L\u00f4 \u0111\u1ec1 b\u1ea1c nh\u1edb l\u00e0 m\u1ed9t ph\u01b0\u01a1ng ph\u00e1p \u0111\u01b0\u1ee3c lan truy\u1ec1n gi\u1eefa c\u00e1c ng\u01b0\u1eddi ch\u01a1i \u0111\u00e1nh \u0111\u1ec1 v\u1edbi nhau. Ph\u01b0\u01a1ng ph\u00e1p n\u00e0y n\u1ed5i ti\u1ebfng l\u00e0 kh\u1ea3 n\u0103ng d\u1ec5 s\u1eed d\u1ee5ng, \u0111\u1ed9 ch\u00ednh x\u00e1c cao. Kh\u00f4ng y\u00eau c\u1ea7u qu\u00e1 nhi\u1ec1u t\u00ednh to\u00e1n. V\u1eady ch\u01a1i l\u00f4 \u0111\u1ec1 c\u00f3 ph\u01b0\u01a1ng ph\u00e1p g\u00ec? S\u1eed d\u1ee5ng nh\u01b0 th\u1ebf n\u00e0o? C\u00f9ng tham kh\u1ea3o qua b\u00e0i vi\u1ebft n\u00e0y nh\u00e9!<\/p>\n
L\u00f4 \u0111\u1ec1 b\u1ea1c nh\u1edb hay c\u00f2n g\u1ecdi l\u00e0 nh\u1edb v\u1ec1 nh\u1eefng con s\u1ed1 \u0111\u00e3 ra \u0111\u1ec3 t\u1ed5ng h\u1ee3p v\u00e0 \u0111o\u00e1n \u0111\u01b0\u1ee3c con s\u1ed1 s\u1ebd v\u1ec1 v\u00e0o ng\u00e0y h\u00f4m sau. \u0110\u00e2y kh\u00f4ng ph\u1ea3i l\u00e0 m\u1ed9t ph\u01b0\u01a1ng ph\u00e1p, th\u1ee7 thu\u1eadt m\u00e0 l\u00e0 m\u1ed9t d\u1ea1ng kinh nghi\u1ec7m c\u1ee7a ng\u01b0\u1eddi ch\u01a1i. Ng\u01b0\u1eddi ch\u01a1i s\u1ebd t\u1ed5ng h\u1ee3p l\u1ea1i nh\u1eefng con s\u1ed1 \u0111\u00e3 v\u1ec1. Nh\u1eefng tr\u01b0\u1eddng h\u1ee3p \u0111\u1eb7c bi\u1ec7t nh\u01b0: Khi m\u1ed9t s\u1ed1 xu\u1ea5t hi\u1ec7n s\u1ebd k\u00e9o theo c\u00e1c con s\u1ed1 kh\u00e1c \u0111i c\u00f9ng ho\u1eb7c s\u1ebd v\u1ec1 v\u00e0o ng\u00e0y h\u00f4m sau. N\u00f3i \u0111\u01a1n gi\u1ea3n, \u0111\u00e2y l\u00e0 m\u1ed9t c\u00e1ch x\u00e1c \u0111\u1ecbnh l\u00f4 v\u1ec1 ng\u00e0y h\u00f4m nay d\u1ef1a v\u00e0o d\u1ea5u hi\u1ec7u c\u1ee7a c\u00e1c con l\u00f4 tr\u01b0\u1edbc \u0111\u00f3.<\/p>\n
Th\u00f4ng th\u01b0\u1eddng, b\u1ea1n ch\u1ec9 c\u1ea7n ghi nh\u1edb nh\u1eefng tr\u01b0\u1eddng soi l\u00f4 theo b\u1ea1c nh\u1edb \u0111\u1ec3 t\u00ecm cho m\u00ecnh m\u1ed9t b\u1ed9 s\u1ed1 c\u00f3 t\u1ef7 l\u1ec7 tr\u00fang cao nh\u1ea5t m\u00e0 kh\u00f4ng c\u1ea7n ph\u1ea3i t\u00ednh to\u00e1n qu\u00e1 nhi\u1ec1u. Tuy nhi\u00ean l\u00f4 \u0111\u1ec1 b\u1ea1c nh\u1edb d\u1ef1a h\u1ea7u h\u1ebft v\u00e0o kinh nghi\u1ec7m ng\u01b0\u1eddi ch\u01a1i. N\u00ean b\u1ea1n s\u1ebd c\u1ea7n ph\u1ea3i t\u00edch l\u0169y nhi\u1ec1u.<\/p>\n
L\u00e0 m\u1ed9t trong nh\u1eefng ph\u01b0\u01a1ng ph\u00e1p soi s\u1ed1 m\u1edbi nh\u1ea5t. Y\u00eau c\u1ea7u ng\u01b0\u1eddi ch\u01a1i s\u1ebd ph\u1ea3i t\u00ecm ra nh\u1eefng con s\u1ed1 \u0111\u1eb9p. C\u00e1ch th\u1ee9c xu\u1ea5t hi\u1ec7n c\u1ee7a b\u1ea1c nh\u1edb c\u00f3 m\u1ed9t quy lu\u1eadt nh\u1ea5t \u0111\u1ecbnh. \u0110i\u1ec1u ng\u01b0\u1eddi ch\u01a1i c\u1ea7n l\u00e0m l\u00e0 n\u1eafm \u0111\u01b0\u1ee3c c\u00e1c quy lu\u1eadt v\u00e0 chu k\u1ef3 c\u1ee7a con s\u1ed1 \u0111\u1ec3 \u0111\u01b0a ra d\u1ef1 \u0111o\u00e1n.<\/p>\n
