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codeforces:1659-F | codeforces | 1659-F | Tree and Permutation Game | https://codeforces.com/problemset/problem/1659/F | [
"dfs and similar",
"games",
"graphs",
"trees"
] | null | null | stdin_stdout | 3,000 | {
"solved_count": 259
} | 2026-08-10T02:20:32.917453+00:00 |
codeforces:1659-E | codeforces | 1659-E | AND-MEX Walk | https://codeforces.com/problemset/problem/1659/E | [
"bitmasks",
"brute force",
"constructive algorithms",
"dfs and similar",
"dsu",
"graphs"
] | null | null | stdin_stdout | 2,200 | {
"solved_count": 2029
} | 2026-08-10T02:20:32.917453+00:00 |
codeforces:1659-D | codeforces | 1659-D | Reverse Sort Sum | https://codeforces.com/problemset/problem/1659/D | [
"constructive algorithms",
"data structures",
"greedy",
"implementation",
"math",
"two pointers"
] | null | null | stdin_stdout | 1,900 | {
"solved_count": 4485
} | 2026-08-10T02:20:32.917453+00:00 |
codeforces:1659-C | codeforces | 1659-C | Line Empire | https://codeforces.com/problemset/problem/1659/C | [
"binary search",
"brute force",
"dp",
"greedy",
"implementation",
"math"
] | null | null | stdin_stdout | 1,500 | {
"solved_count": 15952
} | 2026-08-10T02:20:32.917453+00:00 |
codeforces:1659-B | codeforces | 1659-B | Bit Flipping | https://codeforces.com/problemset/problem/1659/B | [
"bitmasks",
"constructive algorithms",
"greedy",
"strings"
] | null | null | stdin_stdout | 1,300 | {
"solved_count": 12107
} | 2026-08-10T02:20:32.917453+00:00 |
codeforces:1659-A | codeforces | 1659-A | Red Versus Blue | https://codeforces.com/problemset/problem/1659/A | [
"constructive algorithms",
"greedy",
"implementation",
"math"
] | null | null | stdin_stdout | 1,000 | {
"solved_count": 33472
} | 2026-08-10T02:20:32.917453+00:00 |
codeforces:1658-F | codeforces | 1658-F | Juju and Binary String | https://codeforces.com/problemset/problem/1658/F | [
"brute force",
"constructive algorithms",
"greedy",
"math"
] | null | null | stdin_stdout | 2,700 | {
"solved_count": 1004
} | 2026-08-10T02:20:32.917453+00:00 |
codeforces:1658-E | codeforces | 1658-E | Gojou and Matrix Game | https://codeforces.com/problemset/problem/1658/E | [
"data structures",
"dp",
"games",
"hashing",
"implementation",
"math",
"number theory",
"sortings"
] | null | null | stdin_stdout | 2,500 | {
"solved_count": 1256
} | 2026-08-10T02:20:32.917453+00:00 |
codeforces:1658-D2 | codeforces | 1658-D2 | 388535 (Hard Version) | https://codeforces.com/problemset/problem/1658/D2 | [
"bitmasks",
"brute force",
"data structures",
"math"
] | null | null | stdin_stdout | 2,300 | {
"solved_count": 3220
} | 2026-08-10T02:20:32.917453+00:00 |
codeforces:1658-D1 | codeforces | 1658-D1 | 388535 (Easy Version) | https://codeforces.com/problemset/problem/1658/D1 | [
"bitmasks",
"math"
] | null | null | stdin_stdout | 1,600 | {
"solved_count": 10087
} | 2026-08-10T02:20:32.917453+00:00 |
codeforces:1658-C | codeforces | 1658-C | Shinju and the Lost Permutation | https://codeforces.com/problemset/problem/1658/C | [
"constructive algorithms",
"math"
] | null | null | stdin_stdout | 1,700 | {
"solved_count": 10006
} | 2026-08-10T02:20:32.917453+00:00 |
codeforces:1658-B | codeforces | 1658-B | Marin and Anti-coprime Permutation | https://codeforces.com/problemset/problem/1658/B | [
"combinatorics",
"math",
"number theory"
