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codeforces:1780-A
codeforces
1780-A
Hayato and School
https://codeforces.com/problemset/problem/1780/A
[ "constructive algorithms", "greedy" ]
null
null
stdin_stdout
800
{ "solved_count": 22867 }
2026-11-02T05:37:07.883505+00:00
codeforces:1779-H
codeforces
1779-H
Olympic Team Building
https://codeforces.com/problemset/problem/1779/H
[ "brute force", "meet-in-the-middle" ]
null
null
stdin_stdout
3,500
{ "solved_count": 176 }
2026-11-02T05:37:07.883505+00:00
codeforces:1779-G
codeforces
1779-G
The Game of the Century
https://codeforces.com/problemset/problem/1779/G
[ "constructive algorithms", "graphs", "shortest paths" ]
null
null
stdin_stdout
3,000
{ "solved_count": 468 }
2026-11-02T05:37:07.883505+00:00
codeforces:1779-F
codeforces
1779-F
Xorcerer's Stones
https://codeforces.com/problemset/problem/1779/F
[ "bitmasks", "constructive algorithms", "dp", "trees" ]
null
null
stdin_stdout
2,500
{ "solved_count": 1487 }
2026-11-02T05:37:07.883505+00:00
codeforces:1779-E
codeforces
1779-E
Anya's Simultaneous Exhibition
https://codeforces.com/problemset/problem/1779/E
[ "constructive algorithms", "graphs", "greedy", "interactive", "sortings" ]
null
null
stdin_stdout
2,400
{ "solved_count": 2131 }
2026-11-02T05:37:07.883505+00:00
codeforces:1779-D
codeforces
1779-D
Boris and His Amazing Haircut
https://codeforces.com/problemset/problem/1779/D
[ "constructive algorithms", "data structures", "dp", "dsu", "greedy", "sortings" ]
null
null
stdin_stdout
1,700
{ "solved_count": 9247 }
2026-11-02T05:37:07.883505+00:00
codeforces:1779-C
codeforces
1779-C
Least Prefix Sum
https://codeforces.com/problemset/problem/1779/C
[ "data structures", "greedy" ]
null
null
stdin_stdout
1,600
{ "solved_count": 15148 }
2026-11-02T05:37:07.883505+00:00
codeforces:1779-B
codeforces
1779-B
MKnez's ConstructiveForces Task
https://codeforces.com/problemset/problem/1779/B
[ "constructive algorithms", "math" ]
null
null
stdin_stdout
900
{ "solved_count": 25312 }
2026-11-02T05:37:07.883505+00:00
codeforces:1779-A
codeforces
1779-A
Hall of Fame
https://codeforces.com/problemset/problem/1779/A
[ "constructive algorithms", "greedy", "strings" ]
null
null
stdin_stdout
800
{ "solved_count": 24189 }
2026-11-02T05:37:07.883505+00:00
codeforces:1778-F
codeforces
1778-F
Maximizing Root
https://codeforces.com/problemset/problem/1778/F
[ "dfs and similar", "dp", "graphs", "math", "number theory", "trees" ]
null
null
stdin_stdout
2,600
{ "solved_count": 996 }
2026-11-02T05:37:07.883505+00:00
codeforces:1778-E
codeforces
1778-E
The Tree Has Fallen!
