025 ICPC, NERC, Southern and Volga Russian Regional Contest (Unrated, Online Mirror, ICPC Rules, Preferably Teams) {2038} PROGRAMMING 2400
337 Royal Flush dp implementation Statement M 2024-2025 ICPC, NERC, Southern and Volga Russian Regional Contest (Unrated, Online Mirror, ICPC Rules, Preferably Teams) {2038} PROGRAMMING 2800
928 Two Subarrays data structures dp implementation matrices Statement F Educational Codeforces Round 172 (Rated for Div. 2) {2042} PROGRAMMING 136886
2649 Hard Demon Problem data structures dp implementation math Statement H Codeforces Round 993 (Div. 4) {2044} PROGRAMMING Codeforces Round 993 (Div. 4) Editorial
3965 Medium Demon Problem (hard version) dfs and similar dp dsu graphs implementation trees Statement G2 Codeforces Round 993 (Div. 4) {2044} PROGRAMMING Codeforces Round 993 (Div. 4) Editorial
6121 Shift + Esc dp implementation Statement D Codeforces Round 994 (Div. 2) {2049} PROGRAMMING 1750.0 Codeforces Round #994 (Div. 2) Editorial
14914 Three Strings dp implementation strings Statement E Codeforces Round 991 (Div. 3) {2050} PROGRAMMING Разбор Codeforces Round 991 (Div. 3)
959 Earnest Matrix Complement data structures dp greedy implementation Statement F Good Bye 2024: 2025 is NEAR {2053} PROGRAMMING 2500.0 Good Bye 2024: 2025 is NEAR Editorial
4568 Resourceful Caterpillar Sequence dfs and similar dp games graphs implementation trees Statement E Good Bye 2024: 2025 is NEAR {2053} PROGRAMMING 2000.0 Good Bye 2024: 2025 is NEAR Editorial
21354 Tender Carpenter dp geometry implementation math Statement A Good Bye 2024: 2025 is NEAR {2053} PROGRAMMING 500.0 Good Bye 2024: 2025 is NEAR Editorial
2297 Kevin and Binary String (Easy Version) binary search brute force data structures dp greedy implementation strings two pointers Statement F1 IAEPC Preliminary Contest (Codeforces Round 999, Div. 1 + Div. 2) {2061} PROGRAMMING 2000.0 IAEPC Preliminary Contest (Codeforces Round 999, Div. 1 + Div. 2) Editorial
1129 Infinite Sequence (Hard Version) bitmasks constructive algorithms data structures dp implementation math Statement D2 Codeforces Round 1007 (Div. 2) {2071} PROGRAMMING 1250.0 Codeforces Round 1007 (Div. 2) Editorial
2415 Binary Subsequence Value Sum combinatorics dp fft implementation math Statement C Codeforces Round 1008 (Div. 1) {2077} PROGRAMMING 1500.0 Codeforces Round 1008 (Div. 1, Div. 2) Editorial
89 Quantifier combinatorics dp implementation Statement E Codeforces Round 1010 (Div. 1, Unrated) {2081} PROGRAMMING 2250.0 Codeforces Round 1010 (Div. 1, Div. 2, based on Zhili Cup 2025) Editorial
8420 Wonderful City dp implementation Statement C Neowise Labs Contest 1 (Codeforces Round 1018, Div. 1 + Div. 2) {2096} PROGRAMMING 1500.0 Neowise Labs Contest 1 (Codeforces Round 1018, Div. 1 + Div. 2) Editorial
742 Numbers and Strings brute force dfs and similar dp implementation math Statement F Educational Codeforces Round 178 (Rated for Div. 2) {2104} PROGRAMMING Educational Codeforces Round 178 Editorial
18203 Fibonacci Cubes brute force dp implementation math Statement B Educational Codeforces Round 179 (Rated for Div. 2) {2111} PROGRAMMING Educational Codeforces Round 179 Editorial
2562 Red Light, Green Light (Hard version) binary search dfs and similar dp dsu graphs implementation number theory Statement D2 Codeforces Round 1030 (Div. 2) {2118} PROGRAMMING 1000.0 Codeforces Round 1030 (Div. 2) Editorial
8617 Red Light, Green Light (Easy version) brute force dfs and similar dp graphs implementation Statement D1 Codeforces Round 1030 (Div. 2) {2118} PROGRAMMING 1250.0 Codeforces Round 1030 (Div. 2) Editorial
728 And Constraint bitmasks dp greedy implementation Statement E Codeforces Round 1035 (Div. 2) {2119} PROGRAMMING 2500.0 Codeforces Round 1035 (Div. 2) Editorial
