AD100-ALG-02
Dijkstra shortest paths
2/2 drivers
100.0%
100.0%
3
3.00
6814
23.0s
Challenge
Tests
C++ test drivers (one per hidden .cpp file).
AD100-ALG-03
JSON parser from scratch
43/43
100.0%
100.0%
3
3.00
52.1k
189.5s
AD100-ALG-16
RFC-4180 CSV parser from scratch
5/6
83.3%
70.0%
3.5
2.45
8233
37.0s
Challenge
Failed tests
- test_edge_quoting_and_separators
AD100-ALG-19
S-expression reader/writer
4/4
100.0%
100.0%
3.5
3.50
0
53.1s
AD100-ALG-20
word ladder shortest chain
4/4
100.0%
100.0%
3
3.00
5091
19.0s
AD100-ALG-22
strongly connected components (Tarjan)
3/3 drivers
100.0%
100.0%
3
3.00
3762
12.9s
Challenge
Tests
C++ test drivers (one per hidden .cpp file).
AD100-ALG-23
segment tree: point update + range sum
3/3 drivers
100.0%
100.0%
3
3.00
5059
21.0s
Challenge
Tests
C++ test drivers (one per hidden .cpp file).
AD100-ALG-26
sparse table RMQ
4/4 drivers
100.0%
100.0%
3
3.00
4552
28.0s
Challenge
Tests
C++ test drivers (one per hidden .cpp file).
AD100-ALG-27
convex hull (monotone chain)
4/4 drivers
100.0%
100.0%
3
3.00
9720
41.1s
Challenge
Tests
C++ test drivers (one per hidden .cpp file).
AD100-ALG-28
min-cost max-flow
3/3 drivers
100.0%
100.0%
3
3.00
8037
33.1s
Challenge
Tests
C++ test drivers (one per hidden .cpp file).
AD100-ALG-29
glob matcher (*, ?, classes)
3/5
60.0%
50.0%
6
3.00
10.8k
37.0s
Challenge
Failed tests
- test_question_and_classes
- test_scale_many_stars_long_text
AD100-ALG-30
matrix-chain multiplication
0/5
0.0%
0.0%
3
0.00
2713
481.8s
Challenge
Failed tests
- test_basic_known
- test_edge_cases
- test_property_brute_random
- test_property_tiebreak_canonical
- test_scale_300_matrices
AD100-ALG-31
Huffman coding round-trip
6/6
100.0%
100.0%
3
3.00
10.3k
38.7s
AD100-ALG-33
big-decimal arithmetic (strings)
4/4 drivers
100.0%
100.0%
3.5
3.50
0
32.7s
Challenge
Tests
C++ test drivers (one per hidden .cpp file).
AD100-ALG-34
treap: k-th order statistics
4/4 drivers
100.0%
100.0%
4.5
4.50
23.0k
92.7s
Challenge
Tests
C++ test drivers (one per hidden .cpp file).
AD100-ALG-35
persistent segment tree (versions + k-th)
0/4 drivers
0.0%
0.0%
3
0.00
19.7k
52.6s
Challenge
Tests
C++ test drivers (one per hidden .cpp file).
Failed tests
- test_basic
- test_edge
- test_property
- test_scale
AD100-DBG-11
API contract: exception + aliasing
16/16
100.0%
100.0%
3
3.00
6404
31.7s
AD100-DBG-12
int overflow in size arithmetic
1/4 drivers
25.0%
0.0%
3.5
0.00
2213
481.2s
Challenge
Tests
C++ test drivers (one per hidden .cpp file).
Failed tests
- test_bugs
- test_bugs_public
- test_regression
AD100-DBG-13
size_t underflow on singleton/empty
1/4 drivers
25.0%
0.0%
7.5
0.00
2761
481.3s
Challenge
Tests
C++ test drivers (one per hidden .cpp file).
Failed tests
- test_bugs
- test_bugs_public
- test_regression
AD100-DBG-15
hash-order nondeterminism
12/12
100.0%
100.0%
3
3.00
2718
4.7s
AD100-DBG-17
wrong exception type on error path
2/4 drivers
50.0%
40.0%
4.5
1.80
3822
481.3s
Challenge
Tests
C++ test drivers (one per hidden .cpp file).
