Places in code with 6 or more lines that are exactly the same.
Intro
- For duplication, we look at places in code where there are 6 or more lines of code that are exactly the same.
- Before duplication is calculated, the code is cleaned to remove empty lines, comments, and frequently duplicated constructs such as imports.
- You should aim at having as little as possible (<5%) of duplicated code as high-level of duplication can lead to maintenance difficulties, poor factoring, and logical contradictions.
- To learn more about duplications and techniques for eliminating duplication, Sokrates recommends the following resources:
- Avoid Repetition, MartinFlower.com (IEEE Software article)
- Refactoring duplicated code, sourcemaking.com
- Beck Design Rules, MartinFowler.com
- DRY (Don't Repeat Yourself) Principle, Wikipedia
- The Cut-and-Paste Programming Software Development Anti-Pattern, sourcemaking.com
- Code Smells / Duplicated Code, Jeff Atwood, codinghorror.com:
- "Duplicated code is the bane of software development. Stamp out duplication whenever possible. You should always be on the lookout for more subtle cases of near-duplication, too. Don't Repeat Yourself!"
- Reducing Coupling, MartinFlower.com (IEEE Software article):
- "There are several ways to describe coupling, but it boils down to this: If changing one module in a program requires changing another module, then coupling exists. ... Duplication always implies coupling, because changing one piece of duplicate code implies changing the other."
Duplication Overall
- 12% duplication:
- 65,079 cleaned lines of cleaned code (without empty lines, comments, and frequently duplicated constructs such as imports)
- 7,849 duplicated lines
- 177,934 duplicates
Duplication per Extension
Duplication per Component (primary)
Longest Duplicates
The list of 20 longest duplicates.
| Size | # | Folders | Files | Lines | Code |
|---|---|---|---|---|---|
| 84 | x 2 | data/evaluation/geeks_fo...ssful_test_scripts/javadata/evaluation/geeks_fo...ssful_test_scripts/java |  SORT_EVEN_PLACED_ELEMENTS_INCREASING_...SPLIT_ARRAY_ADD_FIRST_PART_END.java |
12:105 (100%)12:106 (100%) | view |
| 51 | x 2 | data/evaluation/geeks_fo...ssful_test_scripts/javadata/evaluation/geeks_fo...ssful_test_scripts/java | FIND_THE_MINIMUM_DISTANCE_BETWEEN_TWO...FIND_THE_MINIMUM_DISTANCE_BETWEEN_TWO... |
25:84 (82%)36:96 (72%) | view |
| 45 | x 2 | data/evaluation/geeks_fo...ssful_test_scripts/javadata/evaluation/geeks_fo...ssful_test_scripts/java | FIND_WHETHER_AN_ARRAY_IS_SUBSET_OF_AN...FIND_WHETHER_AN_ARRAY_IS_SUBSET_OF_AN... |
30:74 (72%)33:77 (70%) | view |
| 40 | x 2 | data/evaluation/geeks_fo...ssful_test_scripts/javadata/evaluation/geeks_fo...ssful_test_scripts/java | DISTRIBUTING_ITEMS_PERSON_CANNOT_TAKE...DISTRIBUTING_ITEMS_PERSON_CANNOT_TAKE... |
26:74 (76%)22:70 (81%) | view |
| 32 | x 2 | data/evaluation/geeks_fo...ful_test_scripts/pythondata/evaluation/geeks_fo...ful_test_scripts/python |  MOVE_VE_ELEMENTS_END_ORDER_EXTRA_SPAC...MOVE_ZEROES_END_ARRAY.py |
26:57 (68%)20:51 (78%) | view |
