\u0110\u00e1nh \u0111\u1ec1 \u0111\u1ea7u \u0111u\u00f4i l\u00e0 m\u1ed9t trong nh\u1eefng c\u00e1ch ch\u01a1i l\u00f4 \u0111\u1ec1 h\u1eefu \u00edch v\u1edbi t\u1ef7 l\u1ec7 tr\u00fang th\u01b0\u1edfng cao. So v\u1edbi nh\u1eefng ph\u01b0\u01a1ng ph\u00e1p \u0111\u00e1nh l\u00f4 \u0111\u1ec1 kh\u00e1c th\u00ec ch\u01a1i l\u00f4 \u0111\u1ec1 \u0111\u1ea7u \u0111u\u00f4i s\u1ebd kh\u00f3 h\u01a1n r\u1ea5t nhi\u1ec1u. Tuy nhi\u00ean, khi tr\u00fang ph\u1ea7n th\u01b0\u1edfng m\u00e0 ng\u01b0\u1eddi ch\u01a1i nh\u1eadn \u0111\u01b0\u1ee3c l\u1ea1i kh\u00f4ng h\u1ec1 nh\u1ecf. V\u1eady \u0111\u00e1nh l\u00f4 \u0111\u1ec1 \u0111\u1ea7u \u0111u\u00f4i l\u00e0 g\u00ec? C\u00e1ch \u0111\u00e1nh \u0111\u1ec1 \u0111\u1ea7u \u0111u\u00f4i nh\u01b0 th\u1ebf n\u00e0o \u0111\u1ec3 hi\u1ec7u qu\u1ea3 nh\u1ea5t? T\u1ea5t c\u1ea3 s\u1ebd \u0111\u01b0\u1ee3c b\u1eadt m\u00ed trong b\u00e0i vi\u1ebft d\u01b0\u1edbi \u0111\u00e2y. Theo d\u00f5i nh\u00e9.<\/p>\n
\u0110\u00e1nh \u0111\u1ec1 \u0111\u1ea7u \u0111u\u00f4i l\u00e0 g\u00ec?<\/strong><\/h2>\n\u0110\u00e1nh \u0111\u1ec1 \u0111\u1ea7u \u0111u\u00f4i hay c\u00f2n g\u1ecdi l\u00e0 bi\u00ean 2 l\u00f4 \u0111\u1ea7u \u0111u\u00f4i, \u0111\u00e2y ch\u00ednh l\u00e0 c\u00e1ch \u0111\u00e1nh ch\u1eb7n v\u00f2ng gh\u00e9p s\u1ed1 \u0111\u1ea7u c\u1ee7a k\u1ebft qu\u1ea3 x\u1ed5 s\u1ed1 gi\u1ea3i n\u00e0y v\u1edbi s\u1ed1 kia c\u1ee7a gi\u1ea3i kh\u00e1c t\u1ea1o th\u00e0nh c\u1eb7p s\u1ed1 \u0111\u00e1nh cho ng\u00e0y ti\u1ebfp theo. Khi s\u1eed d\u1ee5ng ph\u01b0\u01a1ng ph\u00e1p \u0111\u00e1nh \u0111\u1ec1 \u0111\u1ea7u \u0111u\u00f4i, ng\u01b0\u1eddi ch\u01a1i c\u1ea7n ph\u1ea3i \u00e1p d\u1ee5ng theo quy lu\u1eadt lo\u1ea1i tr\u1eeb nh\u01b0 sau:<\/p>\n
\n- Kh\u00f4ng s\u1eed d\u1ee5ng nh\u1eefng con s\u1ed1 c\u00f3 ch\u1ee9a s\u1ed1 0 \u1edf h\u00e0ng \u0111\u01a1n v\u1ecb nh\u01b0: 00, 10, 20, 30, 40, 50, 60, 70, 80, 90.<\/li>\n
