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codeforces:1697-F
codeforces
1697-F
Too Many Constraints
https://codeforces.com/problemset/problem/1697/F
[ "2-sat", "constructive algorithms", "graphs", "implementation" ]
null
null
stdin_stdout
2,800
{ "solved_count": 892 }
2026-11-02T05:37:07.883505+00:00
codeforces:1697-E
codeforces
1697-E
Coloring
https://codeforces.com/problemset/problem/1697/E
[ "brute force", "combinatorics", "constructive algorithms", "dp", "geometry", "graphs", "greedy", "implementation", "math" ]
null
null
stdin_stdout
2,400
{ "solved_count": 1509 }
2026-11-02T05:37:07.883505+00:00
codeforces:1697-D
codeforces
1697-D
Guess The String
https://codeforces.com/problemset/problem/1697/D
[ "binary search", "constructive algorithms", "interactive" ]
null
null
stdin_stdout
1,900
{ "solved_count": 5140 }
2026-11-02T05:37:07.883505+00:00
codeforces:1697-C
codeforces
1697-C
awoo's Favorite Problem
https://codeforces.com/problemset/problem/1697/C
[ "binary search", "constructive algorithms", "data structures", "greedy", "implementation", "strings", "two pointers" ]
null
null
stdin_stdout
1,400
{ "solved_count": 16087 }
2026-11-02T05:37:07.883505+00:00
codeforces:1697-B
codeforces
1697-B
Promo
https://codeforces.com/problemset/problem/1697/B
[ "greedy", "sortings" ]
null
null
stdin_stdout
900
{ "solved_count": 31910 }
2026-11-02T05:37:07.883505+00:00
codeforces:1697-A
codeforces
1697-A
Parkway Walk
https://codeforces.com/problemset/problem/1697/A
[ "greedy", "implementation" ]
null
null
stdin_stdout
800
{ "solved_count": 26973 }
2026-11-02T05:37:07.883505+00:00
codeforces:1696-H
codeforces
1696-H
Maximum Product?
https://codeforces.com/problemset/problem/1696/H
[ "brute force", "combinatorics", "dp", "greedy", "implementation", "math", "two pointers" ]
null
null
stdin_stdout
3,500
{ "solved_count": 221 }
2026-11-02T05:37:07.883505+00:00
codeforces:1696-G
codeforces
1696-G
Fishingprince Plays With Array Again
https://codeforces.com/problemset/problem/1696/G
[ "brute force", "data structures", "geometry", "math" ]
null
null
stdin_stdout
3,300
{ "solved_count": 458 }
2026-11-02T05:37:07.883505+00:00
codeforces:1696-F
codeforces
1696-F
Tree Recovery
https://codeforces.com/problemset/problem/1696/F
[ "brute force", "constructive algorithms", "dfs and similar", "dsu", "graphs", "trees" ]
null
null
stdin_stdout
2,600
{ "solved_count": 1188 }
2026-11-02T05:37:07.883505+00:00
codeforces:1696-E
codeforces
1696-E
Placing Jinas
https://codeforces.com/problemset/problem/1696/E
[ "combinatorics", "math" ]
null
null
stdin_stdout
2,000
{ "solved_count": 5104 }
2026-11-02T05:37:07.883505+00:00
codeforces:1696-D
codeforces
1696-D
Permutation Graph
https://codeforces.com/problemset/problem/1696/D
[ "binary search", "constructive algorithms", "data structures", "divide and conquer", "greedy", "shortest paths" ]
null
null
stdin_stdout
1,900
{ "solved_count": 6121 }
2026-11-02T05:37:07.883505+00:00
codeforces:1696-C
codeforces
1696-C
Fishingprince Plays With Array
https://codeforces.com/problemset/problem/1696/C
[ "constructive algorithms", "greedy", "implementation", "math" ]
null
null
stdin_stdout
1,400
{ "solved_count": 12750 }
2026-11-02T05:37:07.883505+00:00
codeforces:1696-B
codeforces
1696-B
NIT Destroys the Universe
https://codeforces.com/problemset/problem/1696/B
[ "greedy" ]
null
null
stdin_stdout
900
{ "solved_count": 41674 }
2026-11-02T05:37:07.883505+00:00
codeforces:1696-A
codeforces
1696-A
NIT orz!