| 28 | x 2 | data/evaluation/geeks_fo...ful_test_scripts/pythondata/evaluation/geeks_fo...ful_test_scripts/python | FIND_WHETHER_AN_ARRAY_IS_SUBSET_OF_AN...FIND_WHETHER_AN_ARRAY_IS_SUBSET_OF_AN... |
21:48 (73%)27:54 (63%) | view |
| 28 | x 2 | data/evaluation/geeks_fo...ssful_test_scripts/javadata/evaluation/geeks_fo...ssful_test_scripts/java | PRODUCT_NODES_K_TH_LEVEL_TREE_REPRESE...SUM_NODES_K_TH_LEVEL_TREE_REPRESENTED... |
32:63 (68%)32:63 (68%) | view |
| 21 | x 2 | data/evaluation/geeks_fo...essful_test_scripts/cppdata/evaluation/geeks_fo...essful_test_scripts/cpp |  FIND_WHETHER_AN_ARRAY_IS_SUBSET_OF_AN...FIND_WHETHER_AN_ARRAY_IS_SUBSET_OF_AN... |
35:59 (63%)35:59 (63%) | view |
| 19 | x 2 | data/evaluation/geeks_fo...ful_test_scripts/pythondata/evaluation/geeks_fo...ful_test_scripts/python | MAXIMUM_CONSECUTIVE_REPEATING_CHARACT...MAXIMUM_CONSECUTIVE_REPEATING_CHARACT... |
20:42 (59%)20:42 (59%) | view |
| 19 | x 2 | data/evaluation/geeks_fo...essful_test_scripts/cppdata/evaluation/geeks_fo...essful_test_scripts/cpp | PRODUCT_NODES_K_TH_LEVEL_TREE_REPRESE...SUM_NODES_K_TH_LEVEL_TREE_REPRESENTED... |
35:57 (61%)35:57 (61%) | view |
| 19 | x 2 | data/evaluation/geeks_fo...ful_test_scripts/pythondata/evaluation/geeks_fo...ful_test_scripts/python | FIND_THE_MINIMUM_DISTANCE_BETWEEN_TWO...FIND_THE_MINIMUM_DISTANCE_BETWEEN_TWO... |
13:35 (76%)23:45 (57%) | view |
| 18 | x 2 | data/evaluation/geeks_fo...ssful_test_scripts/javadata/evaluation/geeks_fo...ssful_test_scripts/java | DYNAMIC_PROGRAMMING_SET_3_LONGEST_INC...LONGEST_INCREASING_SUBSEQUENCE_1.java |
13:35 (40%)13:35 (40%) | view |
| 18 | x 2 | data/evaluation/geeks_fo...ssful_test_scripts/javadata/evaluation/geeks_fo...ssful_test_scripts/java | MAXIMUM_CONSECUTIVE_REPEATING_CHARACT...MAXIMUM_CONSECUTIVE_REPEATING_CHARACT... |
32:58 (51%)30:56 (54%) | view |
| 18 | x 2 | data/evaluation/geeks_fo...ssful_test_scripts/javadata/evaluation/geeks_fo...ssful_test_scripts/java | CHECK_IF_A_NUMBER_IS_POWER_OF_ANOTHER...CHECK_IF_A_NUMBER_IS_POWER_OF_ANOTHER... |
33:54 (52%)32:53 (54%) | view |
| 18 | x 2 | data/evaluation/geeks_fo...ful_test_scripts/pythondata/evaluation/geeks_fo...ful_test_scripts/python | PRODUCT_NODES_K_TH_LEVEL_TREE_REPRESE...SUM_NODES_K_TH_LEVEL_TREE_REPRESENTED... |
24:41 (58%)24:41 (58%) | view |
| 18 | x 2 | data/evaluation/geeks_fo...ful_test_scripts/pythondata/evaluation/geeks_fo...ful_test_scripts/python | WRITE_ONE_LINE_C_FUNCTION_TO_FIND_WHE...WRITE_ONE_LINE_C_FUNCTION_TO_FIND_WHE... |
19:36 (69%)13:30 (90%) | view |
| 17 | x 2 | data/evaluation/geeks_fo...ssful_test_scripts/javadata/evaluation/geeks_fo...ssful_test_scripts/java | CHANGE_BITS_CAN_MADE_ONE_FLIP.javaCHANGE_BITS_CAN_MADE_ONE_FLIP_1.java |
28:48 (62%)25:45 (68%) | view |
| 17 | x 2 | data/evaluation/geeks_fo...ssful_test_scripts/javadata/evaluation/geeks_fo...ssful_test_scripts/java | WRITE_ONE_LINE_C_FUNCTION_TO_FIND_WHE...WRITE_ONE_LINE_C_FUNCTION_TO_FIND_WHE... |
25:45 (70%)20:40 (85%) | view |
| 16 | x 2 | preprocessing/srcpreprocessing/src | code_tokenizer.pycode_tokenizer.py |
573:588 (2%)704:719 (2%) | view |
| 15 | x 2 | XLM/src/dataXLM/src/data | dataset.pydataset.py |
218:238 (5%)440:460 (5%) | view |
Duplicated Units
The list of top 20 duplicated units.
