\u0110\u1ec3 c\u00f3 c\u00e1ch t\u00ednh l\u00f4 \u0111\u1ec1 hi\u1ec7u qu\u1ea3 nh\u1ea5t<\/strong>, ng\u01b0\u1eddi ch\u01a1i c\u1ea7n ph\u1ea3i b\u1ecf r\u1ea5t nhi\u1ec1u th\u1eddi gian v\u00e0 c\u00f4ng s\u1ee9c \u0111\u1ec3 c\u00f3 th\u1ec3 t\u00ecm ra \u0111\u01b0\u1ee3c quy lu\u1eadt cho nh\u1eefng con s\u1ed1. Sau khi t\u00ecm ra quy lu\u1eadt b\u1ea1n c\u1ea7n ph\u1ea3i ki\u1ec3m th\u1eed xem t\u1ef7 l\u1ec7 v\u1ec1 nh\u01b0 th\u1ebf n\u00e0o? Th\u1eadt s\u1ef1 m\u1ea5t r\u1ea5t nhi\u1ec1u th\u1eddi gian ph\u1ea3i kh\u00f4ng? Hi\u1ec3u \u0111\u01b0\u1ee3c \u0111i\u1ec1u \u0111\u00f3, c\u00e1c chuy\u00ean gia c\u1ee7a ch\u00fang t\u00f4i xin chia s\u1ebb \u0111\u1ebfn c\u00e1c b\u1ea1n m\u1ed9t s\u1ed1 c\u00e1ch t\u00ednh l\u00f4 \u0111\u1ec1 hi\u1ec7u qu\u1ea3 \u0111\u1ec3 c\u00e1c b\u1ea1n c\u00f3 t\u1ef7 l\u1ec7 th\u1eafng cao.<\/p>\n M\u1ee5c ti\u00eau h\u00e0ng \u0111\u1ea7u c\u1ee7a nh\u1eefng ng\u01b0\u1eddi \u0111am m\u00ea ch\u01a1i l\u00f4 \u0111\u1ec1 l\u00e0 b\u1eaft tr\u00fang c\u1ea7u \u0111\u1ec1. Kh\u00f4ng gi\u1ed1ng nh\u01b0 l\u00f4 c\u00f3 27 con t\u1ef7 l\u1ec7 th\u1eafng r\u1ea5t cao n\u00ean nhi\u1ec1u anh em b\u1eaft c\u1ea7u l\u00f4 hay tr\u00fang. Ng\u01b0\u1ee3c l\u1ea1i th\u00ec b\u1eaft c\u1ea7u \u0111\u1ec1 c\u00f3 t\u1ef7 l\u1ec7 th\u1eafng r\u1ea5t nh\u1ecf. \u0110\u1ec3 b\u1eaft \u0111\u01b0\u1ee3c ch\u00fang c\u1ea7u \u0111\u1ec1 ng\u01b0\u1eddi ch\u01a1i ph\u1ea3i c\u00f3 chi\u1ebfn thu\u1eadt, \u00f3c suy \u0111o\u00e1n v\u00e0 c\u00f3 c\u00e1ch b\u1eaft hi\u1ec7u qu\u1ea3.<\/p>\n <\/p>\n \u0110\u00e2y l\u00e0 m\u1ed9t trong nh\u1eefng c\u00e1ch soi c\u1ea7u \u0111\u1ec1 \u0111\u01b0\u1ee3c nhi\u1ec1u ng\u01b0\u1eddi l\u1ef1a ch\u1ecdn nh\u1ea5t m\u00e0 c\u00e1c chuy\u00ean gia trong l\u0129nh v\u1ef1c n\u00e0y khuy\u00ean s\u1eed d\u1ee5ng. Sau nhi\u1ec1u l\u1ea7n ki\u1ec3m ch\u1ee9ng cho th\u1ea5y ph\u01b0\u01a1ng ph\u00e1p n\u00e0y \u0111\u01b0\u1ee3c nhi\u1ec1u anh em l\u1ef1a ch\u1ecdn v\u00e0 c\u00f3 t\u1ef7 l\u1ec7 th\u1eafng kh\u00e1 cao.