lots of exercises in java... from https://github.com/exercism/java

config.json 25KB

123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145146147148149150151152153154155156157158159160161162163164165166167168169170171172173174175176177178179180181182183184185186187188189190191192193194195196197198199200201202203204205206207208209210211212213214215216217218219220221222223224225226227228229230231232233234235236237238239240241242243244245246247248249250251252253254255256257258259260261262263264265266267268269270271272273274275276277278279280281282283284285286287288289290291292293294295296297298299300301302303304305306307308309310311312313314315316317318319320321322323324325326327328329330331332333334335336337338339340341342343344345346347348349350351352353354355356357358359360361362363364365366367368369370371372373374375376377378379380381382383384385386387388389390391392393394395396397398399400401402403404405406407408409410411412413414415416417418419420421422423424425426427428429430431432433434435436437438439440441442443444445446447448449450451452453454455456457458459460461462463464465466467468469470471472473474475476477478479480481482483484485486487488489490491492493494495496497498499500501502503504505506507508509510511512513514515516517518519520521522523524525526527528529530531532533534535536537538539540541542543544545546547548549550551552553554555556557558559560561562563564565566567568569570571572573574575576577578579580581582583584585586587588589590591592593594595596597598599600601602603604605606607608609610611612613614615616617618619620621622623624625626627628629630631632633634635636637638639640641642643644645646647648649650651652653654655656657658659660661662663664665666667668669670671672673674675676677678679680681682683684685686687688689690691692693694695696697698699700701702703704705706707708709710711712713714715716717718719720721722723724725726727728729730731732733734735736737738739740741742743744745746747748749750751752753754755756757758759760761762763764765766767768769770771772773774775776777778779780781782783784785786787788789790791792793794795796797798799800801802803804805806807808809810811812813814815816817818819820821822823824825826827828829830831832833834835836837838839840841842843844845846847848849850851852853854855856857858859860861862863864865866867868869870871872873874875876877878879880881882883884885886887888889890891892893894895896897898899900901902903904905906907908909910911912913914915916917918919920921922923924925926927928929930931932933934935936937938939940941942943944945946947948949950951952953954955956957958959960961962963964965966967968969970971972973974975976977978979980981982983984985986987988989990991992993994995996997998999100010011002100310041005100610071008100910101011101210131014101510161017101810191020102110221023102410251026102710281029103010311032103310341035103610371038103910401041104210431044104510461047104810491050105110521053105410551056105710581059106010611062106310641065106610671068106910701071107210731074107510761077107810791080108110821083108410851086108710881089109010911092109310941095109610971098109911001101110211031104110511061107110811091110111111121113111411151116111711181119112011211122112311241125112611271128112911301131113211331134113511361137113811391140114111421143114411451146114711481149115011511152115311541155115611571158115911601161116211631164116511661167116811691170117111721173117411751176117711781179118011811182118311841185118611871188118911901191119211931194
  1. {
  2. "active": true,
  3. "blurb": "Java is a very widely used Object Oriented programming language. It's safe, simple to use and portable so that you can \"write once, run anywhere\".",
  4. "exercises": [
  5. {
  6. "core": true,
  7. "difficulty": 1,
  8. "slug": "hello-world",
  9. "topics": [