] | null | null | stdin_stdout | 800 | {
"solved_count": 19699
} | 2026-08-10T02:20:32.917453+00:00 |
codeforces:1658-A | codeforces | 1658-A | Marin and Photoshoot | https://codeforces.com/problemset/problem/1658/A | [
"constructive algorithms",
"implementation",
"math"
] | null | null | stdin_stdout | 800 | {
"solved_count": 20957
} | 2026-08-10T02:20:32.917453+00:00 |
codeforces:1657-F | codeforces | 1657-F | Words on Tree | https://codeforces.com/problemset/problem/1657/F | [
"2-sat",
"dfs and similar",
"dsu",
"graphs",
"trees"
] | null | null | stdin_stdout | 2,600 | {
"solved_count": 857
} | 2026-08-10T02:20:32.917453+00:00 |
codeforces:1657-E | codeforces | 1657-E | Star MST | https://codeforces.com/problemset/problem/1657/E | [
"combinatorics",
"dp",
"graph matchings",
"math"
] | null | null | stdin_stdout | 2,200 | {
"solved_count": 2556
} | 2026-08-10T02:20:32.917453+00:00 |
codeforces:1657-D | codeforces | 1657-D | For Gamers. By Gamers. | https://codeforces.com/problemset/problem/1657/D | [
"binary search",
"brute force",
"greedy",
"math",
"sortings"
] | null | null | stdin_stdout | 2,000 | {
"solved_count": 5367
} | 2026-08-10T02:20:32.917453+00:00 |
codeforces:1657-C | codeforces | 1657-C | Bracket Sequence Deletion | https://codeforces.com/problemset/problem/1657/C | [
"greedy",
"implementation"
] | null | null | stdin_stdout | 1,200 | {
"solved_count": 17788
} | 2026-08-10T02:20:32.917453+00:00 |
codeforces:1657-B | codeforces | 1657-B | XY Sequence | https://codeforces.com/problemset/problem/1657/B | [
"greedy"
] | null | null | stdin_stdout | 800 | {
"solved_count": 23695
} | 2026-08-10T02:20:32.917453+00:00 |
codeforces:1657-A | codeforces | 1657-A | Integer Moves | https://codeforces.com/problemset/problem/1657/A | [
"brute force",
"math"
] | null | null | stdin_stdout | 800 | {
"solved_count": 25013
} | 2026-08-10T02:20:32.917453+00:00 |
codeforces:1656-I | codeforces | 1656-I | Neighbour Ordering | https://codeforces.com/problemset/problem/1656/I | [
"constructive algorithms",
"graphs"
] | null | null | stdin_stdout | 3,500 | {
"solved_count": 170
} | 2026-08-10T02:20:32.917453+00:00 |
codeforces:1656-H | codeforces | 1656-H | Equal LCM Subsets | https://codeforces.com/problemset/problem/1656/H | [
"data structures",
"math",
"number theory"
] | null | null | stdin_stdout | 3,200 | {
"solved_count": 837
} | 2026-08-10T02:20:32.917453+00:00 |
codeforces:1656-G | codeforces | 1656-G | Cycle Palindrome | https://codeforces.com/problemset/problem/1656/G | [
"constructive algorithms",
"graphs",
"math"
] | null | null | stdin_stdout | 3,200 | {
"solved_count": 518
} | 2026-08-10T02:20:32.917453+00:00 |
codeforces:1656-F | codeforces | 1656-F | Parametric MST | https://codeforces.com/problemset/problem/1656/F | [
"binary search",
"constructive algorithms",
"graphs",
"greedy",
"math",
"sortings"
] | null | null | stdin_stdout | 2,600 | {
"solved_count": 1284
} | 2026-08-10T02:20:32.917453+00:00 |
codeforces:1656-E | codeforces | 1656-E | Equal Tree Sums | https://codeforces.com/problemset/problem/1656/E | [
"constructive algorithms",
"dfs and similar",
"math",
"trees"
] | null | null | stdin_stdout | 2,200 | {
"solved_count": 4005
} | 2026-08-10T02:20:32.917453+00:00 |
codeforces:1656-D | codeforces | 1656-D | K-good | https://codeforces.com/problemset/problem/1656/D | [