https://codeforces.com/problemset/problem/1696/A
[ "bitmasks", "greedy" ]
null
null
stdin_stdout
800
{ "solved_count": 20576 }
2026-11-02T05:37:07.883505+00:00
codeforces:1695-E
codeforces
1695-E
Ambiguous Dominoes
https://codeforces.com/problemset/problem/1695/E
[ "constructive algorithms", "dfs and similar", "graphs" ]
null
null
stdin_stdout
2,700
{ "solved_count": 567 }
2026-11-02T05:37:07.883505+00:00
codeforces:1695-D2
codeforces
1695-D2
Tree Queries (Hard Version)
https://codeforces.com/problemset/problem/1695/D2
[ "constructive algorithms", "dfs and similar", "dp", "greedy", "trees" ]
null
null
stdin_stdout
2,300
{ "solved_count": 2367 }
2026-11-02T05:37:07.883505+00:00
codeforces:1695-D1
codeforces
1695-D1
Tree Queries (Easy Version)
https://codeforces.com/problemset/problem/1695/D1
[ "brute force", "constructive algorithms", "dfs and similar", "dp", "greedy", "trees" ]
null
null
stdin_stdout
2,200
{ "solved_count": 2538 }
2026-11-02T05:37:07.883505+00:00
codeforces:1695-C
codeforces
1695-C
Zero Path
https://codeforces.com/problemset/problem/1695/C
[ "brute force", "data structures", "dp", "graphs", "greedy", "shortest paths" ]
null
null
stdin_stdout
1,700
{ "solved_count": 14971 }
2026-11-02T05:37:07.883505+00:00
codeforces:1695-B
codeforces
1695-B
Circle Game
https://codeforces.com/problemset/problem/1695/B
[ "games", "greedy" ]
null
null
stdin_stdout
1,000
{ "solved_count": 20330 }
2026-11-02T05:37:07.883505+00:00
codeforces:1695-A
codeforces
1695-A
Subrectangle Guess
https://codeforces.com/problemset/problem/1695/A
[ "games" ]
null
null
stdin_stdout
800
{ "solved_count": 16876 }
2026-11-02T05:37:07.883505+00:00
codeforces:1694-B
codeforces
1694-B
Paranoid String
https://codeforces.com/problemset/problem/1694/B
[ "constructive algorithms", "greedy" ]
null
null
stdin_stdout
1,200
{ "solved_count": 20925 }
2026-11-02T05:37:07.883505+00:00
codeforces:1694-A
codeforces
1694-A
Creep
https://codeforces.com/problemset/problem/1694/A
[ "greedy", "implementation" ]
null
null
stdin_stdout
800
{ "solved_count": 23666 }
2026-11-02T05:37:07.883505+00:00
codeforces:1693-F
codeforces
1693-F
I Might Be Wrong
https://codeforces.com/problemset/problem/1693/F
[ "binary search", "greedy", "two pointers" ]
null
null
stdin_stdout
3,400
{ "solved_count": 685 }
2026-11-02T05:37:07.883505+00:00
codeforces:1693-E
codeforces
1693-E
Outermost Maximums
https://codeforces.com/problemset/problem/1693/E
[ "data structures", "greedy" ]
null
null
stdin_stdout
3,400
{ "solved_count": 577 }
2026-11-02T05:37:07.883505+00:00
codeforces:1693-D
codeforces
1693-D
Decinc Dividing
https://codeforces.com/problemset/problem/1693/D
[ "brute force", "data structures", "divide and conquer", "dp", "greedy" ]
null
null
stdin_stdout
2,800
{ "solved_count": 1215 }