  10. "strings"
  11. ],
  12. "unlocked_by": null,
  13. "uuid": "f77dc7e3-35a8-4300-a7c8-2c1765e9644d"
  14. },
  15. {
  16. "core": true,
  17. "difficulty": 1,
  18. "slug": "two-fer",
  19. "topics": [
  20. "conditionals",
  21. "strings"
  22. ],
  23. "unlocked_by": null,
  24. "uuid": "74515d45-565b-4be2-96c4-77e58efa9257"
  25. },
  26. {
  27. "core": false,
  28. "difficulty": 6,
  29. "slug": "parallel-letter-frequency",
  30. "topics": [
  31. "concurrency",
  32. "maps",
  33. "strings"
  34. ],
  35. "unlocked_by": "hamming",
  36. "uuid": "38a405e8-619d-400f-b53c-2f06461fdf9d"
  37. },
  38. {
  39. "core": false,
  40. "difficulty": 1,
  41. "slug": "reverse-string",
  42. "topics": [
  43. "strings"
  44. ],
  45. "unlocked_by": "two-fer",
  46. "uuid": "2c8afeed-480e-41f3-ad58-590fa8f88029"
  47. },
  48. {
  49. "core": false,
  50. "difficulty": 2,
  51. "slug": "rna-transcription",
  52. "topics": [
  53. "loops",
  54. "maps",
  55. "strings"
  56. ],
  57. "unlocked_by": null,
  58. "uuid": "8e983ed2-62f7-439a-a144-fb8fdbdf4d30"
  59. },
  60. {
  61. "core": false,
  62. "difficulty": 3,
  63. "slug": "pangram",
  64. "topics": [
  65. "pattern_matching",
  66. "regular_expressions",
  67. "strings"
  68. ],
  69. "unlocked_by": null,
  70. "uuid": "133b0f84-bdc7-4508-a0a1-5732a7db81ef"
  71. },
  72. {
  73. "core": true,
  74. "difficulty": 3,
  75. "slug": "hamming",
  76. "topics": [
  77. "integers",
  78. "loops",
  79. "strings"
  80. ],
  81. "unlocked_by": null,
  82. "uuid": "ce899ca6-9cc7-47ba-b76f-1bbcf2630b76"
  83. },
  84. {
  85. "core": true,
  86. "difficulty": 3,
  87. "slug": "gigasecond",
  88. "topics": [
  89. "dates",
  90. "integers",
  91. "time"
  92. ],
  93. "unlocked_by": null,
  94. "uuid": "bf1641c8-dc0d-4d38-9cfe-b4c132ea3553"
  95. },
  96. {
  97. "core": false,
  98. "difficulty": 3,
  99. "slug": "space-age",
  100. "topics": [
  101. "conditionals",
  102. "floating_point_numbers",
  103. "mathematics"
  104. ],
  105. "unlocked_by": null,
  106. "uuid": "e5b524cd-3a1c-468a-8981-13e8eeccb29d"
  107. },
  108. {
  109. "core": false,
  110. "difficulty": 3,
  111. "slug": "acronym",
  112. "topics": [
  113. "loops",
  114. "parsing",
  115. "searching",
  116. "strings"
  117. ],
  118. "unlocked_by": null,
  119. "uuid": "c31bbc6d-bdcf-44f7-bf35-5f98752e38d0"
  120. },
  121. {
  122. "core": true,
  123. "difficulty": 3,
  124. "slug": "scrabble-score",
  125. "topics": [
  126. "games",
  127. "loops",
  128. "pattern_matching",
  129. "strings",
  130. "transforming"
  131. ],
  132. "unlocked_by": null,
  133. "uuid": "afae9f2d-8baf-4bd7-8d7c-d486337f7c97"
  134. },
  135. {
  136. "core": false,
  137. "difficulty": 3,
  138. "slug": "raindrops",
  139. "topics": [
  140. "conditionals",
  141. "integers",
  142. "mathematics",
  143. "strings"
  144. ],
  145. "unlocked_by": "hello-world",
  146. "uuid": "d916e4f8-fda1-41c0-ab24-79e8fc3f1272"
  147. },
  148. {
  149. "core": true,
  150. "difficulty": 3,
  151. "slug": "difference-of-squares",
  152. "topics": [
  153. "integers",
  154. "loops",
  155. "mathematics"
  156. ],
  157. "unlocked_by": null,
  158. "uuid": "b0da59c6-1b55-405c-b163-007ebf09f5e8"
  159. },
  160. {
  161. "core": true,
  162. "difficulty": 3,
  163. "slug": "secret-handshake",
  164. "topics": [
  165. "bitwise_operations",
  166. "conditionals",
  167. "cryptography",
  168. "enumerations",
  169. "integers",
  170. "loops",
  171. "mathematics",
  172. "transforming"
  173. ],
  174. "unlocked_by": null,
  175. "uuid": "71c7c174-7e2c-43c2-bdd6-7515fcb12a91"
  176. },
  177. {
  178. "core": false,
  179. "difficulty": 3,
  180. "slug": "perfect-numbers",
  181. "topics": [
  182. "enumerations",
  183. "exception_handling",