"constructive algorithms",
"math",
"number theory"
] | null | null | stdin_stdout | 1,900 | {
"solved_count": 7644
} | 2026-08-10T02:20:32.917453+00:00 |
codeforces:1656-C | codeforces | 1656-C | Make Equal With Mod | https://codeforces.com/problemset/problem/1656/C | [
"constructive algorithms",
"math",
"number theory",
"sortings"
] | null | null | stdin_stdout | 1,200 | {
"solved_count": 21221
} | 2026-08-10T02:20:32.917453+00:00 |
codeforces:1656-B | codeforces | 1656-B | Subtract Operation | https://codeforces.com/problemset/problem/1656/B | [
"data structures",
"greedy",
"math",
"two pointers"
] | null | null | stdin_stdout | 1,100 | {
"solved_count": 28540
} | 2026-08-10T02:20:32.917453+00:00 |
codeforces:1656-A | codeforces | 1656-A | Good Pairs | https://codeforces.com/problemset/problem/1656/A | [
"math",
"sortings"
] | null | null | stdin_stdout | 800 | {
"solved_count": 20525
} | 2026-08-10T02:20:32.917453+00:00 |
codeforces:1654-H | codeforces | 1654-H | Three Minimums | https://codeforces.com/problemset/problem/1654/H | [
"combinatorics",
"constructive algorithms",
"divide and conquer",
"dp",
"fft",
"math"
] | null | null | stdin_stdout | 3,500 | {
"solved_count": 111
} | 2026-08-10T02:20:32.917453+00:00 |
codeforces:1654-G | codeforces | 1654-G | Snowy Mountain | https://codeforces.com/problemset/problem/1654/G | [
"data structures",
"dfs and similar",
"graphs",
"greedy",
"shortest paths",
"trees"
] | null | null | stdin_stdout | 2,900 | {
"solved_count": 474
} | 2026-08-10T02:20:32.917453+00:00 |
codeforces:1654-F | codeforces | 1654-F | Minimal String Xoration | https://codeforces.com/problemset/problem/1654/F | [
"bitmasks",
"data structures",
"divide and conquer",
"greedy",
"hashing",
"sortings",
"strings"
] | null | null | stdin_stdout | 2,800 | {
"solved_count": 1529
} | 2026-08-10T02:20:32.917453+00:00 |
codeforces:1654-E | codeforces | 1654-E | Arithmetic Operations | https://codeforces.com/problemset/problem/1654/E | [
"brute force",
"data structures",
"graphs",
"math"
] | null | null | stdin_stdout | 2,300 | {
"solved_count": 2385
} | 2026-08-10T02:20:32.917453+00:00 |
codeforces:1654-D | codeforces | 1654-D | Potion Brewing Class | https://codeforces.com/problemset/problem/1654/D | [
"dfs and similar",
"math",
"number theory",
"trees"
] | null | null | stdin_stdout | 2,100 | {
"solved_count": 3097
} | 2026-08-10T02:20:32.917453+00:00 |
codeforces:1654-C | codeforces | 1654-C | Alice and the Cake | https://codeforces.com/problemset/problem/1654/C | [
"data structures",
"greedy",
"implementation",
"sortings"
] | null | null | stdin_stdout | 1,400 | {
"solved_count": 14642
} | 2026-08-10T02:20:32.917453+00:00 |
codeforces:1654-B | codeforces | 1654-B | Prefix Removals | https://codeforces.com/problemset/problem/1654/B | [
"strings"
] | null | null | stdin_stdout | 800 | {
"solved_count": 16936
} | 2026-08-10T02:20:32.917453+00:00 |
codeforces:1654-A | codeforces | 1654-A | Maximum Cake Tastiness | https://codeforces.com/problemset/problem/1654/A | [
"brute force",
"greedy",
"implementation",
"sortings"
] | null | null | stdin_stdout | 800 | {
"solved_count": 19453
} | 2026-08-10T02:20:32.917453+00:00 |
codeforces:1651-F | codeforces | 1651-F | Tower Defense | https://codeforces.com/problemset/problem/1651/F | [
"binary search",
"brute force",
"data structures"
