{"id":2781,"date":"2025-12-27T20:14:39","date_gmt":"2025-12-27T13:14:39","guid":{"rendered":"https:\/\/kienthucmo.com\/?p=2781"},"modified":"2026-01-20T00:04:17","modified_gmt":"2026-01-19T17:04:17","slug":"cracking-the-coding-interview-189-programming-questions-and-solutions","status":"publish","type":"post","link":"https:\/\/kienthucmo.com\/vi\/cracking-the-coding-interview-189-programming-questions-and-solutions\/","title":{"rendered":"Cracking the Coding Interview: 189 Programming Questions and Solutions"},"content":{"rendered":"\n<p>Trong th\u1ebf gi\u1edbi tuy\u1ec3n d\u1ee5ng ng\u00e0nh c\u00f4ng ngh\u1ec7 th\u00f4ng tin \u2013 n\u01a1i c\u1ea1nh tranh tuy\u1ec3n ch\u1ecdn nh\u00e2n t\u00e0i di\u1ec5n ra kh\u1ed1c li\u1ec7t, vi\u1ec7c chu\u1ea9n b\u1ecb k\u1ef9 l\u01b0\u1ee1ng cho c\u00e1c v\u00f2ng ph\u1ecfng v\u1ea5n l\u1eadp tr\u00ecnh l\u00e0 y\u1ebfu t\u1ed1 quy\u1ebft \u0111\u1ecbnh th\u00e0nh b\u1ea1i c\u1ee7a \u1ee9ng vi\u00ean. T\u1ea1i c\u00e1c c\u00f4ng ty c\u00f4ng ngh\u1ec7 h\u00e0ng \u0111\u1ea7u th\u1ebf gi\u1edbi nh\u01b0 Google, Amazon, Microsoft hay Facebook, c\u00e1c bu\u1ed5i \u201ctechnical interview\u201d (ph\u1ecfng v\u1ea5n k\u1ef9 thu\u1eadt) th\u01b0\u1eddng kh\u00f4ng ch\u1ec9 l\u00e0 ki\u1ec3m tra ki\u1ebfn th\u1ee9c chuy\u00ean m\u00f4n c\u01a1 b\u1ea3n m\u00e0 c\u00f2n th\u00e1ch th\u1ee9c kh\u1ea3 n\u0103ng t\u01b0 duy, thu\u1eadt to\u00e1n v\u00e0 gi\u1ea3i quy\u1ebft v\u1ea5n \u0111\u1ec1 c\u1ee7a \u1ee9ng vi\u00ean. Trong b\u1ed1i c\u1ea3nh \u0111\u00f3, m\u1ed9t t\u00e0i li\u1ec7u \u0111\u00e3 tr\u1edf th\u00e0nh \u201ckim ch\u1ec9 nam\u201d cho h\u00e0ng tr\u0103m ngh\u00ecn l\u1eadp tr\u00ecnh vi\u00ean tr\u00ean to\u00e0n c\u1ea7u: <em>Cracking the Coding Interview<\/em>. Cu\u1ed1n s\u00e1ch n\u00e0y kh\u00f4ng ch\u1ec9 t\u1ed5ng h\u1ee3p h\u00e0ng tr\u0103m c\u00e2u h\u1ecfi ph\u1ecfng v\u1ea5n th\u1ef1c t\u1ebf m\u00e0 c\u00f2n cung c\u1ea5p chi\u1ebfn l\u01b0\u1ee3c, ph\u01b0\u01a1ng ph\u00e1p ti\u1ebfp c\u1eadn v\u00e0 l\u1eddi gi\u1ea3i chi ti\u1ebft gi\u00fap ng\u01b0\u1eddi \u0111\u1ecdc t\u1ef1 tin b\u01b0\u1edbc v\u00e0o nh\u1eefng v\u00f2ng thi gay c\u1ea5n nh\u1ea5t<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">1. Th\u00f4ng tin c\u01a1 b\u1ea3n v\u1ec1 cu\u1ed1n s\u00e1ch<\/h2>\n\n\n\n<p><em>Cracking the Coding Interview: 189 Programming Questions and Solutions<\/em> l\u00e0 m\u1ed9t cu\u1ed1n s\u00e1ch tham kh\u1ea3o d\u00e0nh cho nh\u1eefng ng\u01b0\u1eddi chu\u1ea9n b\u1ecb ph\u1ecfng v\u1ea5n k\u1ef9 thu\u1eadt trong ng\u00e0nh c\u00f4ng ngh\u1ec7 th\u00f4ng tin. T\u00e1c gi\u1ea3 c\u1ee7a cu\u1ed1n s\u00e1ch, <strong>Gayle Laakmann McDowell<\/strong>, l\u00e0 m\u1ed9t k\u1ef9 s\u01b0 ph\u1ea7n m\u1ec1m c\u00f3 kinh nghi\u1ec7m th\u1ef1c ti\u1ec5n s\u00e2u s\u1eafc trong c\u00e1c quy tr\u00ecnh tuy\u1ec3n d\u1ee5ng k\u1ef9 thu\u1eadt, \u0111\u1ed3ng th\u1eddi l\u00e0 ng\u01b0\u1eddi s\u00e1ng l\u1eadp trang web <strong>CareerCup<\/strong> \u2013 m\u1ed9t n\u1ec1n t\u1ea3ng chia s\u1ebb ki\u1ebfn th\u1ee9c v\u00e0 kinh nghi\u1ec7m ph\u1ecfng v\u1ea5n k\u1ef9 thu\u1eadt.