  184. "filtering",
  185. "integers",
  186. "mathematics"
  187. ],
  188. "unlocked_by": "difference-of-squares",
  189. "uuid": "d0dcc898-ec38-4822-9e3c-1a1829c9b2d9"
  190. },
  191. {
  192. "core": false,
  193. "difficulty": 3,
  194. "slug": "protein-translation",
  195. "topics": [
  196. "arrays",
  197. "conditionals",
  198. "loops",
  199. "strings"
  200. ],
  201. "unlocked_by": "rna-transcription",
  202. "uuid": "331073b3-bd1a-4868-b767-a64ce9fd9d97"
  203. },
  204. {
  205. "core": false,
  206. "difficulty": 4,
  207. "slug": "isbn-verifier",
  208. "topics": [
  209. "integers",
  210. "loops",
  211. "strings"
  212. ],
  213. "unlocked_by": "hamming",
  214. "uuid": "838bc1d7-b2de-482a-9bfc-c881b4ccb04c"
  215. },
  216. {
  217. "core": false,
  218. "difficulty": 4,
  219. "slug": "sum-of-multiples",
  220. "topics": [
  221. "arrays",
  222. "conditionals",
  223. "integers",
  224. "loops",
  225. "mathematics"
  226. ],
  227. "unlocked_by": "difference-of-squares",
  228. "uuid": "2f244afc-3e7b-4f89-92af-e2b427f4ef35"
  229. },
  230. {
  231. "core": false,
  232. "difficulty": 4,
  233. "slug": "luhn",
  234. "topics": [
  235. "algorithms",
  236. "booleans",
  237. "loops",
  238. "mathematics",
  239. "strings",
  240. "type_conversion"
  241. ],
  242. "unlocked_by": "hamming",
  243. "uuid": "5227a76c-8ecb-4e5f-b023-6af65a057c41"
  244. },
  245. {
  246. "core": true,
  247. "difficulty": 4,
  248. "slug": "matrix",
  249. "topics": [
  250. "arrays",
  251. "integers",
  252. "loops",
  253. "pattern_matching",
  254. "strings",
  255. "type_conversion"
  256. ],
  257. "unlocked_by": null,
  258. "uuid": "c1d4e0b4-6a0f-4be9-8222-345966621f53"
  259. },
  260. {
  261. "core": true,
  262. "difficulty": 4,
  263. "slug": "triangle",
  264. "topics": [
  265. "booleans",
  266. "classes",
  267. "exception_handling",
  268. "mathematics"
  269. ],
  270. "unlocked_by": null,
  271. "uuid": "ec268d8e-997b-4553-8c67-8bdfa1ecb888"
  272. },
  273. {
  274. "core": false,
  275. "difficulty": 4,
  276. "slug": "largest-series-product",
  277. "topics": [
  278. "integers",
  279. "loops",
  280. "mathematics",
  281. "strings",
  282. "type_conversion"
  283. ],
  284. "unlocked_by": "hamming",
  285. "uuid": "b7310b6e-435c-4d5f-b2bd-31e586d0f238"
  286. },
  287. {
  288. "core": false,
  289. "difficulty": 4,
  290. "slug": "sieve",
  291. "topics": [
  292. "algorithms",
  293. "integers",
  294. "lists",
  295. "loops",
  296. "mathematics"
  297. ],
  298. "unlocked_by": "difference-of-squares",
  299. "uuid": "6791d01f-bae4-4b63-ae76-86529ac49e36"
  300. },
  301. {
  302. "core": false,
  303. "difficulty": 4,
  304. "slug": "twelve-days",
  305. "topics": [
  306. "arrays",
  307. "conditionals",
  308. "loops",
  309. "strings"
  310. ],
  311. "unlocked_by": "two-fer",
  312. "uuid": "581afdbb-dfb6-4dc5-9554-a025b5469a3c"
  313. },
  314. {
  315. "core": true,
  316. "difficulty": 4,
  317. "slug": "rotational-cipher",
  318. "topics": [
  319. "cryptography",
  320. "integers",
  321. "strings"
  322. ],
  323. "unlocked_by": null,
  324. "uuid": "9eb41883-55ef-4681-b5ac-5c2259302772"
  325. },
  326. {
  327. "core": false,
  328. "difficulty": 4,
  329. "slug": "kindergarten-garden",
  330. "topics": [
  331. "arrays",
  332. "enumerations",
  333. "lists",
  334. "logic",
  335. "loops",
  336. "pattern_recognition",
  337. "strings"
  338. ],
  339. "unlocked_by": "matrix",
  340. "uuid": "0b92ffee-c092-4ab1-ad78-76c8cf80e1b5"
  341. },
  342. {
  343. "core": false,
  344. "difficulty": 4,
  345. "slug": "collatz-conjecture",
  346. "topics": [
  347. "conditionals",
  348. "exception_handling",
  349. "integers",
  350. "mathematics",
  351. "recursion"
  352. ],
  353. "unlocked_by": "triangle",