2026-11-02T05:37:07.883505+00:00
codeforces:1693-C
codeforces
1693-C
Keshi in Search of AmShZ
https://codeforces.com/problemset/problem/1693/C
[ "graphs", "greedy", "shortest paths" ]
null
null
stdin_stdout
2,300
{ "solved_count": 3342 }
2026-11-02T05:37:07.883505+00:00
codeforces:1693-B
codeforces
1693-B
Fake Plastic Trees
https://codeforces.com/problemset/problem/1693/B
[ "dfs and similar", "dp", "greedy", "trees" ]
null
null
stdin_stdout
1,700
{ "solved_count": 9852 }
2026-11-02T05:37:07.883505+00:00
codeforces:1693-A
codeforces
1693-A
Directional Increase
https://codeforces.com/problemset/problem/1693/A
[ "greedy" ]
null
null
stdin_stdout
1,300
{ "solved_count": 17655 }
2026-11-02T05:37:07.883505+00:00
codeforces:1692-H
codeforces
1692-H
Gambling
https://codeforces.com/problemset/problem/1692/H
[ "data structures", "dp", "greedy", "math" ]
null
null
stdin_stdout
1,700
{ "solved_count": 10301 }
2026-11-02T05:37:07.883505+00:00
codeforces:1692-G
codeforces
1692-G
2^Sort
https://codeforces.com/problemset/problem/1692/G
[ "data structures", "dp", "sortings", "two pointers" ]
null
null
stdin_stdout
1,400
{ "solved_count": 29106 }
2026-11-02T05:37:07.883505+00:00
codeforces:1692-F
codeforces
1692-F
3SUM
https://codeforces.com/problemset/problem/1692/F
[ "brute force", "math" ]
null
null
stdin_stdout
1,300
{ "solved_count": 28426 }
2026-11-02T05:37:07.883505+00:00
codeforces:1692-E
codeforces
1692-E
Binary Deque
https://codeforces.com/problemset/problem/1692/E
[ "binary search", "implementation", "two pointers" ]
null
null
stdin_stdout
1,200
{ "solved_count": 37621 }
2026-11-02T05:37:07.883505+00:00
codeforces:1692-D
codeforces
1692-D
The Clock
https://codeforces.com/problemset/problem/1692/D
[ "brute force", "implementation" ]
null
null
stdin_stdout
1,100
{ "solved_count": 22364 }
2026-11-02T05:37:07.883505+00:00
codeforces:1692-C
codeforces
1692-C
Where's the Bishop?
https://codeforces.com/problemset/problem/1692/C
[ "implementation" ]
null
null
stdin_stdout
800
{ "solved_count": 40001 }
2026-11-02T05:37:07.883505+00:00
codeforces:1692-B
codeforces
1692-B
All Distinct
https://codeforces.com/problemset/problem/1692/B
[ "greedy", "sortings" ]
null
null
stdin_stdout
800
{ "solved_count": 40779 }
2026-11-02T05:37:07.883505+00:00
codeforces:1692-A
codeforces
1692-A
Marathon
https://codeforces.com/problemset/problem/1692/A
[ "implementation" ]
null
null
stdin_stdout
800
{ "solved_count": 91124 }
2026-11-02T05:37:07.883505+00:00
codeforces:1691-F
codeforces
1691-F
K-Set Tree
https://codeforces.com/problemset/problem/1691/F
[ "combinatorics", "dfs and similar", "dp", "math", "trees" ]
null
null
stdin_stdout
2,500
{ "solved_count": 1215 }
2026-11-02T05:37:07.883505+00:00
codeforces:1691-E
codeforces
1691-E
Number of Groups