<\/p>\n\n\n\n<p>Cu\u1ed1n s\u00e1ch l\u1ea7n \u0111\u1ea7u \u0111\u01b0\u1ee3c xu\u1ea5t b\u1ea3n d\u01b0\u1edbi d\u1ea1ng ebook v\u00e0 b\u1ea3n in theo y\u00eau c\u1ea7u t\u1eeb n\u0103m 2008, sau \u0111\u00f3 li\u00ean t\u1ee5c \u0111\u01b0\u1ee3c c\u1eadp nh\u1eadt v\u00e0 hi\u1ec7n \u0111\u00e3 c\u00f3 \u0111\u1ebfn <strong>phi\u00ean b\u1ea3n th\u1ee9 6<\/strong>, v\u1edbi nhi\u1ec1u b\u1ed5 sung m\u1edf r\u1ed9ng n\u1ed9i dung v\u00e0 \u0111\u1ecbnh d\u1ea1ng. T\u00ednh \u0111\u1ebfn nay, s\u00e1ch \u0111\u00e3 ph\u00e1t h\u00e0nh h\u00e0ng tr\u0103m ngh\u00ecn b\u1ea3n v\u00e0 n\u1eb1m trong danh s\u00e1ch nh\u1eefng cu\u1ed1n s\u00e1ch b\u00e1n ch\u1ea1y nh\u1ea5t v\u1ec1 ch\u1ee7 \u0111\u1ec1 ph\u1ecfng v\u1ea5n k\u1ef9 thu\u1eadt tr\u00ean c\u00e1c n\u1ec1n t\u1ea3ng b\u00e1n s\u00e1ch tr\u1ef1c tuy\u1ebfn<\/p>\n\n\n\n<p>N\u1ed9i dung ch\u00ednh c\u1ee7a cu\u1ed1n s\u00e1ch \u0111\u01b0\u1ee3c vi\u1ebft b\u1eb1ng ti\u1ebfng Anh, t\u1eadp trung v\u00e0o l\u1eadp tr\u00ecnh, thu\u1eadt to\u00e1n v\u00e0 k\u1ef9 n\u0103ng t\u01b0 duy gi\u1ea3i quy\u1ebft v\u1ea5n \u0111\u1ec1. Ph\u1ea7n l\u1edbn l\u1eddi gi\u1ea3i \u0111\u01b0\u1ee3c tr\u00ecnh b\u00e0y b\u1eb1ng ng\u00f4n ng\u1eef Java, k\u00e8m theo m\u00e3 ngu\u1ed3n m\u1eabu c\u1ee5 th\u1ec3. \u0110\u00e2y l\u00e0 m\u1ed9t t\u00e0i li\u1ec7u tham kh\u1ea3o phong ph\u00fa cho c\u00e1c ki\u1ebfn th\u1ee9c n\u1ec1n t\u1ea3ng v\u00e0 c\u00e1c th\u00e1ch th\u1ee9c th\u01b0\u1eddng g\u1eb7p trong c\u00e1c v\u00f2ng ph\u1ecfng v\u1ea5n l\u1eadp tr\u00ecnh.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">2. T\u00f3m t\u1eaft s\u01a1 l\u01b0\u1ee3c n\u1ed9i dung<\/h2>\n\n\n\n<p>M\u1ee5c ti\u00eau ch\u00ednh c\u1ee7a <em>Cracking the Coding Interview<\/em> l\u00e0 trang b\u1ecb cho ng\u01b0\u1eddi \u0111\u1ecdc nh\u1eefng ki\u1ebfn th\u1ee9c v\u00e0 k\u1ef9 thu\u1eadt c\u1ea7n thi\u1ebft \u0111\u1ec3 v\u01b0\u1ee3t qua nh\u1eefng v\u00f2ng ph\u1ecfng v\u1ea5n kh\u00f3 kh\u0103n nh\u1ea5t trong ng\u00e0nh k\u1ef9 thu\u1eadt ph\u1ea7n m\u1ec1m. N\u1ed9i dung s\u00e1ch \u0111\u01b0\u1ee3c t\u1ed5 ch\u1ee9c theo c\u1ea5u tr\u00fac logic, d\u1ec5 theo d\u00f5i v\u00e0 th\u1ef1c h\u00e0nh, bao g\u1ed3m hai ph\u1ea7n ch\u00ednh:<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">2.1 Ki\u1ebfn th\u1ee9c v\u00e0 quy tr\u00ecnh ph\u1ecfng v\u1ea5n<\/h3>\n\n\n\n<p>Ph\u1ea7n \u0111\u1ea7u c\u1ee7a s\u00e1ch gi\u1edbi thi\u1ec7u quy tr\u00ecnh ph\u1ecfng v\u1ea5n k\u1ef9 thu\u1eadt t\u1ea1i c\u00e1c c\u00f4ng ty c\u00f4ng