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:842-A | codeforces | 842-A | Kirill And The Game | https://codeforces.com/problemset/problem/842/A | [
"brute force",
"two pointers"
] | null | null | stdin_stdout | 1,200 | {
"solved_count": 11410
} | 2026-11-02T05:37:07.883505+00:00 |
codeforces:841-B | codeforces | 841-B | Godsend | https://codeforces.com/problemset/problem/841/B | [
"games",
"math"
] | null | null | stdin_stdout | 1,100 | {
"solved_count": 13344
} | 2026-11-02T05:37:07.883505+00:00 |
codeforces:841-A | codeforces | 841-A | Generous Kefa | https://codeforces.com/problemset/problem/841/A | [
"brute force",
"implementation"
] | null | null | stdin_stdout | 900 | {
"solved_count": 14240
} | 2026-11-02T05:37:07.883505+00:00 |
codeforces:840-E | codeforces | 840-E | In a Trap | https://codeforces.com/problemset/problem/840/E | [
"trees"
] | null | null | stdin_stdout | 3,200 | {
"solved_count": 870
} | 2026-11-02T05:37:07.883505+00:00 |
codeforces:840-D | codeforces | 840-D | Destiny | https://codeforces.com/problemset/problem/840/D | [
"data structures",
"probabilities"
] | null | null | stdin_stdout | 2,500 | {
"solved_count": 4349
} | 2026-11-02T05:37:07.883505+00:00 |
codeforces:840-C | codeforces | 840-C | On the Bench | https://codeforces.com/problemset/problem/840/C | [
"combinatorics",
"dp"
] | null | null | stdin_stdout | 2,500 | {
"solved_count": 2257
} | 2026-11-02T05:37:07.883505+00:00 |
codeforces:840-B | codeforces | 840-B | Leha and another game about graph | https://codeforces.com/problemset/problem/840/B | [
"constructive algorithms",
"data structures",
"dfs and similar",
"dp",
"graphs"
] | null | null | stdin_stdout | 2,100 | {
"solved_count": 2953
} | 2026-11-02T05:37:07.883505+00:00 |
codeforces:840-A | codeforces | 840-A | Leha and Function | https://codeforces.com/problemset/problem/840/A | [
"combinatorics",
"greedy",
"math",
"number theory",
"sortings"
] | null | null | stdin_stdout | 1,300 | {
"solved_count": 7671
} | 2026-11-02T05:37:07.883505+00:00 |
codeforces:839-E | codeforces | 839-E | Mother of Dragons | https://codeforces.com/problemset/problem/839/E | [
"brute force",
"graphs",
"math",
"meet-in-the-middle"
] | null | null | stdin_stdout | 2,700 | {
"solved_count": 1078
} | 2026-11-02T05:37:07.883505+00:00 |
codeforces:839-D | codeforces | 839-D | Winter is here | https://codeforces.com/problemset/problem/839/D | [
"combinatorics",
"dp",
"math",
"number theory"
] | null | null | stdin_stdout | 2,200 | {
"solved_count": 3783
} | 2026-11-02T05:37:07.883505+00:00 |
codeforces:839-C | codeforces | 839-C | Journey | https://codeforces.com/problemset/problem/839/C | [
"dfs and similar",
"dp",
"graphs",
"probabilities",
"trees"
] | null | null | stdin_stdout | 1,500 | {
"solved_count": 21601
} | 2026-11-02T05:37:07.883505+00:00 |
codeforces:839-B | codeforces | 839-B | Game of the Rows | https://codeforces.com/problemset/problem/839/B | [
"brute force",
"greedy",
"implementation"
] | null | null | stdin_stdout | 1,900 | {
"solved_count": 3458
} | 2026-11-02T05:37:07.883505+00:00 |
codeforces:839-A | codeforces | 839-A | Arya and Bran | https://codeforces.com/problemset/problem/839/A | [
"implementation"
] | null | null | stdin_stdout | 900 | {
"solved_count": 15128
} | 2026-11-02T05:37:07.883505+00:00 |
codeforces:838-F | codeforces | 838-F | Expected Earnings | https://codeforces.com/problemset/problem/838/F | [] | null | null | stdin_stdout | 2,800 | {
"solved_count": 168
} | 2026-11-02T05:37:07.883505+00:00 |
codeforces:838-E | codeforces | 838-E | Convex Countour | https://codeforces.com/problemset/problem/838/E | [
