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codeforces:1882-D
codeforces
1882-D
Tree XOR
https://codeforces.com/problemset/problem/1882/D
[ "bitmasks", "dfs and similar", "dp", "greedy", "trees" ]
null
null
stdin_stdout
1,900
{ "solved_count": 7577 }
2026-11-02T05:37:07.883505+00:00
codeforces:1882-C
codeforces
1882-C
Card Game
https://codeforces.com/problemset/problem/1882/C
[ "brute force", "greedy" ]
null
null
stdin_stdout
1,500
{ "solved_count": 14757 }
2026-11-02T05:37:07.883505+00:00
codeforces:1882-B
codeforces
1882-B
Sets and Union
https://codeforces.com/problemset/problem/1882/B
[ "bitmasks", "brute force", "constructive algorithms", "greedy" ]
null
null
stdin_stdout
1,300
{ "solved_count": 17787 }
2026-11-02T05:37:07.883505+00:00
codeforces:1882-A
codeforces
1882-A
Increasing Sequence
https://codeforces.com/problemset/problem/1882/A
[ "greedy" ]
null
null
stdin_stdout
800
{ "solved_count": 27559 }
2026-11-02T05:37:07.883505+00:00
codeforces:1881-G
codeforces
1881-G
Anya and the Mysterious String
https://codeforces.com/problemset/problem/1881/G
[ "binary search", "data structures" ]
null
null
stdin_stdout
2,000
{ "solved_count": 3076 }
2026-11-02T05:37:07.883505+00:00
codeforces:1881-F
codeforces
1881-F
Minimum Maximum Distance
https://codeforces.com/problemset/problem/1881/F
[ "dfs and similar", "dp", "graphs", "shortest paths", "trees" ]
null
null
stdin_stdout
1,700
{ "solved_count": 10292 }
2026-11-02T05:37:07.883505+00:00
codeforces:1881-E
codeforces
1881-E
Block Sequence
https://codeforces.com/problemset/problem/1881/E
[ "dp" ]
null
null
stdin_stdout
1,500
{ "solved_count": 26914 }
2026-11-02T05:37:07.883505+00:00
codeforces:1881-D
codeforces
1881-D
Divide and Equalize
https://codeforces.com/problemset/problem/1881/D
[ "math", "number theory" ]
null
null
stdin_stdout
1,300
{ "solved_count": 32009 }
2026-11-02T05:37:07.883505+00:00
codeforces:1881-C
codeforces
1881-C
Perfect Square
https://codeforces.com/problemset/problem/1881/C
[ "brute force", "implementation" ]
null
null
stdin_stdout
1,200
{ "solved_count": 19976 }
2026-11-02T05:37:07.883505+00:00
codeforces:1881-B
codeforces
1881-B
Three Threadlets
https://codeforces.com/problemset/problem/1881/B
[ "math" ]
null
null
stdin_stdout
900
{ "solved_count": 29368 }
2026-11-02T05:37:07.883505+00:00
codeforces:1881-A
codeforces
1881-A
Don't Try to Count
https://codeforces.com/problemset/problem/1881/A
[ "brute force", "strings" ]
null
null
stdin_stdout
800
{ "solved_count": 69461 }
2026-11-02T05:37:07.883505+00:00
codeforces:1879-F
codeforces
1879-F
Last Man Standing
https://codeforces.com/problemset/problem/1879/F
[ "brute force", "data structures", "number theory" ]
null
null
stdin_stdout
2,800
{ "solved_count": 678 }
2026-11-02T05:37:07.883505+00:00
codeforces:1879-E
codeforces
1879-E
Interactive Game with Coloring
https://codeforces.com/problemset/problem/1879/E
[ "brute force", "constructive algorithms", "dfs and similar", "graphs", "implementation", "interactive", "trees" ]
null
null
stdin_stdout
2,400
{ "solved_count": 1651 }
2026-11-02T05:37:07.883505+00:00
codeforces:1879-D
codeforces
1879-D
Sum of XOR Functions
https://codeforces.com/problemset/problem/1879/D
[ "bitmasks", "combinatorics", "divide and conquer", "dp", "math" ]
null
null
stdin_stdout
1,700
{ "solved_count": 11553 }
2026-11-02T05:37:07.883505+00:00
codeforces:1879-C
codeforces
1879-C
Make it Alternating
https://codeforces.com/problemset/problem/1879/C
[ "combinatorics", "dp", "greedy" ]
null
null
stdin_stdout
1,300
{ "solved_count": 30380 }
2026-11-02T05:37:07.883505+00:00
codeforces:1879-B
codeforces
1879-B
Chips on the Board
https://codeforces.com/problemset/problem/1879/B
[ "constructive algorithms", "greedy" ]
null
null
stdin_stdout
900
{ "solved_count": 25583 }
2026-11-02T05:37:07.883505+00:00
codeforces:1879-A
codeforces
1879-A
Rigged!