ngh\u1ec7 l\u1edbn \u2013 t\u1eeb c\u00e1ch chu\u1ea9n b\u1ecb s\u01a1 y\u1ebfu l\u00fd l\u1ecbch (CV), hi\u1ec3u c\u1ea5u tr\u00fac c\u00e1c v\u00f2ng thi, \u0111\u1ebfn c\u00e1ch \u0111\u1eb7t c\u00e2u h\u1ecfi v\u00e0 ph\u1ea3n \u1ee9ng \u1ee9ng x\u1eed trong ph\u1ecfng v\u1ea5n h\u00e0nh vi. Cu\u1ed1n s\u00e1ch gi\u1ea3i th\u00edch chi ti\u1ebft c\u00e1ch c\u00e1c nh\u00e0 tuy\u1ec3n d\u1ee5ng \u0111\u00e1nh gi\u00e1 k\u1ef9 n\u0103ng \u1ee9ng vi\u00ean th\u00f4ng qua c\u00e1c c\u00e2u h\u1ecfi l\u1eadp tr\u00ecnh, bao g\u1ed3m c\u1ea3 nh\u1eefng thu\u1eadt to\u00e1n v\u00e0 c\u1ea5u tr\u00fac d\u1eef li\u1ec7u c\u01a1 b\u1ea3n nh\u1ea5t. M\u1ee5c n\u00e0y gi\u00fap ng\u01b0\u1eddi \u0111\u1ecdc kh\u00f4ng ch\u1ec9 hi\u1ec3u c\u00e2u h\u1ecfi, m\u00e0 c\u00f2n n\u1eafm \u0111\u01b0\u1ee3c <em>logic \u0111\u1eb1ng sau c\u00e1c c\u00e2u h\u1ecfi<\/em>, t\u1eeb \u0111\u00f3 x\u00e2y d\u1ef1ng t\u01b0 duy gi\u1ea3i quy\u1ebft v\u1ea5n \u0111\u1ec1 \u0111\u00fang m\u1ef1c<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">2.2 Th\u01b0 vi\u1ec7n c\u00e2u h\u1ecfi v\u00e0 l\u1eddi gi\u1ea3i chi ti\u1ebft<\/h3>\n\n\n\n<p>Ph\u1ea7n l\u1edbn n\u1ed9i dung c\u1ee7a s\u00e1ch l\u00e0 danh s\u00e1ch d\u00e0i c\u00e1c c\u00e2u h\u1ecfi ph\u1ecfng v\u1ea5n th\u1ef1c t\u1ebf (189 c\u00e2u \u1edf phi\u00ean b\u1ea3n m\u1edbi nh\u1ea5t), ph\u00e2n chia theo t\u1eebng ch\u1ee7 \u0111\u1ec1 tr\u1ecdng t\u00e2m nh\u01b0:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>C\u1ea5u tr\u00fac d\u1eef li\u1ec7u: m\u1ea3ng, chu\u1ed7i, danh s\u00e1ch li\u00ean k\u1ebft, c\u00e2y \u2013 \u0111\u1ed3 th\u1ecb.<\/li>\n\n\n\n<li>C\u00e1c thu\u1eadt to\u00e1n c\u01a1 b\u1ea3n: s\u1eafp x\u1ebfp, t\u00ecm ki\u1ebfm, \u0111\u1ec7 quy, l\u1eadp tr\u00ecnh \u0111\u1ed9ng. <\/li>\n\n\n\n<li>Ph\u00e9p to\u00e1n x\u1eed l\u00fd bit. <\/li>\n\n\n\n<li>Thi\u1ebft k\u1ebf h\u1ec7 th\u1ed1ng v\u00e0 ki\u1ebfn tr\u00fac ph\u1ea7n m\u1ec1m (system design) trong c\u00e1c phi\u00ean b\u1ea3n c\u1eadp nh\u1eadt g\u1ea7n \u0111\u00e2y. <\/li>\n\n\n\n<li>C\u00e1c t\u00ecnh hu\u1ed1ng logic, \u0111\u1ed1 m\u1eb9o v\u00e0 c\u00e1c b\u00e0i to\u00e1n ki\u1ec3m th\u1eed.<\/li>\n<\/ul>\n\n\n\n<p>M\u1ed7i c\u00e2u h\u1ecfi \u0111\u1ec1u \u0111i k\u00e8m v\u1edbi l\u1eddi gi\u1ea3i chi ti\u1ebft, c\u00e1c chi\u1ebfn l\u01b0\u1ee3c ph\u00e2n t\u00edch v\u1ea5n \u0111\u1ec1, c\u00e1ch t\u1ed1i \u01b0u h\u00f3a thu\u1eadt to\u00e1n, v\u00e0 c\u00e1c \u0111o\u1ea1n m\u00e3 m\u1eabu minh h\u1ecda b\u1eb1ng Java. Ph\u1ea7n l\u1eddi gi\u1ea3i kh\u00f4ng ch\u1ec9 cung c\u1ea5p \u0111\u00e1p \u00e1n cu\u1ed1i c\u00f9ng m\u00e0 c\u00f2n h\u01b0\u1edbng d\u1eabn ng\u01b0\u1eddi \u0111\u1ecdc c\u00e1ch t\u01b0 duy, ph\u00e2n t\u00edch t\u1eebng b\u01b0\u1edbc \u2013 \u0111i\u1ec1u r\u1ea5t quan tr\u1ecdng trong m\u1ed9t bu\u1ed5i ph\u1ecfng v\u1ea5n th\u1ef1c t\u1ebf.