https://codeforces.com/problemset/problem/1691/E
[ "data structures", "dfs and similar", "dsu", "graphs", "greedy", "sortings" ]
null
null
stdin_stdout
2,300
{ "solved_count": 2234 }
2026-11-02T05:37:07.883505+00:00
codeforces:1691-D
codeforces
1691-D
Max GEQ Sum
https://codeforces.com/problemset/problem/1691/D
[ "binary search", "constructive algorithms", "data structures", "divide and conquer", "implementation", "two pointers" ]
null
null
stdin_stdout
1,800
{ "solved_count": 8058 }
2026-11-02T05:37:07.883505+00:00
codeforces:1691-C
codeforces
1691-C
Sum of Substrings
https://codeforces.com/problemset/problem/1691/C
[ "brute force", "constructive algorithms", "greedy", "math", "strings" ]
null
null
stdin_stdout
1,400
{ "solved_count": 17589 }
2026-11-02T05:37:07.883505+00:00
codeforces:1691-B
codeforces
1691-B
Shoe Shuffling
https://codeforces.com/problemset/problem/1691/B
[ "constructive algorithms", "greedy", "implementation", "two pointers" ]
null
null
stdin_stdout
1,000
{ "solved_count": 39731 }
2026-11-02T05:37:07.883505+00:00
codeforces:1691-A
codeforces
1691-A
Beat The Odds
https://codeforces.com/problemset/problem/1691/A
[ "brute force", "greedy", "math" ]
null
null
stdin_stdout
800
{ "solved_count": 32725 }
2026-11-02T05:37:07.883505+00:00
codeforces:1690-G
codeforces
1690-G
Count the Trains
https://codeforces.com/problemset/problem/1690/G
[ "binary search", "data structures", "greedy", "sortings" ]
null
null
stdin_stdout
2,000
{ "solved_count": 4283 }
2026-11-02T05:37:07.883505+00:00
codeforces:1690-F
codeforces
1690-F
Shifting String
https://codeforces.com/problemset/problem/1690/F
[ "graphs", "math", "number theory", "strings" ]
null
null
stdin_stdout
1,700
{ "solved_count": 9441 }
2026-11-02T05:37:07.883505+00:00
codeforces:1690-E
codeforces
1690-E
Price Maximization
https://codeforces.com/problemset/problem/1690/E
[ "binary search", "greedy", "math", "two pointers" ]
null
null
stdin_stdout
1,500
{ "solved_count": 17456 }
2026-11-02T05:37:07.883505+00:00
codeforces:1690-D
codeforces
1690-D
Black and White Stripe
https://codeforces.com/problemset/problem/1690/D
[ "implementation", "two pointers" ]
null
null
stdin_stdout
1,000
{ "solved_count": 53529 }
2026-11-02T05:37:07.883505+00:00
codeforces:1690-C
codeforces
1690-C
Restoring the Duration of Tasks
https://codeforces.com/problemset/problem/1690/C
[ "data structures", "greedy", "implementation" ]
null
null
stdin_stdout
800
{ "solved_count": 28438 }
2026-11-02T05:37:07.883505+00:00
codeforces:1690-B
codeforces
1690-B
Array Decrements
https://codeforces.com/problemset/problem/1690/B
[ "greedy", "implementation" ]
null
null
stdin_stdout
800
{ "solved_count": 27210 }
2026-11-02T05:37:07.883505+00:00
codeforces:1690-A
codeforces
1690-A
Print a Pedestal (Codeforces logo?)