"dp"
] | null | null | stdin_stdout | 2,300 | {
"solved_count": 461
} | 2026-11-02T05:37:07.883505+00:00 |
codeforces:838-D | codeforces | 838-D | Airplane Arrangements | https://codeforces.com/problemset/problem/838/D | [
"math",
"number theory"
] | null | null | stdin_stdout | 2,700 | {
"solved_count": 1216
} | 2026-11-02T05:37:07.883505+00:00 |
codeforces:838-C | codeforces | 838-C | Future Failure | https://codeforces.com/problemset/problem/838/C | [
"dp",
"games"
] | null | null | stdin_stdout | 2,800 | {
"solved_count": 453
} | 2026-11-02T05:37:07.883505+00:00 |
codeforces:838-B | codeforces | 838-B | Diverging Directions | https://codeforces.com/problemset/problem/838/B | [
"data structures",
"dfs and similar",
"trees"
] | null | null | stdin_stdout | 2,100 | {
"solved_count": 1208
} | 2026-11-02T05:37:07.883505+00:00 |
codeforces:838-A | codeforces | 838-A | Binary Blocks | https://codeforces.com/problemset/problem/838/A | [
"brute force"
] | null | null | stdin_stdout | 1,400 | {
"solved_count": 1099
} | 2026-11-02T05:37:07.883505+00:00 |
codeforces:837-G | codeforces | 837-G | Functions On The Segments | https://codeforces.com/problemset/problem/837/G | [
"data structures"
] | null | null | stdin_stdout | 2,500 | {
"solved_count": 1081
} | 2026-11-02T05:37:07.883505+00:00 |
codeforces:837-F | codeforces | 837-F | Prefix Sums | https://codeforces.com/problemset/problem/837/F | [
"binary search",
"brute force",
"combinatorics",
"math",
"matrices"
] | null | null | stdin_stdout | 2,400 | {
"solved_count": 1108
} | 2026-11-02T05:37:07.883505+00:00 |
codeforces:837-E | codeforces | 837-E | Vasya's Function | https://codeforces.com/problemset/problem/837/E | [
"binary search",
"implementation",
"math"
] | null | null | stdin_stdout | 2,100 | {
"solved_count": 2228
} | 2026-11-02T05:37:07.883505+00:00 |
codeforces:837-D | codeforces | 837-D | Round Subset | https://codeforces.com/problemset/problem/837/D | [
"dp",
"math"
] | null | null | stdin_stdout | 2,100 | {
"solved_count": 8455
} | 2026-11-02T05:37:07.883505+00:00 |
codeforces:837-C | codeforces | 837-C | Two Seals | https://codeforces.com/problemset/problem/837/C | [
"brute force",
"implementation"
] | null | null | stdin_stdout | 1,500 | {
"solved_count": 4735
} | 2026-11-02T05:37:07.883505+00:00 |
codeforces:837-B | codeforces | 837-B | Flag of Berland | https://codeforces.com/problemset/problem/837/B | [
"brute force",
"implementation"
] | null | null | stdin_stdout | 1,600 | {
"solved_count": 4491
} | 2026-11-02T05:37:07.883505+00:00 |
codeforces:837-A | codeforces | 837-A | Text Volume | https://codeforces.com/problemset/problem/837/A | [
"implementation"
] | null | null | stdin_stdout | 800 | {
"solved_count": 10360
} | 2026-11-02T05:37:07.883505+00:00 |
codeforces:835-F | codeforces | 835-F | Roads in the Kingdom | https://codeforces.com/problemset/problem/835/F | [
"dfs and similar",
"dp",
"graphs",
"trees"
] | null | null | stdin_stdout | 2,500 | {
"solved_count": 1373
} | 2026-11-02T05:37:07.883505+00:00 |
codeforces:835-E | codeforces | 835-E | The penguin's game | https://codeforces.com/problemset/problem/835/E | [
"binary search",
"constructive algorithms",
"interactive"
] | null | null | stdin_stdout | 2,400 | {
"solved_count": 1436
} | 2026-11-02T05:37:07.883505+00:00 |
codeforces:835-D | codeforces | 835-D | Palindromic characteristics | https://codeforces.com/problemset/problem/835/D | [
"brute force",
"dp",
"hashing",
"strings"
] | null | null | stdin_stdout | 1,900 | {
"solved_count": 4955
} | 2026-11-02T05:37:07.883505+00:00 |
