uid
stringlengths
9
18
source
stringclasses
2 values
native_id
stringlengths
3
7
title
stringlengths
2
64
url
stringlengths
36
49
tags
listlengths
0
11
time_limit_ms
null
memory_limit_mb
null
io_type
stringclasses
1 value
difficulty_rating
int64
800
3.5k
stats
dict
last_scraped_at
stringclasses
2 values
codeforces:329-A
codeforces
329-A
Purification
https://codeforces.com/problemset/problem/329/A
[ "constructive algorithms", "greedy" ]
null
null
stdin_stdout
1,500
{ "solved_count": 4855 }
2026-08-10T02:20:32.917453+00:00
codeforces:328-B
codeforces
328-B
Sheldon and Ice Pieces
https://codeforces.com/problemset/problem/328/B
[ "greedy" ]
null
null
stdin_stdout
1,500
{ "solved_count": 1600 }
2026-08-10T02:20:32.917453+00:00
codeforces:328-A
codeforces
328-A
IQ Test
https://codeforces.com/problemset/problem/328/A
[ "implementation" ]
null
null
stdin_stdout
1,800
{ "solved_count": 2433 }
2026-08-10T02:20:32.917453+00:00
codeforces:327-E
codeforces
327-E
Axis Walking
https://codeforces.com/problemset/problem/327/E
[ "bitmasks", "combinatorics", "constructive algorithms", "dp", "meet-in-the-middle" ]
null
null
stdin_stdout
2,300
{ "solved_count": 1638 }
2026-08-10T02:20:32.917453+00:00
codeforces:327-D
codeforces
327-D
Block Tower
https://codeforces.com/problemset/problem/327/D
[ "constructive algorithms", "dfs and similar", "graphs" ]
null
null
stdin_stdout
1,900
{ "solved_count": 2529 }
2026-08-10T02:20:32.917453+00:00
codeforces:327-C
codeforces
327-C
Magic Five
https://codeforces.com/problemset/problem/327/C
[ "combinatorics", "math" ]
null
null
stdin_stdout
1,700
{ "solved_count": 3712 }
2026-08-10T02:20:32.917453+00:00
codeforces:327-B
codeforces
327-B
Hungry Sequence
https://codeforces.com/problemset/problem/327/B
[ "math" ]
null
null
stdin_stdout
1,200
{ "solved_count": 21863 }
2026-08-10T02:20:32.917453+00:00
codeforces:327-A
codeforces
327-A
Flipping Game
https://codeforces.com/problemset/problem/327/A
[ "brute force", "dp", "implementation" ]
null
null
stdin_stdout
1,200
{ "solved_count": 51625 }
2026-08-10T02:20:32.917453+00:00
codeforces:325-E
codeforces
325-E
The Red Button
https://codeforces.com/problemset/problem/325/E
[ "combinatorics", "dfs and similar", "dsu", "graphs", "greedy" ]
null
null
stdin_stdout
2,800
{ "solved_count": 1027 }
2026-08-10T02:20:32.917453+00:00
codeforces:325-D
codeforces
325-D
Reclamation
https://codeforces.com/problemset/problem/325/D
[ "dsu" ]
null
null
stdin_stdout
2,900
{ "solved_count": 601 }
2026-08-10T02:20:32.917453+00:00
codeforces:325-C
codeforces
325-C
Monsters and Diamonds
https://codeforces.com/problemset/problem/325/C
[ "dfs and similar", "graphs", "shortest paths" ]
null
null
stdin_stdout
2,600
{ "solved_count": 499 }
2026-08-10T02:20:32.917453+00:00
codeforces:325-B
codeforces
325-B
Stadium and Games
https://codeforces.com/problemset/problem/325/B
[ "binary search", "math" ]
null
null
stdin_stdout
1,800
{ "solved_count": 1682 }
2026-08-10T02:20:32.917453+00:00
codeforces:325-A
codeforces
325-A
Square and Rectangles
https://codeforces.com/problemset/problem/325/A