https://codeforces.com/problemset/problem/1778/E
[ "bitmasks", "dfs and similar", "math", "trees" ]
null
null
stdin_stdout
2,500
{ "solved_count": 1221 }
2026-11-02T05:37:07.883505+00:00
codeforces:1778-D
codeforces
1778-D
Flexible String Revisit
https://codeforces.com/problemset/problem/1778/D
[ "combinatorics", "dp", "math", "probabilities" ]
null
null
stdin_stdout
2,100
{ "solved_count": 3680 }
2026-11-02T05:37:07.883505+00:00
codeforces:1778-C
codeforces
1778-C
Flexible String
https://codeforces.com/problemset/problem/1778/C
[ "bitmasks", "brute force", "strings" ]
null
null
stdin_stdout
1,600
{ "solved_count": 12058 }
2026-11-02T05:37:07.883505+00:00
codeforces:1778-B
codeforces
1778-B
The Forbidden Permutation
https://codeforces.com/problemset/problem/1778/B
[ "greedy", "math" ]
null
null
stdin_stdout
1,300
{ "solved_count": 14691 }
2026-11-02T05:37:07.883505+00:00
codeforces:1778-A
codeforces
1778-A
Flip Flop Sum
https://codeforces.com/problemset/problem/1778/A
[ "greedy", "implementation" ]
null
null
stdin_stdout
800
{ "solved_count": 25988 }
2026-11-02T05:37:07.883505+00:00
codeforces:1777-F
codeforces
1777-F
Comfortably Numb
https://codeforces.com/problemset/problem/1777/F
[ "bitmasks", "data structures", "divide and conquer", "strings", "trees" ]
null
null
stdin_stdout
2,400
{ "solved_count": 1559 }
2026-11-02T05:37:07.883505+00:00
codeforces:1777-E
codeforces
1777-E
Edge Reverse
https://codeforces.com/problemset/problem/1777/E
[ "binary search", "dfs and similar", "graphs", "trees" ]
null
null
stdin_stdout
2,200
{ "solved_count": 2530 }
2026-11-02T05:37:07.883505+00:00
codeforces:1777-D
codeforces
1777-D
Score of a Tree
https://codeforces.com/problemset/problem/1777/D
[ "bitmasks", "combinatorics", "dfs and similar", "dp", "math", "probabilities", "trees" ]
null
null
stdin_stdout
1,900
{ "solved_count": 5072 }
2026-11-02T05:37:07.883505+00:00
codeforces:1777-C
codeforces
1777-C
Quiz Master
https://codeforces.com/problemset/problem/1777/C
[ "binary search", "math", "number theory", "sortings", "two pointers" ]
null
null
stdin_stdout
1,700
{ "solved_count": 13457 }
2026-11-02T05:37:07.883505+00:00
codeforces:1777-B
codeforces
1777-B
Emordnilap
https://codeforces.com/problemset/problem/1777/B
[ "combinatorics", "greedy", "math" ]
null
null
stdin_stdout
900
{ "solved_count": 19617 }
2026-11-02T05:37:07.883505+00:00
codeforces:1777-A
codeforces
1777-A
Everybody Likes Good Arrays!
https://codeforces.com/problemset/problem/1777/A
[ "greedy", "math" ]
null
null
stdin_stdout
800
{ "solved_count": 50771 }
2026-11-02T05:37:07.883505+00:00
codeforces:1776-N
codeforces
1776-N
Count Permutations
https://codeforces.com/problemset/problem/1776/N
[ "math" ]
null
null
stdin_stdout
3,500
{ "solved_count": 108 }
2026-11-02T05:37:07.883505+00:00
codeforces:1776-M
codeforces
1776-M
Parmigiana With Seafood
https://codeforces.com/problemset/problem/1776/M
[ "binary search", "dp", "greedy", "trees" ]
null
null
stdin_stdout
3,000
{ "solved_count": 541 }
2026-11-02T05:37:07.883505+00:00
codeforces:1776-L
codeforces
1776-L
Controllers
https://codeforces.com/problemset/problem/1776/L
[ "binary search", "math" ]
null
null
stdin_stdout
1,500
{ "solved_count": 13258 }
2026-11-02T05:37:07.883505+00:00
codeforces:1776-K
codeforces
1776-K
Uniform Chemistry
https://codeforces.com/problemset/problem/1776/K
[ "dp", "math" ]
null
null
stdin_stdout
3,200
{ "solved_count": 222 }
2026-11-02T05:37:07.883505+00:00
codeforces:1776-J
codeforces
1776-J