https://codeforces.com/problemset/problem/1690/A
[ "constructive algorithms", "greedy" ]
null
null
stdin_stdout
800
{ "solved_count": 36046 }
2026-11-02T05:37:07.883505+00:00
codeforces:1689-E
codeforces
1689-E
ANDfinity
https://codeforces.com/problemset/problem/1689/E
[ "bitmasks", "brute force", "constructive algorithms", "dfs and similar", "dsu", "graphs" ]
null
null
stdin_stdout
2,500
{ "solved_count": 1443 }
2026-11-02T05:37:07.883505+00:00
codeforces:1689-D
codeforces
1689-D
Lena and Matrix
https://codeforces.com/problemset/problem/1689/D
[ "data structures", "dp", "geometry", "shortest paths" ]
null
null
stdin_stdout
1,900
{ "solved_count": 4867 }
2026-11-02T05:37:07.883505+00:00
codeforces:1689-C
codeforces
1689-C
Infected Tree
https://codeforces.com/problemset/problem/1689/C
[ "dfs and similar", "dp", "trees" ]
null
null
stdin_stdout
1,600
{ "solved_count": 14375 }
2026-11-02T05:37:07.883505+00:00
codeforces:1689-B
codeforces
1689-B
Mystic Permutation
https://codeforces.com/problemset/problem/1689/B
[ "data structures", "greedy" ]
null
null
stdin_stdout
900
{ "solved_count": 19474 }
2026-11-02T05:37:07.883505+00:00
codeforces:1689-A
codeforces
1689-A
Lex String
https://codeforces.com/problemset/problem/1689/A
[ "brute force", "greedy", "implementation", "sortings", "two pointers" ]
null
null
stdin_stdout
800
{ "solved_count": 17940 }
2026-11-02T05:37:07.883505+00:00
codeforces:1688-C
codeforces
1688-C
Manipulating History
https://codeforces.com/problemset/problem/1688/C
[ "constructive algorithms", "greedy", "strings" ]
null
null
stdin_stdout
1,700
{ "solved_count": 8895 }
2026-11-02T05:37:07.883505+00:00
codeforces:1688-B
codeforces
1688-B
Patchouli's Magical Talisman
https://codeforces.com/problemset/problem/1688/B
[ "bitmasks", "constructive algorithms", "greedy", "sortings" ]
null
null
stdin_stdout
800
{ "solved_count": 19257 }
2026-11-02T05:37:07.883505+00:00
codeforces:1688-A
codeforces
1688-A
Cirno's Perfect Bitmasks Classroom
https://codeforces.com/problemset/problem/1688/A
[ "bitmasks", "brute force" ]
null
null
stdin_stdout
800
{ "solved_count": 24114 }
2026-11-02T05:37:07.883505+00:00
codeforces:1687-F
codeforces
1687-F
Koishi's Unconscious Permutation
https://codeforces.com/problemset/problem/1687/F
[ "fft", "math" ]
null
null
stdin_stdout
3,500
{ "solved_count": 115 }
2026-11-02T05:37:07.883505+00:00
codeforces:1687-E
codeforces
1687-E
Become Big For Me
https://codeforces.com/problemset/problem/1687/E
[ "combinatorics", "constructive algorithms", "greedy", "math", "number theory" ]
null
null
stdin_stdout
3,500
{ "solved_count": 333 }
2026-11-02T05:37:07.883505+00:00
codeforces:1687-D
codeforces
1687-D
Cute number
https://codeforces.com/problemset/problem/1687/D
[ "binary search", "brute force", "data structures", "dsu", "implementation", "math" ]
null
null
stdin_stdout
2,900
{ "solved_count": 797 }
2026-11-02T05:37:07.883505+00:00
codeforces:1687-C
codeforces
1687-C
Sanae and Giant Robot
https://codeforces.com/problemset/problem/1687/C
[ "binary search", "brute force", "data structures", "dsu", "greedy", "sortings" ]
null
null
stdin_stdout
2,500
{ "solved_count": 1761 }
