V\u00ec v\u1eady, trong b\u00e0i n\u00e0y m\u00ecnh s\u1ebd chia s\u1ebd v\u1ec1 4 ph\u01b0\u01a1ng ph\u00e1p r\u00e8n luy\u1ec7n t\u01b0 duy l\u1eadp tr\u00ecnh m\u00e0 m\u00ecnh th\u1ea5y hi\u1ec7u qu\u1ea3 nh\u00e9!<\/p>\n\n\n\n
1. H\u1ecdc k\u0129 v\u00e0 n\u1eafm v\u1eefng c\u0103n b\u1ea3n tr\u01b0\u1edbc<\/strong><\/h5>\n\n\n\nKhi m\u1edbi h\u1ecdc code, nh\u1eefng ki\u1ebfn th\u1ee9c c\u0103n b\u1ea3n nh\u01b0: h\u00e0m, bi\u1ebfn, m\u1ea3ng, v\u00f2ng l\u1eb7p<\/em> l\u00e0 nh\u1eefng th\u1ee9 n\u1ec1n t\u1ea3ng c\u1ee7a t\u01b0 duy l\u1eadp tr\u00ecnh. B\u1ea1n ph\u1ea3i hi\u1ec3u c\u00e1ch bi\u1ebfn, m\u1ea3ng l\u01b0u gi\u1eef gi\u00e1 tr\u1ecb, c\u00e1ch t\u00e1ch h\u00e0m ra sao th\u00ec m\u1edbi ra c\u00f3 th\u1ec3 \u00e1p d\u1ee5ng ch\u00fang v\u00e0o gi\u1ea3i quy\u1ebft v\u1ea5n \u0111\u1ec1.<\/p>\n\n\n\nH\u1ecdc s\u00e2u h\u01a1n, sau m\u1ed9t th\u1eddi gian, b\u1ea1n s\u1ebd bi\u1ebft c\u00f3 nh\u1eefng thu\u1eadt to\u00e1n, c\u1ea5u tr\u00fac d\u1eef li\u1ec7u kh\u00e1c ngo\u00e0i m\u1ea3ng. M\u1ed7i c\u1ea5u tr\u00fac d\u1eef li\u1ec7u s\u1ebd c\u00f3 \u01b0u \u0111i\u1ec3m nh\u01b0\u1ee3c \u0111i\u1ec3m ri\u00eang, nh\u01b0ng b\u1ea1n ph\u1ea3i hi\u1ec3u r\u00f5 ch\u00fang th\u00ec m\u1edbi bi\u1ebft c\u00e1ch t\u01b0 duy, \u00e1p d\u1ee5ng<\/strong> v\u00e0o b\u00e0i to\u00e1n.<\/p>\n\n\n\nGi\u1ea3 s\u1eed, b\u00e0i to\u00e1n y\u00eau c\u1ea7u l\u01b0u tr\u1eef danh s\u00e1ch 1 tri\u1ec7u sinh vi\u00ean, tra c\u1ee9u sinh vi\u00ean theo m\u00e3 s\u1ed1 sao cho nhanh nh\u1ea5t:<\/p>\n\n\n\n
- N\u1ebfu ch\u1ec9 bi\u1ebft v\u1ec1 m\u1ea3ng, b\u1ea1n s\u1ebd l\u01b0u to\u00e0n b\u1ed9 1 tri\u1ec7u sv n\u00e0y v\u00e0o 1 m\u1ea3ng, sau \u0111\u00f3 loop \u0111\u1ec3 t\u00ecm t\u1eebng sinh vi\u00ean.<\/li>
- N\u1ebfu n\u1eafm v\u1eefng v\u1ec1 c\u1ea5u tr\u00fac d\u1eef li\u1ec7u, b\u1ea1n s\u1ebd bi\u1ebft c\u1ea5u tr\u00fac\u00a0HashMap\/Hashtable<\/em>\u00a0r\u1ea5t ph\u00f9 h\u1ee3p \u0111\u1ec3 l\u01b0u tr\u1eef, l\u1ea5y d\u1eef li\u1ec7u theo d\u1ea1ng key-value, tra c\u1ee9u r\u1ea5t nhanh v\u1edbi\u00a0\u0111\u1ed9 ph\u1ee9c t\u1ea1p O(1)<\/strong><\/li><\/ul>\n\n\n\n
![\"\"](\"https:\/\/lop12.edu.vn\/wp-content\/uploads\/2019\/05\/p1.png\")
<\/figure><\/div>\n\n\n\nV\u1ec1 sau, khi h\u1ecdc nh\u1eefng th\u1ee9 kh\u00f3 h\u01a1n,\u00a0cao si\u00eau h\u01a1n nh\u01b0 th\u01b0 vi\u1ec7n\/framework\u00a0c\u0169ng v\u1eady; ch\u1ec9 c\u1ea7n b\u1ea1n n\u1eafm v\u1eefng c\u0103n b\u1ea3n c\u1ee7a ch\u00fang th\u00ec s\u1ebd d\u1ec5 h\u1ecdc, d\u1ec5 \u00e1p d\u1ee5ng h\u01a1n nhi\u1ec1u.<\/p>\n\n\n\n
2. L\u00e0m b\u00e0i t\u1eadp v\u1ec1 thu\u1eadt to\u00e1n<\/strong><\/h5>\n\n\n\n\u0110\u1ec3 c\u00f3 t\u01b0 duy t\u1ed1t, ph\u1ea3i n\u1eafm v\u1eefng c\u01a1 b\u1ea3n. Nh\u01b0ng l\u00e0m sao \u0111\u1ec3 n\u1eafm v\u1eefng ch\u00fang b\u00e2y gi\u1edd??<\/p>\n\n\n\n
