{"id":17560,"date":"2024-02-15T23:29:01","date_gmt":"2024-02-15T23:29:01","guid":{"rendered":"https:\/\/soicau5034.minhngocxoso.com\/dau-duoi-cua-xo-so-la-gi\/"},"modified":"2024-02-15T23:29:01","modified_gmt":"2024-02-15T23:29:01","slug":"dau-duoi-cua-xo-so-la-gi","status":"publish","type":"post","link":"https:\/\/soicaulosongthu.com\/dau-duoi-cua-xo-so-la-gi\/","title":{"rendered":"\u0111\u1ea7u \u0111u\u00f4i c\u1ee7a x\u1ed5 s\u1ed1 l\u00e0 g\u00ec?"},"content":{"rendered":"
<\/div>\n
\n
<\/div>\n<\/div>\n
\n

Nhi\u1ec1u ng\u01b0\u1eddi m\u1edbi tham gia ch\u01a1i x\u1ed5 s\u1ed1 th\u01b0\u1eddng ch\u01b0a hi\u1ec3u r\u00f5 v\u1ec1  lu\u1eadt ch\u01a1i, c\u0169ng nh\u01b0 c\u00e1ch t\u00ednh gi\u1ea3i trong x\u1ed5 s\u1ed1. H\u1ecd th\u01b0\u1eddng h\u1ecfi nh\u1eefng c\u00e2u h\u1ecfi v\u1ec1 c\u00e1ch t\u00ednh l\u00f4 c\u0169ng nh\u01b0 vi\u1ec7c s\u1ed1 \u0111\u1ea7u s\u1ed1 \u0111u\u00f4i trong x\u1ed5 s\u1ed1 c\u00f3 \u00fd ngh\u0129a nh\u01b0 th\u1ebf n\u00e0o. \u0110\u1ec3 gi\u00fap b\u1ea1n \u0111\u1ecdc hi\u1ec3u h\u01a1n v\u1ec1 x\u1ed5 s\u1ed1, h\u00e3y c\u00f9ng t\u00ecm hi\u1ec3u r\u00f5 h\u01a1n v\u1ec1 \u0111\u1ea7u \u0111u\u00f4i x\u1ed5 s\u1ed1 l\u00e0 g\u00ec nh\u00e9!<\/p>\n

Nh\u01b0 th\u1ebf n\u00e0o \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 \u0111\u1ea7u \u0111u\u00f4i x\u1ed5 s\u1ed1 theo ki\u1ec3u truy\u1ec1n th\u1ed1ng<\/b><\/span><\/h2>\n

\u0110\u1ed1i v\u1edbi x\u1ed5 s\u1ed1 \u1edf m\u1ed7i mi\u1ec1n l\u1ea1i s\u1ebd c\u00f3 c\u00e1ch t\u00ednh \u0111\u1ea7u \u0111u\u00f4i l\u00f4 \u0111\u1ec1 kh\u00e1c nhau. Tuy nhi\u00ean  chung quy l\u1ea1i, x\u1ed5 s\u1ed1 \u1edf mi\u1ec1n Nam hay mi\u1ec1n B\u1eafc \u0111\u1ec1u c\u00f3 c\u00e1ch ch\u01a1i v\u00e0 tr\u00fang t\u01b0\u01a1ng t\u01b0\u01a1ng nh\u01b0 nhau. \u0110\u1ed1i v\u1edbi c\u00e1ch ch\u01a1i x\u1ed5 s\u1ed1 truy\u1ec1n th\u1ed1ng, ng\u01b0\u1eddi ch\u01a1i c\u1ea7n l\u01b0u \u00fd hai con s\u1ed1 n\u1eb1m \u1edf v\u1ecb tr\u00ed cu\u1ed1i trong gi\u1ea3i \u0111\u1eb7c bi\u1ec7t \u0111\u1ec3 x\u00e1c \u0111\u1ecbnh \u0111\u1ea7u \u0111u\u00f4i.<\/p>\n