] | null | null | stdin_stdout | 3,000 | {
"solved_count": 531
} | 2026-08-10T02:20:32.917453+00:00 |
codeforces:1651-E | codeforces | 1651-E | Sum of Matchings | https://codeforces.com/problemset/problem/1651/E | [
"brute force",
"combinatorics",
"constructive algorithms",
"dfs and similar",
"graph matchings",
"greedy",
"math"
] | null | null | stdin_stdout | 2,600 | {
"solved_count": 670
} | 2026-08-10T02:20:32.917453+00:00 |
codeforces:1651-D | codeforces | 1651-D | Nearest Excluded Points | https://codeforces.com/problemset/problem/1651/D | [
"binary search",
"data structures",
"dfs and similar",
"graphs",
"shortest paths"
] | null | null | stdin_stdout | 1,900 | {
"solved_count": 6771
} | 2026-08-10T02:20:32.917453+00:00 |
codeforces:1651-C | codeforces | 1651-C | Fault-tolerant Network | https://codeforces.com/problemset/problem/1651/C | [
"brute force",
"data structures",
"implementation"
] | null | null | stdin_stdout | 1,500 | {
"solved_count": 11660
} | 2026-08-10T02:20:32.917453+00:00 |
codeforces:1651-B | codeforces | 1651-B | Prove Him Wrong | https://codeforces.com/problemset/problem/1651/B | [
"constructive algorithms",
"greedy"
] | null | null | stdin_stdout | 800 | {
"solved_count": 20525
} | 2026-08-10T02:20:32.917453+00:00 |
codeforces:1651-A | codeforces | 1651-A | Playoff | https://codeforces.com/problemset/problem/1651/A | [
"implementation"
] | null | null | stdin_stdout | 800 | {
"solved_count": 26761
} | 2026-08-10T02:20:32.917453+00:00 |
codeforces:1650-G | codeforces | 1650-G | Counting Shortcuts | https://codeforces.com/problemset/problem/1650/G | [
"data structures",
"dfs and similar",
"dp",
"graphs",
"shortest paths"
] | null | null | stdin_stdout | 2,100 | {
"solved_count": 3093
} | 2026-08-10T02:20:32.917453+00:00 |
codeforces:1650-F | codeforces | 1650-F | Vitaly and Advanced Useless Algorithms | https://codeforces.com/problemset/problem/1650/F | [
"dp",
"greedy",
"implementation"
] | null | null | stdin_stdout | 2,200 | {
"solved_count": 1720
} | 2026-08-10T02:20:32.917453+00:00 |
codeforces:1650-E | codeforces | 1650-E | Rescheduling the Exam | https://codeforces.com/problemset/problem/1650/E | [
"binary search",
"data structures",
"greedy",
"implementation",
"math",
"sortings"
] | null | null | stdin_stdout | 1,900 | {
"solved_count": 4498
} | 2026-08-10T02:20:32.917453+00:00 |
codeforces:1650-D | codeforces | 1650-D | Twist the Permutation | https://codeforces.com/problemset/problem/1650/D | [
"brute force",
"constructive algorithms",
"implementation",
"math"
] | null | null | stdin_stdout | 1,300 | {
"solved_count": 15343
} | 2026-08-10T02:20:32.917453+00:00 |
codeforces:1650-C | codeforces | 1650-C | Weight of the System of Nested Segments | https://codeforces.com/problemset/problem/1650/C | [
"greedy",
"hashing",
"implementation",
"sortings"
] | null | null | stdin_stdout | 1,200 | {
"solved_count": 18757
} | 2026-08-10T02:20:32.917453+00:00 |
codeforces:1650-B | codeforces | 1650-B | DIV + MOD | https://codeforces.com/problemset/problem/1650/B | [
"math"
] | null | null | stdin_stdout | 900 | {
"solved_count": 30257
} | 2026-08-10T02:20:32.917453+00:00 |
codeforces:1650-A | codeforces | 1650-A | Deletions of Two Adjacent Letters | https://codeforces.com/problemset/problem/1650/A | [
"implementation",
"strings"
] | null | null | stdin_stdout | 800 | {