https://codeforces.com/problemset/problem/1879/A
[ "greedy" ]
null
null
stdin_stdout
800
{ "solved_count": 24797 }
2026-11-02T05:37:07.883505+00:00
codeforces:1878-G
codeforces
1878-G
wxhtzdy ORO Tree
https://codeforces.com/problemset/problem/1878/G
[ "binary search", "bitmasks", "brute force", "data structures", "dfs and similar", "implementation", "trees" ]
null
null
stdin_stdout
2,300
{ "solved_count": 1538 }
2026-11-02T05:37:07.883505+00:00
codeforces:1878-F
codeforces
1878-F
Vasilije Loves Number Theory
https://codeforces.com/problemset/problem/1878/F
[ "brute force", "math", "number theory" ]
null
null
stdin_stdout
1,900
{ "solved_count": 5087 }
2026-11-02T05:37:07.883505+00:00
codeforces:1878-E
codeforces
1878-E
Iva & Pav
https://codeforces.com/problemset/problem/1878/E
[ "binary search", "bitmasks", "data structures", "greedy" ]
null
null
stdin_stdout
1,400
{ "solved_count": 23579 }
2026-11-02T05:37:07.883505+00:00
codeforces:1878-D
codeforces
1878-D
Reverse Madness
https://codeforces.com/problemset/problem/1878/D
[ "data structures", "greedy" ]
null
null
stdin_stdout
1,600
{ "solved_count": 10392 }
2026-11-02T05:37:07.883505+00:00
codeforces:1878-C
codeforces
1878-C
Vasilije in Cacak
https://codeforces.com/problemset/problem/1878/C
[ "math" ]
null
null
stdin_stdout
900
{ "solved_count": 65972 }
2026-11-02T05:37:07.883505+00:00
codeforces:1878-B
codeforces
1878-B
Aleksa and Stack
https://codeforces.com/problemset/problem/1878/B
[ "constructive algorithms", "math" ]
null
null
stdin_stdout
800
{ "solved_count": 34744 }
2026-11-02T05:37:07.883505+00:00
codeforces:1878-A
codeforces
1878-A
How Much Does Daytona Cost?
https://codeforces.com/problemset/problem/1878/A
[ "greedy" ]
null
null
stdin_stdout
800
{ "solved_count": 90461 }
2026-11-02T05:37:07.883505+00:00
codeforces:1877-C
codeforces
1877-C
Joyboard
https://codeforces.com/problemset/problem/1877/C
[ "math", "number theory" ]
null
null
stdin_stdout
1,200
{ "solved_count": 13306 }
2026-11-02T05:37:07.883505+00:00
codeforces:1877-A
codeforces
1877-A
Goals of Victory
https://codeforces.com/problemset/problem/1877/A
[ "math" ]
null
null
stdin_stdout
800
{ "solved_count": 62094 }
2026-11-02T05:37:07.883505+00:00
codeforces:1876-G
codeforces
1876-G
Clubstep
https://codeforces.com/problemset/problem/1876/G
[ "binary search", "brute force", "data structures", "greedy", "trees" ]
null
null
stdin_stdout
3,500
{ "solved_count": 320 }
2026-11-02T05:37:07.883505+00:00
codeforces:1876-F
codeforces
1876-F
Indefinite Clownfish
https://codeforces.com/problemset/problem/1876/F
[ "binary search", "graphs" ]
null
null
stdin_stdout
3,500
{ "solved_count": 249 }
2026-11-02T05:37:07.883505+00:00
codeforces:1876-E
codeforces
1876-E
Ball-Stackable
https://codeforces.com/problemset/problem/1876/E
[ "constructive algorithms", "data structures", "dp", "trees" ]
null
null
stdin_stdout
3,300
{ "solved_count": 379 }
2026-11-02T05:37:07.883505+00:00
codeforces:1876-D
codeforces
1876-D
Lexichromatography