B\u1eadt m\u00ed nh\u1ecf n\u00e8, d\u00f9 b\u1ea1n c\u00f3 h\u1ecdc k\u0129 l\u00fd thuy\u1ebft t\u1edbi m\u1ea5y, ch\u00fang c\u0169ng ch\u1ec9 l\u00e0 \u2026 l\u00fd thuy\u1ebft<\/strong> th\u00f4i! \u0110\u1ec3 n\u1eafm v\u1eefng ki\u1ebfn th\u1ee9c l\u1eadp tr\u00ecnh, thu\u1eadt to\u00e1n, b\u1ea1n ph\u1ea3i ch\u1ecbu kh\u00f3 .. l\u00e0m b\u00e0i t\u1eadp<\/strong> \u0111\u1ec3 \u00e1p d\u1ee5ng ch\u00fang.<\/p>\n\n\n\nV\u00ed d\u1ee5 nh\u01b0 m\u1ed9t b\u00e0i to\u00e1n m\u00e0 Google hay h\u1ecfi: L\u00e0m sao \u0111\u1ec3 c\u00e2n b\u1eb1ng m\u1ed9t c\u00e2y nh\u1ecb ph\u00e2n (binary tree). B\u00e0i to\u00e1n n\u00e0y s\u1ebd c\u00f3 nhi\u1ec1u c\u00e1ch gi\u1ea3i:<\/p>\n\n\n\n
- C\u00f3 c\u00e1ch gi\u1ea3i\u00a0\u0111\u01a1n gi\u1ea3n nh\u01b0ng kh\u00f4ng optimize<\/li>
- C\u00f3 c\u00e1ch gi\u1ea3i g\u1ecdn nh\u01b0ng kh\u00f3 hi\u1ec3u<\/li>
- C\u00f3 c\u00e1ch \u0111\u1ed9 ph\u1ee9c t\u1ea1p cao nh\u01b0ng kh\u00f4ng c\u1ea7n memory<\/li>
- C\u00f3 c\u00e1ch ch\u1ea1y nhanh nh\u01b0ng t\u1ed1n memory<\/li><\/ul>\n\n\n\n
Khi gi\u1ea3i nh\u1eefng b\u00e0i t\u1eadp n\u00e0y, b\u1ea1n s\u1ebd h\u1ecdc \u0111\u01b0\u1ee3c c\u00e1ch \u00e1p d\u1ee5ng nh\u1eefng c\u1ea5u tr\u00fac d\u1eef li\u1ec7u v\u00e0o th\u1ef1c t\u1ebf, c\u00e1ch vi\u1ebft code cho ch\u00fang ch\u1ea1y ra sao.<\/p>\n\n\n\n
Ngu\u1ed3n h\u1ecdc th\u00ec tr\u00ean m\u1ea1ng c\u00f3 c\u0169ng nhi\u1ec1u, m\u00ecnh ch\u1ec9 gi\u1edbi thi\u1ec7u m\u1ed9t s\u1ed1 s\u00e1ch\/web hay n\u00ean h\u1ecdc:<\/p>\n\n\n\n
- S\u00e1ch\u00a0Cracking the Coding Interview<\/li>
- S\u00e1ch\u00a0Algorithm 4th Edition<\/strong><\/li>
- C\u00e1c trang\u00a0thi th\u1ed1, gi\u1ea3i b\u00e0i t\u1eadp code: Hackerank, Code Fight\u2026<\/li><\/ul>\n\n\n\n
![\"\"](\"https:\/\/lop12.edu.vn\/wp-content\/uploads\/2019\/05\/p2.jpg\")
<\/figure><\/div>\n\n\n\n3. L\u00e0m s\u1ea3n ph\u1ea9m \u0111\u1ec3 c\u00f3 t\u01b0 duy s\u1ea3n ph\u1ea9m<\/strong><\/h5>\n\n\n\nVi\u1ec7c gi\u1ea3i b\u00e0i t\u1eadp s\u1ebd r\u00e8n cho b\u1ea1n c\u00e1ch t\u01b0 duy, c\u00e1ch gi\u1ea3i quy\u1ebft nh\u1eefng v\u1ea5n \u0111\u1ec1 nh\u1ecf. Tuy nhi\u00ean,\u00a0khi \u0111i l\u00e0m th\u1ef1c t\u1ebf, c\u00e1c d\u1ef1 \u00e1n ph\u1ea7n m\u1ec1m \u0111a ph\u1ea7n l\u00e0\u00a0nh\u1eefng v\u1ea5n \u0111\u1ec1 \u2026 to to<\/strong>, do nhi\u1ec1u v\u1ea5n \u0111\u1ec1 nh\u1ecf gh\u00e9p l\u1ea1i.<\/p>\n\n\n\nV\u00ec th\u1ebf, b\u00ean c\u1ea1nh t\u01b0 duy thu\u1eadt to\u00e1n, t\u01b0 duy s\u1ea3n ph\u1ea9m c\u0169ng r\u1ea5t quan tr\u1ecdng. N\u00f3 s\u1ebd gi\u00fap b\u1ea1n ph\u00e1t hi\u1ec7n \u0111\u01b0\u1ee3c s\u1ea3n ph\u1ea9m c\u1ea7n nh\u1eefng t\u00ednh n\u0103ng g\u00ec, khi d\u1ef1 \u00e1n b\u1ef1 l\u00ean th\u00ec code nh\u01b0 th\u1ebf n\u00e0o cho kh\u00f4ng b\u1ecb r\u1ed1i, d\u1ec5 b\u1ea3o tr\u00ec.<\/p>\n\n\n\n
