{"id":17758,"date":"2024-05-03T19:40:43","date_gmt":"2024-05-03T19:40:43","guid":{"rendered":"https:\/\/soicau5079.minhngocxoso.com\/?p=17758"},"modified":"2024-05-03T19:40:43","modified_gmt":"2024-05-03T19:40:43","slug":"cach-bat-de-4-cang-chuan-xac-hieu-qua-nhat","status":"publish","type":"post","link":"https:\/\/xosotructiep88.com\/cach-bat-de-4-cang-chuan-xac-hieu-qua-nhat\/","title":{"rendered":"c\u00e1ch b\u1eaft \u0111\u1ec1 4 c\u00e0ng chu\u1ea9n x\u00e1c, hi\u1ec7u qu\u1ea3 nh\u1ea5t"},"content":{"rendered":"
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\u0110\u00e1nh \u0111\u1ec1 4 c\u00e0ng l\u00e0 m\u1ed9t trong nh\u1eefng lo\u1ea1i l\u00f4 \u0111\u1ec1 d\u1ec5 \u0103n, d\u1ec5 tr\u00fang th\u01b0\u1edfng n\u00ean r\u1ea5t \u0111\u01b0\u1ee3c anh ch\u1ecb em l\u1ef1a ch\u1ecdn hi\u1ec7n nay. Tuy nhi\u00ean, \u0111\u1ed1i v\u1edbi nh\u1eefng ng\u01b0\u1eddi m\u1edbi b\u1eaft \u0111\u1ea7u th\u00ec c\u00e1ch ch\u01a1i l\u00f4 \u0111\u1ec1 b\u1ed1n c\u00e0ng ra sao \u0111\u1ec3 hi\u1ec7u qu\u1ea3 nh\u1ea5t l\u00e0 v\u1ea5n \u0111\u1ec1 r\u1ea5t nan gi\u1ea3i. Ch\u00ednh v\u00ec v\u1eady, trong b\u00e0i vi\u1ebft n\u00e0y, s\u1ebd g\u1eedi t\u1edbi cho anh em nh\u1eefng th\u00f4ng tin h\u1eefu \u00edch nh\u1ea5t v\u1ec1 \u0111\u1ec1 b\u1ed1n c\u00e0ng. C\u00f9ng t\u00ecm hi\u1ec3u ngay nh\u00e9<\/p>\n\n\n\n
\u0110\u1ec1 b\u1ed1n c\u00e0ng hi\u1ec3u \u0111\u01a1n gi\u1ea3n l\u00e0 ph\u01b0\u01a1ng ph\u00e1p \u0111\u00e1nh d\u1ef1 \u0111o\u00e1n \u0111\u00fang 4 con s\u1ed1 cu\u1ed1i c\u1ee7a gi\u1ea3i \u0111\u1eb7c bi\u1ec7t. Ph\u01b0\u01a1ng ph\u00e1p soi \u0111\u00e1nh n\u00e0y t\u1ef7 l\u1ec7 tr\u00fang c\u1ef1c t\u1ed1t l\u00e0 1\/10000, n\u1ebfu anh em n\u00e0o \u0103n \u0111\u01b0\u1ee3c con \u0111\u1ec1 b\u1ed1n c\u00e0ng th\u00ec \u0111\u01b0\u1ee3c tr\u1ea3 th\u01b0\u1edfng s\u1ed1 ti\u1ec1n kh\u1ed5ng l\u1ed3.<\/p>\n\n\n\n
\u0110\u00e1nh l\u00f4 \u0111\u1ec1 4 c\u00e0ng v\u00f4 c\u00f9ng kh\u00f3 kh\u0103n, v\u1eady th\u00ec t\u1ea1i sao ph\u01b0\u01a1ng ph\u00e1p n\u00e0y l\u1ea1i \u0111\u01b0\u1ee3c nhi\u1ec1u ng\u01b0\u1eddi l\u1ef1a ch\u1ecdn? B\u1edfi v\u00ec, tuy t\u1ef7 l\u1ec7 tr\u00fang r\u1ea5t kh\u00f3, nh\u01b0ng n\u1ebfu tr\u00fang th\u01b0\u1edfng r\u1ed3i th\u00ec anh em c\u00f3 th\u1ec3 l\u1ea5y l\u1ea1i v\u1ed1n l\u1eabn l\u1eddi, thay \u0111\u1ed5i c\u1ea3 v\u1eadn m\u1ec7nh con ng\u01b0\u1eddi.<\/p>\n\n\n\n