Failed tests
- test_bugs
- test_bugs_public
AD100-DBG-19
multiple interacting bug classes
19/19
100.0%
100.0%
3
3.00
11.0k
36.7s
AD100-DBG-20
path traversal + expression injection
50/50
100.0%
100.0%
3
3.00
7654
39.6s
AD100-DBG-21
unseeded RNG / wall-clock dependence
13/19
68.4%
0.0%
3
0.00
3305
8.6s
Challenge
Failed tests
- test_idgen_not_wall_clock_dependent
- test_idgen_sequences_match_formula_exactly
- test_idgen_matches_the_spec_formula
- test_idgen_instances_are_independent
- test_idgen_continues_sequentially
- test_defaults_are_accepted
AD100-DBG-23
erase-while-iterating + related bugs
1/4 drivers
25.0%
0.0%
3
0.00
2294
481.3s
Challenge
Tests
C++ test drivers (one per hidden .cpp file).
Failed tests
- test_bugs
- test_bugs_public
- test_regression
AD100-DBG-26
snapshot restore service
20/24
83.3%
35.0%
15.5
5.42
12.0k
47.6s
Challenge
Failed tests
- test_security_link_target_resolution[False]
- test_security_link_target_resolution[True]
- test_security_parent_after_symlink[bridge/../secret]
- test_security_parent_after_symlink[/r/bridge/../secret]
AD100-DBG-27
verified block ingestion
30/44
68.2%
0.0%
10
0.00
6730
29.7s
Challenge
Failed tests
- test_regression_cli_success
- test_regression_independent_empty_block
- test_regression_reader_stays_failed
- test_regression_sizes[1-0]
- test_regression_sizes[7-0]
- test_regression_sizes[4096-0]
- test_security_truncated_stream_never_commits[16]
- test_security_truncated_stream_never_commits[17]
- test_security_truncated_stream_never_commits[19]
- test_security_truncated_stream_never_commits[21]
- test_security_empty_authenticated[tag]
- test_security_empty_authenticated[missing]
- test_security_empty_authenticated[key]
- test_security_batch_rollback
AD100-DBG-28
indexed document reader
26/26
100.0%
100.0%
3
3.00
0
38.7s
AD100-DBG-31
stylesheet inspection pipeline
25/33
75.8%
0.0%
22.5
0.00
11.0k
43.6s
Challenge
Failed tests
- test_regression_quoted_url_token_sequence
- test_security_even_backslashes_terminate[2]
- test_security_even_backslashes_terminate[4]
- test_security_even_backslashes_terminate[6]
- test_security_even_backslashes_terminate[8]
- test_security_hidden_declaration_not_consumed[2]
- test_security_hidden_declaration_not_consumed[4]
- test_security_hidden_declaration_not_consumed[6]
AD100-DBG-33
multipart metadata processing
16/19
84.2%
0.0%
13
0.00
0
88.7s
Challenge
Failed tests
- test_regression_parameters[form-data; name=x; filename=old; filename*=UTF-8''new-want3]
- test_security_long_unassigned_parameter
- test_security_large_malformed_then_valid
AD100-DBG-34
URL text and form gateway
18/29
62.1%
0.0%
6
0.00
0
116.7s
Challenge
Failed tests
- test_regression_utf8[%C0%AF-%C0%AF]
- test_regression_utf8[%ED%A0%80-%ED%A0%80]
- test_regression_utf8[%F4%90%80%80-%F4%90%80%80]
- test_regression_utf8[%C2-%C2]
- test_regression_utf8[%zz%-%zz%]
- test_regression_random_independent_utf8_reference
- test_security_no_cascading[%2541x%41%zz-%41xA%zz]
- test_security_no_cascading[%252Bx%2B-%2Bx+]
- test_security_no_cascading[%25C3%25A9x%C3%A9-%C3%A9x\xe9]
- test_security_many_distinct_runs
- test_security_form_boundaries
AD100-DBG-35
schema identifier registry
18/24
75.0%
0.0%
10.5
0.00
0
106.7s
Challenge
Failed tests
- test_regression_random_reference
- test_security_invalid_arcs[3.2.840]
- test_security_first_subidentifier_multibyte[2.48-8100]
- test_security_first_subidentifier_multibyte[2.100-8134]
- test_security_first_subidentifier_multibyte[2.999.3-883703]
- test_security_first_subidentifier_multibyte[2.4294967215-8fffffff7f]
AD100-DBG-36
Walk or drive to the car wash
0/1
0.0%
0.0%
4
0.00
1819
2.6s
AD100-DBG-37
Which is larger, 9.11 or 9.9?