2026-11-02T05:37:07.883505+00:00
codeforces:1687-B
codeforces
1687-B
Railway System
https://codeforces.com/problemset/problem/1687/B
[ "constructive algorithms", "graphs", "greedy", "interactive", "sortings" ]
null
null
stdin_stdout
1,700
{ "solved_count": 4226 }
2026-11-02T05:37:07.883505+00:00
codeforces:1687-A
codeforces
1687-A
The Enchanted Forest
https://codeforces.com/problemset/problem/1687/A
[ "brute force", "greedy" ]
null
null
stdin_stdout
1,600
{ "solved_count": 11628 }
2026-11-02T05:37:07.883505+00:00
codeforces:1686-B
codeforces
1686-B
Odd Subarrays
https://codeforces.com/problemset/problem/1686/B
[ "dp", "greedy" ]
null
null
stdin_stdout
800
{ "solved_count": 19530 }
2026-11-02T05:37:07.883505+00:00
codeforces:1686-A
codeforces
1686-A
Everything Everywhere All But One
https://codeforces.com/problemset/problem/1686/A
[ "greedy" ]
null
null
stdin_stdout
800
{ "solved_count": 21363 }
2026-11-02T05:37:07.883505+00:00
codeforces:1685-E
codeforces
1685-E
The Ultimate LIS Problem
https://codeforces.com/problemset/problem/1685/E
[ "data structures", "greedy" ]
null
null
stdin_stdout
3,500
{ "solved_count": 208 }
2026-11-02T05:37:07.883505+00:00
codeforces:1685-D2
codeforces
1685-D2
Permutation Weight (Hard Version)
https://codeforces.com/problemset/problem/1685/D2
[ "constructive algorithms", "greedy" ]
null
null
stdin_stdout
3,500
{ "solved_count": 149 }
2026-11-02T05:37:07.883505+00:00
codeforces:1685-D1
codeforces
1685-D1
Permutation Weight (Easy Version)
https://codeforces.com/problemset/problem/1685/D1
[ "constructive algorithms", "dfs and similar", "dsu" ]
null
null
stdin_stdout
2,800
{ "solved_count": 553 }
2026-11-02T05:37:07.883505+00:00
codeforces:1685-C
codeforces
1685-C
Bring Balance
https://codeforces.com/problemset/problem/1685/C
[ "brute force", "constructive algorithms", "greedy" ]
null
null
stdin_stdout
2,600
{ "solved_count": 1502 }
2026-11-02T05:37:07.883505+00:00
codeforces:1685-B
codeforces
1685-B
Linguistics
https://codeforces.com/problemset/problem/1685/B
[ "greedy", "implementation", "sortings", "strings" ]
null
null
stdin_stdout
2,000
{ "solved_count": 3770 }
2026-11-02T05:37:07.883505+00:00
codeforces:1685-A
codeforces
1685-A
Circular Local MiniMax
https://codeforces.com/problemset/problem/1685/A
[ "constructive algorithms", "greedy", "sortings" ]
null
null
stdin_stdout
1,100
{ "solved_count": 18814 }
2026-11-02T05:37:07.883505+00:00
codeforces:1684-H
codeforces
1684-H
Hard Cut
https://codeforces.com/problemset/problem/1684/H
[ "constructive algorithms", "dfs and similar", "divide and conquer", "math" ]
null
null
stdin_stdout
3,400
{ "solved_count": 316 }
2026-11-02T05:37:07.883505+00:00
codeforces:1684-G
codeforces
1684-G
Euclid Guess
https://codeforces.com/problemset/problem/1684/G
[ "constructive algorithms", "flows", "graph matchings", "math", "number theory" ]
null
null
stdin_stdout
2,800
{ "solved_count": 893 }
2026-11-02T05:37:07.883505+00:00
codeforces:1684-F
codeforces
1684-F
Diverse Segments
https://codeforces.com/problemset/problem/1684/F
[ "data structures", "two pointers" ]
null
null
stdin_stdout
2,600
{ "solved_count": 1260 }
2026-11-02T05:37:07.883505+00:00