| Size | # | Folders | Files | Lines | Code |
|---|---|---|---|---|---|
| 78 | x 2 | data/evaluation/geeks_fo...ssful_test_scripts/javadata/evaluation/geeks_fo...ssful_test_scripts/java | SORT_EVEN_PLACED_ELEMENTS_INCREASING_...SPLIT_ARRAY_ADD_FIRST_PART_END.java |
28:106 29:107 | view |
| 54 | x 2 | data/evaluation/geeks_fo...ssful_test_scripts/javadata/evaluation/geeks_fo...ssful_test_scripts/java | FIND_THE_MINIMUM_DISTANCE_BETWEEN_TWO...FIND_THE_MINIMUM_DISTANCE_BETWEEN_TWO... |
31:85 42:97 | view |
| 54 | x 2 | data/evaluation/geeks_fo...ssful_test_scripts/javadata/evaluation/geeks_fo...ssful_test_scripts/java | FIND_WHETHER_AN_ARRAY_IS_SUBSET_OF_AN...FIND_WHETHER_AN_ARRAY_IS_SUBSET_OF_AN... |
30:84 33:87 | view |
| 43 | x 2 | data/evaluation/geeks_fo...ssful_test_scripts/javadata/evaluation/geeks_fo...ssful_test_scripts/java | DISTRIBUTING_ITEMS_PERSON_CANNOT_TAKE...DISTRIBUTING_ITEMS_PERSON_CANNOT_TAKE... |
32:75 28:71 | view |
| 32 | x 11 | data/evaluation/geeks_fo...ssful_test_scripts/javadata/evaluation/geeks_fo...ssful_test_scripts/javadata/evaluation/geeks_fo...ssful_test_scripts/javadata/evaluation/geeks_fo...ssful_test_scripts/javadata/evaluation/geeks_fo...ssful_test_scripts/javadata/evaluation/geeks_fo...ssful_test_scripts/javadata/evaluation/geeks_fo...ssful_test_scripts/javadata/evaluation/geeks_fo...ssful_test_scripts/javadata/evaluation/geeks_fo...ssful_test_scripts/javadata/evaluation/geeks_fo...ssful_test_scripts/java... | COUNT_DISTINCT_OCCURRENCES_AS_A_SUBSE...WAYS_TRANSFORMING_ONE_STRING_REMOVING...WILDCARD_CHARACTER_MATCHING.javaCHECK_STRING_CAN_OBTAINED_ROTATING_AN...SPACE_OPTIMIZED_SOLUTION_LCS.javaFIND_ONE_EXTRA_CHARACTER_STRING_1.javaMAXIMUM_LENGTH_PREFIX_ONE_STRING_OCCU...LONGEST_COMMON_SUBSTRING_SPACE_OPTIMI...FIND_NUMBER_TIMES_STRING_OCCURS_GIVEN...CHECK_POSSIBLE_TRANSFORM_ONE_STRING_A...... |
40:72 50:82 24:56 26:58 35:67 31:63 27:59 44:76 39:71 45:77 ... | view |
| 32 | x 4 | data/evaluation/geeks_fo...ssful_test_scripts/javadata/evaluation/geeks_fo...ssful_test_scripts/javadata/evaluation/geeks_fo...ssful_test_scripts/javadata/evaluation/geeks_fo...ssful_test_scripts/java | SUM_TWO_LARGE_NUMBERS.javaSUM_TWO_LARGE_NUMBERS_1.javaMULTIPLY_LARGE_NUMBERS_REPRESENTED_AS...PROGRAM_CENSOR_WORD_ASTERISKS_SENTENC... |
46:78 44:76 49:81 32:64 | view |
| 32 | x 2 | data/evaluation/geeks_fo...ssful_test_scripts/javadata/evaluation/geeks_fo...ssful_test_scripts/java | PROGRAM_COUNT_OCCURRENCE_GIVEN_CHARAC...CHECK_OCCURRENCES_CHARACTER_APPEAR_TO... |
26:58 30:62 | view |