"solved_count": 37552
} | 2026-08-10T02:20:32.917453+00:00 |
codeforces:1649-B | codeforces | 1649-B | Game of Ball Passing | https://codeforces.com/problemset/problem/1649/B | [
"greedy",
"implementation"
] | null | null | stdin_stdout | 1,300 | {
"solved_count": 14028
} | 2026-08-10T02:20:32.917453+00:00 |
codeforces:1649-A | codeforces | 1649-A | Game | https://codeforces.com/problemset/problem/1649/A | [
"implementation"
] | null | null | stdin_stdout | 800 | {
"solved_count": 16094
} | 2026-08-10T02:20:32.917453+00:00 |
codeforces:1648-F | codeforces | 1648-F | Two Avenues | https://codeforces.com/problemset/problem/1648/F | [
"data structures",
"dfs and similar",
"graphs"
] | null | null | stdin_stdout | 3,500 | {
"solved_count": 190
} | 2026-08-10T02:20:32.917453+00:00 |
codeforces:1648-E | codeforces | 1648-E | Air Reform | https://codeforces.com/problemset/problem/1648/E | [
"data structures",
"dfs and similar",
"divide and conquer",
"dsu",
"graphs",
"implementation",
"trees"
] | null | null | stdin_stdout | 3,200 | {
"solved_count": 618
} | 2026-08-10T02:20:32.917453+00:00 |
codeforces:1648-D | codeforces | 1648-D | Serious Business | https://codeforces.com/problemset/problem/1648/D | [
"data structures",
"divide and conquer",
"dp",
"implementation",
"shortest paths"
] | null | null | stdin_stdout | 2,800 | {
"solved_count": 1079
} | 2026-08-10T02:20:32.917453+00:00 |
codeforces:1648-C | codeforces | 1648-C | Tyler and Strings | https://codeforces.com/problemset/problem/1648/C | [
"combinatorics",
"data structures",
"implementation"
] | null | null | stdin_stdout | 1,900 | {
"solved_count": 3367
} | 2026-08-10T02:20:32.917453+00:00 |
codeforces:1648-B | codeforces | 1648-B | Integral Array | https://codeforces.com/problemset/problem/1648/B | [
"brute force",
"constructive algorithms",
"data structures",
"math"
] | null | null | stdin_stdout | 1,800 | {
"solved_count": 7392
} | 2026-08-10T02:20:32.917453+00:00 |
codeforces:1648-A | codeforces | 1648-A | Weird Sum | https://codeforces.com/problemset/problem/1648/A | [
"combinatorics",
"data structures",
"geometry",
"math",
"matrices",
"sortings"
] | null | null | stdin_stdout | 1,400 | {
"solved_count": 19896
} | 2026-08-10T02:20:32.917453+00:00 |
codeforces:1647-F | codeforces | 1647-F | Madoka and Laziness | https://codeforces.com/problemset/problem/1647/F | [
"dp",
"greedy"
] | null | null | stdin_stdout | 3,100 | {
"solved_count": 554
} | 2026-08-10T02:20:32.917453+00:00 |
codeforces:1647-E | codeforces | 1647-E | Madoka and the Sixth-graders | https://codeforces.com/problemset/problem/1647/E | [
"data structures",
"dfs and similar",
"greedy"
] | null | null | stdin_stdout | 2,500 | {
"solved_count": 1146
} | 2026-08-10T02:20:32.917453+00:00 |
codeforces:1647-D | codeforces | 1647-D | Madoka and the Best School in Russia | https://codeforces.com/problemset/problem/1647/D | [
"constructive algorithms",
"dp",
"math",
"number theory"
] | null | null | stdin_stdout | 1,900 | {
"solved_count": 5731
} | 2026-08-10T02:20:32.917453+00:00 |
codeforces:1647-C | codeforces | 1647-C | Madoka and Childish Pranks | https://codeforces.com/problemset/problem/1647/C | [
"constructive algorithms",
"greedy"
] | null | null | stdin_stdout | 1,300 | {
"solved_count": 13409
} | 2026-08-10T02:20:32.917453+00:00 |