https://codeforces.com/problemset/problem/1876/D
[ "combinatorics", "dfs and similar", "dsu", "graphs", "two pointers" ]
null
null
stdin_stdout
2,500
{ "solved_count": 1117 }
2026-11-02T05:37:07.883505+00:00
codeforces:1876-C
codeforces
1876-C
Autosynthesis
https://codeforces.com/problemset/problem/1876/C
[ "constructive algorithms", "dfs and similar", "graphs", "greedy", "sortings" ]
null
null
stdin_stdout
2,100
{ "solved_count": 2905 }
2026-11-02T05:37:07.883505+00:00
codeforces:1876-B
codeforces
1876-B
Effects of Anti Pimples
https://codeforces.com/problemset/problem/1876/B
[ "combinatorics", "number theory", "sortings" ]
null
null
stdin_stdout
1,500
{ "solved_count": 10403 }
2026-11-02T05:37:07.883505+00:00
codeforces:1876-A
codeforces
1876-A
Helmets in Night Light
https://codeforces.com/problemset/problem/1876/A
[ "greedy", "sortings" ]
null
null
stdin_stdout
1,000
{ "solved_count": 40995 }
2026-11-02T05:37:07.883505+00:00
codeforces:1875-D
codeforces
1875-D
Jellyfish and Mex
https://codeforces.com/problemset/problem/1875/D
[ "dp" ]
null
null
stdin_stdout
1,600
{ "solved_count": 11998 }
2026-11-02T05:37:07.883505+00:00
codeforces:1875-C
codeforces
1875-C
Jellyfish and Green Apple
https://codeforces.com/problemset/problem/1875/C
[ "bitmasks", "greedy", "math", "number theory" ]
null
null
stdin_stdout
1,400
{ "solved_count": 14239 }
2026-11-02T05:37:07.883505+00:00
codeforces:1875-A
codeforces
1875-A
Jellyfish and Undertale
https://codeforces.com/problemset/problem/1875/A
[ "brute force", "greedy" ]
null
null
stdin_stdout
900
{ "solved_count": 54264 }
2026-11-02T05:37:07.883505+00:00
codeforces:1874-G
codeforces
1874-G
Jellyfish and Inscryption
https://codeforces.com/problemset/problem/1874/G
[ "dp" ]
null
null
stdin_stdout
3,500
{ "solved_count": 173 }
2026-11-02T05:37:07.883505+00:00
codeforces:1874-F
codeforces
1874-F
Jellyfish and OEIS
https://codeforces.com/problemset/problem/1874/F
[ "dp" ]
null
null
stdin_stdout
3,500
{ "solved_count": 523 }
2026-11-02T05:37:07.883505+00:00
codeforces:1874-E
codeforces
1874-E
Jellyfish and Hack
https://codeforces.com/problemset/problem/1874/E
[ "dp", "math" ]
null
null
stdin_stdout
3,000
{ "solved_count": 812 }
2026-11-02T05:37:07.883505+00:00
codeforces:1874-D
codeforces
1874-D
Jellyfish and Miku
https://codeforces.com/problemset/problem/1874/D
[ "divide and conquer", "dp", "math", "probabilities" ]
null
null
stdin_stdout
2,800
{ "solved_count": 1054 }
2026-11-02T05:37:07.883505+00:00
codeforces:1874-C
codeforces
1874-C
Jellyfish and EVA
https://codeforces.com/problemset/problem/1874/C
[ "dp", "graphs", "greedy", "math", "probabilities" ]
null
null
stdin_stdout
2,300
{ "solved_count": 2279 }
2026-11-02T05:37:07.883505+00:00
codeforces:1874-B
codeforces
1874-B
Jellyfish and Math
https://codeforces.com/problemset/problem/1874/B
[ "bitmasks", "brute force", "dfs and similar", "dp", "graphs", "shortest paths" ]
null
null
stdin_stdout
2,400
{ "solved_count": 1464 }
2026-11-02T05:37:07.883505+00:00
codeforces:1874-A
codeforces
1874-A