[ "implementation" ]
null
null
stdin_stdout
1,500
{ "solved_count": 2317 }
2026-08-10T02:20:32.917453+00:00
codeforces:323-C
codeforces
323-C
Two permutations
https://codeforces.com/problemset/problem/323/C
[ "data structures" ]
null
null
stdin_stdout
2,400
{ "solved_count": 710 }
2026-08-10T02:20:32.917453+00:00
codeforces:323-B
codeforces
323-B
Tournament-graph
https://codeforces.com/problemset/problem/323/B
[ "constructive algorithms", "graphs" ]
null
null
stdin_stdout
2,200
{ "solved_count": 498 }
2026-08-10T02:20:32.917453+00:00
codeforces:323-A
codeforces
323-A
Black-and-White Cube
https://codeforces.com/problemset/problem/323/A
[ "combinatorics", "constructive algorithms" ]
null
null
stdin_stdout
1,600
{ "solved_count": 977 }
2026-08-10T02:20:32.917453+00:00
codeforces:322-B
codeforces
322-B
Ciel and Flowers
https://codeforces.com/problemset/problem/322/B
[ "combinatorics", "math" ]
null
null
stdin_stdout
1,600
{ "solved_count": 13332 }
2026-08-10T02:20:32.917453+00:00
codeforces:322-A
codeforces
322-A
Ciel and Dancing
https://codeforces.com/problemset/problem/322/A
[ "greedy" ]
null
null
stdin_stdout
1,000
{ "solved_count": 9075 }
2026-08-10T02:20:32.917453+00:00
codeforces:321-E
codeforces
321-E
Ciel and Gondolas
https://codeforces.com/problemset/problem/321/E
[ "data structures", "divide and conquer", "dp" ]
null
null
stdin_stdout
2,600
{ "solved_count": 6625 }
2026-08-10T02:20:32.917453+00:00
codeforces:321-D
codeforces
321-D
Ciel and Flipboard
https://codeforces.com/problemset/problem/321/D
[ "dp", "greedy", "math" ]
null
null
stdin_stdout
2,900
{ "solved_count": 658 }
2026-08-10T02:20:32.917453+00:00
codeforces:321-C
codeforces
321-C
Ciel the Commander
https://codeforces.com/problemset/problem/321/C
[ "constructive algorithms", "dfs and similar", "divide and conquer", "greedy", "trees" ]
null
null
stdin_stdout
2,100
{ "solved_count": 9818 }
2026-08-10T02:20:32.917453+00:00
codeforces:321-B
codeforces
321-B
Ciel and Duel
https://codeforces.com/problemset/problem/321/B
[ "dp", "flows", "greedy" ]
null
null
stdin_stdout
1,900
{ "solved_count": 3938 }
2026-08-10T02:20:32.917453+00:00
codeforces:321-A
codeforces
321-A
Ciel and Robot
https://codeforces.com/problemset/problem/321/A
[ "binary search", "implementation", "math" ]
null
null
stdin_stdout
1,700
{ "solved_count": 3929 }
2026-08-10T02:20:32.917453+00:00
codeforces:320-B
codeforces
320-B
Ping-Pong (Easy Version)
https://codeforces.com/problemset/problem/320/B
[ "dfs and similar", "graphs" ]
null
null
stdin_stdout
1,500
{ "solved_count": 7871 }
2026-08-10T02:20:32.917453+00:00
codeforces:320-A
codeforces
320-A
Magic Numbers
https://codeforces.com/problemset/problem/320/A
[ "brute force", "greedy" ]
null
null
stdin_stdout
900
{ "solved_count": 46299 }
2026-08-10T02:20:32.917453+00:00
codeforces:319-E
codeforces
319-E
Ping-Pong
https://codeforces.com/problemset/problem/319/E
[ "data structures" ]
null
null
stdin_stdout
3,000
{ "solved_count": 818 }
2026-08-10T02:20:32.917453+00:00
codeforces:319-D
codeforces
319-D
Have You Ever Heard About the Word?