<\/p>\n C\u00e1c b\u1ea1n ch\u1ec9 c\u1ea7n l\u1ea5y con s\u1ed1 \u0111\u1ea7u ti\u00ean trong gi\u1ea3i \u0111\u1eb7c bi\u1ec7t c\u1ee7a x\u1ed5 s\u1ed1 mi\u1ec1n B\u1eafc m\u1edf th\u01b0\u1edfng v\u00e0o ng\u00e0y th\u1ee9 2 h\u00e0ng tu\u1ea7n \u0111\u1ec3 l\u00e0m t\u1ed5ng cho d\u00e0n \u0111\u1ec1 ch\u01a1i t\u1eeb ng\u00e0y th\u1ee9 3 \u0111\u1ebfn ch\u1ee7 nh\u1eadt c\u1ee7a tu\u1ea7n \u0111\u00f3 nh\u01b0 sau:<\/p>\n \u2013 C\u1ea7u \u0111\u1ec1 n\u00e0y c\u00f3 x\u00e1c su\u1ea5t ra 1 \u2013 2 l\u1ea7n trong 1 tu\u1ea7n n\u00ean t\u1ef7 l\u1ec7 th\u1eafng l\u1edbn kh\u00e1 cao. N\u1ebfu b\u1ea1n l\u00e0 ng\u01b0\u1eddi c\u1ea9n tr\u1ecdng th\u00ec c\u00f3 th\u1ec3 d\u1eebng \u1edf l\u1ea7n tr\u00fang \u0111\u1ea7u ti\u00ean \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o ti\u1ec1n l\u00e3i.<\/p>\n \u2013 C\u1ea7u \u0111\u1ec1 nu\u00f4i trong tu\u1ea7n th\u00f4ng th\u01b0\u1eddng s\u1ebd k\u00e9o d\u00e0i v\u00e0i tu\u1ea7n tr\u01b0\u1edbc khi t\u1ea1m d\u1eebng 1 \u2013 2 tu\u1ea7n n\u00ean c\u00e1c b\u1ea1n c\u1ea7n l\u01b0u \u00fd \u0111\u1ec3 tr\u00e1nh nu\u00f4i v\u00e0o tu\u1ea7n c\u1ea7u ngh\u1ec9.<\/p>\n \u2013 V\u1edbi ai th\u00edch ch\u01a1i th\u00eam l\u00f4 c\u00f3 th\u1ec3 nh\u1eb7t ra m\u1ed9t v\u00e0i con \u0111\u1eb9p nh\u1ea5t \u0111\u1ec3 \u0111\u00e1nh, v\u1eeba t\u0103ng th\u00eam l\u1ee3i nhu\u1eadn v\u00e0 tr\u00e1nh t\u00e2m l\u00fd ch\u00e1n n\u1ea3n khi \u0111\u1ec1 ch\u01b0a v\u1ec1.<\/p>\n VD: Th\u1ee9 2 ng\u00e0y 8\/6\/2024 gi\u1ea3i \u0111\u1eb7c bi\u1ec7t c\u1ee7a x\u1ed5 s\u1ed1 Mi\u1ec1n B\u1eafc v\u1ec1 80981. Theo c\u00e1ch t\u00ednh \u1edf tr\u00ean th\u00ec ch\u00fang ta s\u1ebd l\u1ea5y s\u1ed1 8 \u1edf \u0111\u1ea7u gi\u1ea3i l\u00e0m t\u1ed5ng, sau \u0111\u00f3 d\u00e0n \u0111\u1ec1 ch\u01a1i trong tu\u1ea7n \u0111\u00f3 nh\u01b0 sau: 08, 80, 17, 71, 26, 62, 35, 53, 44, 99. K\u1ebft qu\u1ea3 \u0111\u1ec1 v\u1ec1 44 ng\u00e0y 12\/6 v\u00e0 ng\u00e0y 15\/6 \u0111\u1ec1 v\u1ec1 99.