| 32 | x 2 | data/evaluation/geeks_fo...ssful_test_scripts/javadata/evaluation/geeks_fo...ssful_test_scripts/java | PRODUCT_NODES_K_TH_LEVEL_TREE_REPRESE...SUM_NODES_K_TH_LEVEL_TREE_REPRESENTED... |
32:64 32:64 | view |
| 25 | x 2 | data/evaluation/geeks_fo...essful_test_scripts/cppdata/evaluation/geeks_fo...essful_test_scripts/cpp | FIND_WHETHER_AN_ARRAY_IS_SUBSET_OF_AN...FIND_WHETHER_AN_ARRAY_IS_SUBSET_OF_AN... |
35:60 35:60 | view |
| 23 | x 2 | data/evaluation/geeks_fo...essful_test_scripts/cppdata/evaluation/geeks_fo...essful_test_scripts/cpp | SUM_NODES_K_TH_LEVEL_TREE_REPRESENTED...PRODUCT_NODES_K_TH_LEVEL_TREE_REPRESE... |
35:58 35:58 | view |
| 22 | x 2 | data/evaluation/geeks_fo...essful_test_scripts/cppdata/evaluation/geeks_fo...essful_test_scripts/cpp | PANGRAM_CHECKING.cppFIND_EXPRESSION_DUPLICATE_PARENTHESIS... |
35:57 40:62 | view |
| 21 | x 63 | data/evaluation/geeks_fo...ssful_test_scripts/javadata/evaluation/geeks_fo...ssful_test_scripts/javadata/evaluation/geeks_fo...ssful_test_scripts/javadata/evaluation/geeks_fo...ssful_test_scripts/javadata/evaluation/geeks_fo...ssful_test_scripts/javadata/evaluation/geeks_fo...ssful_test_scripts/javadata/evaluation/geeks_fo...ssful_test_scripts/javadata/evaluation/geeks_fo...ssful_test_scripts/javadata/evaluation/geeks_fo...ssful_test_scripts/javadata/evaluation/geeks_fo...ssful_test_scripts/java... | COUNT_CHARACTERS_STRING_DISTANCE_ENGL...LONGEST_PALINDROME_SUBSEQUENCE_SPACE....LONGEST_EVEN_LENGTH_SUBSTRING_SUM_FIR...CHECK_LARGE_NUMBER_DIVISIBLE_9_NOT.javaNUMBER_DIGITS_REMOVED_MAKE_NUMBER_DIV...CHECK_GIVEN_STRING_ROTATION_PALINDROM...COUNT_PALINDROMIC_SUBSEQUENCE_GIVEN_S...CHECK_LARGE_NUMBER_DIVISIBLE_3_NOT.javaLONGEST_PREFIX_ALSO_SUFFIX_1.javaLONGEST_REPEATING_SUBSEQUENCE.java... |
27:48 41:62 39:60 25:46 31:52 23:44 38:59 25:46 42:63 32:53 ... | view |
| 21 | x 16 | data/evaluation/geeks_fo...ssful_test_scripts/javadata/evaluation/geeks_fo...ssful_test_scripts/javadata/evaluation/geeks_fo...ssful_test_scripts/javadata/evaluation/geeks_fo...ssful_test_scripts/javadata/evaluation/geeks_fo...ssful_test_scripts/javadata/evaluation/geeks_fo...ssful_test_scripts/javadata/evaluation/geeks_fo...ssful_test_scripts/javadata/evaluation/geeks_fo...ssful_test_scripts/javadata/evaluation/geeks_fo...ssful_test_scripts/javadata/evaluation/geeks_fo...ssful_test_scripts/java... | PRINT_A_CLOSEST_STRING_THAT_DOES_NOT_...LEXICOGRAPHICALLY_NEXT_STRING.javaLEXICOGRAPHICALLY_MINIMUM_STRING_ROTA...DECODE_MEDIAN_STRING_ORIGINAL_STRING....LEXICOGRAPHICAL_MAXIMUM_SUBSTRING_STR...BINARY_REPRESENTATION_OF_NEXT_NUMBER....REMOVE_BRACKETS_ALGEBRAIC_STRING_CONT...PRINT_WORDS_STRING_REVERSE_ORDER.javaLEXICOGRAPHICAL_CONCATENATION_SUBSTRI...NTH_EVEN_LENGTH_PALINDROME.java... |