codeforces:835-C | codeforces | 835-C | Star sky | https://codeforces.com/problemset/problem/835/C | [
"dp",
"implementation"
] | null | null | stdin_stdout | 1,600 | {
"solved_count": 9655
} | 2026-11-02T05:37:07.883505+00:00 |
codeforces:835-B | codeforces | 835-B | The number on the board | https://codeforces.com/problemset/problem/835/B | [
"greedy"
] | null | null | stdin_stdout | 1,100 | {
"solved_count": 11490
} | 2026-11-02T05:37:07.883505+00:00 |
codeforces:835-A | codeforces | 835-A | Key races | https://codeforces.com/problemset/problem/835/A | [
"math"
] | null | null | stdin_stdout | 800 | {
"solved_count": 22179
} | 2026-11-02T05:37:07.883505+00:00 |
codeforces:834-B | codeforces | 834-B | The Festive Evening | https://codeforces.com/problemset/problem/834/B | [
"data structures",
"implementation"
] | null | null | stdin_stdout | 1,100 | {
"solved_count": 9517
} | 2026-11-02T05:37:07.883505+00:00 |
codeforces:834-A | codeforces | 834-A | The Useless Toy | https://codeforces.com/problemset/problem/834/A | [
"implementation"
] | null | null | stdin_stdout | 900 | {
"solved_count": 9184
} | 2026-11-02T05:37:07.883505+00:00 |
codeforces:833-E | codeforces | 833-E | Caramel Clouds | https://codeforces.com/problemset/problem/833/E | [
"data structures",
"dp",
"sortings"
] | null | null | stdin_stdout | 3,400 | {
"solved_count": 331
} | 2026-11-02T05:37:07.883505+00:00 |
codeforces:833-D | codeforces | 833-D | Red-Black Cobweb | https://codeforces.com/problemset/problem/833/D | [
"data structures",
"divide and conquer",
"implementation",
"trees"
] | null | null | stdin_stdout | 2,800 | {
"solved_count": 549
} | 2026-11-02T05:37:07.883505+00:00 |
codeforces:833-C | codeforces | 833-C | Ever-Hungry Krakozyabra | https://codeforces.com/problemset/problem/833/C | [
"brute force",
"combinatorics",
"greedy",
"math"
] | null | null | stdin_stdout | 2,700 | {
"solved_count": 546
} | 2026-11-02T05:37:07.883505+00:00 |
codeforces:833-B | codeforces | 833-B | The Bakery | https://codeforces.com/problemset/problem/833/B | [
"binary search",
"data structures",
"divide and conquer",
"dp",
"two pointers"
] | null | null | stdin_stdout | 2,200 | {
"solved_count": 7326
} | 2026-11-02T05:37:07.883505+00:00 |
codeforces:833-A | codeforces | 833-A | The Meaningless Game | https://codeforces.com/problemset/problem/833/A | [
"math",
"number theory"
] | null | null | stdin_stdout | 1,700 | {
"solved_count": 6655
} | 2026-11-02T05:37:07.883505+00:00 |
codeforces:832-E | codeforces | 832-E | Vasya and Shifts | https://codeforces.com/problemset/problem/832/E | [
"matrices"
] | null | null | stdin_stdout | 2,600 | {
"solved_count": 415
} | 2026-11-02T05:37:07.883505+00:00 |
codeforces:832-D | codeforces | 832-D | Misha, Grisha and Underground | https://codeforces.com/problemset/problem/832/D | [
"dfs and similar",
"graphs",
"trees"
] | null | null | stdin_stdout | 1,900 | {
"solved_count": 4897
} | 2026-11-02T05:37:07.883505+00:00 |
codeforces:832-C | codeforces | 832-C | Strange Radiation | https://codeforces.com/problemset/problem/832/C | [
"binary search",
"implementation",
"math"
] | null | null | stdin_stdout | 2,500 | {
"solved_count": 513
} | 2026-11-02T05:37:07.883505+00:00 |
codeforces:832-B | codeforces | 832-B | Petya and Exam | https://codeforces.com/problemset/problem/832/B | [
"implementation",
"strings"
] | null | null | stdin_stdout | 1,600 | {
"solved_count": 4747
} | 2026-11-02T05:37:07.883505+00:00 |
codeforces:832-A | codeforces | 832-A | Sasha and Sticks | https://codeforces.com/problemset/problem/832/A | [
"games",
"math"
] | null | null | stdin_stdout | 800 | {