  354. "uuid": "1500d39a-c9d9-4d3a-9e77-fdc1837fc6ad"
  355. },
  356. {
  357. "core": false,
  358. "difficulty": 4,
  359. "slug": "nth-prime",
  360. "topics": [
  361. "arrays",
  362. "exception_handling",
  363. "integers",
  364. "lists",
  365. "loops"
  366. ],
  367. "unlocked_by": "triangle",
  368. "uuid": "2c69db99-648d-4bd7-8012-1fbdeff6ca0a"
  369. },
  370. {
  371. "core": true,
  372. "difficulty": 4,
  373. "slug": "saddle-points",
  374. "topics": [
  375. "arrays",
  376. "conditionals",
  377. "integers",
  378. "lists",
  379. "loops",
  380. "mathematics",
  381. "matrices",
  382. "sets"
  383. ],
  384. "unlocked_by": null,
  385. "uuid": "8dfc2f0d-1141-46e9-95e2-6f35ccf6f160"
  386. },
  387. {
  388. "core": false,
  389. "difficulty": 4,
  390. "slug": "diamond",
  391. "topics": [
  392. "arrays",
  393. "lists",
  394. "loops",
  395. "strings",
  396. "text_formatting"
  397. ],
  398. "unlocked_by": "two-fer",
  399. "uuid": "ecbd997b-86f4-4e11-9ff0-706ac2899415"
  400. },
  401. {
  402. "core": false,
  403. "difficulty": 4,
  404. "slug": "isogram",
  405. "topics": [
  406. "conditionals",
  407. "loops",
  408. "parsing",
  409. "strings"
  410. ],
  411. "unlocked_by": "hello-world",
  412. "uuid": "c3e89c7c-3a8a-4ddc-b653-9b0ff9e1d7d8"
  413. },
  414. {
  415. "core": true,
  416. "difficulty": 5,
  417. "slug": "flatten-array",
  418. "topics": [
  419. "arrays",
  420. "lists",
  421. "loops",
  422. "recursion"
  423. ],
  424. "unlocked_by": null,
  425. "uuid": "a732a838-8170-458a-a85e-d6b4c46f97a1"
  426. },
  427. {
  428. "core": false,
  429. "difficulty": 5,
  430. "slug": "pig-latin",
  431. "topics": [
  432. "arrays",
  433. "lists",
  434. "strings",
  435. "transforming"
  436. ],
  437. "unlocked_by": "hello-world",
  438. "uuid": "38bc80ae-d842-4c04-a797-48edf322504d"
  439. },
  440. {
  441. "core": false,
  442. "difficulty": 5,
  443. "slug": "phone-number",
  444. "topics": [
  445. "conditionals",
  446. "pattern_matching",
  447. "regular_expressions",
  448. "strings"
  449. ],
  450. "unlocked_by": "hamming",
  451. "uuid": "5f9139e7-9fbb-496a-a0d7-a946283033de"
  452. },
  453. {
  454. "core": false,
  455. "difficulty": 5,
  456. "slug": "nucleotide-count",
  457. "topics": [
  458. "conditionals",
  459. "exception_handling",
  460. "integers",
  461. "maps",
  462. "parsing",
  463. "searching",
  464. "strings"
  465. ],
  466. "unlocked_by": "hamming",
  467. "uuid": "2d80fdfc-5bd7-4b67-9fbe-8ab820d89051"
  468. },
  469. {
  470. "core": true,
  471. "difficulty": 5,
  472. "slug": "word-count",
  473. "topics": [
  474. "conditionals",
  475. "integers",
  476. "loops",
  477. "maps",
  478. "strings"
  479. ],
  480. "unlocked_by": null,
  481. "uuid": "3603b770-87a5-4758-91f3-b4d1f9075bc1"
  482. },
  483. {
  484. "core": false,
  485. "difficulty": 5,
  486. "slug": "run-length-encoding",
  487. "topics": [
  488. "integers",
  489. "pattern_matching",
  490. "strings",
  491. "transforming"
  492. ],
  493. "unlocked_by": "rotational-cipher",
  494. "uuid": "4499a3f9-73a7-48bf-8753-d5b6abf588c9"
  495. },
  496. {
  497. "core": true,
  498. "difficulty": 5,
  499. "slug": "robot-name",
  500. "topics": [
  501. "pattern_matching",
  502. "randomness",
  503. "regular_expressions",
  504. "strings",
  505. "text_formatting"
  506. ],
  507. "unlocked_by": null,
  508. "uuid": "d7c2eed9-64c7-4c4a-b45d-c787d460337f"
  509. },
  510. {
  511. "core": false,
  512. "difficulty": 5,
  513. "slug": "prime-factors",
  514. "topics": [
  515. "arrays",
  516. "conditionals",
  517. "integers",
  518. "lists",
  519. "loops",
  520. "mathematics"
  521. ],
  522. "unlocked_by": "triangle",
  523. "uuid": "599c08ec-7338-46ed-99f8-a76f78f724e6"