Do v\u1eady, sau khi l\u00e0m to\u00e1n nhi\u1ec1u, c\u00e1c b\u1ea1n c\u00f3 th\u1ec3\u00a0l\u00e0m m\u1ed9t s\u1ed1 pet project nh\u1ecf\u00a0\u0111\u1ec3 luy\u1ec7n k\u0129 n\u0103ng s\u1ea3n ph\u1ea9m. B\u1ea1n s\u1ebd v\u00f4 c\u00f9ng ng\u1ea1c nhi\u00ean tr\u01b0\u1edbc nh\u1eefng th\u1ee9 m\u00ecnh c\u00f3 th\u1ec3 h\u1ecdc \u0111\u01b0\u1ee3c nh\u01b0:<\/p>\n\n\n\n
- C\u00e1ch ngh\u0129 requirement cho s\u1ea3n ph\u1ea9m<\/li>
- C\u00e1ch\u00a0thi\u1ebft k\u1ebf flow, UI\/UX\u00a0cho t\u1ed1t<\/li>
- C\u00e1ch t\u1ed5 ch\u1ee9c code trong m\u1ed9t project<\/li>
- Hi\u1ec3u s\u00e2u h\u01a1n v\u1ec1 ng\u00f4n ng\u1eef l\u1eadp tr\u00ecnh, v\u1ec1 nh\u1eefng c\u00f4ng ngh\u1ec7 m\u00ecnh s\u1eed d\u1ee5ng<\/li><\/ul>\n\n\n\n
N\u1ebfu b\u1ea1n \u0111\u00e3 \u0111i l\u00e0m, \u0111\u1eebng ngh\u0129 l\u00e0 m\u00ecnh \u0111\u00e3 l\u00e0m d\u1ef1 \u00e1n th\u1ef1c t\u1ebf r\u1ed3i, c\u1ea7n g\u00ec ph\u1ea3i l\u00e0m pet project nh\u00e9!<\/p>\n\n\n\n
\u0110a ph\u1ea7n c\u00e1c d\u1ef1 \u00e1n th\u1ef1c t\u1ebf \u0111\u00e3 c\u00f3 c\u1ea5u tr\u00fac s\u1eb5n, c\u00f3 qui tr\u00ecnh r\u00f5 r\u00e0ng, c\u00f3 design l\u00e0m h\u1ebft, c\u00f4ng vi\u1ec7c c\u1ee7a ch\u00fang ta ch\u1ec9 c\u00f3 implement l\u00e0 nhi\u1ec1u. T\u1ef1 l\u00e0m m\u1ed9t d\u1ef1 \u00e1n t\u1eeb \u0111\u1ea7u, b\u1ea1n s\u1ebd h\u1ecdc \u0111\u01b0\u1ee3c nhi\u1ec1u \u0111i\u1ec1u h\u01a1n<\/strong> \u0111\u1ea5y!<\/p>\n\n\n\nN\u1ebfu c\u00e1c b\u1ea1n m\u1edbi h\u1ecdc, mu\u1ed1n l\u00e0m d\u1ef1 \u00e1n nh\u01b0ng ch\u01b0a c\u00f3 \u00fd t\u01b0\u1edfng th\u00ec c\u00f3 th\u1ec3 tham kh\u1ea3o b\u00e0i\u00a0Nh\u1eefng project nh\u1ecf b\u1ea1n c\u00f3 th\u1ec3 d\u00f9ng \u0111\u1ec3 luy\u1ec7n t\u1eadp\u00a0nha.<\/p>\n\n\n\n
![\"\"](\"https:\/\/lop12.edu.vn\/wp-content\/uploads\/2019\/05\/p3.jpg\")
<\/figure><\/div>\n\n\n\n4. H\u1ecdc r\u1ed9ng h\u01a1n, h\u1ecdc nh\u1eefng th\u1ee9 m\u00ecnh ch\u01b0a bi\u1ebft<\/strong><\/h3>\n\n\n\nM\u1ed9t trong nh\u1eefng c\u00e1ch hi\u1ec7u qu\u1ea3 \u0111\u1ec3 r\u00e8n luy\u1ec7n t\u01b0 duy l\u1eadp tr\u00ecnh, \u0111\u00f3 l\u00e0 h\u1ecdc h\u1ecfi c\u00e1ch ng\u01b0\u1eddi kh\u00e1c t\u01b0 duy<\/strong>; h\u1ecdc nh\u1eefng th\u1ee9 kh\u00e1c ho\u00e0n to\u00e0n v\u1edbi nh\u1eefng th\u1ee9 m\u00ecnh hay d\u00f9ng \u0111\u1ec3 h\u1ecdc c\u00e1ch t\u01b0 duy m\u1edbi:<\/p>\n\n\n\n- Tr\u01b0\u1edbc gi\u1edd b\u1ea1n l\u00e0m vi\u1ec7c v\u1edbi nh\u1eefng ng\u00f4n ng\u1eef\u00a0static typing<\/em>nh\u01b0\u00a0Java, C#<\/em>, c\u1ea3m th\u1ea5y ph\u1ea3i khai b\u00e1o \u0111\u1ee7 th\u1ee9\u00a0method, class<\/em>r\u1ea5t m\u1ec7t m\u1ecfi? H\u00e3y th\u1eed nh\u1eefng ng\u00f4n ng\u1eef dymanic typing nh\u01b0\u00a0Python,\u00a0JavaScript sida<\/em>\u00a0\u0111\u1ec3 xem code c\u00f3 th\u1ec3 vi\u1ebft ng\u1eafn g\u1ecdn ra sao. (C\u00e1c b\u1ea1n\u00a0Python<\/em>\u00a0c\u0169ng n\u00ean th\u1eed\u00a0Java, C++\u00a0<\/em>xem).<\/li>