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">3. V\u00ec sao b\u1ea1n n\u00ean \u0111\u1ecdc cu\u1ed1n s\u00e1ch n\u00e0y?<\/h2>\n\n\n\n<p>Hi\u1ec7n nay c\u00f3 r\u1ea5t nhi\u1ec1u t\u00e0i li\u1ec7u luy\u1ec7n ph\u1ecfng v\u1ea5n v\u00e0 ngu\u1ed3n h\u1ecdc thu\u1eadt v\u1ec1 c\u1ea5u tr\u00fac d\u1eef li\u1ec7u \u2013 thu\u1eadt to\u00e1n, nh\u01b0ng <em>Cracking the Coding Interview<\/em> v\u1eabn gi\u1eef v\u1ecb tr\u00ed n\u1ed5i b\u1eadt v\u00ec m\u1ed9t s\u1ed1 l\u00fd do sau:<\/p>\n\n\n\n<h4 class=\"wp-block-heading\">Ph\u00f9 h\u1ee3p v\u1edbi y\u00eau c\u1ea7u th\u1ef1c t\u1ebf c\u1ee7a ph\u1ecfng v\u1ea5n<\/h4>\n\n\n\n<p>Kh\u00e1c v\u1edbi c\u00e1c s\u00e1ch h\u1ecdc thu\u1eadt ch\u1ec9 t\u1eadp trung v\u00e0o l\u00fd thuy\u1ebft kh\u00f4 khan, cu\u1ed1n s\u00e1ch n\u00e0y t\u1ed5ng h\u1ee3p nh\u1eefng c\u00e2u h\u1ecfi \u0111\u00e3 xu\u1ea5t hi\u1ec7n tr\u1ef1c ti\u1ebfp trong c\u00e1c v\u00f2ng ph\u1ecfng v\u1ea5n c\u1ee7a c\u00e1c c\u00f4ng ty c\u00f4ng ngh\u1ec7 l\u1edbn. \u0110i\u1ec1u n\u00e0y gi\u00fap ng\u01b0\u1eddi \u0111\u1ecdc l\u00e0m quen v\u1edbi \u201cki\u1ec3u c\u00e2u h\u1ecfi th\u1ef1c t\u1ebf\u201d h\u01a1n l\u00e0 ch\u1ec9 h\u1ecdc l\u00fd thuy\u1ebft t\u1ed5ng qu\u00e1t. <\/p>\n\n\n\n<h4 class=\"wp-block-heading\">R\u00e8n luy\u1ec7n chi\u1ebfn l\u01b0\u1ee3c gi\u1ea3i quy\u1ebft v\u1ea5n \u0111\u1ec1<\/h4>\n\n\n\n<p>Kh\u00f4ng ch\u1ec9 cung c\u1ea5p \u0111\u00e1p \u00e1n, s\u00e1ch c\u00f2n h\u01b0\u1edbng d\u1eabn c\u00e1ch ti\u1ebfp c\u1eadn t\u1eebng lo\u1ea1i b\u00e0i to\u00e1n, c\u00e1ch ph\u00e2n t\u00edch y\u00eau c\u1ea7u v\u00e0 t\u1ed1i \u01b0u h\u00f3a gi\u1ea3i ph\u00e1p \u2013 k\u1ef9 n\u0103ng c\u1ef1c k\u1ef3 c\u1ea7n thi\u1ebft trong c\u00e1c bu\u1ed5i ph\u1ecfng v\u1ea5n k\u1ef9 thu\u1eadt. <\/p>\n\n\n\n<h4 class=\"wp-block-heading\">T\u0103ng c\u01b0\u1eddng t\u1ef1 tin tr\u01b0\u1edbc ph\u1ecfng v\u1ea5n<\/h4>\n\n\n\n<p>Vi\u1ec7c \u0111\u1ecdc v\u00e0 th\u1ef1c h\u00e0nh c\u00e1c c\u00e2u h\u1ecfi trong s\u00e1ch gi\u00fap \u1ee9ng vi\u00ean quen d\u1ea7n v\u1edbi \u00e1p l\u1ef1c th\u1eddi gian v\u00e0 c\u00e1ch di\u1ec5n \u0111\u1ea1t t\u01b0 duy khi gi\u1ea3i quy\u1ebft b\u00e0i to\u00e1n. \u0110i\u1ec1u n\u00e0y mang l\u1ea1i s\u1ef1 t\u1ef1 tin v\u00e0 phong th\u00e1i chuy\u00ean nghi\u1ec7p h\u01a1n trong bu\u1ed5i ph\u1ecfng v\u1ea5n th\u1ef1c t\u1ebf.<\/p>\n\n\n\n<h4 class=\"wp-block-heading\">T\u00e0i li\u1ec7u chu\u1ea9n tham kh\u1ea3o cho c\u00e1c ch\u1ee7 \u0111\u1ec1 c\u01a1 b\u1ea3n<\/h4>\n\n\n\n<p>Ngay c\u1ea3 khi b\u1ea1n kh\u00f4ng chu\u1ea9n b\u1ecb cho ph\u1ecfng v\u1ea5n, s\u00e1ch v\u1eabn l\u00e0 m\u1ed9t ngu\u1ed3n t\u00e0i li\u1ec7u qu\u00fd \u0111\u1ec3 \u00f4n luy\u1ec7n l\u1ea1i c\u00e1c ki\u1ebfn th\u1ee9c n\u1ec1n t\u1ea3ng v\u1ec1 thu\u1eadt to\u00e1n v\u00e0 c\u1ea5u tr\u00fac d\u1eef li\u1ec7u \u2013 nh\u1eefng n\u1ed9i dung then ch\u1ed1t m\u1ed7i l\u1eadp tr\u00ecnh vi\u00ean c\u1ea7n n\u1eafm v\u1eefng.