Italian Data Centers
https://codeforces.com/problemset/problem/1776/J
[ "graphs", "shortest paths" ]
null
null
stdin_stdout
2,500
{ "solved_count": 948 }
2026-11-02T05:37:07.883505+00:00
codeforces:1776-I
codeforces
1776-I
Spinach Pizza
https://codeforces.com/problemset/problem/1776/I
[ "games", "geometry", "greedy", "interactive" ]
null
null
stdin_stdout
2,500
{ "solved_count": 950 }
2026-11-02T05:37:07.883505+00:00
codeforces:1776-H
codeforces
1776-H
Beppa and SwerChat
https://codeforces.com/problemset/problem/1776/H
[ "two pointers" ]
null
null
stdin_stdout
1,300
{ "solved_count": 7747 }
2026-11-02T05:37:07.883505+00:00
codeforces:1776-G
codeforces
1776-G
Another Wine Tasting Event
https://codeforces.com/problemset/problem/1776/G
[ "combinatorics", "constructive algorithms", "math", "strings" ]
null
null
stdin_stdout
2,100
{ "solved_count": 2509 }
2026-11-02T05:37:07.883505+00:00
codeforces:1776-F
codeforces
1776-F
Train Splitting
https://codeforces.com/problemset/problem/1776/F
[ "constructive algorithms", "graphs", "greedy" ]
null
null
stdin_stdout
1,700
{ "solved_count": 4321 }
2026-11-02T05:37:07.883505+00:00
codeforces:1776-E
codeforces
1776-E
Crossing the Railways
https://codeforces.com/problemset/problem/1776/E
[ "data structures", "dp" ]
null
null
stdin_stdout
3,500
{ "solved_count": 138 }
2026-11-02T05:37:07.883505+00:00
codeforces:1776-D
codeforces
1776-D
Teamwork
https://codeforces.com/problemset/problem/1776/D
[ "constructive algorithms", "greedy", "math" ]
null
null
stdin_stdout
2,800
{ "solved_count": 658 }
2026-11-02T05:37:07.883505+00:00
codeforces:1776-C
codeforces
1776-C
Library game
https://codeforces.com/problemset/problem/1776/C
[ "games", "greedy", "interactive", "sortings" ]
null
null
stdin_stdout
2,500
{ "solved_count": 1022 }
2026-11-02T05:37:07.883505+00:00
codeforces:1776-B
codeforces
1776-B
Vittorio Plays with LEGO Bricks
https://codeforces.com/problemset/problem/1776/B
[ "dp", "geometry" ]
null
null
stdin_stdout
2,200
{ "solved_count": 1615 }
2026-11-02T05:37:07.883505+00:00
codeforces:1776-A
codeforces
1776-A
Walking Boy
https://codeforces.com/problemset/problem/1776/A
[ "greedy" ]
null
null
stdin_stdout
800
{ "solved_count": 8210 }
2026-11-02T05:37:07.883505+00:00
codeforces:1775-F
codeforces
1775-F
Laboratory on Pluto
https://codeforces.com/problemset/problem/1775/F
[ "constructive algorithms", "dp", "greedy", "math" ]
null
null
stdin_stdout
2,500
{ "solved_count": 930 }
2026-11-02T05:37:07.883505+00:00
codeforces:1775-E
codeforces
1775-E
The Human Equation
https://codeforces.com/problemset/problem/1775/E
[ "greedy", "implementation" ]
null
null
stdin_stdout
2,100
{ "solved_count": 4029 }
2026-11-02T05:37:07.883505+00:00
codeforces:1775-D
codeforces
1775-D
Friendly Spiders
https://codeforces.com/problemset/problem/1775/D
[ "dfs and similar", "graphs", "math", "number theory", "shortest paths" ]
null
null
stdin_stdout
1,800
{ "solved_count": 9408 }
2026-11-02T05:37:07.883505+00:00
codeforces:1775-C
codeforces
1775-C
Interesting Sequence
https://codeforces.com/problemset/problem/1775/C
[ "bitmasks", "math" ]
null
null
stdin_stdout
1,600
{ "solved_count": 15459 }
2026-11-02T05:37:07.883505+00:00
codeforces:1775-B
codeforces
1775-B
Gardener and the Array
https://codeforces.com/problemset/problem/1775/B
[ "bitmasks", "constructive algorithms" ]
null
null
stdin_stdout
1,300
{ "solved_count": 22951 }
2026-11-02T05:37:07.883505+00:00
codeforces:1775-A2
codeforces
1775-A2
Gardener and the Capybaras (hard version)