"solved_count": 22440
} | 2026-11-02T05:37:07.883505+00:00 |
codeforces:831-C | codeforces | 831-C | Jury Marks | https://codeforces.com/problemset/problem/831/C | [
"brute force",
"constructive algorithms"
] | null | null | stdin_stdout | 1,700 | {
"solved_count": 5800
} | 2026-11-02T05:37:07.883505+00:00 |
codeforces:831-B | codeforces | 831-B | Keyboard Layouts | https://codeforces.com/problemset/problem/831/B | [
"implementation",
"strings"
] | null | null | stdin_stdout | 800 | {
"solved_count": 15926
} | 2026-11-02T05:37:07.883505+00:00 |
codeforces:831-A | codeforces | 831-A | Unimodal Array | https://codeforces.com/problemset/problem/831/A | [
"implementation"
] | null | null | stdin_stdout | 1,000 | {
"solved_count": 11285
} | 2026-11-02T05:37:07.883505+00:00 |
codeforces:830-E | codeforces | 830-E | Perpetual Motion Machine | https://codeforces.com/problemset/problem/830/E | [
"constructive algorithms",
"dp",
"graphs",
"implementation",
"math",
"trees"
] | null | null | stdin_stdout | 3,100 | {
"solved_count": 407
} | 2026-11-02T05:37:07.883505+00:00 |
codeforces:830-D | codeforces | 830-D | Singer House | https://codeforces.com/problemset/problem/830/D | [
"combinatorics",
"dp",
"graphs",
"trees"
] | null | null | stdin_stdout | 2,800 | {
"solved_count": 1060
} | 2026-11-02T05:37:07.883505+00:00 |
codeforces:830-C | codeforces | 830-C | Bamboo Partition | https://codeforces.com/problemset/problem/830/C | [
"brute force",
"data structures",
"implementation",
"math",
"number theory",
"sortings",
"two pointers"
] | null | null | stdin_stdout | 2,300 | {
"solved_count": 1404
} | 2026-11-02T05:37:07.883505+00:00 |
codeforces:830-B | codeforces | 830-B | Cards Sorting | https://codeforces.com/problemset/problem/830/B | [
"data structures",
"implementation",
"sortings"
] | null | null | stdin_stdout | 1,600 | {
"solved_count": 3102
} | 2026-11-02T05:37:07.883505+00:00 |
codeforces:830-A | codeforces | 830-A | Office Keys | https://codeforces.com/problemset/problem/830/A | [
"binary search",
"brute force",
"dp",
"greedy",
"sortings"
] | null | null | stdin_stdout | 1,800 | {
"solved_count": 8511
} | 2026-11-02T05:37:07.883505+00:00 |
codeforces:828-B | codeforces | 828-B | Black Square | https://codeforces.com/problemset/problem/828/B | [
"implementation"
] | null | null | stdin_stdout | 1,300 | {
"solved_count": 6227
} | 2026-11-02T05:37:07.883505+00:00 |
codeforces:828-A | codeforces | 828-A | Restaurant Tables | https://codeforces.com/problemset/problem/828/A | [
"implementation"
] | null | null | stdin_stdout | 1,200 | {
"solved_count": 8547
} | 2026-11-02T05:37:07.883505+00:00 |
codeforces:827-F | codeforces | 827-F | Dirty Arkady's Kitchen | https://codeforces.com/problemset/problem/827/F | [
"data structures",
"dp",
"graphs",
"shortest paths"
] | null | null | stdin_stdout | 3,200 | {
"solved_count": 628
} | 2026-11-02T05:37:07.883505+00:00 |
codeforces:827-E | codeforces | 827-E | Rusty String | https://codeforces.com/problemset/problem/827/E | [
"fft",
"math",
"strings"
] | null | null | stdin_stdout | 2,700 | {
"solved_count": 1318
} | 2026-11-02T05:37:07.883505+00:00 |
codeforces:827-D | codeforces | 827-D | Best Edge Weight | https://codeforces.com/problemset/problem/827/D | [
"data structures",
"dfs and similar",
"graphs",
"trees"
] | null | null | stdin_stdout | 2,700 | {
"solved_count": 1557
} | 2026-11-02T05:37:07.883505+00:00 |
codeforces:827-C | codeforces | 827-C | DNA Evolution | https://codeforces.com/problemset/problem/827/C | [
"data structures",
"strings"
] | null | null | stdin_stdout | 2,100 | {