https://codeforces.com/problemset/problem/319/D
[ "greedy", "hashing", "string suffix structures", "strings" ]
null
null
stdin_stdout
2,800
{ "solved_count": 791 }
2026-08-10T02:20:32.917453+00:00
codeforces:319-C
codeforces
319-C
Kalila and Dimna in the Logging Industry
https://codeforces.com/problemset/problem/319/C
[ "dp", "geometry" ]
null
null
stdin_stdout
2,100
{ "solved_count": 6906 }
2026-08-10T02:20:32.917453+00:00
codeforces:319-B
codeforces
319-B
Psychos in a Line
https://codeforces.com/problemset/problem/319/B
[ "data structures", "implementation" ]
null
null
stdin_stdout
1,900
{ "solved_count": 4902 }
2026-08-10T02:20:32.917453+00:00
codeforces:319-A
codeforces
319-A
Malek Dance Club
https://codeforces.com/problemset/problem/319/A
[ "combinatorics", "math" ]
null
null
stdin_stdout
1,600
{ "solved_count": 3043 }
2026-08-10T02:20:32.917453+00:00
codeforces:318-B
codeforces
318-B
Strings of Power
https://codeforces.com/problemset/problem/318/B
[ "implementation", "strings", "two pointers" ]
null
null
stdin_stdout
1,300
{ "solved_count": 8381 }
2026-08-10T02:20:32.917453+00:00
codeforces:318-A
codeforces
318-A
Even Odds
https://codeforces.com/problemset/problem/318/A
[ "math" ]
null
null
stdin_stdout
900
{ "solved_count": 147209 }
2026-08-10T02:20:32.917453+00:00
codeforces:317-E
codeforces
317-E
Princess and Her Shadow
https://codeforces.com/problemset/problem/317/E
[ "constructive algorithms", "shortest paths" ]
null
null
stdin_stdout
3,100
{ "solved_count": 175 }
2026-08-10T02:20:32.917453+00:00
codeforces:317-D
codeforces
317-D
Game with Powers
https://codeforces.com/problemset/problem/317/D
[ "dp", "games" ]
null
null
stdin_stdout
2,300
{ "solved_count": 1302 }
2026-08-10T02:20:32.917453+00:00
codeforces:317-C
codeforces
317-C
Balance
https://codeforces.com/problemset/problem/317/C
[ "constructive algorithms", "dfs and similar", "graphs", "trees" ]
null
null
stdin_stdout
2,500
{ "solved_count": 584 }
2026-08-10T02:20:32.917453+00:00
codeforces:317-B
codeforces
317-B
Ants
https://codeforces.com/problemset/problem/317/B
[ "brute force", "implementation" ]
null
null
stdin_stdout
2,000
{ "solved_count": 1687 }
2026-08-10T02:20:32.917453+00:00
codeforces:317-A
codeforces
317-A
Perfect Pair
https://codeforces.com/problemset/problem/317/A
[ "brute force" ]
null
null
stdin_stdout
1,600
{ "solved_count": 4957 }
2026-08-10T02:20:32.917453+00:00
codeforces:316-G3
codeforces
316-G3
Good Substrings
https://codeforces.com/problemset/problem/316/G3
[ "string suffix structures" ]
null
null
stdin_stdout
2,400
{ "solved_count": 546 }
2026-08-10T02:20:32.917453+00:00
codeforces:316-G2
codeforces
316-G2
Good Substrings
https://codeforces.com/problemset/problem/316/G2
[ "string suffix structures" ]
null
null
stdin_stdout
2,200
{ "solved_count": 521 }
2026-08-10T02:20:32.917453+00:00
codeforces:316-G1
codeforces
316-G1
Good Substrings
https://codeforces.com/problemset/problem/316/G1
[ "hashing", "strings" ]
null
null
stdin_stdout
1,700
{ "solved_count": 1093 }
2026-08-10T02:20:32.917453+00:00