\u0110\u1ed1i v\u1edbi anh em ch\u01a1i \u0111\u1ec1 l\u00e2u n\u0103m th\u00ec vi\u1ec7c t\u00ednh ti\u1ec1n chi bao nhi\u00eau, thu l\u1ea1i bao nhi\u00eau l\u00e0 c\u1ef1c k\u1ef3 quan tr\u1ecdng. \u0110i\u1ec1u n\u00e0y s\u1ebd gi\u00fap anh em th\u1ed1ng k\u00ea \u0111\u01b0\u1ee3c s\u1ed1 ti\u1ec1n v\u1ed1n b\u1ecf ra \u0111\u1ea7u t\u01b0 c\u00f3 hi\u1ec7u qu\u1ea3 kh\u00f4ng, sinh l\u1eddi hay l\u00e0 l\u1ed7 \u0111\u1ec3 t\u1eeb \u0111\u00f3 t\u00ednh to\u00e1n l\u1ea1i sao cho h\u1ee3p l\u00fd.<\/p>\n\n\n\n
\u200b\u200b\u200b\u200b\u200b\u200b\u200b<\/p>\n\n\n\n
V\u1eady n\u00ean hi\u1ec3u \u0111\u01b0\u1ee3c tr\u00fang \u0111\u1ec1 4 c\u00e0ng \u0103n bao nhi\u00eau l\u00e0 v\u1ea5n \u0111\u1ec1 \u0111\u01b0\u1ee3c r\u1ea5t nhi\u1ec1u anh em quan t\u00e2m. C\u00e2u tr\u1ea3 l\u1eddi \u0111\u00f3 l\u00e0, kh\u00f4ng c\u00f3 m\u1ed9t t\u1ef7 l\u1ec7 \u0103n 4 c\u00e0ng n\u00e0o c\u1ee5 th\u1ec3, c\u00f2n t\u00f9y thu\u1ed9c v\u00e0o m\u1ed7i nh\u00e0 c\u00e1i.<\/p>\n\n\n\n
Th\u00f4ng th\u01b0\u1eddng t\u1ef7 l\u1ec7 \u0103n 4 c\u00e0ng s\u1ebd r\u1ea5t r\u1ea5t cao 1 \u0103n 8880 (v\u1edbi m\u1ee9c ti\u1ec1n c\u01b0\u1ee3c th\u1ea5p nh\u1ea5t ch\u1ec9 l\u00e0 1000 vn\u0111). V\u1eady t\u1ee9c l\u00e0 anh em ch\u1ec9 c\u1ea7n b\u1ecf ra s\u1ed1 v\u1ed1n 1000 vn\u0111 l\u00e0 \u0111\u00e3 c\u00f3 th\u1ec3 thu v\u1ec1 8880000 vn\u0111 r\u1ed3i \u0111\u1ea5y nh\u00e9.<\/p>\n\n\n\n
B\u00ed k\u00edp b\u1eaft \u0111\u1ec1 n\u00e0y t\u01b0\u01a1ng \u0111\u1ed1i \u0111\u01a1n gi\u1ea3n nh\u01b0 sau:<\/p>\n\n\n\n
S\u1ed1 1 \u0111\u01b0\u1ee3c quy \u01b0\u1edbc cho ng\u00e0y l\u1ebb, c\u00f2n s\u1ed1 2 \u0111\u01b0\u1ee3c quy \u01b0\u1edbc cho ng\u00e0y ch\u1eb5n. V\u00e0 anh em h\u00e3y \u00e1p d\u1ee5ng c\u00f4ng th\u1ee9c T\u1ed5ng (ng\u00e0y) v\u00e0 (th\u00e1ng) \u2013 Ng\u00e0y ch\u1eb5n\/l\u1ebb + B\u1ea1ch th\u1ee7 l\u00f4 = C\u1eb7p l\u00f4 s\u1ed1 4 c\u00e0ng c\u1ea7n t\u00ecm.<\/p>\n\n\n\n
V\u00ed d\u1ee5, h\u00f4m nay l\u00e0 ng\u00e0y 10\/11 t\u1ed5ng ng\u00e0y v\u00e0 th\u00e1ng = 10+11 = 21. Ng\u00e0y ch\u1eb5n \u0111\u01b0\u1ee3c quy \u01b0\u1edbc l\u00e0 s\u1ed1 2, nh\u01b0 v\u1eady ta c\u00f3 ph\u00e9p t\u00ednh 21-2= 19. K\u1ebf ti\u1ebfp, ta s\u1ebd l\u1ea5y con s\u1ed1 19 gh\u00e9p v\u1edbi b\u1ea1ch th\u1ee7 l\u00f4 c\u1ee7a ng\u00e0y h\u00f4m nay l\u00e0 26 => Con 4 c\u00e0ng l\u00e0 2926.<\/p>\n\n\n\n