1/1
100.0%
100.0%
3
3.00
1919
2.6s
AD100-OPT-17
quicksort worst-case pivot
2/2 drivers
100.0%
100.0%
3
3.00
5488
16.6s
Challenge
Tests
C++ test drivers (executed stages only): correctness: passed; performance: passed.
AD100-PRJ-01
taskcli: TSV task manager
20/20
100.0%
100.0%
3.5
3.50
24.1k
66.7s
AD100-PRJ-02
INI config library
3/3 drivers
100.0%
100.0%
3
3.00
28.6k
130.8s
Challenge
Tests
C++ test drivers (one per hidden .cpp file).
AD100-PRJ-08
Markdown→HTML subset
—
—
0.0%
22
0.00
0
94.7s
AD100-PRJ-09
KV store: TTL + LRU + snapshot
21/23
91.3%
80.0%
4.5
3.60
0
42.7s
Challenge
Failed tests
- test_usage_errors
- test_corrupt_store
AD100-PRJ-10
cron next-fire calculator
21/21
100.0%
100.0%
3.5
3.50
27.3k
121.8s
AD100-PRJ-11
access-log analyzer (stats + filters)
16/16
100.0%
100.0%
3.5
3.50
20.5k
66.7s
AD100-PRJ-12
HTTP/1.1 message parser
—
—
0.0%
5
0.00
0
166.8s
Challenge
Tests
C++ test drivers: results unavailable or incomplete.
AD100-PRJ-13
mustache-lite template engine
0/3 drivers
0.0%
0.0%
6.5
0.00
0
64.7s
Challenge
Tests
C++ test drivers (one per hidden .cpp file).
Failed tests
- test_basic
- test_edge
- test_sections
AD100-PRJ-14
mini scripting language interpreter
8/21
38.1%
0.0%
10.5
0.00
0
172.9s
Challenge
Failed tests
- test_if_elif_else
- test_while_loops
- test_nested_while
- test_functions_and_recursion
- test_scoping
- test_list_mutation
- test_runtime_errors
- test_partial_output_kept
- test_arithmetic_precedence
- test_strings
- test_bools_nil_equality
- test_lists
- test_variables
AD100-PRJ-15
mini pytest (discovery, fixtures, report)
17/18
94.4%
60.0%
4.5
2.70
0
50.6s
Challenge
Failed tests
- test_fixture_assertion_is_error_not_fail
AD100-PRJ-16
Game of Life engine (seeded, census)
11/11
100.0%
100.0%
3.5
3.50
0
74.7s
AD100-PRJ-17
LZ77+RLE codec with checksum
4/4 drivers
100.0%
100.0%
4.5
4.50
0
56.6s
Challenge
Tests
C++ test drivers (one per hidden .cpp file).
AD100-PRJ-18
discrete-event simulator (deterministic)
4/4 drivers
100.0%
100.0%
3.5
3.50
0
76.7s
Challenge
Tests
C++ test drivers (one per hidden .cpp file).
AD100-PRJ-19
C++ mini test framework
4/4 drivers
100.0%
100.0%
3.5
3.50
25.8k
111.7s
Challenge
Tests
C++ test drivers (one per hidden .cpp file).
AD100-PRJ-20
SQL subset engine (DDL/DML/SELECT/JOIN)
0/4 drivers
0.0%
0.0%
15.5
0.00
3930
1202.2s
Challenge
Tests
C++ test drivers (one per hidden .cpp file).
Failed tests
- test_ddl_dml
- test_errors
- test_join
- test_select
AD100-PRJ-21
Indexed archive utility
0/8 drivers
0.0%
0.0%
30
0.00
97.0k
1200.1s
Challenge
Tests
C++ test drivers (one per hidden .cpp file).