31:52 25:46 29:50 40:61 28:49 36:57 45:66 34:55 36:57 24:45 ... | view |
| 21 | x 2 | data/evaluation/geeks_fo...ssful_test_scripts/javadata/evaluation/geeks_fo...ssful_test_scripts/java | WRITE_ONE_LINE_C_FUNCTION_TO_FIND_WHE...WRITE_ONE_LINE_C_FUNCTION_TO_FIND_WHE... |
25:46 20:41 | view |
| 15 | x 2 | data/evaluation/geeks_fo...ssful_test_scripts/javadata/evaluation/geeks_fo...ssful_test_scripts/java | LONGEST_INCREASING_SUBSEQUENCE_1.javaDYNAMIC_PROGRAMMING_SET_3_LONGEST_INC... |
13:28 13:28 | view |
| 15 | x 2 | data/evaluation/geeks_fo...essful_test_scripts/cppdata/evaluation/geeks_fo...essful_test_scripts/cpp | FIND_THE_MINIMUM_DISTANCE_BETWEEN_TWO...FIND_THE_MINIMUM_DISTANCE_BETWEEN_TWO... |
36:51 45:60 | view |
| 15 | x 2 | data/evaluation/geeks_fo...essful_test_scripts/cppdata/evaluation/geeks_fo...essful_test_scripts/cpp | GIVEN_TWO_STRINGS_FIND_FIRST_STRING_S...GIVEN_TWO_STRINGS_FIND_FIRST_STRING_S... |
26:41 27:42 | view |
| 14 | x 2 | data/evaluation/geeks_fo...essful_test_scripts/cppdata/evaluation/geeks_fo...essful_test_scripts/cpp | DISTRIBUTING_ITEMS_PERSON_CANNOT_TAKE...DISTRIBUTING_ITEMS_PERSON_CANNOT_TAKE... |
35:49 28:42 | view |
| 13 | x 13 | data/evaluation/geeks_fo...essful_test_scripts/cppdata/evaluation/geeks_fo...essful_test_scripts/cppdata/evaluation/geeks_fo...essful_test_scripts/cppdata/evaluation/geeks_fo...essful_test_scripts/cppdata/evaluation/geeks_fo...essful_test_scripts/cppdata/evaluation/geeks_fo...essful_test_scripts/cppdata/evaluation/geeks_fo...essful_test_scripts/cppdata/evaluation/geeks_fo...essful_test_scripts/cppdata/evaluation/geeks_fo...essful_test_scripts/cppdata/evaluation/geeks_fo...essful_test_scripts/cpp... | CHECK_POSSIBLE_TRANSFORM_ONE_STRING_A...LONGEST_COMMON_SUBSTRING_SPACE_OPTIMI...FIND_NUMBER_TIMES_STRING_OCCURS_GIVEN...SPACE_OPTIMIZED_SOLUTION_LCS.cppPRINT_SHORTEST_COMMON_SUPERSEQUENCE.cppFIND_ONE_EXTRA_CHARACTER_STRING_1.cppSUM_TWO_LARGE_NUMBERS.cppWAYS_TRANSFORMING_ONE_STRING_REMOVING...SUM_TWO_LARGE_NUMBERS_1.cppCOUNT_DISTINCT_OCCURRENCES_AS_A_SUBSE...... |
48:61 47:60 45:58 38:51 64:77 34:47 45:58 44:57 44:57 42:55 ... | view |
| 13 | x 2 | data/evaluation/geeks_fo...essful_test_scripts/cppdata/evaluation/geeks_fo...essful_test_scripts/cpp | CHECK_OCCURRENCES_CHARACTER_APPEAR_TO...PROGRAM_COUNT_OCCURRENCE_GIVEN_CHARAC... |
33:46 27:40 | view |