codeforces:1684-E
codeforces
1684-E
MEX vs DIFF
https://codeforces.com/problemset/problem/1684/E
[ "binary search", "brute force", "constructive algorithms", "data structures", "greedy", "two pointers" ]
null
null
stdin_stdout
2,100
{ "solved_count": 3737 }
2026-11-02T05:37:07.883505+00:00
codeforces:1684-D
codeforces
1684-D
Traps
https://codeforces.com/problemset/problem/1684/D
[ "constructive algorithms", "greedy", "sortings" ]
null
null
stdin_stdout
1,700
{ "solved_count": 10968 }
2026-11-02T05:37:07.883505+00:00
codeforces:1684-C
codeforces
1684-C
Column Swapping
https://codeforces.com/problemset/problem/1684/C
[ "brute force", "constructive algorithms", "greedy", "implementation", "sortings" ]
null
null
stdin_stdout
1,400
{ "solved_count": 13409 }
2026-11-02T05:37:07.883505+00:00
codeforces:1684-B
codeforces
1684-B
Z mod X = C
https://codeforces.com/problemset/problem/1684/B
[ "constructive algorithms", "math" ]
null
null
stdin_stdout
800
{ "solved_count": 22016 }
2026-11-02T05:37:07.883505+00:00
codeforces:1684-A
codeforces
1684-A
Digit Minimization
https://codeforces.com/problemset/problem/1684/A
[ "constructive algorithms", "games", "math", "strings" ]
null
null
stdin_stdout
800
{ "solved_count": 25136 }
2026-11-02T05:37:07.883505+00:00
codeforces:1682-F
codeforces
1682-F
MCMF?
https://codeforces.com/problemset/problem/1682/F
[ "data structures", "flows", "graphs", "greedy", "sortings", "two pointers" ]
null
null
stdin_stdout
2,700
{ "solved_count": 482 }
2026-11-02T05:37:07.883505+00:00
codeforces:1682-E
codeforces
1682-E
Unordered Swaps
https://codeforces.com/problemset/problem/1682/E
[ "constructive algorithms", "dfs and similar", "graphs", "greedy", "math", "sortings", "trees" ]
null
null
stdin_stdout
2,700
{ "solved_count": 805 }
2026-11-02T05:37:07.883505+00:00
codeforces:1682-D
codeforces
1682-D
Circular Spanning Tree
https://codeforces.com/problemset/problem/1682/D
[ "constructive algorithms", "implementation", "trees" ]
null
null
stdin_stdout
2,000
{ "solved_count": 3826 }
2026-11-02T05:37:07.883505+00:00
codeforces:1682-C
codeforces
1682-C
LIS or Reverse LIS?
https://codeforces.com/problemset/problem/1682/C
[ "constructive algorithms", "greedy", "implementation", "math" ]
null
null
stdin_stdout
1,400
{ "solved_count": 17030 }
2026-11-02T05:37:07.883505+00:00
codeforces:1682-B
codeforces
1682-B
AND Sorting
https://codeforces.com/problemset/problem/1682/B
[ "bitmasks", "constructive algorithms", "sortings" ]
null
null
stdin_stdout
1,100
{ "solved_count": 29229 }
2026-11-02T05:37:07.883505+00:00
codeforces:1682-A
codeforces
1682-A
Palindromic Indices
https://codeforces.com/problemset/problem/1682/A
[ "greedy", "strings" ]
null
null
stdin_stdout
800
{ "solved_count": 20116 }
2026-11-02T05:37:07.883505+00:00
codeforces:1681-F
codeforces
1681-F
Unique Occurrences
https://codeforces.com/problemset/problem/1681/F
[ "data structures", "dfs and similar", "divide and conquer", "dp", "dsu", "trees" ]
null
null
stdin_stdout
2,300
{ "solved_count": 2569 }
2026-11-02T05:37:07.883505+00:00
codeforces:1681-E
codeforces
1681-E
Labyrinth Adventures
https://codeforces.com/problemset/problem/1681/E