2310 Ice Baby binary search brute force data structures dp implementation sortings Statement H Codeforces Round 1032 (Div. 3) {2121} PROGRAMMING Codeforces Round 1032 (Div. 3) Editorial
1603 23 Rises Again brute force data structures dfs and similar dp flows graphs implementation probabilities trees Statement H Atto Round 1 (Codeforces Round 1041, Div. 1 + Div. 2) {2127} PROGRAMMING 4000.0 Atto Round 1 (Codeforces Round 1041, Div. 1 + Div. 2) Editorial
9122 From 1 to Infinity binary search dp implementation math Statement D Codeforces Round 1043 (Div. 3) {2132} PROGRAMMING Codeforces Round 1043 (Div. 3) Editorial
1529 Looking at Towers (difficult version) combinatorics data structures dp implementation Statement E2 Educational Codeforces Round 182 (Rated for Div. 2) {2144} PROGRAMMING Educational Codeforces Round 182 Editorial
2733 Looking at Towers (easy version) combinatorics dp implementation Statement E1 Educational Codeforces Round 182 (Rated for Div. 2) {2144} PROGRAMMING Educational Codeforces Round 182 Editorial
10855 Rabbits 2-sat dp graphs greedy implementation Statement C Codeforces Global Round 29 (Div. 1 + Div. 2) {2147} PROGRAMMING 1500.0
939 Attraction Theory combinatorics dp implementation math Statement D Codeforces Round 1053 (Div. 1) {2150} PROGRAMMING 2500.0 Editorial of Codeforces Round 1053 (Div. 1, Div. 2)
6523 Not Alone dp implementation Statement D Codeforces Round 1057 (Div. 2) {2153} PROGRAMMING 1750.0 Codeforces Round 1057 (Div. 2) Editorial
10814 The Ancient Wizards' Capes brute force dp implementation Statement C Codeforces Round 1056 (Div. 2) {2155} PROGRAMMING 1750.0 Codeforces Round 1056 (Div. 2) Editorial
2841 Locked Out binary search data structures dp graphs greedy implementation two pointers Statement D Pinely Round 5 (Div. 1 + Div. 2) {2161} PROGRAMMING 2250.0
7549 Rae Taylor and Trees (hard version) binary search constructive algorithms data structures dp dsu implementation trees Statement F Codeforces Round 1065 (Div. 3) {2171} PROGRAMMING Codeforces Round 1065 (Div. 3) Editorial
12230 Rae Taylor and Trees (easy version) binary search data structures dp dsu greedy implementation trees Statement D Codeforces Round 1065 (Div. 3) {2171} PROGRAMMING Codeforces Round 1065 (Div. 3) Editorial
16378 First or Second dp greedy implementation Statement C Good Bye 2025 {2178} PROGRAMMING 1250.0
253 Zhora the Vacuum Cleaner dp implementation sortings trees Statement F Codeforces Round 1075 (Div. 2) {2189} PROGRAMMING 3250.0 Codeforces Round 1075 (Div. 2) Editorial
3348 Sub-RBS (Hard Version) combinatorics dp games implementation matrices strings Statement B2 Codeforces Round 1073 (Div. 1) {2190} PROGRAMMING 750.0 Codeforces Round 1073 (Div. 1, Div. 2) Editorial
5526 Simons and Beating Peaks data structures divide and conquer dp greedy implementation trees Statement D Codeforces Round 1083 (Div. 2) {2205} PROGRAMMING 1750.0 Tutorial
162 EXPloration, EXPloitation, and Gain Some EXPerience! bitmasks brute force dp greedy implementation Statement D Codeforces Round 1092 (Unrated, Div. 1, Based on THUPC 2026 — Finals) {2215} PROGRAMMING 2750.0 152930
7875 Cirno and Number (Easy Version) binary search brute force dp implementation Statement C1 Codeforces Round 1098 (Div. 2) {2228} PROGRAMMING 1500.0 Codeforces Round 1098 (Div. 2) Editorial
1088 Load Unbalancing binary search bitmasks dp greedy implementation Statement F Spectral::Cup 2026 Round 2 (Codeforces Round 1100, Div. 1 + Div. 2) {2229} PROGRAMMING 2500.0 Spectral::Cup 2026 Round 2 (Codeforces Round 1100, Div. 1 + Div. 2) Editorial
163 Colorful Works dp fft games implementation Statement F Codeforces Round 1105 (Div. 1) {2239} PROGRAMMING 3500.0
1202 Product of Closures bitmasks brute force constructive algorithms dp greedy implementation math Statement E Educational Codeforces Round 192 (Rated for Div. 2) {2242} PROGRAMMING