- Ho\u1eb7c tr\u01b0\u1edbc gi\u1edd c\u00e1c b\u1ea1n code d\u00f9ng OOP, t\u1ea1o class v\u00e0 h\u00e0m, k\u1ebf th\u1eeba v\u2026v. H\u00e3y th\u1eed d\u00f9ng\u00a0Scala, Haskell<\/em>\u00a0ho\u1eb7c\u00a0JavaScript<\/em>, code theo phong c\u00e1ch\u00a0Functional Programming<\/em>, s\u1eed d\u1ee5ng function thay v\u00ec class xem sao!<\/li>
- Kh\u00f4ng ch\u1ec9 g\u00f3i g\u1ecdn trong ng\u00f4n ng\u1eef, b\u1ea1n l\u00e0m\u00a0back-end c\u00f3 th\u1ec3 th\u1eed h\u1ecdc front-end\u00a0\u0111\u1ec3 ch\u1eedi th\u1ec1 v\u1edbi\u00a0CSS, JavaScript<\/em>; b\u1ea1n l\u00e0 front-end c\u00f3 th\u1ec3 h\u1ecdc back-end \u0111\u1ec3 nh\u1ee9c \u0111\u1ea7u v\u1edbi server configuration, v\u1edbi SQL.<\/li><\/ul>\n\n\n\n
H\u1ecdc m\u1ed9t th\u1ee9 m\u1edbi, b\u1ea1n s\u1ebd c\u00f3 c\u00e1i nh\u00ecn r\u1ed9ng h\u01a1n, t\u1ed5ng qu\u00e1t h\u01a1n v\u1ec1 ng\u00e0nh m\u00ecnh; \u0111\u1ed3ng th\u1eddi m\u1edf r\u1ed9ng \u0111\u1ea7u \u00f3c, n\u00e2ng cao kh\u1ea3 n\u0103ng t\u01b0 duy c\u1ee7a b\u1ea1n.<\/p>\n\n\n\n
N\u00f3i nh\u1ecf nh\u00e9, n\u1ebfu mu\u1ed1n l\u00e0m\u00a0full-stack developer\u00a0th\u00ec c\u0169ng ph\u1ea3i n\u1eafm \u0111\u1ee7 th\u1ee9 h\u1ebft \u1ea5y: t\u1eeb front-end, back-end, security, database, DevOps \u0111\u1ee7 c\u1ea3!<\/p>\n\n\n\n
![\"\"](\"https:\/\/lop12.edu.vn\/wp-content\/uploads\/2019\/05\/p4.jpg\")
<\/figure><\/div>\n\n\n\nK\u1ebft<\/strong><\/h3>\n\n\n\nTrong b\u00e0i n\u00e0y, m\u00ecnh \u0111\u00e3 chia s\u1ebb v\u1ec1 4 ph\u01b0\u01a1ng ph\u00e1p kh\u00e1 hi\u1ec7u qu\u1ea3 m\u00e0 m\u00ecnh hay d\u00f9ng \u0111\u1ec3 n\u00e2ng cao kh\u1ea3 n\u0103ng t\u01b0 duy l\u1eadp tr\u00ecnh.<\/p>\n\n\n\n
N\u1ebfu c\u00e1c b\u1ea1n c\u00f3 kinh nghi\u1ec7m, ph\u01b0\u01a1ng ph\u00e1p n\u00e0o m\u00e0 m\u00ecnh c\u1ea3m th\u1ea5y hi\u1ec7u qu\u1ea3 th\u00ec c\u1ee9 comment ph\u00eda d\u01b0\u1edbi nha!<\/p>\n\n\n\n
Via Toidicodedao<\/em><\/p>\n","protected":false},"excerpt":{"rendered":"K\u00ec tr\u01b0\u1edbc, m\u00ecnh \u0111\u00e3 c\u00f3 chia s\u1ebb v\u1ec1\u00a0c\u00e1i g\u1ecdi l\u00e0 c\u0103n b\u1ea3n v\u00e0 t\u01b0 duy l\u1eadp tr\u00ecnh, c\u00f9ng v\u1edbi t\u1ea7m quan tr\u1ecdng c\u1ee7a\u00a0vi\u1ec7c t\u01b0 duy trong ng\u00e0nh l\u1eadp tr\u00ecnh. M\u00ecnh c\u0169ng c\u00f3 khuy\u00ean l\u00e0 r\u00e8n luy\u1ec7n t\u01b0 duy l\u1eadp tr\u00ecnh c\u0169ng gi\u1ed1ng nh\u01b0 t\u1eadp t\u1ea1, mu\u1ed1n gi\u1ecfi th\u00ec ph\u1ea3i ch\u1ecbu kh\u00f3 r\u00e8n luy\u1ec7n th\u01b0\u1eddng xuy\u00ean. Nhi\u1ec1u […]<\/p>\n","protected":false},"author":12,"featured_media":40023,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_mi_skip_tracking":false,"tdm_status":"","tdm_grid_status":""},"categories":[1651,18],"tags":[],"yoast_head":"\n