codeforces:316-F3
codeforces
316-F3
Suns and Rays
https://codeforces.com/problemset/problem/316/F3
[ "constructive algorithms", "dfs and similar", "implementation" ]
null
null
stdin_stdout
2,200
{ "solved_count": 198 }
2026-08-10T02:20:32.917453+00:00
codeforces:316-F2
codeforces
316-F2
Suns and Rays
https://codeforces.com/problemset/problem/316/F2
[]
null
null
stdin_stdout
2,300
{ "solved_count": 178 }
2026-08-10T02:20:32.917453+00:00
codeforces:316-F1
codeforces
316-F1
Suns and Rays
https://codeforces.com/problemset/problem/316/F1
[ "dfs and similar", "implementation" ]
null
null
stdin_stdout
2,200
{ "solved_count": 203 }
2026-08-10T02:20:32.917453+00:00
codeforces:316-E3
codeforces
316-E3
Summer Homework
https://codeforces.com/problemset/problem/316/E3
[ "data structures", "math" ]
null
null
stdin_stdout
2,300
{ "solved_count": 591 }
2026-08-10T02:20:32.917453+00:00
codeforces:316-E2
codeforces
316-E2
Summer Homework
https://codeforces.com/problemset/problem/316/E2
[ "data structures", "math" ]
null
null
stdin_stdout
2,300
{ "solved_count": 439 }
2026-08-10T02:20:32.917453+00:00
codeforces:316-E1
codeforces
316-E1
Summer Homework
https://codeforces.com/problemset/problem/316/E1
[ "brute force", "data structures" ]
null
null
stdin_stdout
1,500
{ "solved_count": 1561 }
2026-08-10T02:20:32.917453+00:00
codeforces:316-D3
codeforces
316-D3
PE Lesson
https://codeforces.com/problemset/problem/316/D3
[ "dp", "math" ]
null
null
stdin_stdout
2,400
{ "solved_count": 747 }
2026-08-10T02:20:32.917453+00:00
codeforces:316-D2
codeforces
316-D2
PE Lesson
https://codeforces.com/problemset/problem/316/D2
[ "dp" ]
null
null
stdin_stdout
2,300
{ "solved_count": 551 }
2026-08-10T02:20:32.917453+00:00
codeforces:316-D1
codeforces
316-D1
PE Lesson
https://codeforces.com/problemset/problem/316/D1
[ "brute force", "dp" ]
null
null
stdin_stdout
2,300
{ "solved_count": 631 }
2026-08-10T02:20:32.917453+00:00
codeforces:316-C2
codeforces
316-C2
Tidying Up
https://codeforces.com/problemset/problem/316/C2
[ "flows", "graph matchings" ]
null
null
stdin_stdout
2,300
{ "solved_count": 670 }
2026-08-10T02:20:32.917453+00:00
codeforces:316-C1
codeforces
316-C1
Tidying Up
https://codeforces.com/problemset/problem/316/C1
[ "flows" ]
null
null
stdin_stdout
2,200
{ "solved_count": 615 }
2026-08-10T02:20:32.917453+00:00
codeforces:316-B2
codeforces
316-B2
EKG
https://codeforces.com/problemset/problem/316/B2
[ "dfs and similar", "dp" ]
null
null
stdin_stdout
1,600
{ "solved_count": 1794 }
2026-08-10T02:20:32.917453+00:00
codeforces:316-B1
codeforces
316-B1
EKG
https://codeforces.com/problemset/problem/316/B1
[ "brute force", "dfs and similar" ]
null
null
stdin_stdout
1,500
{ "solved_count": 1506 }
2026-08-10T02:20:32.917453+00:00
codeforces:316-A2
codeforces
316-A2
Special Task
https://codeforces.com/problemset/problem/316/A2
[ "math" ]
null
null
stdin_stdout
1,400
{ "solved_count": 2311 }
2026-08-10T02:20:32.917453+00:00
codeforces:316-A1
codeforces
316-A1
Special Task
https://codeforces.com/problemset/problem/316/A1
[ "greedy" ]