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">4. Cu\u1ed1n s\u00e1ch n\u00e0y d\u00e0nh cho ai?<\/h2>\n\n\n\n<p><em>Cracking the Coding Interview<\/em> kh\u00f4ng ph\u1ea3i l\u00e0 cu\u1ed1n s\u00e1ch d\u00e0nh cho m\u1ecdi \u0111\u1ed1i t\u01b0\u1ee3ng. \u0110\u1ec3 t\u1eadn d\u1ee5ng t\u1ed1i \u0111a gi\u00e1 tr\u1ecb c\u1ee7a n\u00f3, b\u1ea1n n\u00ean thu\u1ed9c m\u1ed9t trong c\u00e1c nh\u00f3m sau:<\/p>\n\n\n\n<h4 class=\"wp-block-heading\">Ng\u01b0\u1eddi \u0111ang chu\u1ea9n b\u1ecb ph\u1ecfng v\u1ea5n k\u1ef9 thu\u1eadt<\/h4>\n\n\n\n<p>\u0110\u00e2y l\u00e0 \u0111\u1ed1i t\u01b0\u1ee3ng ch\u00ednh m\u00e0 cu\u1ed1n s\u00e1ch h\u01b0\u1edbng \u0111\u1ebfn: nh\u1eefng ng\u01b0\u1eddi c\u00f3 k\u1ebf ho\u1ea1ch \u1ee9ng tuy\u1ec3n v\u00e0o c\u00e1c v\u1ecb tr\u00ed l\u1eadp tr\u00ecnh, k\u1ef9 s\u01b0 ph\u1ea7n m\u1ec1m ho\u1eb7c k\u1ef9 thu\u1eadt t\u1ea1i c\u00e1c c\u00f4ng ty c\u00f4ng ngh\u1ec7, \u0111\u1eb7c bi\u1ec7t l\u00e0 nh\u1eefng t\u1eadp \u0111o\u00e0n l\u1edbn. <\/p>\n\n\n\n<h4 class=\"wp-block-heading\">Sinh vi\u00ean v\u00e0 ng\u01b0\u1eddi m\u1edbi ra tr\u01b0\u1eddng<\/h4>\n\n\n\n<p>V\u1edbi sinh vi\u00ean n\u0103m cu\u1ed1i ho\u1eb7c nh\u1eefng ng\u01b0\u1eddi m\u1edbi t\u1ed1t nghi\u1ec7p ng\u00e0nh CNTT, t\u00e0i li\u1ec7u n\u00e0y gi\u00fap h\u1ec7 th\u1ed1ng h\u00f3a ki\u1ebfn th\u1ee9c v\u1ec1 c\u1ea5u tr\u00fac d\u1eef li\u1ec7u v\u00e0 thu\u1eadt to\u00e1n, t\u1eeb \u0111\u00f3 c\u00f3 n\u1ec1n t\u1ea3ng v\u1eefng ch\u1eafc khi b\u01b0\u1edbc v\u00e0o th\u1ecb tr\u01b0\u1eddng tuy\u1ec3n d\u1ee5ng.<\/p>\n\n\n\n<h4 class=\"wp-block-heading\">L\u1eadp tr\u00ecnh vi\u00ean mu\u1ed1n c\u1ee7ng c\u1ed1 k\u1ef9 n\u0103ng t\u01b0 duy thu\u1eadt to\u00e1n<\/h4>\n\n\n\n<p>C\u1ea3 nh\u1eefng l\u1eadp tr\u00ecnh vi\u00ean \u0111\u00e3 \u0111i l\u00e0m nh\u01b0ng mu\u1ed1n \u00f4n luy\u1ec7n l\u1ea1i ki\u1ebfn th\u1ee9c thu\u1eadt to\u00e1n v\u00e0 c\u00e1ch gi\u1ea3i quy\u1ebft v\u1ea5n \u0111\u1ec1 \u0111\u1ec3 th\u0103ng ti\u1ebfn ho\u1eb7c chuy\u1ec3n h\u01b0\u1edbng s\u1ef1 nghi\u1ec7p \u0111\u1ec1u c\u00f3 th\u1ec3 h\u01b0\u1edfng l\u1ee3i t\u1eeb cu\u1ed1n s\u00e1ch n\u00e0y. <\/p>\n\n\n\n<h4 class=\"wp-block-heading\">Nh\u1eefng ng\u01b0\u1eddi chu\u1ea9n b\u1ecb cho v\u00f2ng tuy\u1ec3n d\u1ee5ng Big Tech<\/h4>\n\n\n\n<p>N\u1ebfu b\u1ea1n \u0111ang h\u01b0\u1edbng \u0111\u1ebfn c\u00e1c v\u1ecb tr\u00ed t\u1ea1i Google, Amazon, Facebook, Microsoft, Apple ho\u1eb7c c\u00e1c c\u00f4ng ty t\u01b0\u01a1ng \u0111\u01b0\u01a1ng, cu\u1ed1n s\u00e1ch n\u00e0y gi\u00fap b\u1ea1n n\u1eafm b\u1eaft c\u00e1c d\u1ea1ng c\u00e2u h\u1ecfi ph\u1ed5 bi\u1ebfn v\u00e0 luy\u1ec7n t\u1eadp t\u01b0 duy \u0111\u00fang v\u1edbi c\u00e1ch \u0111\u00e1nh gi\u00e1 c\u1ee7a nh\u00e0 tuy\u1ec3n d\u1ee5ng.