codeforces:1647-B | codeforces | 1647-B | Madoka and the Elegant Gift | https://codeforces.com/problemset/problem/1647/B | [
"brute force",
"constructive algorithms",
"graphs",
"implementation"
] | null | null | stdin_stdout | 1,200 | {
"solved_count": 17211
} | 2026-08-10T02:20:32.917453+00:00 |
codeforces:1647-A | codeforces | 1647-A | Madoka and Math Dad | https://codeforces.com/problemset/problem/1647/A | [
"implementation",
"math"
] | null | null | stdin_stdout | 800 | {
"solved_count": 23549
} | 2026-08-10T02:20:32.917453+00:00 |
codeforces:1646-F | codeforces | 1646-F | Playing Around the Table | https://codeforces.com/problemset/problem/1646/F | [
"constructive algorithms",
"greedy",
"implementation"
] | null | null | stdin_stdout | 2,900 | {
"solved_count": 708
} | 2026-08-10T02:20:32.917453+00:00 |
codeforces:1646-E | codeforces | 1646-E | Power Board | https://codeforces.com/problemset/problem/1646/E | [
"brute force",
"dp",
"math",
"number theory"
] | null | null | stdin_stdout | 2,200 | {
"solved_count": 2822
} | 2026-08-10T02:20:32.917453+00:00 |
codeforces:1646-D | codeforces | 1646-D | Weight the Tree | https://codeforces.com/problemset/problem/1646/D | [
"constructive algorithms",
"dfs and similar",
"dp",
"implementation",
"trees"
] | null | null | stdin_stdout | 2,000 | {
"solved_count": 4505
} | 2026-08-10T02:20:32.917453+00:00 |
codeforces:1646-C | codeforces | 1646-C | Factorials and Powers of Two | https://codeforces.com/problemset/problem/1646/C | [
"bitmasks",
"brute force",
"constructive algorithms",
"dp",
"math"
] | null | null | stdin_stdout | 1,500 | {
"solved_count": 20625
} | 2026-08-10T02:20:32.917453+00:00 |
codeforces:1646-B | codeforces | 1646-B | Quality vs Quantity | https://codeforces.com/problemset/problem/1646/B | [
"brute force",
"constructive algorithms",
"greedy",
"sortings",
"two pointers"
] | null | null | stdin_stdout | 800 | {
"solved_count": 22889
} | 2026-08-10T02:20:32.917453+00:00 |
codeforces:1646-A | codeforces | 1646-A | Square Counting | https://codeforces.com/problemset/problem/1646/A | [
"math"
] | null | null | stdin_stdout | 800 | {
"solved_count": 25491
} | 2026-08-10T02:20:32.917453+00:00 |
codeforces:1644-F | codeforces | 1644-F | Basis | https://codeforces.com/problemset/problem/1644/F | [
"combinatorics",
"fft",
"math",
"number theory"
] | null | null | stdin_stdout | 2,900 | {
"solved_count": 526
} | 2026-08-10T02:20:32.917453+00:00 |
codeforces:1644-E | codeforces | 1644-E | Expand the Path | https://codeforces.com/problemset/problem/1644/E | [
"brute force",
"combinatorics",
"data structures",
"implementation",
"math"
] | null | null | stdin_stdout | 1,900 | {
"solved_count": 3508
} | 2026-08-10T02:20:32.917453+00:00 |
codeforces:1644-D | codeforces | 1644-D | Cross Coloring | https://codeforces.com/problemset/problem/1644/D | [
"data structures",
"implementation",
"math"
] | null | null | stdin_stdout | 1,700 | {
"solved_count": 7940
} | 2026-08-10T02:20:32.917453+00:00 |
codeforces:1644-C | codeforces | 1644-C | Increase Subarray Sums | https://codeforces.com/problemset/problem/1644/C | [
"brute force",
"dp",
"greedy",
"implementation"
] | null | null | stdin_stdout | 1,400 | {
"solved_count": 15143
} | 2026-08-10T02:20:32.917453+00:00 |
codeforces:1644-B | codeforces | 1644-B | Anti-Fibonacci Permutation | https://codeforces.com/problemset/problem/1644/B | [