Failed tests
- test_core
- test_core_metadata
- test_core_selection
- test_errors
- test_errors_integrity
- test_errors_structure
- test_resources
- test_resources_indexed
AD100-PRJ-22
Silence-aware MP3 splitter
15/18
83.3%
20.0%
11.5
2.30
20.5k
60.6s
Challenge
Failed tests
- test_core_crc_flag_only_changes_flag
- test_core_plan_min_track_merges_and_leading_trailing_silence
- test_errors_plan_argument_validation
AD100-PRJ-23
FAT32/VFAT filesystem recovery
2/24
8.3%
0.0%
30
0.00
0
124.7s
Challenge
Failed tests
- test_core_independent_trees[41]
- test_core_independent_trees[1337]
- test_core_independent_trees[2027]
- test_core_root_and_lfn_across_fragmented_clusters
- test_core_unicode_short_escape_and_full_lfn_parts
- test_core_deep_directory_tree
- test_core_reserved_high_bits_and_inactive_fat
- test_core_fsinfo_hints_and_primary_boot_authority
- test_core_deleted_entries_volume_label_and_empty_directory
- test_errors_geometry[boot]
- test_errors_geometry[fat16]
- test_errors_geometry[small]
- test_errors_geometry[fat-capacity]
- test_errors_geometry[active]
- test_errors_geometry[fsinfo]
- test_errors_geometry[truncated]
- test_errors_chain_markers_and_file_size
- test_errors_lfn_records
- test_errors_namespace_and_depth_limits
- test_errors_mirror_disagreement_and_invalid_alias
- test_resources_large_fragmented_file
- test_resources_many_files_standalone_and_memory
AD100-PRJ-24
Image similarity and grouping
16/17
94.1%
80.0%
5
4.00
27.3k
123.8s
Challenge
Failed tests
- test_errors_group_validation
AD100-PRJ-25
Binary delta generator and applier
2/3 drivers
66.7%
40.0%
6.5
2.60
32.4k
66.7s
Challenge
Tests
C++ test drivers (one per hidden .cpp file).
Failed tests
AD100-PRJ-26
Incremental build tool
36/40
90.0%
0.0%
10
0.00
25.4k
82.7s
Challenge
Failed tests
- test_core_deep_chain_plan
- test_errors_empty_spec
- test_errors_files_missing_path
- test_resources_deep_chain_plan_and_execute
AD100-PRJ-27
ELF executable inspector
48/79
60.8%
0.0%
21
0.00
35.2k
66.7s
Challenge
Failed tests
- test_core_reports[rel-relocations]
- test_core_absent_names[sections]
- test_errors_type_header_bounds[sections]
- test_errors_type_header_bounds[symbols]
- test_errors_type_header_bounds[relocations]
- test_errors_type_header_bounds[segments]
- test_errors_sections[payload]
- test_errors_sections[name-type]
- test_errors_sections[name-start]
- test_errors_symbols[link-type]
- test_errors_symbols[info]
- test_errors_symbols[name-range]
- test_errors_symbols[section-range]
- test_errors_symbols[string-start]
- test_errors_relocations[stride]
- test_errors_relocations[link-range]
- test_errors_relocations[link-type]
- test_errors_relocations[target]
- test_errors_relocations[symbol-range]
- test_errors_relocations[linked-stride]
- test_errors_relocations[linked-string]
- test_errors_segments
- test_errors_review_boundaries[null-as-load]
- test_errors_review_boundaries[null-as-note]
- test_errors_review_boundaries[empty-name-nonzero]
- test_errors_review_boundaries[empty-name-bad-type]
- test_errors_review_boundaries[empty-name-bounds]
- test_errors_review_boundaries[no-table-nonzero-symbol]
- test_errors_review_boundaries[no-table-bad-link]
- test_errors_review_boundaries[no-table-wrong-type]
- test_resources_untrusted_sizes
AD100-PRJ-28
Dependency-aware package resolver
26/29
89.7%
20.0%
9
1.80
21.7k
86.7s
Challenge
Failed tests
- test_core_empty_request
- test_errors_non_string_version
- test_errors_requests_structure
AD100-PRJ-29
RAW Bayer development pipeline
3/3 drivers
100.0%
100.0%
7
7.00
14.5k
40.7s
Challenge
Tests
C++ test drivers (one per hidden .cpp file).
AD100-PRJ-30
Image registration (translation)
3/3 drivers
100.0%
100.0%
3.5
3.50
13.2k
44.7s
Challenge
Tests
C++ test drivers (one per hidden .cpp file).