<\/p>\n\n\n\n<p>Tuy v\u1eady, n\u1ebfu b\u1ea1n ho\u00e0n to\u00e0n m\u1edbi v\u1edbi l\u1eadp tr\u00ecnh, ch\u01b0a n\u1eafm v\u1eefng ki\u1ebfn th\u1ee9c c\u1ea5u tr\u00fac d\u1eef li\u1ec7u v\u00e0 thu\u1eadt to\u00e1n c\u01a1 b\u1ea3n, b\u1ea1n n\u00ean h\u1ecdc qua c\u00e1c t\u00e0i li\u1ec7u n\u1ec1n tr\u01b0\u1edbc khi b\u1eaft \u0111\u1ea7u v\u1edbi s\u00e1ch n\u00e0y. Cu\u1ed1n s\u00e1ch ph\u00f9 h\u1ee3p h\u01a1n v\u1edbi ng\u01b0\u1eddi \u0111\u00e3 c\u00f3 ki\u1ebfn th\u1ee9c n\u1ec1n t\u1ea3ng v\u00e0 \u0111ang mu\u1ed1n luy\u1ec7n t\u1eadp th\u1ef1c chi\u1ebfn.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">5. K\u1ebft lu\u1eadn<\/h2>\n\n\n\n<p><em>Cracking the Coding Interview<\/em> l\u00e0 m\u1ed9t trong nh\u1eefng t\u00e0i li\u1ec7u luy\u1ec7n ph\u1ecfng v\u1ea5n k\u1ef9 thu\u1eadt quan tr\u1ecdng nh\u1ea5t hi\u1ec7n nay d\u00e0nh cho l\u1eadp tr\u00ecnh vi\u00ean v\u00e0 \u1ee9ng vi\u00ean ng\u00e0nh c\u00f4ng ngh\u1ec7. V\u1edbi n\u1ed9i dung s\u00e2u r\u1ed9ng, c\u1ea5u tr\u00fac r\u00f5 r\u00e0ng v\u00e0 chi\u1ebfn l\u01b0\u1ee3c gi\u1ea3i quy\u1ebft v\u1ea5n \u0111\u1ec1 th\u1ef1c t\u1ebf, cu\u1ed1n s\u00e1ch kh\u00f4ng ch\u1ec9 gi\u00fap ng\u01b0\u1eddi \u0111\u1ecdc chu\u1ea9n b\u1ecb t\u1ed1t h\u01a1n cho c\u00e1c v\u00f2ng ph\u1ecfng v\u1ea5n m\u00e0 c\u00f2n c\u1ee7ng c\u1ed1 ki\u1ebfn th\u1ee9c n\u1ec1n t\u1ea3ng v\u1ec1 thu\u1eadt to\u00e1n v\u00e0 t\u01b0 duy l\u1eadp tr\u00ecnh. <\/p>\n\n\n\n<p>Tuy c\u00f3 nh\u1eefng \u00fd ki\u1ebfn cho r\u1eb1ng n\u1ed9i dung c\u1ee7a s\u00e1ch ph\u1ea7n n\u00e0o \u0111\u00e3 tr\u1edf n\u00ean l\u1ea1c h\u1eadu so v\u1edbi y\u00eau c\u1ea7u hi\u1ec7n \u0111\u1ea1i trong m\u1ed9t s\u1ed1 cu\u1ed9c ph\u1ecfng v\u1ea5n v\u00e0 r\u1eb1ng nhi\u1ec1u ngu\u1ed3n tr\u1ef1c tuy\u1ebfn m\u1edbi hi\u1ec7n nay cung c\u1ea5p n\u1ed9i dung phong ph\u00fa h\u01a1n, <em>Cracking the Coding Interview<\/em> v\u1eabn gi\u1eef gi\u00e1 tr\u1ecb tham kh\u1ea3o cao \u2013 \u0111\u1eb7c bi\u1ec7t khi k\u1ebft h\u1ee3p v\u1edbi th\u1ef1c h\u00e0nh tr\u00ean c\u00e1c n\u1ec1n t\u1ea3ng tr\u1ef1c tuy\u1ebfn nh\u01b0 LeetCode hay NeetCode. Cu\u1ed1i c\u00f9ng, gi\u00e1 tr\u1ecb c\u1ee7a b\u1ea5t k\u1ef3 t\u00e0i li\u1ec7u n\u00e0o c\u0169ng ph\u1ee5 thu\u1ed9c v\u00e0o c\u00e1ch b\u1ea1n th\u1ef1c h\u00e0nh v\u00e0 \u00e1p d\u1ee5ng ki\u1ebfn th\u1ee9c v\u00e0o th\u1ef1c t\u1ebf.