null
null
stdin_stdout
1,100
{ "solved_count": 2907 }
2026-08-10T02:20:32.917453+00:00
codeforces:315-B
codeforces
315-B
Sereja and Array
https://codeforces.com/problemset/problem/315/B
[ "implementation" ]
null
null
stdin_stdout
1,200
{ "solved_count": 7799 }
2026-08-10T02:20:32.917453+00:00
codeforces:315-A
codeforces
315-A
Sereja and Bottles
https://codeforces.com/problemset/problem/315/A
[ "brute force" ]
null
null
stdin_stdout
1,400
{ "solved_count": 12442 }
2026-08-10T02:20:32.917453+00:00
codeforces:314-E
codeforces
314-E
Sereja and Squares
https://codeforces.com/problemset/problem/314/E
[ "dp" ]
null
null
stdin_stdout
2,900
{ "solved_count": 440 }
2026-08-10T02:20:32.917453+00:00
codeforces:314-D
codeforces
314-D
Sereja and Straight Lines
https://codeforces.com/problemset/problem/314/D
[ "binary search", "data structures", "geometry", "sortings", "two pointers" ]
null
null
stdin_stdout
2,500
{ "solved_count": 620 }
2026-08-10T02:20:32.917453+00:00
codeforces:314-C
codeforces
314-C
Sereja and Subsequences
https://codeforces.com/problemset/problem/314/C
[ "data structures", "dp" ]
null
null
stdin_stdout
2,000
{ "solved_count": 2096 }
2026-08-10T02:20:32.917453+00:00
codeforces:314-B
codeforces
314-B
Sereja and Periods
https://codeforces.com/problemset/problem/314/B
[ "binary search", "dfs and similar", "strings" ]
null
null
stdin_stdout
2,000
{ "solved_count": 1654 }
2026-08-10T02:20:32.917453+00:00
codeforces:314-A
codeforces
314-A
Sereja and Contest
https://codeforces.com/problemset/problem/314/A
[ "implementation" ]
null
null
stdin_stdout
1,600
{ "solved_count": 2194 }
2026-08-10T02:20:32.917453+00:00
codeforces:313-E
codeforces
313-E
Ilya and Two Numbers
https://codeforces.com/problemset/problem/313/E
[ "constructive algorithms", "data structures", "dsu", "greedy" ]
null
null
stdin_stdout
2,300
{ "solved_count": 635 }
2026-08-10T02:20:32.917453+00:00
codeforces:313-D
codeforces
313-D
Ilya and Roads
https://codeforces.com/problemset/problem/313/D
[ "dp" ]
null
null
stdin_stdout
2,100
{ "solved_count": 1749 }
2026-08-10T02:20:32.917453+00:00
codeforces:313-C
codeforces
313-C
Ilya and Matrix
https://codeforces.com/problemset/problem/313/C
[ "constructive algorithms", "greedy", "implementation", "sortings" ]
null
null
stdin_stdout
1,400
{ "solved_count": 5999 }
2026-08-10T02:20:32.917453+00:00
codeforces:313-B
codeforces
313-B
Ilya and Queries
https://codeforces.com/problemset/problem/313/B
[ "dp", "implementation" ]
null
null
stdin_stdout
1,100
{ "solved_count": 56831 }
2026-08-10T02:20:32.917453+00:00
codeforces:313-A
codeforces
313-A
Ilya and Bank Account
https://codeforces.com/problemset/problem/313/A
[ "implementation", "number theory" ]
null
null
stdin_stdout
900
{ "solved_count": 66437 }
2026-08-10T02:20:32.917453+00:00
codeforces:312-B
codeforces
312-B
Archer
https://codeforces.com/problemset/problem/312/B
[ "math", "probabilities" ]
null
null
stdin_stdout
1,300
{ "solved_count": 13791 }
2026-08-10T02:20:32.917453+00:00
codeforces:312-A
codeforces
312-A
Whose sentence is it?