Jellyfish and Game
https://codeforces.com/problemset/problem/1874/A
[ "brute force", "games", "greedy", "implementation" ]
null
null
stdin_stdout
1,200
{ "solved_count": 19893 }
2026-11-02T05:37:07.883505+00:00
codeforces:1873-H
codeforces
1873-H
Mad City
https://codeforces.com/problemset/problem/1873/H
[ "dfs and similar", "dsu", "games", "graphs", "shortest paths", "trees" ]
null
null
stdin_stdout
1,700
{ "solved_count": 9967 }
2026-11-02T05:37:07.883505+00:00
codeforces:1873-G
codeforces
1873-G
ABBC or BACB
https://codeforces.com/problemset/problem/1873/G
[ "constructive algorithms", "greedy" ]
null
null
stdin_stdout
1,500
{ "solved_count": 17631 }
2026-11-02T05:37:07.883505+00:00
codeforces:1873-F
codeforces
1873-F
Money Trees
https://codeforces.com/problemset/problem/1873/F
[ "binary search", "greedy", "math", "two pointers" ]
null
null
stdin_stdout
1,300
{ "solved_count": 20878 }
2026-11-02T05:37:07.883505+00:00
codeforces:1873-E
codeforces
1873-E
Building an Aquarium
https://codeforces.com/problemset/problem/1873/E
[ "binary search", "sortings" ]
null
null
stdin_stdout
1,100
{ "solved_count": 49470 }
2026-11-02T05:37:07.883505+00:00
codeforces:1873-D
codeforces
1873-D
1D Eraser
https://codeforces.com/problemset/problem/1873/D
[ "greedy", "implementation", "two pointers" ]
null
null
stdin_stdout
800
{ "solved_count": 45075 }
2026-11-02T05:37:07.883505+00:00
codeforces:1873-C
codeforces
1873-C
Target Practice
https://codeforces.com/problemset/problem/1873/C
[ "implementation", "math" ]
null
null
stdin_stdout
800
{ "solved_count": 80083 }
2026-11-02T05:37:07.883505+00:00
codeforces:1873-B
codeforces
1873-B
Good Kid
https://codeforces.com/problemset/problem/1873/B
[ "brute force", "greedy", "math" ]
null
null
stdin_stdout
800
{ "solved_count": 65778 }
2026-11-02T05:37:07.883505+00:00
codeforces:1873-A
codeforces
1873-A
Short Sort
https://codeforces.com/problemset/problem/1873/A
[ "brute force", "implementation" ]
null
null
stdin_stdout
800
{ "solved_count": 75453 }
2026-11-02T05:37:07.883505+00:00
codeforces:1872-G
codeforces
1872-G
Replace With Product
https://codeforces.com/problemset/problem/1872/G
[ "brute force", "greedy", "math" ]
null
null
stdin_stdout
2,000
{ "solved_count": 5234 }
2026-11-02T05:37:07.883505+00:00
codeforces:1872-F
codeforces
1872-F
Selling a Menagerie
https://codeforces.com/problemset/problem/1872/F
[ "dfs and similar", "dsu", "graphs", "implementation", "math" ]
null
null
stdin_stdout
1,800
{ "solved_count": 7853 }
2026-11-02T05:37:07.883505+00:00
codeforces:1872-E
codeforces
1872-E
Data Structures Fan
https://codeforces.com/problemset/problem/1872/E
[ "binary search", "bitmasks", "data structures", "dp" ]
null
null
stdin_stdout
1,500
{ "solved_count": 23720 }
2026-11-02T05:37:07.883505+00:00
codeforces:1872-D
codeforces
1872-D
Plus Minus Permutation
https://codeforces.com/problemset/problem/1872/D
[ "math" ]
null
null
stdin_stdout
1,200
{ "solved_count": 43661 }
2026-11-02T05:37:07.883505+00:00
codeforces:1872-C
codeforces
1872-C