4 Ph\u01b0\u01a1ng ph\u00e1p r\u00e8n luy\u1ec7n t\u01b0 duy l\u1eadp tr\u00ecnh<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/lop12.edu.vn\/4-phuong-phap-ren-luyen-tu-duy-lap-trinh\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"4 Ph\u01b0\u01a1ng ph\u00e1p r\u00e8n luy\u1ec7n t\u01b0 duy l\u1eadp tr\u00ecnh\" \/>\n<meta property=\"og:description\" content=\"K\u00ec tr\u01b0\u1edbc, m\u00ecnh \u0111\u00e3 c\u00f3 chia s\u1ebb v\u1ec1\u00a0c\u00e1i g\u1ecdi l\u00e0 c\u0103n b\u1ea3n v\u00e0 t\u01b0 duy l\u1eadp tr\u00ecnh, c\u00f9ng v\u1edbi t\u1ea7m quan tr\u1ecdng c\u1ee7a\u00a0vi\u1ec7c t\u01b0 duy trong ng\u00e0nh l\u1eadp tr\u00ecnh. M\u00ecnh c\u0169ng c\u00f3 khuy\u00ean l\u00e0 r\u00e8n luy\u1ec7n t\u01b0 duy l\u1eadp tr\u00ecnh c\u0169ng gi\u1ed1ng nh\u01b0 t\u1eadp t\u1ea1, mu\u1ed1n gi\u1ecfi th\u00ec ph\u1ea3i ch\u1ecbu kh\u00f3 r\u00e8n luy\u1ec7n th\u01b0\u1eddng xuy\u00ean. Nhi\u1ec1u […]\" \/>\n<meta property=\"og:url\" content=\"https:\/\/lop12.edu.vn\/4-phuong-phap-ren-luyen-tu-duy-lap-trinh\/\" \/>\n<meta property=\"og:site_name\" content=\"Lop12.edu.vn - C\u1ed9ng \u0111\u1ed3ng h\u1ecdc sinh l\u1edbp 12 l\u1edbn nh\u1ea5t t\u1ea1i Vi\u1ec7t Nam\" \/>\n<meta property=\"article:published_time\" content=\"2019-05-23T03:57:43+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2019-11-21T04:58:20+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/lop12.edu.vn\/wp-content\/uploads\/2019\/05\/p1.png\" \/>\n\t<meta property=\"og:image:width\" content=\"369\" \/>\n\t<meta property=\"og:image:height\" content=\"254\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/png\" \/>\n<meta name=\"author\" content=\"Nguy\u1ec5n M\u01a1\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"Nguy\u1ec5n M\u01a1\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"8 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\/\/lop12.edu.vn\/4-phuong-phap-ren-luyen-tu-duy-lap-trinh\/\",\"url\":\"https:\/\/lop12.edu.vn\/4-phuong-phap-ren-luyen-tu-duy-lap-trinh\/\",\"name\":\"4 Ph\u01b0\u01a1ng ph\u00e1p r\u00e8n luy\u1ec7n t\u01b0 duy l\u1eadp tr\u00ecnh\",\"isPartOf\":{\"@id\":\"https:\/\/lop12.edu.vn\/#website\"},\"datePublished\":\"2019-05-23T03:57:43+00:00\",\"dateModified\":\"2019-11-21T04:58:20+00:00\",\"author\":{\"@id\":\"https:\/\/lop12.edu.vn\/#\/schema\/person\/104e47bfb6189ee6fa1aa67e1f9107a2\"},\"breadcrumb\":{\"@id\":\"https:\/\/lop12.edu.vn\/4-phuong-phap-ren-luyen-tu-duy-lap-trinh\/#breadcrumb\"},\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/lop12.edu.vn\/4-phuong-phap-ren-luyen-tu-duy-lap-trinh\/\"]}]},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/lop12.edu.vn\/4-phuong-phap-ren-luyen-tu-duy-lap-trinh\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\/\/lop12.edu.vn\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"4 Ph\u01b0\u01a1ng ph\u00e1p r\u00e8n luy\u1ec7n t\u01b0 duy l\u1eadp tr\u00ecnh\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\/\/lop12.edu.vn\/#website\",\"url\":\"https:\/\/lop12.edu.vn\/\",\"name\":\"Lop12.edu.vn - C\u1ed9ng \u0111\u1ed3ng h\u1ecdc sinh l\u1edbp 12\",\"description\":\"\",\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\/\/lop12.edu.vn\/?s={search_term_string}\"},\"query-input\":\"required