https://codeforces.com/problemset/problem/1775/A2
[ "constructive algorithms", "greedy" ]
null
null
stdin_stdout
900
{ "solved_count": 20208 }
2026-11-02T05:37:07.883505+00:00
codeforces:1775-A1
codeforces
1775-A1
Gardener and the Capybaras (easy version)
https://codeforces.com/problemset/problem/1775/A1
[ "brute force", "constructive algorithms", "implementation" ]
null
null
stdin_stdout
800
{ "solved_count": 20537 }
2026-11-02T05:37:07.883505+00:00
codeforces:1774-H
codeforces
1774-H
Maximum Permutation
https://codeforces.com/problemset/problem/1774/H
[ "constructive algorithms" ]
null
null
stdin_stdout
3,500
{ "solved_count": 164 }
2026-11-02T05:37:07.883505+00:00
codeforces:1774-G
codeforces
1774-G
Segment Covering
https://codeforces.com/problemset/problem/1774/G
[ "brute force", "combinatorics", "constructive algorithms", "data structures", "dp", "trees" ]
null
null
stdin_stdout
3,200
{ "solved_count": 717 }
2026-11-02T05:37:07.883505+00:00
codeforces:1774-F2
codeforces
1774-F2
Magician and Pigs (Hard Version)
https://codeforces.com/problemset/problem/1774/F2
[ "binary search", "brute force", "data structures", "implementation" ]
null
null
stdin_stdout
2,700
{ "solved_count": 952 }
2026-11-02T05:37:07.883505+00:00
codeforces:1774-F1
codeforces
1774-F1
Magician and Pigs (Easy Version)
https://codeforces.com/problemset/problem/1774/F1
[ "brute force", "data structures", "implementation" ]
null
null
stdin_stdout
2,400
{ "solved_count": 1319 }
2026-11-02T05:37:07.883505+00:00
codeforces:1774-E
codeforces
1774-E
Two Chess Pieces
https://codeforces.com/problemset/problem/1774/E
[ "dfs and similar", "dp", "greedy", "trees" ]
null
null
stdin_stdout
1,900
{ "solved_count": 4071 }
2026-11-02T05:37:07.883505+00:00
codeforces:1774-D
codeforces
1774-D
Same Count One
https://codeforces.com/problemset/problem/1774/D
[ "brute force", "constructive algorithms", "greedy", "implementation", "two pointers" ]
null
null
stdin_stdout
1,600
{ "solved_count": 9597 }
2026-11-02T05:37:07.883505+00:00
codeforces:1774-C
codeforces
1774-C
Ice and Fire
https://codeforces.com/problemset/problem/1774/C
[ "constructive algorithms", "dp", "greedy" ]
null
null
stdin_stdout
1,300
{ "solved_count": 13478 }
2026-11-02T05:37:07.883505+00:00
codeforces:1774-B
codeforces
1774-B
Coloring
https://codeforces.com/problemset/problem/1774/B
[ "constructive algorithms", "greedy", "math" ]
null
null
stdin_stdout
1,500
{ "solved_count": 14282 }
2026-11-02T05:37:07.883505+00:00
codeforces:1774-A
codeforces
1774-A
Add Plus Minus Sign
https://codeforces.com/problemset/problem/1774/A
[ "constructive algorithms", "math" ]
null
null
stdin_stdout
800
{ "solved_count": 23844 }
2026-11-02T05:37:07.883505+00:00
codeforces:1773-L
codeforces
1773-L
Lisa's Sequences
https://codeforces.com/problemset/problem/1773/L
[ "dp" ]
null
null
stdin_stdout
3,500
{ "solved_count": 135 }
2026-11-02T05:37:07.883505+00:00
codeforces:1773-K
codeforces
1773-K
King's Puzzle
https://codeforces.com/problemset/problem/1773/K
[ "constructive algorithms" ]
null
null
stdin_stdout
1,900
{ "solved_count": 1744 }
2026-11-02T05:37:07.883505+00:00
codeforces:1773-J
codeforces
1773-J
Jumbled Trees
https://codeforces.com/problemset/problem/1773/J
[ "constructive algorithms", "math" ]
null
null
stdin_stdout
2,900
{ "solved_count": 163 }
2026-11-02T05:37:07.883505+00:00
codeforces:1773-I
codeforces
1773-I
Interactive Factorial Guessing
https://codeforces.com/problemset/problem/1773/I