\u0110\u1ed1i v\u1edbi tr\u01b0\u1eddng h\u1ee3p s\u1ed1 ng\u00e0y d\u01b0\u1edbi 10 nh\u01b0 1, 2, 3, 4, 5…9 th\u00ec ta s\u1ebd ko \u00e1p d\u1ee5ng c\u00f4ng th\u1ee9c n\u00e0y nh\u00e9.<\/p>\n\n\n\n
S\u1eed d\u1ee5ng ph\u01b0\u01a1ng ph\u00e1p b\u1ea1c nh\u1edb l\u00e0 m\u1ed9t c\u00e1ch kh\u00f4n ngoan \u0111\u1ec3 t\u00ecm ra \u0111\u01b0\u1ee3c con s\u1ed1 \u0111\u1ec1 c\u00e0ng chu\u1ea9n nh\u1ea5t. \u0110\u00e2y l\u00e0 quy lu\u1eadt \u0111\u00e3 \u0111\u01b0\u1ee3c nhi\u1ec1u th\u1ebf h\u1ec7 cao th\u1ee7 l\u00e3o l\u00e0ng ho\u00e0n thi\u1ec7n v\u00e0 ki\u1ec3m ch\u1ee9ng:<\/p>\n\n\n\n
– Th\u1ee9 2 k\u1ebft qu\u1ea3 th\u01b0\u1eddng s\u1ebd v\u1ec1 con c\u00e0ng 5.<\/p>\n\n\n\n
– Th\u1ee9 3 th\u01b0\u1eddng s\u1ebd v\u1ec1 con c\u00e0ng 3, 8.<\/p>\n\n\n\n
– Th\u1ee9 4 th\u01b0\u1eddng s\u1ebd v\u1ec1 con c\u00e0ng 7.<\/p>\n\n\n\n
– Th\u1ee9 5 th\u01b0\u1eddng s\u1ebd v\u1ec1 con c\u00e0ng 6, 9.<\/p>\n\n\n\n
– Th\u1ee9 6 th\u01b0\u1eddng s\u1ebd v\u1ec1 con c\u00e0ng 0, 2.<\/p>\n\n\n\n
– Th\u1ee9 7 th\u01b0\u1eddng s\u1ebd v\u1ec1 con c\u00e0ng 1, 4.<\/p>\n\n\n\n
– Ch\u1ee7 Nh\u1eadt th\u01b0\u1eddng s\u1ebd v\u1ec1 con c\u00e0ng 0.<\/p>\n\n\n\n
C\u00f3 th\u1ec3 th\u1ea5y, \u00e1p d\u1ee5ng ph\u01b0\u01a1ng ph\u00e1p b\u1ea1c nh\u1edb s\u1ebd ti\u1ebft ki\u1ec7m th\u1eddi gian v\u00e0 t\u0103ng t\u1ef7 l\u1ec7 tr\u00fang th\u01b0\u1edfng cao h\u01a1n, nh\u1ea5t l\u00e0 khi k\u1ebft h\u1ee3p v\u1edbi c\u00e1c ph\u01b0\u01a1ng ph\u00e1p kh\u00e1c \u0111\u1ec3 t\u00ecm con b\u1ea1ch th\u1ee7 4 c\u00e0ng.<\/p>\n\n\n\n
B\u00ed quy\u1ebft t\u00ednh n\u00e0y d\u1ef1a tr\u00ean kinh nghi\u1ec7m t\u00ednh to\u00e1n c\u1ee7a nh\u1eefng ng\u01b0\u1eddi ch\u01a1i tr\u01b0\u1edbc truy\u1ec1n l\u1ea1i, v\u1edbi c\u00f4ng th\u1ee9c \u0111\u00f3 l\u00e0: Th\u1ee9 + Ng\u00e0y + B\u1ea1ch th\u1ee7 l\u00f4 = \u0111\u1ec1 4 c\u00e0ng <\/p>\n\n\n\n
V\u00ed d\u1ee5 \u0111\u01a1n gi\u1ea3n nh\u01b0 sau<\/p>\n\n\n\n
– Tr\u01b0\u1eddng h\u1ee3p 1, H\u00f4m nay l\u00e0 th\u1ee9 6 v\u00e0 ng\u00e0y 2, B\u1ea1ch Th\u1ee7 L\u00f4 m\u00e0 b\u1ea1n t\u00ednh to\u00e1n \u0111\u01b0\u1ee3c l\u00e0 17, v\u1eady th\u00ec ta s\u1ebd ti\u1ebfn h\u00e0nh gh\u00e9p c\u00e1c con s\u1ed1 \u0111\u00f3 l\u1ea1i v\u1edbi nhau \u0111\u01b0\u1ee3c con 4 c\u00e0ng 6217.<\/p>\n\n\n\n