"solved_count": 1845
} | 2026-11-02T05:37:07.883505+00:00 |
codeforces:827-B | codeforces | 827-B | High Load | https://codeforces.com/problemset/problem/827/B | [
"constructive algorithms",
"greedy",
"implementation",
"trees"
] | null | null | stdin_stdout | 1,800 | {
"solved_count": 3760
} | 2026-11-02T05:37:07.883505+00:00 |
codeforces:827-A | codeforces | 827-A | String Reconstruction | https://codeforces.com/problemset/problem/827/A | [
"data structures",
"greedy",
"sortings",
"strings"
] | null | null | stdin_stdout | 1,700 | {
"solved_count": 4397
} | 2026-11-02T05:37:07.883505+00:00 |
codeforces:825-G | codeforces | 825-G | Tree Queries | https://codeforces.com/problemset/problem/825/G | [
"dfs and similar",
"graphs",
"trees"
] | null | null | stdin_stdout | 2,500 | {
"solved_count": 1566
} | 2026-11-02T05:37:07.883505+00:00 |
codeforces:825-F | codeforces | 825-F | String Compression | https://codeforces.com/problemset/problem/825/F | [
"dp",
"hashing",
"string suffix structures",
"strings"
] | null | null | stdin_stdout | 2,400 | {
"solved_count": 2180
} | 2026-11-02T05:37:07.883505+00:00 |
codeforces:825-E | codeforces | 825-E | Minimal Labels | https://codeforces.com/problemset/problem/825/E | [
"data structures",
"dfs and similar",
"graphs",
"greedy"
] | null | null | stdin_stdout | 2,300 | {
"solved_count": 4585
} | 2026-11-02T05:37:07.883505+00:00 |
codeforces:825-D | codeforces | 825-D | Suitable Replacement | https://codeforces.com/problemset/problem/825/D | [
"binary search",
"greedy",
"implementation"
] | null | null | stdin_stdout | 1,500 | {
"solved_count": 3880
} | 2026-11-02T05:37:07.883505+00:00 |
codeforces:825-C | codeforces | 825-C | Multi-judge Solving | https://codeforces.com/problemset/problem/825/C | [
"greedy",
"implementation"
] | null | null | stdin_stdout | 1,600 | {
"solved_count": 4959
} | 2026-11-02T05:37:07.883505+00:00 |
codeforces:825-B | codeforces | 825-B | Five-In-a-Row | https://codeforces.com/problemset/problem/825/B | [
"brute force",
"implementation"
] | null | null | stdin_stdout | 1,600 | {
"solved_count": 4890
} | 2026-11-02T05:37:07.883505+00:00 |
codeforces:825-A | codeforces | 825-A | Binary Protocol | https://codeforces.com/problemset/problem/825/A | [
"implementation"
] | null | null | stdin_stdout | 1,100 | {
"solved_count": 8308
} | 2026-11-02T05:37:07.883505+00:00 |
codeforces:822-F | codeforces | 822-F | Madness | https://codeforces.com/problemset/problem/822/F | [
"constructive algorithms",
"dfs and similar",
"trees"
] | null | null | stdin_stdout | 2,500 | {
"solved_count": 402
} | 2026-11-02T05:37:07.883505+00:00 |
codeforces:822-E | codeforces | 822-E | Liar | https://codeforces.com/problemset/problem/822/E | [
"binary search",
"dp",
"hashing",
"string suffix structures"
] | null | null | stdin_stdout | 2,400 | {
"solved_count": 1263
} | 2026-11-02T05:37:07.883505+00:00 |
codeforces:822-D | codeforces | 822-D | My pretty girl Noora | https://codeforces.com/problemset/problem/822/D | [
"brute force",
"dp",
"greedy",
"math",
"number theory"
] | null | null | stdin_stdout | 1,800 | {
"solved_count": 3319
} | 2026-11-02T05:37:07.883505+00:00 |
codeforces:822-C | codeforces | 822-C | Hacker, pack your bags! | https://codeforces.com/problemset/problem/822/C | [
"binary search",
"greedy",
"implementation",
"sortings"
] | null | null | stdin_stdout | 1,600 | {
"solved_count": 5001
} | 2026-11-02T05:37:07.883505+00:00 |
codeforces:822-B | codeforces | 822-B | Crossword solving | https://codeforces.com/problemset/problem/822/B | [
"brute force",
"implementation",
"strings"