  524. },
  525. {
  526. "core": false,
  527. "difficulty": 5,
  528. "slug": "allergies",
  529. "topics": [
  530. "booleans",
  531. "conditionals",
  532. "enumerations",
  533. "integers",
  534. "lists",
  535. "loops"
  536. ],
  537. "unlocked_by": "gigasecond",
  538. "uuid": "6a617ddb-04e3-451c-bb30-27ccd0be9125"
  539. },
  540. {
  541. "core": false,
  542. "difficulty": 5,
  543. "slug": "bob",
  544. "topics": [
  545. "booleans",
  546. "conditionals",
  547. "strings"
  548. ],
  549. "unlocked_by": "two-fer",
  550. "uuid": "34cd328c-cd96-492b-abd4-2b8716cdcd9a"
  551. },
  552. {
  553. "core": false,
  554. "difficulty": 5,
  555. "slug": "pascals-triangle",
  556. "topics": [
  557. "algorithms",
  558. "arrays",
  559. "exception_handling",
  560. "integers",
  561. "mathematics",
  562. "matrices"
  563. ],
  564. "unlocked_by": "matrix",
  565. "uuid": "d2a76905-1c8c-4b03-b4f7-4fbff19329f3"
  566. },
  567. {
  568. "core": false,
  569. "difficulty": 5,
  570. "slug": "bracket-push",
  571. "topics": [
  572. "stacks",
  573. "strings"
  574. ],
  575. "unlocked_by": "flatten-array",
  576. "uuid": "85aa50ac-0141-49eb-bc6f-62f3f7a97647"
  577. },
  578. {
  579. "core": false,
  580. "difficulty": 5,
  581. "slug": "series",
  582. "topics": [
  583. "conditionals",
  584. "lists",
  585. "loops",
  586. "strings",
  587. "type_conversion"
  588. ],
  589. "unlocked_by": "hamming",
  590. "uuid": "af80d7f4-c7d0-4d0b-9c30-09da120f6bb9"
  591. },
  592. {
  593. "core": false,
  594. "difficulty": 5,
  595. "slug": "atbash-cipher",
  596. "topics": [
  597. "cryptography",
  598. "security",
  599. "strings"
  600. ],
  601. "unlocked_by": "rotational-cipher",
  602. "uuid": "d36ce010-210f-4e9a-9d6c-cb933e0a59af"
  603. },
  604. {
  605. "core": false,
  606. "difficulty": 6,
  607. "slug": "spiral-matrix",
  608. "topics": [
  609. "arrays",
  610. "integers",
  611. "loops",
  612. "mathematics",
  613. "matrices"
  614. ],
  615. "unlocked_by": "matrix",
  616. "uuid": "163fcc6b-c054-4232-a88b-0aded846a6eb"
  617. },
  618. {
  619. "core": false,
  620. "difficulty": 6,
  621. "slug": "roman-numerals",
  622. "topics": [
  623. "integers",
  624. "logic",
  625. "loops",
  626. "maps",
  627. "mathematics",
  628. "strings"
  629. ],
  630. "unlocked_by": "hamming",
  631. "uuid": "3e728cd4-5e5f-4c69-8a53-bc36d020fcdb"
  632. },
  633. {
  634. "core": false,
  635. "difficulty": 6,
  636. "slug": "transpose",
  637. "topics": [
  638. "arrays",
  639. "lists",
  640. "loops",
  641. "matrices",
  642. "strings",
  643. "text_formatting"
  644. ],
  645. "unlocked_by": "matrix",
  646. "uuid": "57b76837-4610-466f-9373-d5c2697625f1"
  647. },
  648. {
  649. "core": false,
  650. "difficulty": 6,
  651. "slug": "house",
  652. "topics": [
  653. "arrays",
  654. "conditionals",
  655. "loops",
  656. "strings",
  657. "text_formatting"
  658. ],
  659. "unlocked_by": "two-fer",
  660. "uuid": "6b51aca3-3451-4a64-ad7b-00b151d7548a"
  661. },
  662. {
  663. "core": false,
  664. "difficulty": 6,
  665. "slug": "food-chain",
  666. "topics": [
  667. "arrays",
  668. "lists",
  669. "strings"
  670. ],
  671. "unlocked_by": "two-fer",
  672. "uuid": "dd3e6fd6-5359-4978-acd7-c39374cead4d"
  673. },
  674. {
  675. "core": false,
  676. "difficulty": 6,
  677. "slug": "beer-song",
  678. "topics": [
  679. "conditionals",
  680. "loops",
  681. "strings",
  682. "text_formatting",
  683. "variables"
  684. ],
  685. "unlocked_by": "two-fer",
  686. "uuid": "56943095-de76-40bf-b42b-fa3e70f8df5e"
  687. },
  688. {
  689. "core": false,
  690. "difficulty": 6,
  691. "slug": "queen-attack",
  692. "topics": [
  693. "arrays",
  694. "classes",
  695. "conditionals",
  696. "games",
  697. "mathematics",