name=search_term_string\"}],\"inLanguage\":\"en-US\"},{\"@type\":\"Person\",\"@id\":\"https:\/\/lop12.edu.vn\/#\/schema\/person\/104e47bfb6189ee6fa1aa67e1f9107a2\",\"name\":\"Nguy\u1ec5n M\u01a1\",\"image\":{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\/\/lop12.edu.vn\/#\/schema\/person\/image\/\",\"url\":\"https:\/\/secure.gravatar.com\/avatar\/20d6905502209505aa7a21b55419ebe9?s=96&d=mm&r=g\",\"contentUrl\":\"https:\/\/secure.gravatar.com\/avatar\/20d6905502209505aa7a21b55419ebe9?s=96&d=mm&r=g\",\"caption\":\"Nguy\u1ec5n M\u01a1\"},\"url\":\"https:\/\/lop12.edu.vn\/author\/mont\/\"}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"4 Ph\u01b0\u01a1ng ph\u00e1p r\u00e8n luy\u1ec7n t\u01b0 duy l\u1eadp tr\u00ecnh","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/lop12.edu.vn\/4-phuong-phap-ren-luyen-tu-duy-lap-trinh\/","og_locale":"en_US","og_type":"article","og_title":"4 Ph\u01b0\u01a1ng ph\u00e1p r\u00e8n luy\u1ec7n t\u01b0 duy l\u1eadp tr\u00ecnh","og_description":"K\u00ec tr\u01b0\u1edbc, m\u00ecnh \u0111\u00e3 c\u00f3 chia s\u1ebb v\u1ec1\u00a0c\u00e1i g\u1ecdi l\u00e0 c\u0103n b\u1ea3n v\u00e0 t\u01b0 duy l\u1eadp tr\u00ecnh, c\u00f9ng v\u1edbi t\u1ea7m quan tr\u1ecdng c\u1ee7a\u00a0vi\u1ec7c t\u01b0 duy trong ng\u00e0nh l\u1eadp tr\u00ecnh. 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H\u1ecdc s\u00e2u h\u01a1n, sau m\u1ed9t th\u1eddi gian, b\u1ea1n s\u1ebd bi\u1ebft c\u00f3 nh\u1eefng thu\u1eadt to\u00e1n, c\u1ea5u tr\u00fac d\u1eef li\u1ec7u kh\u00e1c ngo\u00e0i m\u1ea3ng. M\u1ed7i c\u1ea5u tr\u00fac d\u1eef li\u1ec7u s\u1ebd c\u00f3 \u01b0u \u0111i\u1ec3m nh\u01b0\u1ee3c \u0111i\u1ec3m ri\u00eang, nh\u01b0ng b\u1ea1n ph\u1ea3i hi\u1ec3u r\u00f5 ch\u00fang th\u00ec m\u1edbi bi\u1ebft c\u00e1ch t\u01b0 duy, \u00e1p d\u1ee5ng<\/strong> v\u00e0o b\u00e0i to\u00e1n.<\/p>\n\n\n\n Gi\u1ea3 s\u1eed, b\u00e0i to\u00e1n y\u00eau c\u1ea7u l\u01b0u tr\u1eef danh s\u00e1ch 1 tri\u1ec7u sinh vi\u00ean, tra c\u1ee9u sinh vi\u00ean theo m\u00e3 s\u1ed1 sao cho nhanh nh\u1ea5t:<\/p>\n\n\n\n V\u1ec1 sau, khi h\u1ecdc nh\u1eefng th\u1ee9 kh\u00f3 h\u01a1n,\u00a0cao si\u00eau h\u01a1n nh\u01b0 th\u01b0 vi\u1ec7n\/framework\u00a0c\u0169ng v\u1eady; ch\u1ec9 c\u1ea7n b\u1ea1n n\u1eafm v\u1eefng c\u0103n b\u1ea3n c\u1ee7a ch\u00fang th\u00ec s\u1ebd d\u1ec5 h\u1ecdc, d\u1ec5 \u00e1p d\u1ee5ng h\u01a1n nhi\u1ec1u.<\/p>\n\n\n\n \u0110\u1ec3 c\u00f3 t\u01b0 duy t\u1ed1t, ph\u1ea3i n\u1eafm v\u1eefng c\u01a1 b\u1ea3n. Nh\u01b0ng l\u00e0m sao \u0111\u1ec3 n\u1eafm v\u1eefng ch\u00fang b\u00e2y gi\u1edd??<\/p>\n\n\n\n B\u1eadt m\u00ed nh\u1ecf n\u00e8, d\u00f9 b\u1ea1n c\u00f3 h\u1ecdc k\u0129 l\u00fd thuy\u1ebft t\u1edbi m\u1ea5y, ch\u00fang c\u0169ng ch\u1ec9 l\u00e0 \u2026 l\u00fd thuy\u1ebft<\/strong> th\u00f4i! \u0110\u1ec3 n\u1eafm v\u1eefng ki\u1ebfn th\u1ee9c l\u1eadp tr\u00ecnh, thu\u1eadt to\u00e1n, b\u1ea1n ph\u1ea3i ch\u1ecbu kh\u00f3 .. l\u00e0m b\u00e0i t\u1eadp<\/strong> \u0111\u1ec3 \u00e1p d\u1ee5ng ch\u00fang.