] | null | null | stdin_stdout | 1,000 | {
"solved_count": 10518
} | 2026-11-02T05:37:07.883505+00:00 |
codeforces:822-A | codeforces | 822-A | I'm bored with life | https://codeforces.com/problemset/problem/822/A | [
"implementation",
"math",
"number theory"
] | null | null | stdin_stdout | 800 | {
"solved_count": 38143
} | 2026-11-02T05:37:07.883505+00:00 |
codeforces:821-E | codeforces | 821-E | Okabe and El Psy Kongroo | https://codeforces.com/problemset/problem/821/E | [
"dp",
"matrices"
] | null | null | stdin_stdout | 2,100 | {
"solved_count": 1724
} | 2026-11-02T05:37:07.883505+00:00 |
codeforces:821-D | codeforces | 821-D | Okabe and City | https://codeforces.com/problemset/problem/821/D | [
"dfs and similar",
"graphs",
"shortest paths"
] | null | null | stdin_stdout | 2,200 | {
"solved_count": 1869
} | 2026-11-02T05:37:07.883505+00:00 |
codeforces:821-C | codeforces | 821-C | Okabe and Boxes | https://codeforces.com/problemset/problem/821/C | [
"data structures",
"greedy",
"trees"
] | null | null | stdin_stdout | 1,500 | {
"solved_count": 8210
} | 2026-11-02T05:37:07.883505+00:00 |
codeforces:821-B | codeforces | 821-B | Okabe and Banana Trees | https://codeforces.com/problemset/problem/821/B | [
"brute force",
"math"
] | null | null | stdin_stdout | 1,300 | {
"solved_count": 6155
} | 2026-11-02T05:37:07.883505+00:00 |
codeforces:821-A | codeforces | 821-A | Okabe and Future Gadget Laboratory | https://codeforces.com/problemset/problem/821/A | [
"implementation"
] | null | null | stdin_stdout | 800 | {
"solved_count": 9080
} | 2026-11-02T05:37:07.883505+00:00 |
codeforces:820-C | codeforces | 820-C | Mister B and Boring Game | https://codeforces.com/problemset/problem/820/C | [
"games",
"greedy"
] | null | null | stdin_stdout | 2,200 | {
"solved_count": 537
} | 2026-11-02T05:37:07.883505+00:00 |
codeforces:820-B | codeforces | 820-B | Mister B and Angle in Polygon | https://codeforces.com/problemset/problem/820/B | [
"constructive algorithms",
"geometry",
"math"
] | null | null | stdin_stdout | 1,300 | {
"solved_count": 5575
} | 2026-11-02T05:37:07.883505+00:00 |
codeforces:820-A | codeforces | 820-A | Mister B and Book Reading | https://codeforces.com/problemset/problem/820/A | [
"implementation"
] | null | null | stdin_stdout | 900 | {
"solved_count": 8789
} | 2026-11-02T05:37:07.883505+00:00 |
codeforces:819-E | codeforces | 819-E | Mister B and Flight to the Moon | https://codeforces.com/problemset/problem/819/E | [
"constructive algorithms",
"graphs"
] | null | null | stdin_stdout | 2,800 | {
"solved_count": 662
} | 2026-11-02T05:37:07.883505+00:00 |
codeforces:819-D | codeforces | 819-D | Mister B and Astronomers | https://codeforces.com/problemset/problem/819/D | [
"number theory"
] | null | null | stdin_stdout | 2,900 | {
"solved_count": 436
} | 2026-11-02T05:37:07.883505+00:00 |
codeforces:819-C | codeforces | 819-C | Mister B and Beacons on Field | https://codeforces.com/problemset/problem/819/C | [
"number theory"
] | null | null | stdin_stdout | 2,900 | {
"solved_count": 293
} | 2026-11-02T05:37:07.883505+00:00 |
codeforces:819-B | codeforces | 819-B | Mister B and PR Shifts | https://codeforces.com/problemset/problem/819/B | [
"data structures",
"implementation",
"math"
] | null | null | stdin_stdout | 1,900 | {
"solved_count": 1809
} | 2026-11-02T05:37:07.883505+00:00 |
codeforces:818-G | codeforces | 818-G | Four Melodies | https://codeforces.com/problemset/problem/818/G | [
"flows",
"graphs"
] | null | null | stdin_stdout | 2,600 | {
"solved_count": 1121
} | 2026-11-02T05:37:07.883505+00:00 |