  698. "matrices"
  699. ],
  700. "unlocked_by": "scrabble-score",
  701. "uuid": "5404109e-3ed9-4691-8eaf-af8b36024a44"
  702. },
  703. {
  704. "core": false,
  705. "difficulty": 6,
  706. "slug": "etl",
  707. "topics": [
  708. "lists",
  709. "maps",
  710. "transforming"
  711. ],
  712. "unlocked_by": "word-count",
  713. "uuid": "76d28d97-75d3-47eb-bb77-3d347b76f1b6"
  714. },
  715. {
  716. "core": false,
  717. "difficulty": 6,
  718. "slug": "grade-school",
  719. "topics": [
  720. "conditionals",
  721. "lists",
  722. "maps",
  723. "sorting",
  724. "strings"
  725. ],
  726. "unlocked_by": "word-count",
  727. "uuid": "b4af5da1-601f-4b0f-bfb8-4a381851090c"
  728. },
  729. {
  730. "core": false,
  731. "difficulty": 6,
  732. "slug": "robot-simulator",
  733. "topics": [
  734. "classes",
  735. "enumerations",
  736. "logic",
  737. "loops"
  738. ],
  739. "unlocked_by": "secret-handshake",
  740. "uuid": "993bde9d-7774-4e7a-a381-9eee75f28ecb"
  741. },
  742. {
  743. "core": true,
  744. "difficulty": 6,
  745. "slug": "binary-search",
  746. "topics": [
  747. "recursion",
  748. "arrays",
  749. "searching",
  750. "generics"
  751. ],
  752. "unlocked_by": null,
  753. "uuid": "50136dc3-caf7-4fa1-b7bd-0cba1bea9176"
  754. },
  755. {
  756. "core": false,
  757. "difficulty": 6,
  758. "slug": "minesweeper",
  759. "topics": [
  760. "conditionals",
  761. "games",
  762. "integers",
  763. "lists",
  764. "matrices",
  765. "strings"
  766. ],
  767. "unlocked_by": "scrabble-score",
  768. "uuid": "416a1489-12af-4593-8540-0f55285c96b4"
  769. },
  770. {
  771. "core": false,
  772. "difficulty": 6,
  773. "slug": "wordy",
  774. "topics": [
  775. "exception_handling",
  776. "integers",
  777. "logic",
  778. "parsing",
  779. "pattern_matching",
  780. "regular_expressions",
  781. "strings",
  782. "transforming"
  783. ],
  784. "unlocked_by": "secret-handshake",
  785. "uuid": "3310a3cd-c0cb-45fa-8c51-600178be904a"
  786. },
  787. {
  788. "core": false,
  789. "difficulty": 6,
  790. "slug": "all-your-base",
  791. "topics": [
  792. "arrays",
  793. "conditionals",
  794. "exception_handling",
  795. "integers",
  796. "loops",
  797. "mathematics"
  798. ],
  799. "unlocked_by": "saddle-points",
  800. "uuid": "f7c2e4b5-1995-4dfe-b827-c9aff8ac5332"
  801. },
  802. {
  803. "core": true,
  804. "difficulty": 6,
  805. "slug": "bank-account",
  806. "topics": [
  807. "concurrency",
  808. "exception_handling",
  809. "integers"
  810. ],
  811. "unlocked_by": null,
  812. "uuid": "a242efc5-159d-492b-861d-12a1459fb334"
  813. },
  814. {
  815. "core": false,
  816. "difficulty": 6,
  817. "slug": "bowling",
  818. "topics": [
  819. "conditionals",
  820. "exception_handling",
  821. "games",
  822. "integers",
  823. "mathematics"
  824. ],
  825. "unlocked_by": "scrabble-score",
  826. "uuid": "4b3f7771-c642-4278-a3d9-2fb958f26361"
  827. },
  828. {
  829. "core": true,
  830. "difficulty": 6,
  831. "slug": "linked-list",
  832. "topics": [
  833. "algorithms",
  834. "generics",
  835. "lists"
  836. ],
  837. "unlocked_by": null,
  838. "uuid": "7ba5084d-3b75-4406-a0d7-87c26387f9c0"
  839. },
  840. {
  841. "core": false,
  842. "difficulty": 6,
  843. "slug": "tournament",
  844. "topics": [
  845. "loops",
  846. "maps",
  847. "parsing",
  848. "sorting",
  849. "text_formatting"
  850. ],
  851. "unlocked_by": "matrix",
  852. "uuid": "486d342e-c834-40fc-b691-a4dab3f790da"
  853. },
  854. {
  855. "core": false,
  856. "difficulty": 7,
  857. "slug": "anagram",
  858. "topics": [
  859. "arrays",
  860. "conditionals",
  861. "equality",
  862. "lists",
  863. "loops",
  864. "strings"
  865. ],
  866. "unlocked_by": "hello-world",
  867. "uuid": "fb10dc2f-0ba1-44b6-8365-5e48e86d1283"