"brute force",
"constructive algorithms",
"implementation"
] | null | null | stdin_stdout | 800 | {
"solved_count": 21365
} | 2026-08-10T02:20:32.917453+00:00 |
codeforces:1644-A | codeforces | 1644-A | Doors and Keys | https://codeforces.com/problemset/problem/1644/A | [
"implementation"
] | null | null | stdin_stdout | 800 | {
"solved_count": 28756
} | 2026-08-10T02:20:32.917453+00:00 |
codeforces:1642-B | codeforces | 1642-B | Power Walking | https://codeforces.com/problemset/problem/1642/B | [
"greedy"
] | null | null | stdin_stdout | 900 | {
"solved_count": 18387
} | 2026-08-10T02:20:32.917453+00:00 |
codeforces:1642-A | codeforces | 1642-A | Hard Way | https://codeforces.com/problemset/problem/1642/A | [
"geometry"
] | null | null | stdin_stdout | 800 | {
"solved_count": 16796
} | 2026-08-10T02:20:32.917453+00:00 |
codeforces:1641-F | codeforces | 1641-F | Covering Circle | https://codeforces.com/problemset/problem/1641/F | [
"geometry"
] | null | null | stdin_stdout | 3,500 | {
"solved_count": 123
} | 2026-08-10T02:20:32.917453+00:00 |
codeforces:1641-E | codeforces | 1641-E | Special Positions | https://codeforces.com/problemset/problem/1641/E | [
"combinatorics",
"divide and conquer",
"fft",
"math"
] | null | null | stdin_stdout | 3,300 | {
"solved_count": 411
} | 2026-08-10T02:20:32.917453+00:00 |
codeforces:1641-D | codeforces | 1641-D | Two Arrays | https://codeforces.com/problemset/problem/1641/D | [
"bitmasks",
"brute force",
"combinatorics",
"greedy",
"hashing",
"math",
"two pointers"
] | null | null | stdin_stdout | 2,700 | {
"solved_count": 1555
} | 2026-08-10T02:20:32.917453+00:00 |
codeforces:1641-C | codeforces | 1641-C | Anonymity Is Important | https://codeforces.com/problemset/problem/1641/C | [
"binary search",
"brute force",
"data structures",
"dsu",
"greedy",
"sortings"
] | null | null | stdin_stdout | 2,200 | {
"solved_count": 2895
} | 2026-08-10T02:20:32.917453+00:00 |
codeforces:1641-B | codeforces | 1641-B | Repetitions Decoding | https://codeforces.com/problemset/problem/1641/B | [
"constructive algorithms",
"implementation",
"sortings"
] | null | null | stdin_stdout | 2,000 | {
"solved_count": 4112
} | 2026-08-10T02:20:32.917453+00:00 |
codeforces:1641-A | codeforces | 1641-A | Great Sequence | https://codeforces.com/problemset/problem/1641/A | [
"brute force",
"greedy",
"sortings"
] | null | null | stdin_stdout | 1,200 | {
"solved_count": 19067
} | 2026-08-10T02:20:32.917453+00:00 |
codeforces:1639-K | codeforces | 1639-K | Treasure Hunt | https://codeforces.com/problemset/problem/1639/K | [
"graphs",
"interactive"
] | null | null | stdin_stdout | null | {
"solved_count": 0
} | 2026-08-10T02:20:32.917453+00:00 |
codeforces:1639-J | codeforces | 1639-J | Treasure Hunt | https://codeforces.com/problemset/problem/1639/J | [
"graphs",
"interactive"
] | null | null | stdin_stdout | null | {
"solved_count": 0
} | 2026-08-10T02:20:32.917453+00:00 |
codeforces:1639-I | codeforces | 1639-I | Treasure Hunt | https://codeforces.com/problemset/problem/1639/I | [
"graphs",
"interactive"
] | null | null | stdin_stdout | null | {
"solved_count": 0
} | 2026-08-10T02:20:32.917453+00:00 |
codeforces:1639-H | codeforces | 1639-H | Treasure Hunt | https://codeforces.com/problemset/problem/1639/H | [
"graphs",
"interactive"
] | null | null | stdin_stdout | null | {