<\/p>\n\n\n\n V\u00ed d\u1ee5 nh\u01b0 m\u1ed9t b\u00e0i to\u00e1n m\u00e0 Google hay h\u1ecfi: L\u00e0m sao \u0111\u1ec3 c\u00e2n b\u1eb1ng m\u1ed9t c\u00e2y nh\u1ecb ph\u00e2n (binary tree). B\u00e0i to\u00e1n n\u00e0y s\u1ebd c\u00f3 nhi\u1ec1u c\u00e1ch gi\u1ea3i:<\/p>\n\n\n\n Khi gi\u1ea3i nh\u1eefng b\u00e0i t\u1eadp n\u00e0y, b\u1ea1n s\u1ebd h\u1ecdc \u0111\u01b0\u1ee3c c\u00e1ch \u00e1p d\u1ee5ng nh\u1eefng c\u1ea5u tr\u00fac d\u1eef li\u1ec7u v\u00e0o th\u1ef1c t\u1ebf, c\u00e1ch vi\u1ebft code cho ch\u00fang ch\u1ea1y ra sao.<\/p>\n\n\n\n Ngu\u1ed3n h\u1ecdc th\u00ec tr\u00ean m\u1ea1ng c\u00f3 c\u0169ng nhi\u1ec1u, m\u00ecnh ch\u1ec9 gi\u1edbi thi\u1ec7u m\u1ed9t s\u1ed1 s\u00e1ch\/web hay n\u00ean h\u1ecdc:<\/p>\n\n\n\n Vi\u1ec7c gi\u1ea3i b\u00e0i t\u1eadp s\u1ebd r\u00e8n cho b\u1ea1n c\u00e1ch t\u01b0 duy, c\u00e1ch gi\u1ea3i quy\u1ebft nh\u1eefng v\u1ea5n \u0111\u1ec1 nh\u1ecf. Tuy nhi\u00ean,\u00a0khi \u0111i l\u00e0m th\u1ef1c t\u1ebf, c\u00e1c d\u1ef1 \u00e1n ph\u1ea7n m\u1ec1m \u0111a ph\u1ea7n l\u00e0\u00a0nh\u1eefng v\u1ea5n \u0111\u1ec1 \u2026 to to<\/strong>, do nhi\u1ec1u v\u1ea5n \u0111\u1ec1 nh\u1ecf gh\u00e9p l\u1ea1i.<\/p>\n\n\n\n V\u00ec th\u1ebf, b\u00ean c\u1ea1nh t\u01b0 duy thu\u1eadt to\u00e1n, t\u01b0 duy s\u1ea3n ph\u1ea9m c\u0169ng r\u1ea5t quan tr\u1ecdng. N\u00f3 s\u1ebd gi\u00fap b\u1ea1n ph\u00e1t hi\u1ec7n \u0111\u01b0\u1ee3c s\u1ea3n ph\u1ea9m c\u1ea7n nh\u1eefng t\u00ednh n\u0103ng g\u00ec, khi d\u1ef1 \u00e1n b\u1ef1 l\u00ean th\u00ec code nh\u01b0 th\u1ebf n\u00e0o cho kh\u00f4ng b\u1ecb r\u1ed1i, d\u1ec5 b\u1ea3o tr\u00ec.<\/p>\n\n\n\n Do v\u1eady, sau khi l\u00e0m to\u00e1n nhi\u1ec1u, c\u00e1c b\u1ea1n c\u00f3 th\u1ec3\u00a0l\u00e0m m\u1ed9t s\u1ed1 pet project nh\u1ecf\u00a0\u0111\u1ec3 luy\u1ec7n k\u0129 n\u0103ng s\u1ea3n ph\u1ea9m. B\u1ea1n s\u1ebd v\u00f4 c\u00f9ng ng\u1ea1c nhi\u00ean tr\u01b0\u1edbc nh\u1eefng th\u1ee9 m\u00ecnh c\u00f3 th\u1ec3 h\u1ecdc \u0111\u01b0\u1ee3c nh\u01b0:<\/p>\n\n\n\n N\u1ebfu b\u1ea1n \u0111\u00e3 \u0111i l\u00e0m, \u0111\u1eebng ngh\u0129 l\u00e0 m\u00ecnh \u0111\u00e3 l\u00e0m d\u1ef1 \u00e1n th\u1ef1c t\u1ebf r\u1ed3i, c\u1ea7n g\u00ec ph\u1ea3i l\u00e0m pet project nh\u00e9!<\/p>\n\n\n\n \u0110a ph\u1ea7n c\u00e1c d\u1ef1 \u00e1n th\u1ef1c t\u1ebf \u0111\u00e3 c\u00f3 c\u1ea5u tr\u00fac s\u1eb5n, c\u00f3 qui tr\u00ecnh r\u00f5 r\u00e0ng, c\u00f3 design l\u00e0m h\u1ebft, c\u00f4ng vi\u1ec7c c\u1ee7a ch\u00fang ta ch\u1ec9 c\u00f3 implement l\u00e0 nhi\u1ec1u. T\u1ef1 l\u00e0m m\u1ed9t d\u1ef1 \u00e1n t\u1eeb \u0111\u1ea7u, b\u1ea1n s\u1ebd h\u1ecdc \u0111\u01b0\u1ee3c nhi\u1ec1u \u0111i\u1ec1u h\u01a1n<\/strong> \u0111\u1ea5y!