<\/p>\n C\u00e1ch t\u00ednh \u0111\u1ec1 hi\u1ec7u qu\u1ea3 nh\u1ea5t, c\u00f3 t\u1ef7 l\u1ec7 th\u1eafng cao nh\u1ea5t \u0111\u00f3 ch\u00ednh l\u00e0 theo gi\u1ea3i \u0111\u1eb7c bi\u1ec7t ng\u00e0y th\u1ee9 4. Ng\u01b0\u1eddi ch\u01a1i ch\u1ec9 c\u1ea7n l\u1ea5y ch\u1eef s\u1ed1 \u1edf gi\u1eefa trong gi\u1ea3i \u0111\u1eb7c bi\u1ec7t c\u1ee7a x\u1ed5 s\u1ed1 mi\u1ec1n B\u1eafc ng\u00e0y th\u1ee9 4 l\u00e0m d\u00e0n \u0111\u1ec1 theo ch\u1ea1m ch\u01a1i \u0111\u1ebfn th\u1ee9 4 c\u1ee7a tu\u1ea7n sau \u0111\u00f3, c\u0169ng t\u01b0\u01a1ng t\u1ef1 nh\u01b0 c\u00e1ch ch\u01a1i \u1edf tr\u00ean.<\/p>\n VD: Th\u1ee9 4 ng\u00e0y 23\/5\/2024, gi\u1ea3i \u0111\u1eb7c bi\u1ec7t c\u1ee7a k\u1ebft qu\u1ea3 x\u1ed5 s\u1ed1 mi\u1ec1n B\u1eafc c\u00f3 d\u1ea1ng 18468, l\u1ea5y ch\u1eef s\u1ed1 \u1edf gi\u1eefa l\u00e0 s\u1ed1 4 ta nu\u00f4i d\u00e0n \u0111\u1ec1 ch\u1ea1m 4 trong tu\u1ea7n. K\u1ebft qu\u1ea3 ng\u00e0y 25\/5 \u0111\u1ec1 v\u1ec1 49.<\/p>\n D\u00e0n \u0111\u1eb7c bi\u1ec7t nu\u00f4i 7 ng\u00e0y t\u00ednh theo \u0111\u1ec1 v\u1ec1 ng\u00e0y th\u1ee9 5 c\u00f3 2 ph\u01b0\u01a1ng ph\u00e1p kh\u00e1 d\u1ec5 ch\u01a1i v\u00e0 d\u1ec5 hi\u1ec3u nh\u01b0 sau:<\/p>\n \u2013 C\u00e1ch th\u1ee9 nh\u1ea5t: trong k\u1ebft qu\u1ea3 \u0111\u1ec1 c\u1ee7a ng\u00e0y th\u1ee9 5 h\u00e0ng tu\u1ea7n, l\u1ea5y ch\u1eef s\u1ed1 \u0111\u1ea7u c\u1ee7a con \u0111\u1ec1 \u0111\u00f3 tr\u1eeb \u0111i 1 ta \u0111\u01b0\u1ee3c \u0111u\u00f4i c\u1ee7a d\u00e0n \u0111\u1ec1 nu\u00f4i 1 tu\u1ea7n ti\u1ebfp theo.<\/p>\n VD: Th\u1ee9 5 ng\u00e0y 24\/5\/2024, \u0111\u1ec1 v\u1ec1 49. L\u1ea5y s\u1ed1 \u0111\u1ea7u 4 \u2013 1 = 3, ta s\u1ebd nu\u00f4i d\u00e0n \u0111\u1ec1 ch\u1ea1m 3 t\u1eeb ng\u00e0y 25\/5 \u0111\u1ebfn ng\u00e0y 1\/6. K\u1ebft qu\u1ea3 l\u00e0 \u0111\u1ec1 v\u1ec1 03 ng\u00e0y 26\/5 v\u00e0 03 ng\u00e0y 30\/5.<\/p>\n \u2013 C\u00e1ch th\u1ee9 2: L\u1ea5y c\u1ea3 2 con s\u1ed1 trong s\u1ed1 \u0111\u1ec1 c\u1ee7a ng\u00e0y th\u1ee9 5 trong tu\u1ea7n \u0111\u01b0\u1ee3c 2 ch\u1ea1m nu\u00f4i trong 1 tu\u1ea7n sau \u0111\u00f3.