[ "data structures", "dp", "matrices", "shortest paths" ]
null
null
stdin_stdout
2,600
{ "solved_count": 1095 }
2026-11-02T05:37:07.883505+00:00
codeforces:1681-D
codeforces
1681-D
Required Length
https://codeforces.com/problemset/problem/1681/D
[ "brute force", "dfs and similar", "dp", "hashing", "shortest paths" ]
null
null
stdin_stdout
1,700
{ "solved_count": 11009 }
2026-11-02T05:37:07.883505+00:00
codeforces:1681-C
codeforces
1681-C
Double Sort
https://codeforces.com/problemset/problem/1681/C
[ "implementation", "sortings" ]
null
null
stdin_stdout
1,200
{ "solved_count": 19042 }
2026-11-02T05:37:07.883505+00:00
codeforces:1681-B
codeforces
1681-B
Card Trick
https://codeforces.com/problemset/problem/1681/B
[ "implementation", "math" ]
null
null
stdin_stdout
800
{ "solved_count": 21256 }
2026-11-02T05:37:07.883505+00:00
codeforces:1681-A
codeforces
1681-A
Game with Cards
https://codeforces.com/problemset/problem/1681/A
[ "games", "greedy" ]
null
null
stdin_stdout
800
{ "solved_count": 21814 }
2026-11-02T05:37:07.883505+00:00
codeforces:1680-F
codeforces
1680-F
Lenient Vertex Cover
https://codeforces.com/problemset/problem/1680/F
[ "dfs and similar", "divide and conquer", "dsu", "graphs", "trees" ]
null
null
stdin_stdout
2,600
{ "solved_count": 1019 }
2026-11-02T05:37:07.883505+00:00
codeforces:1680-E
codeforces
1680-E
Moving Chips
https://codeforces.com/problemset/problem/1680/E
[ "bitmasks", "dp", "greedy" ]
null
null
stdin_stdout
2,000
{ "solved_count": 4484 }
2026-11-02T05:37:07.883505+00:00
codeforces:1680-D
codeforces
1680-D
Dog Walking
https://codeforces.com/problemset/problem/1680/D
[ "brute force", "greedy", "math" ]
null
null
stdin_stdout
2,400
{ "solved_count": 1437 }
2026-11-02T05:37:07.883505+00:00
codeforces:1680-C
codeforces
1680-C
Binary String
https://codeforces.com/problemset/problem/1680/C
[ "binary search", "greedy", "strings", "two pointers" ]
null
null
stdin_stdout
1,600
{ "solved_count": 11439 }
2026-11-02T05:37:07.883505+00:00
codeforces:1680-B
codeforces
1680-B
Robots
https://codeforces.com/problemset/problem/1680/B
[ "implementation" ]
null
null
stdin_stdout
800
{ "solved_count": 19201 }
2026-11-02T05:37:07.883505+00:00
codeforces:1680-A
codeforces
1680-A
Minimums and Maximums
https://codeforces.com/problemset/problem/1680/A
[ "brute force", "math" ]
null
null
stdin_stdout
800
{ "solved_count": 22510 }
2026-11-02T05:37:07.883505+00:00
codeforces:1679-F
codeforces
1679-F
Formalism for Formalism
https://codeforces.com/problemset/problem/1679/F
[ "bitmasks", "dp", "math" ]
null
null
stdin_stdout
2,600
{ "solved_count": 876 }
2026-11-02T05:37:07.883505+00:00
codeforces:1679-E
codeforces
1679-E
Typical Party in Dorm
https://codeforces.com/problemset/problem/1679/E
[ "bitmasks", "combinatorics", "dp", "strings" ]
null
null
stdin_stdout
2,400
{ "solved_count": 1477 }
2026-11-02T05:37:07.883505+00:00
codeforces:1679-D
codeforces
1679-D
Toss a Coin to Your Graph...
https://codeforces.com/problemset/problem/1679/D
[ "binary search", "dfs and similar", "dp", "graphs" ]
null
null
stdin_stdout
1,900
{ "solved_count": 6224 }
2026-11-02T05:37:07.883505+00:00