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">6. T\u1ea3i xu\u1ed1ng, tr\u1ea3i nghi\u1ec7m<\/h2>\n\n\n\n<p>B\u1ea1n c\u00f3 th\u1ec3 d\u1ec5 d\u00e0ng t\u1ea3i xu\u1ed1ng ho\u1eb7c \u0111\u1ecdc tr\u1ef1c tuy\u1ebfn cu\u1ed1n s\u00e1ch n\u00e0y tr\u00ean nhi\u1ec1u n\u1ec1n t\u1ea3ng kh\u00e1c nhau nh\u01b0 SlideShare, Scribd, Issuu hay Studylid. M\u1ed7i n\u1ec1n t\u1ea3ng \u0111\u1ec1u h\u1ed7 tr\u1ee3 \u0111\u1ecdc tr\u1ef1c ti\u1ebfp, l\u01b0u l\u1ea1i \u0111\u1ec3 xem sau v\u00e0 t\u1ea3i v\u1ec1 khi c\u1ea7n, r\u1ea5t ti\u1ec7n cho c\u1ea3&nbsp;<a href=\"https:\/\/kienthucmo.com\/vi\/practical-statistics-for-data-scientists-50-essential-concepts-using-r-and-python\/#\">&nbsp;m\u00e1y t\u00ednh<\/a>&nbsp;l\u1eabn \u0111i\u1ec7n tho\u1ea1i. H\u00e3y ch\u1ecdn n\u01a1i ph\u00f9 h\u1ee3p nh\u1ea5t v\u1edbi th\u00f3i quen s\u1eed d\u1ee5ng c\u1ee7a b\u1ea1n \u0111\u1ec3 tr\u1ea3i nghi\u1ec7m tr\u1ecdn v\u1eb9n n\u1ed9i dung cu\u1ed1n s\u00e1ch.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Studylid:<a href=\"https:\/\/www.scribd.com\/document\/905917839\/Introduction-to-Python-Programming\" target=\"_blank\" rel=\"noreferrer noopener\">\u00a0<\/a><\/strong><a href=\"https:\/\/studylib.net\/doc\/27956323\" target=\"_blank\" rel=\"noreferrer noopener\">https:\/\/studylib.net\/doc\/27956323<\/a><\/li>\n\n\n\n<li>Slideshare (Part 1):\u00a0<a href=\"https:\/\/www.slideshare.net\/slideshow\/practical-statistics-for-data-scientists-50-essential-concepts-using-r-and-python-part-1\/284083302\" target=\"_blank\" rel=\"noreferrer noopener\">https:\/\/www.slideshare.net\/slideshow\/practical-statistics-for-data-scientists-50-essential-concepts-using-r-and-python-part-1\/284083302<\/a><\/li>\n\n\n\n<li>Slideshare (Part 2):\u00a0<a href=\"https:\/\/www.slideshare.net\/slideshow\/practical-statistics-for-data-scientists-50-essential-concepts-using-r-and-python-part-2\/284083341\" target=\"_blank\" rel=\"noreferrer noopener\">https:\/\/www.slideshare.net\/slideshow\/practical-statistics-for-data-scientists-50-essential-concepts-using-r-and-python-part-2\/284083341<\/a><\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">7. T\u00e0i li\u1ec7u tham kh\u1ea3o<\/h2>\n\n\n\n<p>[1] G. L. McDowell, <em>Cracking the Coding Interview: 189 Programming Questions and Solutions<\/em>, 6th ed. Palo Alto, CA, USA: CareerCup, 2015.<br>[2] G. L. McDowell, \u201cCareerCup \u2013 Technical Interview Preparation,\u201d CareerCup, Inc. [Online]. Available: <a href=\"https:\/\/www.careercup.com\" target=\"_blank\" rel=\"noopener\">https:\/\/www.careercup.com<\/a>. [Accessed: Dec. 27, 2025].<br>[3] \u201cCracking the Coding Interview \u2013 C\u00f3 th\u1ef1c s\u1ef1 \u0111\u00e1ng \u0111\u1ecdc?,\u201d Got It Vietnam. [Online]. Available: <a href=\"https:\/\/vn.got-it.ai\/blog\/cracking-the-coding-interview-co-thuc-su-dang-doc?utm_source=chatgpt.com\" target=\"_blank\" rel=\"noopener\">https:\/\/vn.got-it.ai\/blog\/cracking-the-coding-interview-co-thuc-su-dang-doc<\/a>. [Accessed: Dec. 27, 2025].