[ "brute force", "games", "implementation", "interactive" ]
null
null
stdin_stdout
2,500
{ "solved_count": 608 }
2026-11-02T05:37:07.883505+00:00
codeforces:1773-H
codeforces
1773-H
Hot and Cold
https://codeforces.com/problemset/problem/1773/H
[ "binary search", "interactive" ]
null
null
stdin_stdout
2,600
{ "solved_count": 521 }
2026-11-02T05:37:07.883505+00:00
codeforces:1773-G
codeforces
1773-G
Game of Questions
https://codeforces.com/problemset/problem/1773/G
[ "bitmasks", "combinatorics", "dp", "fft", "math", "probabilities" ]
null
null
stdin_stdout
2,800
{ "solved_count": 578 }
2026-11-02T05:37:07.883505+00:00
codeforces:1773-F
codeforces
1773-F
Football
https://codeforces.com/problemset/problem/1773/F
[ "constructive algorithms" ]
null
null
stdin_stdout
800
{ "solved_count": 4997 }
2026-11-02T05:37:07.883505+00:00
codeforces:1773-E
codeforces
1773-E
Easy Assembly
https://codeforces.com/problemset/problem/1773/E
[ "greedy", "sortings" ]
null
null
stdin_stdout
1,400
{ "solved_count": 6234 }
2026-11-02T05:37:07.883505+00:00
codeforces:1773-D
codeforces
1773-D
Dominoes
https://codeforces.com/problemset/problem/1773/D
[ "combinatorics", "flows", "graph matchings", "greedy" ]
null
null
stdin_stdout
2,600
{ "solved_count": 666 }
2026-11-02T05:37:07.883505+00:00
codeforces:1773-C
codeforces
1773-C
Cactus Meets Torus
https://codeforces.com/problemset/problem/1773/C
[]
null
null
stdin_stdout
3,500
{ "solved_count": 87 }
2026-11-02T05:37:07.883505+00:00
codeforces:1773-B
codeforces
1773-B
BinCoin
https://codeforces.com/problemset/problem/1773/B
[ "binary search", "divide and conquer", "hashing", "implementation", "probabilities", "trees" ]
null
null
stdin_stdout
2,200
{ "solved_count": 1018 }
2026-11-02T05:37:07.883505+00:00
codeforces:1773-A
codeforces
1773-A
Amazing Trick
https://codeforces.com/problemset/problem/1773/A
[ "constructive algorithms", "graph matchings", "math", "probabilities" ]
null
null
stdin_stdout
1,900
{ "solved_count": 2025 }
2026-11-02T05:37:07.883505+00:00
codeforces:1772-G
codeforces
1772-G
Gaining Rating
https://codeforces.com/problemset/problem/1772/G
[ "binary search", "greedy", "implementation", "math", "sortings", "two pointers" ]
null
null
stdin_stdout
2,200
{ "solved_count": 1668 }
2026-11-02T05:37:07.883505+00:00
codeforces:1772-F
codeforces
1772-F
Copy of a Copy of a Copy
https://codeforces.com/problemset/problem/1772/F
[ "constructive algorithms", "dfs and similar", "graphs", "implementation", "sortings" ]
null
null
stdin_stdout
2,000
{ "solved_count": 2937 }
2026-11-02T05:37:07.883505+00:00
codeforces:1772-E
codeforces
1772-E
Permutation Game
https://codeforces.com/problemset/problem/1772/E
[ "games" ]
null
null
stdin_stdout
1,700
{ "solved_count": 7852 }
2026-11-02T05:37:07.883505+00:00
codeforces:1772-D
codeforces
1772-D
Absolute Sorting
https://codeforces.com/problemset/problem/1772/D
[ "constructive algorithms", "math" ]
null
null
stdin_stdout
1,400
{ "solved_count": 19270 }
2026-11-02T05:37:07.883505+00:00
codeforces:1772-C
codeforces
1772-C
Different Differences
https://codeforces.com/problemset/problem/1772/C
[ "constructive algorithms", "greedy", "math" ]
null
null
stdin_stdout
1,000
{ "solved_count": 26701 }
2026-11-02T05:37:07.883505+00:00
codeforces:1772-B
codeforces
1772-B
Matrix Rotation
https://codeforces.com/problemset/problem/1772/B
[ "brute force", "implementation" ]
null
null
stdin_stdout
800
{ "solved_count": 33703 }
2026-11-02T05:37:07.883505+00:00
codeforces:1772-A
codeforces
1772-A
A+B?