Non-coprime Split
https://codeforces.com/problemset/problem/1872/C
[ "math", "number theory" ]
null
null
stdin_stdout
1,100
{ "solved_count": 27093 }
2026-11-02T05:37:07.883505+00:00
codeforces:1872-B
codeforces
1872-B
The Corridor or There and Back Again
https://codeforces.com/problemset/problem/1872/B
[ "greedy", "implementation" ]
null
null
stdin_stdout
900
{ "solved_count": 30964 }
2026-11-02T05:37:07.883505+00:00
codeforces:1872-A
codeforces
1872-A
Two Vessels
https://codeforces.com/problemset/problem/1872/A
[ "brute force", "greedy", "math" ]
null
null
stdin_stdout
800
{ "solved_count": 44092 }
2026-11-02T05:37:07.883505+00:00
codeforces:1870-H
codeforces
1870-H
Standard Graph Problem
https://codeforces.com/problemset/problem/1870/H
[ "data structures", "graphs", "greedy", "trees" ]
null
null
stdin_stdout
3,500
{ "solved_count": 131 }
2026-11-02T05:37:07.883505+00:00
codeforces:1870-G
codeforces
1870-G
MEXanization
https://codeforces.com/problemset/problem/1870/G
[ "data structures" ]
null
null
stdin_stdout
3,300
{ "solved_count": 440 }
2026-11-02T05:37:07.883505+00:00
codeforces:1870-F
codeforces
1870-F
Lazy Numbers
https://codeforces.com/problemset/problem/1870/F
[ "binary search", "math" ]
null
null
stdin_stdout
2,900
{ "solved_count": 588 }
2026-11-02T05:37:07.883505+00:00
codeforces:1870-E
codeforces
1870-E
Another MEX Problem
https://codeforces.com/problemset/problem/1870/E
[ "bitmasks", "brute force", "dp", "shortest paths" ]
null
null
stdin_stdout
2,300
{ "solved_count": 3144 }
2026-11-02T05:37:07.883505+00:00
codeforces:1870-D
codeforces
1870-D
Prefix Purchase
https://codeforces.com/problemset/problem/1870/D
[ "greedy", "implementation", "sortings" ]
null
null
stdin_stdout
1,800
{ "solved_count": 8263 }
2026-11-02T05:37:07.883505+00:00
codeforces:1870-C
codeforces
1870-C
Colorful Table
https://codeforces.com/problemset/problem/1870/C
[ "binary search", "data structures", "dp", "implementation", "math", "two pointers" ]
null
null
stdin_stdout
1,300
{ "solved_count": 13492 }
2026-11-02T05:37:07.883505+00:00
codeforces:1870-B
codeforces
1870-B
Friendly Arrays
https://codeforces.com/problemset/problem/1870/B
[ "bitmasks", "greedy", "math" ]
null
null
stdin_stdout
1,200
{ "solved_count": 16771 }
2026-11-02T05:37:07.883505+00:00
codeforces:1870-A
codeforces
1870-A
MEXanized Array
https://codeforces.com/problemset/problem/1870/A
[ "constructive algorithms", "greedy", "math" ]
null
null
stdin_stdout
800
{ "solved_count": 20445 }
2026-11-02T05:37:07.883505+00:00
codeforces:1869-B
codeforces
1869-B
2D Traveling
https://codeforces.com/problemset/problem/1869/B
[ "geometry", "math", "shortest paths", "sortings" ]
null
null
stdin_stdout
1,100
{ "solved_count": 28976 }
2026-11-02T05:37:07.883505+00:00
codeforces:1869-A
codeforces
1869-A
Make It Zero
https://codeforces.com/problemset/problem/1869/A
[ "constructive algorithms" ]
null
null
stdin_stdout
900
{ "solved_count": 46030 }
2026-11-02T05:37:07.883505+00:00
codeforces:1868-F
codeforces
1868-F
LIS?