  868. },
  869. {
  870. "core": false,
  871. "difficulty": 7,
  872. "slug": "sublist",
  873. "topics": [
  874. "enumeration",
  875. "generics",
  876. "lists",
  877. "loops",
  878. "searching"
  879. ],
  880. "unlocked_by": "linked-list",
  881. "uuid": "d2aedbd7-092a-43d0-8a5e-ae3ebd5b9c7f"
  882. },
  883. {
  884. "core": false,
  885. "difficulty": 7,
  886. "slug": "word-search",
  887. "topics": [
  888. "games",
  889. "logic",
  890. "matrices",
  891. "pattern_matching",
  892. "searching",
  893. "strings"
  894. ],
  895. "unlocked_by": "scrabble-score",
  896. "uuid": "b53bde52-cb5f-4d43-86ec-18aa509d62f9"
  897. },
  898. {
  899. "core": false,
  900. "difficulty": 7,
  901. "slug": "simple-linked-list",
  902. "topics": [
  903. "algorithms",
  904. "exception_handling",
  905. "generics",
  906. "lists"
  907. ],
  908. "unlocked_by": "linked-list",
  909. "uuid": "e3e5ffe5-cfc1-467e-a28a-da0302130144"
  910. },
  911. {
  912. "core": false,
  913. "difficulty": 7,
  914. "slug": "binary-search-tree",
  915. "topics": [
  916. "generics",
  917. "graphs",
  918. "searching",
  919. "sorting",
  920. "trees"
  921. ],
  922. "unlocked_by": "binary-search",
  923. "uuid": "0a2d18aa-7b5e-4401-a952-b93d2060694f"
  924. },
  925. {
  926. "core": false,
  927. "difficulty": 7,
  928. "slug": "meetup",
  929. "topics": [
  930. "conditionals",
  931. "dates",
  932. "enumerations",
  933. "loops"
  934. ],
  935. "unlocked_by": "gigasecond",
  936. "uuid": "602511d5-7e89-4def-b072-4dd311816810"
  937. },
  938. {
  939. "core": false,
  940. "difficulty": 7,
  941. "slug": "crypto-square",
  942. "topics": [
  943. "cryptography",
  944. "lists",
  945. "mathematics",
  946. "security",
  947. "strings",
  948. "text_formatting"
  949. ],
  950. "unlocked_by": "rotational-cipher",
  951. "uuid": "162bebdc-9bf2-43c0-8460-a91f5fc16147"
  952. },
  953. {
  954. "core": false,
  955. "difficulty": 7,
  956. "slug": "markdown",
  957. "topics": [
  958. "strings",
  959. "conditionals",
  960. "pattern_matching",
  961. "refactoring"
  962. ],
  963. "unlocked_by": "scrabble-score",
  964. "uuid": "cc18f2e5-4e36-47d6-aa60-8ca5ff54019a"
  965. },
  966. {
  967. "core": false,
  968. "difficulty": 7,
  969. "slug": "poker",
  970. "topics": [
  971. "games",
  972. "parsing",
  973. "sorting"
  974. ],
  975. "unlocked_by": "scrabble-score",
  976. "uuid": "57eeac00-741c-4843-907a-51f0ac5ea4cb"
  977. },
  978. {
  979. "core": false,
  980. "difficulty": 7,
  981. "slug": "clock",
  982. "topics": [
  983. "equality",
  984. "integers",
  985. "logic",
  986. "object_oriented_programming",
  987. "strings",
  988. "time"
  989. ],
  990. "unlocked_by": "saddle-points",
  991. "uuid": "97c8fcd4-85b6-41cb-9de2-b4e1b4951222"
  992. },
  993. {
  994. "core": false,
  995. "difficulty": 8,
  996. "slug": "ocr-numbers",
  997. "topics": [
  998. "exception_handling",
  999. "lists",
  1000. "loops",
  1001. "parsing",
  1002. "strings"
  1003. ],
  1004. "unlocked_by": "robot-name",
  1005. "uuid": "5cbc6a67-3a53-4aad-ae68-ff469525437f"
  1006. },
  1007. {
  1008. "core": false,
  1009. "difficulty": 8,
  1010. "slug": "circular-buffer",
  1011. "topics": [
  1012. "classes",
  1013. "exception_handling",
  1014. "queues"
  1015. ],
  1016. "unlocked_by": "linked-list",
  1017. "uuid": "626dc25a-062c-4053-a8c1-788e4dc44ca0"
  1018. },
  1019. {
  1020. "core": false,
  1021. "difficulty": 8,
  1022. "slug": "rectangles",
  1023. "topics": [
  1024. "arrays",
  1025. "logic",
  1026. "pattern_recognition",
  1027. "strings"
  1028. ],
  1029. "unlocked_by": "robot-name",
  1030. "uuid": "64cda115-919a-4eef-9a45-9ec5d1af98cc"
  1031. },
  1032. {
  1033. "core": false,
  1034. "difficulty": 8,
  1035. "slug": "book-store",