Sau \u0111\u00e2y l\u00e0 m\u1ed9t s\u1ed1 con l\u00f4 \u0111u\u00f4i c\u00e2m th\u01b0\u1eddng xuy\u00ean xu\u1ea5t hi\u1ec7n theo th\u1ed1ng k\u00ea b\u1ea1c nh\u1edb hi\u1ec7n \u0111\u1ea1i.<\/p>\n
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B\u1ed9 nh\u1edb hi\u1ec7n \u0111\u1ea1i l\u00f4 t\u00f4 th\u01b0\u1eddng c\u00f3 quy lu\u1eadt kh\u00e1c nhau v\u00e0o c\u00e1c ng\u00e0y. V\u00e0 d\u1ef1a v\u00e0o vi\u1ec7c t\u00ecm ra quy lu\u1eadt \u0111\u00f3, b\u1ea1n s\u1ebd d\u1ef1 \u0111o\u00e1n \u0111\u01b0\u1ee3c s\u1ed1 l\u00f4 ra ti\u1ebfp theo.<\/p>\n
Ph\u01b0\u01a1ng ph\u00e1p b\u1ea1c nh\u1edb c\u00f3 nhi\u1ec1u \u01b0u \u0111i\u1ec3m h\u01a1n ph\u01b0\u01a1ng ph\u00e1p soi c\u1ea7u. Tuy nhi\u00ean b\u1ea1n c\u00f3 th\u1ec3 k\u1ebft h\u1ee3p nhi\u1ec1u ph\u01b0\u01a1ng ph\u00e1p kh\u00e1c nhau \u0111\u1ec3 c\u00f3 \u0111\u1ed9 ch\u00ednh x\u00e1c cao h\u01a1n. V\u00ed d\u1ee5 nh\u01b0 soi c\u1ea7u b\u1ea1c nh\u1edb.<\/p>\n
N\u1ebfu k\u1ebft qu\u1ea3 c\u00f3 xu\u1ea5t hi\u1ec7n \u0111\u1ea7u ho\u1eb7c \u0111u\u00f4i c\u00e2m b\u1ea1n h\u00e3y l\u1ef1a ch\u1ecdn c\u00e1c con s\u1ed1 t\u01b0\u01a1ng \u1ee9ng theo quy t\u1eafc d\u01b0\u1edbi \u0111\u00e2y:<\/p>\n
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Soi c\u1ea7u b\u1ea1c nh\u1edb \u0111u\u00f4i c\u00e2m c\u00f3 ph\u01b0\u01a1ng ph\u00e1p g\u1ea7n gi\u1ed1ng nh\u01b0 soi c\u1ea7u b\u1ea1c nh\u1edb b\u00ecnh th\u01b0\u1eddng. Tuy nhi\u00ean s\u1ebd c\u00f3 m\u1ed9t s\u1ed1 kh\u00e1c bi\u1ec7t nh\u01b0:<\/p>\n
\u0110\u00e2y l\u00e0 1 c\u00e1ch t\u00ednh b\u1ea1c nh\u1edb \u0111\u01a1n gi\u1ea3n v\u00e0 d\u1ec5 \u00e1p d\u1ee5ng. Theo ph\u01b0\u01a1ng ph\u00e1p n\u00e0y b\u1ea1n c\u1ea7n ph\u1ea3i cho ra t\u1ed5ng c\u00e1c s\u1ed1 th\u00e0nh ph\u1ea7n c\u1ee7a gi\u1ea3i \u0111\u1eb7c bi\u1ec7t v\u00e0 cho ra t\u1ed5ng gi\u1ea3i \u0111\u1eb7c bi\u1ec7t c\u1ee7a l\u00f4 ti\u1ebfp theo.<\/p>\n
N\u1ebfu l\u00f4 \u0111\u1eb7c bi\u1ec7t h\u00f4m nay c\u00f3 t\u1ed5ng b\u1eb1ng 2. H\u00f4m sau gi\u1ea3i \u0111\u1eb7c bi\u1ec7t c\u00f3 t\u1ed5ng b\u1eb1ng 9.<\/p>\n
T\u1ed5ng b\u1eb1ng 9. H\u00f4m sau t\u1ed5ng v\u1ec1 s\u1ebd l\u00e0 5.<\/p>\n
T\u1ed5ng 5 th\u00ec h\u00f4m sau s\u1ebd v\u1ec1 t\u1ed5ng 4, 6.<\/p>\n
T\u1ed5ng 4 th\u00ec v\u1ec1 3.<\/p>\n
T\u1ed5ng 3 th\u00ec t\u1ed5ng 0.<\/p>\n
N\u1ebfu t\u1ed5ng b\u1eb1ng 5 th\u00ec v\u1ec1 t\u1ed5ng 1.<\/p>\n
T\u1ed5ng b\u1eb1ng 1 th\u00ec ng\u00e0y ti\u1ebfp theo s\u1ebd v\u1ec1 7.<\/p>\n
T\u1ed5ng v\u1ec1 7 th\u00ec s\u1ebd c\u00f3 t\u1ed5ng h\u00f4m sau l\u00e0 2.<\/p>\n
T\u1ed5ng 2 s\u1ebd v\u1ec1 8.<\/p>\n
\u0110\u1eb7c bi\u1ec7t v\u1ec1 05 h\u00e3y \u0111\u00e1nh l\u00f4 95.<\/p>\n
Gi\u1ea3i v\u1ec1 29 (v\u00ed d\u1ee5 2629) h\u00e3y \u0111\u00e1nh l\u00f4 22 v\u00e0o ng\u00e0y h\u00f4m sau.<\/p>\n