<br>[4] J. Bentley, <em>Programming Pearls<\/em>, 2nd ed. Reading, MA, USA: Addison-Wesley, 2000.<br>[5] T. H. Cormen, C. E. Leiserson, R. L. Rivest, and C. Stein, <em>Introduction to Algorithms<\/em>, 3rd ed. Cambridge, MA, USA: MIT Press, 2009.<br>[6] S. Skiena, <em>The Algorithm Design Manual<\/em>, 2nd ed. London, UK: Springer, 2008.<br>[7] \u201cTechnical Interviewing at Big Tech Companies,\u201d Reddit, r\/leetcode. [Online]. Available: <a href=\"https:\/\/www.reddit.com\/r\/leetcode\" target=\"_blank\" rel=\"noopener\">https:\/\/www.reddit.com\/r\/leetcode<\/a>. [Accessed: Dec. 27, 2025].<\/p>\n\n\n\n<p><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Cracking the Coding Interview l\u00e0 m\u1ed9t trong nh\u1eefng t\u00e0i li\u1ec7u luy\u1ec7n ph\u1ecfng v\u1ea5n k\u1ef9 thu\u1eadt quan tr\u1ecdng nh\u1ea5t hi\u1ec7n nay d\u00e0nh cho l\u1eadp tr\u00ecnh vi\u00ean v\u00e0 \u1ee9ng vi\u00ean ng\u00e0nh c\u00f4ng ngh\u1ec7. V\u1edbi n\u1ed9i dung s\u00e2u r\u1ed9ng, c\u1ea5u tr\u00fac r\u00f5 r\u00e0ng v\u00e0 chi\u1ebfn l\u01b0\u1ee3c gi\u1ea3i quy\u1ebft v\u1ea5n \u0111\u1ec1 th\u1ef1c t\u1ebf, cu\u1ed1n s\u00e1ch kh\u00f4ng ch\u1ec9 gi\u00fap ng\u01b0\u1eddi \u0111\u1ecdc chu\u1ea9n b\u1ecb t\u1ed1t h\u01a1n cho c\u00e1c v\u00f2ng ph\u1ecfng v\u1ea5n m\u00e0 c\u00f2n c\u1ee7ng c\u1ed1 ki\u1ebfn th\u1ee9c n\u1ec1n t\u1ea3ng v\u1ec1 thu\u1eadt to\u00e1n v\u00e0 t\u01b0 duy l\u1eadp tr\u00ecnh.<\/p>\n","protected":false},"author":1,"featured_media":2782,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"googlesitekit_rrm_CAowieHDDA:productID":"","footnotes":""},"categories":[5],"tags":[],"class_list":["post-2781","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-tai-lieu"],"_links":{"self":[{"href":"https:\/\/kienthucmo.com\/vi\/wp-json\/wp\/v2\/posts\/2781","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/kienthucmo.com\/vi\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/kienthucmo.com\/vi\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/kienthucmo.com\/vi\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/kienthucmo.com\/vi\/wp-json\/wp\/v2\/comments?post=2781"}],"version-history":[{"count":8,"href":"https:\/\/kienthucmo.com\/vi\/wp-json\/wp\/v2\/posts\/2781\/revisions"}],"predecessor-version":[{"id":3179,"href":"https:\/\/kienthucmo.com\/vi\/wp-json\/wp\/v2\/posts\/2781\/revisions\/3179"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/kienthucmo.com\/vi\/wp-json\/wp\/v2\/media\/2782"}],"wp:attachment":[{"href":"https:\/\/kienthucmo.com\/vi\/wp-json\/wp\/v2\/media?parent=2781"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/kienthucmo.com\/vi\/wp-json\/wp\/v2\/categories?post=2781"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/kienthucmo.com\/vi\/wp-json\/wp\/v2\/tags?post=2781"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}