https://codeforces.com/problemset/problem/1772/A
[ "implementation" ]
null
null
stdin_stdout
800
{ "solved_count": 63432 }
2026-11-02T05:37:07.883505+00:00
codeforces:1771-F
codeforces
1771-F
Hossam and Range Minimum Query
https://codeforces.com/problemset/problem/1771/F
[ "binary search", "bitmasks", "data structures", "hashing", "probabilities", "strings", "trees" ]
null
null
stdin_stdout
2,500
{ "solved_count": 1809 }
2026-11-02T05:37:07.883505+00:00
codeforces:1771-E
codeforces
1771-E
Hossam and a Letter
https://codeforces.com/problemset/problem/1771/E
[ "brute force", "dp", "implementation", "two pointers" ]
null
null
stdin_stdout
2,500
{ "solved_count": 864 }
2026-11-02T05:37:07.883505+00:00
codeforces:1771-D
codeforces
1771-D
Hossam and (sub-)palindromic tree
https://codeforces.com/problemset/problem/1771/D
[ "brute force", "data structures", "dfs and similar", "dp", "strings", "trees" ]
null
null
stdin_stdout
2,100
{ "solved_count": 3359 }
2026-11-02T05:37:07.883505+00:00
codeforces:1771-C
codeforces
1771-C
Hossam and Trainees
https://codeforces.com/problemset/problem/1771/C
[ "greedy", "math", "number theory" ]
null
null
stdin_stdout
1,600
{ "solved_count": 12138 }
2026-11-02T05:37:07.883505+00:00
codeforces:1771-B
codeforces
1771-B
Hossam and Friends
https://codeforces.com/problemset/problem/1771/B
[ "binary search", "constructive algorithms", "dp", "two pointers" ]
null
null
stdin_stdout
1,400
{ "solved_count": 23642 }
2026-11-02T05:37:07.883505+00:00
codeforces:1771-A
codeforces
1771-A
Hossam and Combinatorics
https://codeforces.com/problemset/problem/1771/A
[ "combinatorics", "math", "sortings" ]
null
null
stdin_stdout
900
{ "solved_count": 25920 }
2026-11-02T05:37:07.883505+00:00
codeforces:1770-H
codeforces
1770-H
Koxia, Mahiru and Winter Festival
https://codeforces.com/problemset/problem/1770/H
[ "constructive algorithms" ]
null
null
stdin_stdout
3,500
{ "solved_count": 179 }
2026-11-02T05:37:07.883505+00:00
codeforces:1770-G
codeforces
1770-G
Koxia and Bracket
https://codeforces.com/problemset/problem/1770/G
[ "divide and conquer", "fft", "math" ]
null
null
stdin_stdout
3,400
{ "solved_count": 198 }
2026-11-02T05:37:07.883505+00:00
codeforces:1770-F
codeforces
1770-F
Koxia and Sequence
https://codeforces.com/problemset/problem/1770/F
[ "bitmasks", "combinatorics", "dp", "math", "number theory" ]
null
null
stdin_stdout
3,100
{ "solved_count": 1118 }
2026-11-02T05:37:07.883505+00:00
codeforces:1770-E
codeforces
1770-E
Koxia and Tree
https://codeforces.com/problemset/problem/1770/E
[ "combinatorics", "dfs and similar", "dp", "dsu", "math", "probabilities", "trees" ]
null
null
stdin_stdout
2,400
{ "solved_count": 1669 }
2026-11-02T05:37:07.883505+00:00
codeforces:1770-D
codeforces
1770-D
Koxia and Game
https://codeforces.com/problemset/problem/1770/D
[ "constructive algorithms", "data structures", "dfs and similar", "dsu", "flows", "games", "graph matchings", "graphs", "implementation" ]
null
null
stdin_stdout
2,000
{ "solved_count": 4548 }
2026-11-02T05:37:07.883505+00:00
codeforces:1770-C
codeforces
1770-C
Koxia and Number Theory
https://codeforces.com/problemset/problem/1770/C
[ "brute force", "chinese remainder theorem", "math", "number theory" ]
null
null
stdin_stdout
1,700
{ "solved_count": 9877 }
2026-11-02T05:37:07.883505+00:00
codeforces:1770-B
codeforces
1770-B
Koxia and Permutation
https://codeforces.com/problemset/problem/1770/B
[ "constructive algorithms" ]
null
null
stdin_stdout
1,000
{ "solved_count": 21105 }
2026-11-02T05:37:07.883505+00:00
codeforces:1770-A
codeforces
1770-A
Koxia and Whiteboards
https://codeforces.com/problemset/problem/1770/A
[ "brute force", "greedy" ]
null
null
stdin_stdout
1,000
{ "solved_count": 25620 }