codeforces:818-F | codeforces | 818-F | Level Generation | https://codeforces.com/problemset/problem/818/F | [
"binary search",
"math",
"ternary search"
] | null | null | stdin_stdout | 2,100 | {
"solved_count": 2039
} | 2026-11-02T05:37:07.883505+00:00 |
codeforces:818-E | codeforces | 818-E | Card Game Again | https://codeforces.com/problemset/problem/818/E | [
"binary search",
"data structures",
"number theory",
"two pointers"
] | null | null | stdin_stdout | 1,900 | {
"solved_count": 2771
} | 2026-11-02T05:37:07.883505+00:00 |
codeforces:818-D | codeforces | 818-D | Multicolored Cars | https://codeforces.com/problemset/problem/818/D | [
"data structures",
"implementation"
] | null | null | stdin_stdout | 1,700 | {
"solved_count": 3886
} | 2026-11-02T05:37:07.883505+00:00 |
codeforces:818-C | codeforces | 818-C | Sofa Thief | https://codeforces.com/problemset/problem/818/C | [
"brute force",
"implementation"
] | null | null | stdin_stdout | 2,000 | {
"solved_count": 1422
} | 2026-11-02T05:37:07.883505+00:00 |
codeforces:818-B | codeforces | 818-B | Permutation Game | https://codeforces.com/problemset/problem/818/B | [
"implementation"
] | null | null | stdin_stdout | 1,600 | {
"solved_count": 3292
} | 2026-11-02T05:37:07.883505+00:00 |
codeforces:818-A | codeforces | 818-A | Diplomas and Certificates | https://codeforces.com/problemset/problem/818/A | [
"implementation",
"math"
] | null | null | stdin_stdout | 800 | {
"solved_count": 8066
} | 2026-11-02T05:37:07.883505+00:00 |
codeforces:817-F | codeforces | 817-F | MEX Queries | https://codeforces.com/problemset/problem/817/F | [
"binary search",
"data structures",
"trees"
] | null | null | stdin_stdout | 2,300 | {
"solved_count": 3579
} | 2026-11-02T05:37:07.883505+00:00 |
codeforces:817-E | codeforces | 817-E | Choosing The Commander | https://codeforces.com/problemset/problem/817/E | [
"bitmasks",
"data structures",
"trees"
] | null | null | stdin_stdout | 2,000 | {
"solved_count": 4110
} | 2026-11-02T05:37:07.883505+00:00 |
codeforces:817-D | codeforces | 817-D | Imbalanced Array | https://codeforces.com/problemset/problem/817/D | [
"data structures",
"divide and conquer",
"dsu",
"sortings"
] | null | null | stdin_stdout | 1,900 | {
"solved_count": 7138
} | 2026-11-02T05:37:07.883505+00:00 |
codeforces:817-C | codeforces | 817-C | Really Big Numbers | https://codeforces.com/problemset/problem/817/C | [
"binary search",
"brute force",
"dp",
"math"
] | null | null | stdin_stdout | 1,600 | {
"solved_count": 8760
} | 2026-11-02T05:37:07.883505+00:00 |
codeforces:817-B | codeforces | 817-B | Makes And The Product | https://codeforces.com/problemset/problem/817/B | [
"combinatorics",
"implementation",
"math",
"sortings"
] | null | null | stdin_stdout | 1,500 | {
"solved_count": 6581
} | 2026-11-02T05:37:07.883505+00:00 |
codeforces:817-A | codeforces | 817-A | Treasure Hunt | https://codeforces.com/problemset/problem/817/A | [
"implementation",
"math",
"number theory"
] | null | null | stdin_stdout | 1,200 | {
"solved_count": 7017
} | 2026-11-02T05:37:07.883505+00:00 |
codeforces:816-B | codeforces | 816-B | Karen and Coffee | https://codeforces.com/problemset/problem/816/B | [
"binary search",
"data structures",
"implementation"
] | null | null | stdin_stdout | 1,400 | {
"solved_count": 31271
} | 2026-11-02T05:37:07.883505+00:00 |
codeforces:816-A | codeforces | 816-A | Karen and Morning | https://codeforces.com/problemset/problem/816/A | [
"brute force",
"implementation"
] | null | null | stdin_stdout | 1,000 | {
"solved_count": 9894
} | 2026-11-02T05:37:07.883505+00:00 |
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