https://codeforces.com/problemset/problem/312/A
[ "implementation", "strings" ]
null
null
stdin_stdout
1,100
{ "solved_count": 5419 }
2026-08-10T02:20:32.917453+00:00
codeforces:311-E
codeforces
311-E
Biologist
https://codeforces.com/problemset/problem/311/E
[ "flows" ]
null
null
stdin_stdout
2,300
{ "solved_count": 1674 }
2026-08-10T02:20:32.917453+00:00
codeforces:311-D
codeforces
311-D
Interval Cubing
https://codeforces.com/problemset/problem/311/D
[ "data structures", "math" ]
null
null
stdin_stdout
2,600
{ "solved_count": 833 }
2026-08-10T02:20:32.917453+00:00
codeforces:311-C
codeforces
311-C
Fetch the Treasure
https://codeforces.com/problemset/problem/311/C
[ "brute force", "data structures", "graphs", "shortest paths" ]
null
null
stdin_stdout
2,500
{ "solved_count": 602 }
2026-08-10T02:20:32.917453+00:00
codeforces:311-B
codeforces
311-B
Cats Transport
https://codeforces.com/problemset/problem/311/B
[ "data structures", "dp" ]
null
null
stdin_stdout
2,400
{ "solved_count": 4490 }
2026-08-10T02:20:32.917453+00:00
codeforces:311-A
codeforces
311-A
The Closest Pair
https://codeforces.com/problemset/problem/311/A
[ "constructive algorithms", "implementation" ]
null
null
stdin_stdout
1,300
{ "solved_count": 4246 }
2026-08-10T02:20:32.917453+00:00
codeforces:309-E
codeforces
309-E
Sheep
https://codeforces.com/problemset/problem/309/E
[ "binary search", "greedy" ]
null
null
stdin_stdout
2,900
{ "solved_count": 301 }
2026-08-10T02:20:32.917453+00:00
codeforces:309-D
codeforces
309-D
Tennis Rackets
https://codeforces.com/problemset/problem/309/D
[ "brute force", "geometry" ]
null
null
stdin_stdout
2,700
{ "solved_count": 204 }
2026-08-10T02:20:32.917453+00:00
codeforces:309-C
codeforces
309-C
Memory for Arrays
https://codeforces.com/problemset/problem/309/C
[ "binary search", "bitmasks", "greedy" ]
null
null
stdin_stdout
1,900
{ "solved_count": 1499 }
2026-08-10T02:20:32.917453+00:00
codeforces:309-B
codeforces
309-B
Context Advertising
https://codeforces.com/problemset/problem/309/B
[ "dp", "two pointers" ]
null
null
stdin_stdout
2,100
{ "solved_count": 966 }
2026-08-10T02:20:32.917453+00:00
codeforces:309-A
codeforces
309-A
Morning run
https://codeforces.com/problemset/problem/309/A
[ "binary search", "math", "two pointers" ]
null
null
stdin_stdout
2,000
{ "solved_count": 559 }
2026-08-10T02:20:32.917453+00:00
codeforces:306-D
codeforces
306-D
Polygon
https://codeforces.com/problemset/problem/306/D
[ "constructive algorithms", "geometry" ]
null
null
stdin_stdout
2,300
{ "solved_count": 340 }
2026-08-10T02:20:32.917453+00:00
codeforces:306-C
codeforces
306-C
White, Black and White Again
https://codeforces.com/problemset/problem/306/C
[ "combinatorics", "number theory" ]
null
null
stdin_stdout
2,100
{ "solved_count": 665 }
2026-08-10T02:20:32.917453+00:00
codeforces:306-B
codeforces
306-B
Optimizer
https://codeforces.com/problemset/problem/306/B
[ "data structures", "greedy", "sortings" ]
null
null
stdin_stdout
2,100
{ "solved_count": 534 }
2026-08-10T02:20:32.917453+00:00
codeforces:306-A
codeforces
306-A
Candies
https://codeforces.com/problemset/problem/306/A
[ "implementation" ]
null
null
stdin_stdout
800
{ "solved_count": 8270 }
2026-08-10T02:20:32.917453+00:00
codeforces:305-E
codeforces
305-E
Playing with String
https://codeforces.com/problemset/problem/305/E
[ "games" ]
null
null
stdin_stdout
2,300
{ "solved_count": 794 }
2026-08-10T02:20:32.917453+00:00
codeforces:305-D
codeforces
305-D
Olya and Graph