  1036. "topics": [
  1037. "algorithms",
  1038. "floating_point_numbers",
  1039. "integers",
  1040. "lists",
  1041. "mathematics"
  1042. ],
  1043. "unlocked_by": "flatten-array",
  1044. "uuid": "e5f05d00-fe5b-4d78-b2fa-934c1c9afb32"
  1045. },
  1046. {
  1047. "core": false,
  1048. "difficulty": 8,
  1049. "slug": "simple-cipher",
  1050. "topics": [
  1051. "cryptography",
  1052. "exception_handling",
  1053. "mathematics",
  1054. "randomness",
  1055. "security",
  1056. "strings"
  1057. ],
  1058. "unlocked_by": "rotational-cipher",
  1059. "uuid": "f654831f-c34b-44f5-9dd5-054efbb486f2"
  1060. },
  1061. {
  1062. "core": false,
  1063. "difficulty": 8,
  1064. "slug": "complex-numbers",
  1065. "topics": [
  1066. "classes",
  1067. "floating_point_numbers",
  1068. "mathematics"
  1069. ],
  1070. "unlocked_by": "triangle",
  1071. "uuid": "52d11278-0d65-4b5b-b387-1374fced3243"
  1072. },
  1073. {
  1074. "core": false,
  1075. "difficulty": 8,
  1076. "slug": "list-ops",
  1077. "topics": [
  1078. "filtering",
  1079. "functional_programming",
  1080. "generics",
  1081. "lists",
  1082. "loops"
  1083. ],
  1084. "unlocked_by": "linked-list",
  1085. "uuid": "a9836565-5c39-4285-b83a-53408be36ccc"
  1086. },
  1087. {
  1088. "core": false,
  1089. "difficulty": 8,
  1090. "slug": "change",
  1091. "topics": [
  1092. "algorithms",
  1093. "exception_handling",
  1094. "integers",
  1095. "lists"
  1096. ],
  1097. "unlocked_by": "flatten-array",
  1098. "uuid": "bac1f4bc-eea9-43c1-8e95-097347f5925e"
  1099. },
  1100. {
  1101. "core": false,
  1102. "difficulty": 8,
  1103. "slug": "palindrome-products",
  1104. "topics": [
  1105. "conditionals",
  1106. "integers",
  1107. "lists",
  1108. "loops",
  1109. "maps",
  1110. "mathematics"
  1111. ],
  1112. "unlocked_by": "saddle-points",
  1113. "uuid": "873c05de-b5f5-4c5b-97f0-d1ede8a82832"
  1114. },
  1115. {
  1116. "core": false,
  1117. "difficulty": 9,
  1118. "slug": "pythagorean-triplet",
  1119. "topics": [
  1120. "integer",
  1121. "lists",
  1122. "logic",
  1123. "mathematics"
  1124. ],
  1125. "unlocked_by": "triangle",
  1126. "uuid": "88505f95-89e5-4a08-8ed2-208eb818cdf1"
  1127. },
  1128. {
  1129. "core": false,
  1130. "difficulty": 9,
  1131. "slug": "forth",
  1132. "topics": [
  1133. "exception_handling",
  1134. "lists",
  1135. "logic",
  1136. "parsing",
  1137. "stacks",
  1138. "strings"
  1139. ],
  1140. "unlocked_by": "secret-handshake",
  1141. "uuid": "f0c0316d-3fb5-455e-952a-91161e7fb298"
  1142. },
  1143. {
  1144. "core": false,
  1145. "difficulty": 10,
  1146. "slug": "custom-set",
  1147. "topics": [
  1148. "equality",
  1149. "generics",
  1150. "sets"
  1151. ],
  1152. "unlocked_by": "linked-list",
  1153. "uuid": "377fe38b-08ad-4f3a-8118-a43c10f7b9b2"
  1154. },
  1155. {
  1156. "deprecated": true,
  1157. "slug": "accumulate",
  1158. "uuid": "e58c29d2-80a7-40ef-bed0-4a184ae35f34"
  1159. },
  1160. {
  1161. "deprecated": true,
  1162. "slug": "binary",
  1163. "uuid": "9ea6e0fa-b91d-4d17-ac8f-6d2dc30fdd44"
  1164. },
  1165. {
  1166. "deprecated": true,
  1167. "slug": "hexadecimal",
  1168. "uuid": "6fe53a08-c123-465d-864a-ef18217203c4"
  1169. },
  1170. {
  1171. "deprecated": true,
  1172. "slug": "octal",
  1173. "uuid": "14a29e82-f9b1-4662-b678-06992e306c01"
  1174. },
  1175. {
  1176. "deprecated": true,
  1177. "slug": "strain",
  1178. "uuid": "2d195cd9-1814-490a-8dd6-a2c676f1d4cd"
  1179. },
  1180. {
  1181. "deprecated": true,
  1182. "slug": "trinary",
  1183. "uuid": "ee3a8abe-6b19-4b47-9cf6-4d39ae915fb7"
  1184. }
  1185. ],
  1186. "foregone": [
  1187. "leap",
  1188. "grains",
  1189. "say"
  1190. ],
  1191. "language": "Java",
  1192. "solution_pattern": "reference"
  1193. }