<\/p>\n\n\n\n N\u1ebfu c\u00e1c b\u1ea1n m\u1edbi h\u1ecdc, mu\u1ed1n l\u00e0m d\u1ef1 \u00e1n nh\u01b0ng ch\u01b0a c\u00f3 \u00fd t\u01b0\u1edfng th\u00ec c\u00f3 th\u1ec3 tham kh\u1ea3o b\u00e0i\u00a0Nh\u1eefng project nh\u1ecf b\u1ea1n c\u00f3 th\u1ec3 d\u00f9ng \u0111\u1ec3 luy\u1ec7n t\u1eadp\u00a0nha.<\/p>\n\n\n\n M\u1ed9t trong nh\u1eefng c\u00e1ch hi\u1ec7u qu\u1ea3 \u0111\u1ec3 r\u00e8n luy\u1ec7n t\u01b0 duy l\u1eadp tr\u00ecnh, \u0111\u00f3 l\u00e0 h\u1ecdc h\u1ecfi c\u00e1ch ng\u01b0\u1eddi kh\u00e1c t\u01b0 duy<\/strong>; h\u1ecdc nh\u1eefng th\u1ee9 kh\u00e1c ho\u00e0n to\u00e0n v\u1edbi nh\u1eefng th\u1ee9 m\u00ecnh hay d\u00f9ng \u0111\u1ec3 h\u1ecdc c\u00e1ch t\u01b0 duy m\u1edbi:<\/p>\n\n\n\n H\u1ecdc m\u1ed9t th\u1ee9 m\u1edbi, b\u1ea1n s\u1ebd c\u00f3 c\u00e1i nh\u00ecn r\u1ed9ng h\u01a1n, t\u1ed5ng qu\u00e1t h\u01a1n v\u1ec1 ng\u00e0nh m\u00ecnh; \u0111\u1ed3ng th\u1eddi m\u1edf r\u1ed9ng \u0111\u1ea7u \u00f3c, n\u00e2ng cao kh\u1ea3 n\u0103ng t\u01b0 duy c\u1ee7a b\u1ea1n.<\/p>\n\n\n\n N\u00f3i nh\u1ecf nh\u00e9, n\u1ebfu mu\u1ed1n l\u00e0m\u00a0full-stack developer\u00a0th\u00ec c\u0169ng ph\u1ea3i n\u1eafm \u0111\u1ee7 th\u1ee9 h\u1ebft \u1ea5y: t\u1eeb front-end, back-end, security, database, DevOps \u0111\u1ee7 c\u1ea3!<\/p>\n\n\n\n Trong b\u00e0i n\u00e0y, m\u00ecnh \u0111\u00e3 chia s\u1ebb v\u1ec1 4 ph\u01b0\u01a1ng ph\u00e1p kh\u00e1 hi\u1ec7u qu\u1ea3 m\u00e0 m\u00ecnh hay d\u00f9ng \u0111\u1ec3 n\u00e2ng cao kh\u1ea3 n\u0103ng t\u01b0 duy l\u1eadp tr\u00ecnh.<\/p>\n\n\n\n N\u1ebfu c\u00e1c b\u1ea1n c\u00f3 kinh nghi\u1ec7m, ph\u01b0\u01a1ng ph\u00e1p n\u00e0o m\u00e0 m\u00ecnh c\u1ea3m th\u1ea5y hi\u1ec7u qu\u1ea3 th\u00ec c\u1ee9 comment ph\u00eda d\u01b0\u1edbi nha!<\/p>\n\n\n\n Via Toidicodedao<\/em><\/p>\n","protected":false},"excerpt":{"rendered":" K\u00ec tr\u01b0\u1edbc, m\u00ecnh \u0111\u00e3 c\u00f3 chia s\u1ebb v\u1ec1\u00a0c\u00e1i g\u1ecdi l\u00e0 c\u0103n b\u1ea3n v\u00e0 t\u01b0 duy l\u1eadp tr\u00ecnh, c\u00f9ng v\u1edbi t\u1ea7m quan tr\u1ecdng c\u1ee7a\u00a0vi\u1ec7c t\u01b0 duy trong ng\u00e0nh l\u1eadp tr\u00ecnh. M\u00ecnh c\u0169ng c\u00f3 khuy\u00ean l\u00e0 r\u00e8n luy\u1ec7n t\u01b0 duy l\u1eadp tr\u00ecnh c\u0169ng gi\u1ed1ng nh\u01b0 t\u1eadp t\u1ea1, mu\u1ed1n gi\u1ecfi th\u00ec ph\u1ea3i ch\u1ecbu kh\u00f3 r\u00e8n luy\u1ec7n th\u01b0\u1eddng xuy\u00ean. Nhi\u1ec1u […]<\/p>\n","protected":false},"author":12,"featured_media":40023,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_mi_skip_tracking":false,"tdm_status":"","tdm_grid_status":""},"categories":[1651,18],"tags":[],"yoast_head":"\n<\/figure><\/div>\n\n\n\n2. L\u00e0m b\u00e0i t\u1eadp v\u1ec1 thu\u1eadt to\u00e1n<\/strong><\/h5>\n\n\n\n
<\/figure><\/div>\n\n\n\n3. L\u00e0m s\u1ea3n ph\u1ea9m \u0111\u1ec3 c\u00f3 t\u01b0 duy s\u1ea3n ph\u1ea9m<\/strong><\/h5>\n\n\n\n
<\/figure><\/div>\n\n\n\n4. H\u1ecdc r\u1ed9ng h\u01a1n, h\u1ecdc nh\u1eefng th\u1ee9 m\u00ecnh ch\u01b0a bi\u1ebft<\/strong><\/h3>\n\n\n\n
<\/figure><\/div>\n\n\n\nK\u1ebft<\/strong><\/h3>\n\n\n\n