"solved_count": 0
} | 2026-08-10T02:20:32.917453+00:00 |
codeforces:1639-G | codeforces | 1639-G | Treasure Hunt | https://codeforces.com/problemset/problem/1639/G | [
"graphs",
"interactive"
] | null | null | stdin_stdout | null | {
"solved_count": 0
} | 2026-08-10T02:20:32.917453+00:00 |
codeforces:1639-F | codeforces | 1639-F | Treasure Hunt | https://codeforces.com/problemset/problem/1639/F | [
"graphs",
"interactive"
] | null | null | stdin_stdout | null | {
"solved_count": 0
} | 2026-08-10T02:20:32.917453+00:00 |
codeforces:1639-E | codeforces | 1639-E | Treasure Hunt | https://codeforces.com/problemset/problem/1639/E | [
"graphs",
"interactive"
] | null | null | stdin_stdout | null | {
"solved_count": 0
} | 2026-08-10T02:20:32.917453+00:00 |
codeforces:1639-D | codeforces | 1639-D | Treasure Hunt | https://codeforces.com/problemset/problem/1639/D | [
"graphs",
"interactive"
] | null | null | stdin_stdout | null | {
"solved_count": 0
} | 2026-08-10T02:20:32.917453+00:00 |
codeforces:1639-C | codeforces | 1639-C | Treasure Hunt | https://codeforces.com/problemset/problem/1639/C | [
"graphs",
"interactive"
] | null | null | stdin_stdout | null | {
"solved_count": 0
} | 2026-08-10T02:20:32.917453+00:00 |
codeforces:1639-B | codeforces | 1639-B | Treasure Hunt | https://codeforces.com/problemset/problem/1639/B | [
"graphs",
"interactive"
] | null | null | stdin_stdout | null | {
"solved_count": 0
} | 2026-08-10T02:20:32.917453+00:00 |
codeforces:1639-A | codeforces | 1639-A | Treasure Hunt | https://codeforces.com/problemset/problem/1639/A | [
"graphs",
"interactive"
] | null | null | stdin_stdout | null | {
"solved_count": 0
} | 2026-08-10T02:20:32.917453+00:00 |
codeforces:1638-F | codeforces | 1638-F | Two Posters | https://codeforces.com/problemset/problem/1638/F | [
"brute force",
"data structures",
"greedy",
"two pointers"
] | null | null | stdin_stdout | 3,200 | {
"solved_count": 278
} | 2026-08-10T02:20:32.917453+00:00 |
codeforces:1638-E | codeforces | 1638-E | Colorful Operations | https://codeforces.com/problemset/problem/1638/E | [
"brute force",
"data structures",
"implementation"
] | null | null | stdin_stdout | 2,400 | {
"solved_count": 2470
} | 2026-08-10T02:20:32.917453+00:00 |
codeforces:1638-D | codeforces | 1638-D | Big Brush | https://codeforces.com/problemset/problem/1638/D | [
"constructive algorithms",
"data structures",
"greedy",
"implementation"
] | null | null | stdin_stdout | 2,000 | {
"solved_count": 4821
} | 2026-08-10T02:20:32.917453+00:00 |
codeforces:1638-C | codeforces | 1638-C | Inversion Graph | https://codeforces.com/problemset/problem/1638/C | [
"data structures",
"dsu",
"graphs",
"math"
] | null | null | stdin_stdout | 1,300 | {
"solved_count": 16098
} | 2026-08-10T02:20:32.917453+00:00 |
codeforces:1638-B | codeforces | 1638-B | Odd Swap Sort | https://codeforces.com/problemset/problem/1638/B | [
"data structures",
"math",
"sortings"
] | null | null | stdin_stdout | 1,100 | {
"solved_count": 22754
} | 2026-08-10T02:20:32.917453+00:00 |
codeforces:1638-A | codeforces | 1638-A | Reverse | https://codeforces.com/problemset/problem/1638/A | [
"constructive algorithms",
"greedy",
"math"
] | null | null | stdin_stdout | 800 | {
"solved_count": 22217
} | 2026-08-10T02:20:32.917453+00:00 |
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