https://codeforces.com/problemset/problem/305/D
[ "combinatorics", "math" ]
null
null
stdin_stdout
2,200
{ "solved_count": 583 }
2026-08-10T02:20:32.917453+00:00
codeforces:305-C
codeforces
305-C
Ivan and Powers of Two
https://codeforces.com/problemset/problem/305/C
[ "greedy", "implementation" ]
null
null
stdin_stdout
1,600
{ "solved_count": 2679 }
2026-08-10T02:20:32.917453+00:00
codeforces:305-B
codeforces
305-B
Continued Fractions
https://codeforces.com/problemset/problem/305/B
[ "brute force", "implementation", "math" ]
null
null
stdin_stdout
1,700
{ "solved_count": 2320 }
2026-08-10T02:20:32.917453+00:00
codeforces:305-A
codeforces
305-A
Strange Addition
https://codeforces.com/problemset/problem/305/A
[ "brute force", "constructive algorithms", "implementation" ]
null
null
stdin_stdout
1,600
{ "solved_count": 5263 }
2026-08-10T02:20:32.917453+00:00
codeforces:304-B
codeforces
304-B
Calendar
https://codeforces.com/problemset/problem/304/B
[ "brute force", "implementation" ]
null
null
stdin_stdout
1,300
{ "solved_count": 3181 }
2026-08-10T02:20:32.917453+00:00
codeforces:304-A
codeforces
304-A
Pythagorean Theorem II
https://codeforces.com/problemset/problem/304/A
[ "brute force", "math" ]
null
null
stdin_stdout
1,200
{ "solved_count": 12189 }
2026-08-10T02:20:32.917453+00:00
codeforces:303-E
codeforces
303-E
Random Ranking
https://codeforces.com/problemset/problem/303/E
[ "dp", "math", "probabilities" ]
null
null
stdin_stdout
3,000
{ "solved_count": 473 }
2026-08-10T02:20:32.917453+00:00
codeforces:303-D
codeforces
303-D
Rotatable Number
https://codeforces.com/problemset/problem/303/D
[ "math", "number theory" ]
null
null
stdin_stdout
2,600
{ "solved_count": 440 }
2026-08-10T02:20:32.917453+00:00
codeforces:303-C
codeforces
303-C
Minimum Modular
https://codeforces.com/problemset/problem/303/C
[ "brute force", "graphs", "math", "number theory" ]
null
null
stdin_stdout
2,400
{ "solved_count": 988 }
2026-08-10T02:20:32.917453+00:00
codeforces:303-B
codeforces
303-B
Rectangle Puzzle II
https://codeforces.com/problemset/problem/303/B
[ "implementation", "math" ]
null
null
stdin_stdout
1,700
{ "solved_count": 1433 }
2026-08-10T02:20:32.917453+00:00
codeforces:303-A
codeforces
303-A
Lucky Permutation Triple
https://codeforces.com/problemset/problem/303/A
[ "constructive algorithms", "implementation", "math" ]
null
null
stdin_stdout
1,300
{ "solved_count": 8650 }
2026-08-10T02:20:32.917453+00:00
codeforces:302-B
codeforces
302-B
Eugeny and Play List
https://codeforces.com/problemset/problem/302/B
[ "binary search", "implementation", "two pointers" ]
null
null
stdin_stdout
1,200
{ "solved_count": 9531 }
2026-08-10T02:20:32.917453+00:00
codeforces:302-A
codeforces
302-A
Eugeny and Array
https://codeforces.com/problemset/problem/302/A
[ "implementation" ]
null
null
stdin_stdout
800
{ "solved_count": 9846 }
2026-08-10T02:20:32.917453+00:00
codeforces:301-E
codeforces
301-E
Yaroslav and Arrangements
https://codeforces.com/problemset/problem/301/E
[ "dp" ]
null
null
stdin_stdout
2,800
{ "solved_count": 511 }
2026-08-10T02:20:32.917453+00:00
codeforces:301-D
codeforces
301-D
Yaroslav and Divisors
https://codeforces.com/problemset/problem/301/D
[ "data structures" ]
null
null
stdin_stdout
2,200
{ "solved_count": 3154 }
2026-08-10T02:20:32.917453+00:00
codeforces:301-C
codeforces
301-C
Yaroslav and Algorithm
https://codeforces.com/problemset/problem/301/C
[ "constructive algorithms" ]
null
null
stdin_stdout
2,500
{ "solved_count": 513 }
2026-08-10T02:20:32.917453+00:00