– Tr\u01b0\u1eddng h\u1ee3p 2: H\u00f4m nay l\u00e0 th\u1ee9 3 v\u00e0 ng\u00e0y 25, B\u1ea1ch Th\u1ee7 l\u00f4 l\u00e0 67, v\u1eady th\u00ec ta s\u1ebd gh\u00e9p \u0111\u01b0\u1ee3c con s\u1ed1 4 c\u00e0ng \u0111\u00f3 l\u00e0 32567.<\/p>\n\n\n\n
C\u00e1ch b\u1eaft t\u1ed5ng \u0111\u1ec1 4 ng\u00e0y \u0111\u01b0\u1ee3c \u0111\u00e1nh gi\u00e1 l\u00e0 m\u1ed9t trong nh\u1eefng ph\u01b0\u01a1ng ph\u00e1p b\u1eaft c\u00e0ng 4 chu\u1ea9n x\u00e1c, gi\u00fap \u0103n \u0111\u1ec1 li\u00ean t\u1ee5c. C\u00e1c chuy\u00ean gia l\u00f4 \u0111\u1ec1 c\u0169ng \u0111\u00e1nh gi\u00e1 r\u1ea5t cao ph\u01b0\u01a1ng ph\u00e1p n\u00e0y, c\u1ee5 th\u1ec3 nh\u01b0 sau: T\u1ed5ng \u0111\u1ec1 (ng\u00e0y 1, 2, 3, 4) => Con 4 c\u00e0ng.<\/p>\n\n\n\n
V\u00ed d\u1ee5, b\u1ea1n mu\u1ed1n \u0111\u00e1nh 4 c\u00e0ng cho ng\u00e0y th\u1ee9 7, ta s\u1ebd xem th\u1ed1ng k\u00ea \u0111\u1ec1 \u0111\u1eb7c bi\u1ec7t c\u1ee7a c\u00e1c ng\u00e0y h\u00f4m tr\u01b0\u1edbc:<\/p>\n\n\n\n
– Ng\u00e0y th\u1ee9 3, Gi\u1ea3i \u0111\u1eb7c bi\u1ec7t Mi\u1ec1n B\u1eafc l\u00e0 12536, t\u1ed5ng \u0111\u1ec1 6+3=9<\/p>\n\n\n\n
– Ng\u00e0y th\u1ee9 4, Gi\u1ea3i \u0111\u1eb7c bi\u1ec7t Mi\u1ec1n B\u1eafc l\u00e0 64484, t\u1ed5ng \u0111\u1ec1 8+4=2.<\/p>\n\n\n\n
– Ng\u00e0y th\u1ee9 5, Gi\u1ea3i \u0111\u1eb7c bi\u1ec7t Mi\u1ec1n B\u1eafc l\u00e0 41543, t\u1ed5ng \u0111\u1ec1 3+4=7.<\/p>\n\n\n\n
– Ng\u00e0y th\u1ee9 6, Gi\u1ea3i \u0111\u1eb7c bi\u1ec7t Mi\u1ec1n B\u1eafc l\u00e0 01290, t\u1ed5ng \u0111\u1ec1 9+0=9.<\/p>\n\n\n\n
Theo ph\u01b0\u01a1ng ph\u00e1p tr\u00ean, ta s\u1ebd c\u00f3 con 4 c\u00e0ng \u0111\u00e1nh v\u00e0o ng\u00e0y th\u1ee9 7 l\u00e0 9279.<\/p>\n\n\n\n
Trong b\u00e0i vi\u1ebft n\u00e0y, ch\u00fang t\u00f4i \u0111\u00e3 chia s\u1ebb cho c\u00e1c b\u1ea1n nh\u1eefng c\u00e1ch b\u1eaft \u0111\u1ec1 4 c\u00e0ng mi\u1ec1n B\u1eafc chu\u1ea9n x\u00e1c nh\u1ea5t. Nh\u1eefng ph\u01b0\u01a1ng ph\u00e1p ch\u01a1i l\u00f4 \u0111\u1ec1 n\u00e0y \u0111\u1ec1u d\u1ef1a v\u00e0o kinh nghi\u1ec7m c\u1ee7a nh\u1eefng tay ch\u01a1i l\u00e2u n\u0103m \u0111\u00fac k\u1ebft l\u1ea1i. Ch\u00fac anh em \u00e1p d\u1ee5ng th\u00e0nh c\u00f4ng<\/p>\n\n\n
<\/p>\r\n