V\u00ed d\u1ee5 nh\u01b0, gi\u1ea3i \u0111\u1eb7c bi\u1ec7t x\u1ed5 s\u1ed1 chi\u1ec1u h\u00f4m nay ra 21457 trong \u0111\u00f3 con s\u1ed1 5 s\u1ebd \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 s\u1ed1 \u0111\u1ea7u v\u00e0 con s\u1ed1 7 s\u1ebd \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 s\u1ed1 \u0111u\u00f4i. \u0110\u1ed1i v\u1edbi c\u00e1ch ch\u01a1i truy\u1ec1n th\u00f4ng m\u00e0 nhi\u1ec1u \u0111\u1ecba ph\u01b0\u01a1ng v\u1eabn \u0111ang s\u1eed d\u1ee5ng \u0111\u1ec3 ch\u01a1i \u0111\u1ea7u \u0111u\u00f4i \u0111\u01b0\u1ee3c t\u00ednh nh\u01b0 sau.<\/p>\n

V\u1eabn l\u00e0 v\u00ed d\u1ee5 gi\u1ea3i \u0111\u1eb7c bi\u1ec7t l\u00e0 s\u1ed1 21457, n\u1ebfu nh\u01b0 h\u00f4m \u0111\u00f3 b\u1ea1n \u0111\u00e1nh s\u1ed1 5 l\u00e0 b\u1ea1n tr\u00fang s\u1ed1 \u0111\u1ea7u, \u0111\u00e1nh s\u1ed1 7 l\u00e0 tr\u00fang s\u1ed1 \u0111u\u1ed5i( s\u1ed1 \u0111\u00edt).<\/p>\n

D\u00f2 \u0111\u1ea7u \u0111u\u00f4i c\u1ee7a x\u1ed5 s\u1ed1 theo ki\u1ec3u \u0111\u00e1nh A-B<\/b><\/span><\/h2>\n

M\u1ed9t s\u1ed1 n\u01a1i l\u1ea1i g\u1ecdi c\u00e1ch ch\u01a1i \u0111\u1ea7u \u0111u\u1ed5i theo m\u1ed9t h\u01b0\u1edbng kh\u00e1c. Ta c\u00f3 th\u1ec3 g\u1ecdi c\u00e1ch ch\u01a1i \u0111\u1ea7u \u0111u\u00f4i \u1ea5y theo ki\u1ec3u A-B. V\u00ed d\u1ee5 c\u1ee7a c\u00e1ch ch\u01a1i n\u00e0y r\u1ea5t \u0111\u01a1n gi\u1ea3n nh\u01b0 sau:<\/p>\n

\"d\u00f2<\/p>\n

N\u1ebfu h\u00f4m tr\u01b0\u1edbc b\u1ea1n \u0111\u00e1nh c\u00e1c c\u1eb7p s\u1ed1 56,65, 17, 97,82,28.35,65 v\u00e0 k\u1ebft qu\u1ea3 x\u1ed5 s\u1ed1 h\u00f4m \u1ea5y l\u00e0 56344 th\u00ec c\u00f3 ngh\u0129a l\u00e0 b\u1ea1n \u0111\u00e3 tr\u00fang s\u1ed1 \u0111\u1ea7u 56. \u0110\u00e1nh \u0111\u1ea7u A th\u00ec b\u1ea1n ch\u1ec9 c\u1ea7n so 2 con s\u1ed1 \u1edf v\u1ecb tr\u00ed s\u1ed1 1 v\u00e0 s\u1ed1 2 \u1edf gi\u1ea3i \u0111\u1eb7c bi\u1ec7t th\u00f4i.<\/p>\n

T\u01b0\u01a1ng t\u1ef1 nh\u01b0 v\u1eady n\u1ebfu \u0111\u00e1nh \u0111\u1ea7u B th\u00ec b\u1ea1n ch\u1ec9 c\u1ea7n so 2 con s\u1ed1 \u1edf v\u1ecb tr\u00ed 4 v\u00e0 5 c\u1ee7a gi\u1ea3i \u0111\u1eb7c bi\u1ec7t \u0111\u1ec3 bi\u1ebft m\u00ecnh c\u00f3 tr\u00fang gi\u1ea3i hay kh\u00f4ng. Theo m\u1ed9t c\u00f4ng th\u1ee9c nh\u1ea5t \u0111\u1ecbnh ta c\u00f3 th\u1ec3 hi\u1ec3u nh\u01b0 sau:<\/p>\n