AD100-PRJ-31
Score language to WAV synthesizer
10/12
83.3%
20.0%
28
5.60
33.7k
112.7s
Challenge
Failed tests
- test_core_voice_continuation
- test_errors_input_type
AD100-PRJ-32
Fixed-timestep 2D physics sandbox
9/12
75.0%
0.0%
9.5
0.00
21.1k
74.7s
Challenge
Failed tests
- test_core_bounds_reflection
- test_errors_steps_and_bounds
- test_resources_many_bodies
AD100-PRJ-33
Columnar data compressor
1/3 drivers
33.3%
20.0%
30
6.00
0
150.9s
Challenge
Tests
C++ test drivers (one per hidden .cpp file).
Failed tests
AD100-PRJ-34
DTMF decoder
8/13
61.5%
20.0%
18.5
3.70
0
58.7s
Challenge
Failed tests
- test_core_timing_frames
- test_core_short_blip_rejected
- test_core_gap_bridging
- test_errors_bad_container
- test_errors_truncated_chunks
AD100-PRJ-35
Mobile-robot path planner
0/12
0.0%
0.0%
9.5
0.00
2874
1200.3s
Challenge
Failed tests
- test_core_start_equals_goal
- test_core_tie_break_deterministic
- test_core_radius_two_inflation
- test_core_radius_boundary_inclusive
- test_core_optimal_costs_against_dijkstra
- test_core_single_cell_map
- test_core_narrow_corridor
- test_errors_grid_types
- test_errors_start_goal
- test_errors_blocked_terminals
- test_resources_large_map
- test_resources_open_map_worst_case
AD100-PRJ-36
Two-link robot-arm controller
12/14
85.7%
80.0%
23
18.40
7775
24.6s
Challenge
Failed tests
- test_errors_configs
- test_errors_ik
AD100-PRJ-37
Fiducial-marker detector
0/3 drivers
0.0%
0.0%
12.5
0.00
26.2k
98.7s
Challenge
Tests
C++ test drivers (one per hidden .cpp file).
Failed tests
- test_core
- test_errors
- test_resources
AD100-PRJ-38
Multi-object tracker
9/11
81.8%
80.0%
15.5
12.40
17.6k
62.7s
Challenge
Failed tests
- test_errors_frames
- test_errors_params
AD100-PRJ-39
Parametric audio equalizer
0/3 drivers
0.0%
0.0%
28
0.00
22.1k
74.7s
Challenge
Tests
C++ test drivers (one per hidden .cpp file).
Failed tests
- test_core
- test_errors
- test_resources
AD100-PRJ-40
Barcode scanner (EAN-13)
—
—
0.0%
24
0.00
59.0k
202.8s
Challenge
Tests
C++ test drivers: unavailable because the build failed or timed out; tests did not run.
AD100-PRJ-41
JSONL chat-log to Markdown converter
0/3
0.0%
0.0%
30
0.00
0
124.8s
Challenge
Failed tests
- test_core
- test_errors
- test_resources
AD100-PRJ-42
RFC 3986 URL utility
0/129
0.0%
0.0%
30
0.00
0
6.6s
AD100-PRJ-43
Nonlinear least-squares solver
1/3 drivers
33.3%
20.0%
7.5
1.50
52.9k
208.8s
Challenge
Tests
C++ test drivers (one per hidden .cpp file).
Failed tests
AD100-PRJ-44
IBAN and credit-card validator
8/9
88.9%
40.0%
6
2.40
8355
30.7s
Challenge
Failed tests
- test_core_card_prefix_length_rules
AD100-PRJ-45
Arbitrary-precision integer arithmetic
—
—
0.0%
14.5
0.00
0
172.8s
Challenge
Tests
C++ test drivers: unavailable because the build failed or timed out; tests did not run.
AD100-PRJ-47
Recover a hidden phrase from an executable
0/6
0.0%
0.0%
5.5
0.00
33.6k
1201.9s
Challenge
Failed tests
- test_core_exact_phrase
- test_core_exact_length
- test_errors_regular_submission_not_symlink
- test_errors_no_prompt_or_trailing_newline
- test_resources_bounded_file
- test_resources_standalone_bytes
AD100-PRJ-48
Black-box image transformation utility clone
—
—
0.0%
30
0.00
31.8k
151.8s
Challenge
Tests
C++ test drivers: results unavailable or incomplete.
AD100-PRJ-49
Closed-loop differential-drive line follower
20/21
95.2%
80.0%
13.5
10.80
40.4k
66.7s
Challenge
Failed tests
- test_errors_api_and_state[5]