<\/p>\n <\/p>\n L\u00f4 xi\u00ean ch\u1ee7 y\u1ebfu \u0111\u01b0\u1ee3c ng\u01b0\u1eddi ch\u01a1i ch\u00fa tr\u1ecdng nh\u1ea5t l\u00e0 l\u00f4 xi\u00ean 2, xi\u00ean 3 v\u00e0 xi\u00ean 4. N\u00f3 l\u00e0 m\u1ed9t nh\u00f3m c\u00e1c con s\u1ed1 r\u1eddi r\u1ea1c nhau. N\u1ebfu trong b\u1ea3ng x\u1ed5 s\u1ed1 mi\u1ec1n b\u1eafc v\u1ec1 \u0111\u01b0\u1ee3c \u0111\u1ee7 2, 3, 4 s\u1ed1 m\u00e0 b\u1ea1n ch\u1ecdn th\u00ec b\u1ea1n s\u1ebd \u0111\u01b0\u1ee3c tr\u00fang c\u1ea7u xi\u00ean \u0111\u00f3. V\u00e0 ch\u1eafc ch\u1eafn t\u1ef7 l\u1ec7 \u0103n c\u1ee7a n\u00f3 cao h\u01a1n nhi\u1ec1u so v\u1edbi l\u00f4 b\u1ea1ch th\u1ee7.<\/p>\n C\u00f3 r\u1ea5t nhi\u1ec1u c\u00e1ch \u0111\u1ec3 ch\u1ecdn l\u00f4 xi\u00ean. Nh\u01b0ng c\u00e1ch hay nh\u1ea5t \u0111\u1ec3 \u0111\u1ecdc v\u1ecb c\u1ea7u n\u00e0y l\u00e0 ch\u1ecdn nh\u1eefng c\u1eb7p s\u1ed1 th\u01b0\u1eddng ra v\u1edbi nhau. Ho\u1eb7c k\u1ebft h\u1ee3p l\u00f4 b\u1ea1ch th\u1ee7 v\u1edbi l\u00f4 k\u00e9p, c\u1eb7p ra c\u00f9ng nhau v\u1edbi b\u1ea1ch th\u1ee7\u2026. \u0111\u1ec3 c\u00f3 c\u1ea7u xi\u00ean 2, xi\u00ean 3, xi\u00ean 4 t\u1ed1t nh\u1ea5t cho m\u00ecnh.<\/p>\n T\u1ed5ng h\u1ee3p to\u00e0n t\u1eadp c\u00e1c c\u00e1ch soi c\u1ea7u \u0111\u1ec1 k\u00e9p s\u1ebd v\u1ec1 chu\u1ea9n nh\u1ea5t hi\u1ec7n nay, c\u00e1c b\u1ea1n h\u00e3y tham kh\u1ea3o c\u1ee5 th\u1ec3:<\/p>\nC\u00e1ch t\u00ednh \u0111\u1ec1 hi\u1ec7u qu\u1ea3 nh\u1ea5t \u2013 t\u1ef7 l\u1ec7 th\u1eafng cao<\/strong><\/h2>\n
C\u00e1ch d\u00e0n \u0111\u1ec1 \u0111\u00e1nh trong tu\u1ea7n c\u1ee7a ng\u00e0y th\u1ee9 2 trong s\u1ed1 \u0111\u1ea7u ti\u00ean c\u1ee7a gi\u1ea3i \u0111\u1eb7c bi\u1ec7t<\/h3>\n
\u0110\u1ec1 v\u1ec1 theo gi\u1ea3i \u0111\u1eb7c bi\u1ec7t c\u1ee7a ng\u00e0y th\u1ee9 4<\/h3>\n
T\u00ednh s\u1ed1 \u0111\u1ec1 mi\u1ec1n B\u1eafc d\u1ef1a v\u00e0o s\u1ed1 \u0111\u1ec1 c\u1ee7a ng\u00e0y th\u1ee9 5<\/h3>\n
Ph\u01b0\u01a1ng ph\u00e1p t\u00ednh l\u00f4 \u0111\u1ec1 hi\u1ec7u qu\u1ea3 nh\u1ea5t v\u00e0 nh\u1eefng \u0111i\u1ec1u c\u1ea7n bi\u1ebft<\/h2>\n
C\u00e1ch soi c\u1ea7u l\u00f4 \u0111\u1ec1 to\u00e0n t\u1eadp<\/h3>\n
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c\u1ea7u si\u00eau \u0111\u1eb9p uy t\u00edn mi\u1ec1n b\u1eafc v\u00edp<\/span><\/strong><\/h4>\n