2026-11-02T05:37:07.883505+00:00
codeforces:1769-D3
codeforces
1769-D3
Игра в Девятку III
https://codeforces.com/problemset/problem/1769/D3
[ "*special", "brute force" ]
null
null
stdin_stdout
2,300
{ "solved_count": 130 }
2026-11-02T05:37:07.883505+00:00
codeforces:1769-D2
codeforces
1769-D2
Игра в Девятку II
https://codeforces.com/problemset/problem/1769/D2
[ "*special", "brute force" ]
null
null
stdin_stdout
2,200
{ "solved_count": 215 }
2026-11-02T05:37:07.883505+00:00
codeforces:1769-D1
codeforces
1769-D1
Игра в Девятку I
https://codeforces.com/problemset/problem/1769/D1
[ "*special", "brute force", "dp" ]
null
null
stdin_stdout
1,800
{ "solved_count": 427 }
2026-11-02T05:37:07.883505+00:00
codeforces:1769-C2
codeforces
1769-C2
Подкрутка II
https://codeforces.com/problemset/problem/1769/C2
[ "*special", "dp" ]
null
null
stdin_stdout
1,300
{ "solved_count": 1098 }
2026-11-02T05:37:07.883505+00:00
codeforces:1769-C1
codeforces
1769-C1
Подкрутка I
https://codeforces.com/problemset/problem/1769/C1
[ "*special", "brute force", "dp", "greedy" ]
null
null
stdin_stdout
1,200
{ "solved_count": 1134 }
2026-11-02T05:37:07.883505+00:00
codeforces:1769-B2
codeforces
1769-B2
Копирование файлов II
https://codeforces.com/problemset/problem/1769/B2
[ "*special", "binary search", "brute force", "math" ]
null
null
stdin_stdout
1,400
{ "solved_count": 964 }
2026-11-02T05:37:07.883505+00:00
codeforces:1769-B1
codeforces
1769-B1
Копирование файлов I
https://codeforces.com/problemset/problem/1769/B1
[ "*special", "brute force", "implementation", "math" ]
null
null
stdin_stdout
1,000
{ "solved_count": 1641 }
2026-11-02T05:37:07.883505+00:00
codeforces:1769-A
codeforces
1769-A
Узкая дорога
https://codeforces.com/problemset/problem/1769/A
[ "*special", "math" ]
null
null
stdin_stdout
800
{ "solved_count": 2196 }
2026-11-02T05:37:07.883505+00:00
codeforces:1768-F
codeforces
1768-F
Wonderful Jump
https://codeforces.com/problemset/problem/1768/F
[ "dp", "greedy" ]
null
null
stdin_stdout
2,900
{ "solved_count": 1497 }
2026-11-02T05:37:07.883505+00:00
codeforces:1768-E
codeforces
1768-E
Partial Sorting
https://codeforces.com/problemset/problem/1768/E
[ "combinatorics", "math", "number theory" ]
null
null
stdin_stdout
2,300
{ "solved_count": 2397 }
2026-11-02T05:37:07.883505+00:00
codeforces:1768-D
codeforces
1768-D
Lucky Permutation
https://codeforces.com/problemset/problem/1768/D
[ "constructive algorithms", "dfs and similar", "graphs", "greedy" ]
null
null
stdin_stdout
1,800
{ "solved_count": 9552 }
2026-11-02T05:37:07.883505+00:00
codeforces:1768-C
codeforces
1768-C
Elemental Decompress
https://codeforces.com/problemset/problem/1768/C
[ "constructive algorithms", "greedy", "implementation", "sortings" ]
null
null
stdin_stdout
1,300
{ "solved_count": 15954 }
2026-11-02T05:37:07.883505+00:00
codeforces:1768-B
codeforces
1768-B
Quick Sort
https://codeforces.com/problemset/problem/1768/B
[ "greedy", "math" ]
null
null
stdin_stdout
900
{ "solved_count": 26185 }
2026-11-02T05:37:07.883505+00:00
codeforces:1768-A
codeforces
1768-A
Greatest Convex
https://codeforces.com/problemset/problem/1768/A
[ "greedy", "math", "number theory" ]
null
null
stdin_stdout
800
{ "solved_count": 31359 }
2026-11-02T05:37:07.883505+00:00
codeforces:1767-F
codeforces
1767-F
Two Subtrees
https://codeforces.com/problemset/problem/1767/F
[ "data structures", "trees" ]
null
null
stdin_stdout
3,100
{ "solved_count": 500 }
2026-11-02T05:37:07.883505+00:00
codeforces:1767-E
codeforces
1767-E
Algebra Flash
https://codeforces.com/problemset/problem/1767/E
[ "bitmasks", "brute force", "dp", "graphs", "math", "meet-in-the-middle", "trees" ]
null
null
stdin_stdout
2,500
{ "solved_count": 1357 }
2026-11-02T05:37:07.883505+00:00