https://codeforces.com/problemset/problem/1868/F
[ "data structures", "greedy", "implementation" ]
null
null
stdin_stdout
3,500
{ "solved_count": 145 }
2026-11-02T05:37:07.883505+00:00
codeforces:1868-E
codeforces
1868-E
Min-Sum-Max
https://codeforces.com/problemset/problem/1868/E
[ "constructive algorithms", "dp", "greedy" ]
null
null
stdin_stdout
3,500
{ "solved_count": 135 }
2026-11-02T05:37:07.883505+00:00
codeforces:1868-D
codeforces
1868-D
Flower-like Pseudotree
https://codeforces.com/problemset/problem/1868/D
[ "constructive algorithms", "graphs", "greedy", "implementation", "trees" ]
null
null
stdin_stdout
3,000
{ "solved_count": 445 }
2026-11-02T05:37:07.883505+00:00
codeforces:1868-C
codeforces
1868-C
Travel Plan
https://codeforces.com/problemset/problem/1868/C
[ "combinatorics", "dp", "implementation", "math", "trees" ]
null
null
stdin_stdout
2,400
{ "solved_count": 1426 }
2026-11-02T05:37:07.883505+00:00
codeforces:1868-B2
codeforces
1868-B2
Candy Party (Hard Version)
https://codeforces.com/problemset/problem/1868/B2
[ "bitmasks", "constructive algorithms", "dp", "greedy", "implementation", "math" ]
null
null
stdin_stdout
2,100
{ "solved_count": 2835 }
2026-11-02T05:37:07.883505+00:00
codeforces:1868-B1
codeforces
1868-B1
Candy Party (Easy Version)
https://codeforces.com/problemset/problem/1868/B1
[ "bitmasks", "constructive algorithms", "graphs", "greedy", "implementation", "math" ]
null
null
stdin_stdout
1,700
{ "solved_count": 8532 }
2026-11-02T05:37:07.883505+00:00
codeforces:1868-A
codeforces
1868-A
Fill in the Matrix
https://codeforces.com/problemset/problem/1868/A
[ "constructive algorithms", "implementation" ]
null
null
stdin_stdout
1,300
{ "solved_count": 13912 }
2026-11-02T05:37:07.883505+00:00
codeforces:1867-F
codeforces
1867-F
Most Different Tree
https://codeforces.com/problemset/problem/1867/F
[ "brute force", "constructive algorithms", "dfs and similar", "greedy", "hashing" ]
null
null
stdin_stdout
2,700
{ "solved_count": 628 }
2026-11-02T05:37:07.883505+00:00
codeforces:1867-E2
codeforces
1867-E2
Salyg1n and Array (hard version)
https://codeforces.com/problemset/problem/1867/E2
[ "constructive algorithms", "interactive" ]
null
null
stdin_stdout
2,200
{ "solved_count": 3867 }
2026-11-02T05:37:07.883505+00:00
codeforces:1867-E1
codeforces
1867-E1
Salyg1n and Array (simple version)
https://codeforces.com/problemset/problem/1867/E1
[ "constructive algorithms", "interactive", "math" ]
null
null
stdin_stdout
2,000
{ "solved_count": 4471 }
2026-11-02T05:37:07.883505+00:00
codeforces:1867-D
codeforces
1867-D
Cyclic Operations
https://codeforces.com/problemset/problem/1867/D
[ "brute force", "constructive algorithms", "dfs and similar", "graphs", "greedy", "implementation" ]
null
null
stdin_stdout
1,800
{ "solved_count": 7053 }
2026-11-02T05:37:07.883505+00:00
codeforces:1867-C
codeforces
1867-C
Salyg1n and the MEX Game
https://codeforces.com/problemset/problem/1867/C
[ "constructive algorithms", "data structures", "games", "greedy", "interactive" ]
null
null
stdin_stdout
1,300
{ "solved_count": 12909 }
2026-11-02T05:37:07.883505+00:00
codeforces:1867-B
codeforces
1867-B
XOR Palindromes
https://codeforces.com/problemset/problem/1867/B
[ "bitmasks", "constructive algorithms", "strings" ]
null
null
stdin_stdout
1,100
{ "solved_count": 18909 }
2026-11-02T05:37:07.883505+00:00
codeforces:1867-A
codeforces
1867-A
green_gold_dog, array and permutation
https://codeforces.com/problemset/problem/1867/A
[ "constructive algorithms", "sortings" ]
null
null
stdin_stdout
800
{ "solved_count": 21276 }
2026-11-02T05:37:07.883505+00:00
codeforces:1866-M
codeforces
1866-M
Mighty Rock Tower
https://codeforces.com/problemset/problem/1866/M
[ "brute force", "combinatorics", "dp", "math", "probabilities" ]
null
null
stdin_stdout
2,400
{ "solved_count": 1034 }
2026-11-02T05:37:07.883505+00:00
codeforces:1866-L
codeforces
1866-L
Lihmuf Balling
https://codeforces.com/problemset/problem/1866/L
[ "binary search", "brute force", "math" ]
null
null
stdin_stdout
2,400
{ "solved_count": 921 }
2026-11-02T05:37:07.883505+00:00
codeforces:1866-K
codeforces
1866-K
Keen Tree Calculation
https://codeforces.com/problemset/problem/1866/K
[ "binary search", "data structures", "dp", "geometry", "graphs", "implementation", "trees" ]
null
null
stdin_stdout
2,500
{ "solved_count": 604 }
2026-11-02T05:37:07.883505+00:00
codeforces:1866-J
codeforces
1866-J
Jackets and Packets
https://codeforces.com/problemset/problem/1866/J
[ "dp" ]
null
null
stdin_stdout
2,800
{ "solved_count": 456 }
2026-11-02T05:37:07.883505+00:00
codeforces:1866-I
codeforces
1866-I
Imagination Castle
https://codeforces.com/problemset/problem/1866/I
[ "dp", "games", "two pointers" ]
null
null
stdin_stdout
2,300
{ "solved_count": 988 }
2026-11-02T05:37:07.883505+00:00
codeforces:1866-H
codeforces
1866-H
Happy Sets
https://codeforces.com/problemset/problem/1866/H
[ "combinatorics" ]
null
null
stdin_stdout
2,100
{ "solved_count": 1983 }
2026-11-02T05:37:07.883505+00:00
codeforces:1866-G
codeforces
1866-G
Grouped Carriages
https://codeforces.com/problemset/problem/1866/G
[ "binary search", "data structures", "dp", "flows", "greedy" ]
null
null
stdin_stdout
2,100
{ "solved_count": 2344 }
2026-11-02T05:37:07.883505+00:00
codeforces:1866-F
codeforces
1866-F
Freak Joker Process
https://codeforces.com/problemset/problem/1866/F
[ "binary search", "data structures", "sortings" ]
null
null
stdin_stdout
3,100
{ "solved_count": 210 }
2026-11-02T05:37:07.883505+00:00
codeforces:1866-E
codeforces
1866-E
Elevators of Tamem
https://codeforces.com/problemset/problem/1866/E
[ "dp" ]
null
null
stdin_stdout
2,700
{ "solved_count": 580 }
2026-11-02T05:37:07.883505+00:00
codeforces:1866-D
codeforces
1866-D
Digital Wallet
https://codeforces.com/problemset/problem/1866/D
[ "dp", "greedy" ]
null
null
stdin_stdout
2,300
{ "solved_count": 1628 }
2026-11-02T05:37:07.883505+00:00
codeforces:1866-C
codeforces
1866-C
Completely Searching for Inversions
https://codeforces.com/problemset/problem/1866/C
[ "dfs and similar", "dp", "graphs" ]
null
null
stdin_stdout
1,900
{ "solved_count": 3498 }
2026-11-02T05:37:07.883505+00:00
codeforces:1866-B
codeforces
1866-B
Battling with Numbers
https://codeforces.com/problemset/problem/1866/B
[ "combinatorics", "math", "number theory" ]
null
null
stdin_stdout
1,400
{ "solved_count": 9583 }
2026-11-02T05:37:07.883505+00:00
codeforces:1866-A
codeforces
1866-A
Ambitious Kid
https://codeforces.com/problemset/problem/1866/A
[ "math" ]
null
null
stdin_stdout
800
{ "solved_count": 61175 }
2026-11-02T05:37:07.883505+00:00
codeforces:1864-I
codeforces
1864-I
Future Dominators
https://codeforces.com/problemset/problem/1864/I
[ "graphs", "greedy" ]
null
null
stdin_stdout
3,500
{ "solved_count": 112 }
2026-11-02T05:37:07.883505+00:00
codeforces:1864-H
codeforces
1864-H
Asterism Stream
https://codeforces.com/problemset/problem/1864/H
[ "dp", "math", "matrices" ]
null
null
stdin_stdout
3,200
{ "solved_count": 640 }
2026-11-02T05:37:07.883505+00:00
codeforces:1864-G
codeforces
1864-G
Magic Square
https://codeforces.com/problemset/problem/1864/G
[ "combinatorics", "constructive algorithms", "implementation" ]
null
null
stdin_stdout
3,100
{ "solved_count": 405 }
2026-11-02T05:37:07.883505+00:00
codeforces:1864-F
codeforces
1864-F
Exotic Queries
https://codeforces.com/problemset/problem/1864/F
[ "data structures", "implementation", "sortings" ]
null
null
stdin_stdout
2,300
{ "solved_count": 1706 }
2026-11-02T05:37:07.883505+00:00
codeforces:1864-E
codeforces
1864-E
Guess Game
https://codeforces.com/problemset/problem/1864/E
[ "bitmasks", "data structures", "games", "math", "probabilities", "sortings", "strings", "trees" ]
null
null
stdin_stdout
2,100
{ "solved_count": 3178 }
2026-11-02T05:37:07.883505+00:00