- \u0110\u1ed1i v\u1edbi nh\u1eefng s\u1ed1 c\u00f3 s\u1ed1 0 \u1edf h\u00e0ng ch\u1ee5c th\u00ec anh em c\u0169ng b\u1ecf \u0111i kh\u00f4ng s\u1eed d\u1ee5ng \u0111\u1ebfn nh\u01b0: 00, 01, 02, 03, 04, 05, 06, 07, 08, 09.<\/li>\n
- B\u1ecf t\u1ea5t c\u1ea3 nh\u1eefng con s\u1ed1 k\u00e9p kh\u00f4ng d\u00f9ng \u0111\u1ebfn nh\u01b0: 11, 22, 33, 44, 55, 66, 77, 88, 99.<\/li>\n<\/ul>\n
Nh\u01b0 v\u1eady, d\u1ef1a theo quy lu\u1eadt tr\u00ean trong t\u1ed5ng s\u1ed1 100 s\u1ed1 l\u00f4 \u0111\u1ec1 ch\u00fang ta s\u1ebd lo\u1ea1i b\u1ecf \u0111\u01b0\u1ee3c 28 s\u1ed1 v\u00e0 l\u1ea5y \u0111\u01b0\u1ee3c 72 s\u1ed1 ph\u1ea3i bi\u00ean.<\/p>\n
C\u00e1ch \u0111\u00e1nh \u0111\u1ec1 \u0111\u1ea7u \u0111u\u00f4i<\/strong><\/h2>\nC\u00f3 2 c\u00e1nh \u0111\u00e1nh \u0111\u1ec1 \u0111\u1ea7u \u0111u\u00f4i \u0111\u1ec3 anh em c\u00f3 th\u1ec3 l\u1ef1a ch\u1ecdn nh\u01b0 sau:<\/p>\n
\u0110\u00e1nh \u0111\u1ec1 \u0111\u1ea7u \u0111u\u00f4i theo s\u1ed1 \u0111\u1ec1<\/strong><\/h3>\nKhi tham gia ch\u01a1i l\u00f4 \u0111\u1ec1 th\u00ec b\u1ea5t c\u1ee9 l\u00f4 th\u1ee7 n\u00e0o c\u0169ng ph\u1ea3i bi\u1ebft \u0111\u01b0\u1ee3c v\u1ecb tr\u00ed \u0111\u1ec1 \u1edf \u0111\u00e2u trong gi\u1ea3i \u0111\u1eb7c bi\u1ec7t c\u1ee7a ng\u00e0y h\u00f4m nay. Nh\u01b0 v\u1eady, trong gi\u1ea3i \u0111\u1eb7c bi\u1ec7t, \u0111\u1ea7u \u0111\u1ec1 s\u1ebd l\u00e0 h\u00e0ng ch\u1ee5c c\u00f2n \u0111\u00edt \u0111\u1ec1 l\u00e0 h\u00e0ng \u0111\u01a1n v\u1ecb. Khi \u0111\u00e1nh \u0111\u1ec1 \u0111\u1ea7u \u0111u\u00f4i, anh em c\u1ea7n ph\u1ea3i x\u00e1c \u0111\u1ecbnh \u0111\u01b0\u1ee3c \u0111\u1ea7u \u0111\u1ec1 l\u00e0 bao nhi\u00eau v\u00e0 \u0111u\u00f4i \u0111\u1ec1 l\u00e0 bao nhi\u00eau t\u1eeb \u0111\u00f3 m\u1edbi c\u00f3 th\u1ec3 \u0111\u01b0a ra \u0111\u01b0\u1ee3c con s\u1ed1 ch\u00ednh x\u00e1c nh\u1ea5t \u0111\u1ec3 \u0111\u00e1nh cho ng\u00e0y ti\u1ebfp theo.<\/p>\n
\u0110\u1ec3 d\u1ec5 hi\u1ec3u h\u01a1n, anh em h\u00e3y xem ngay v\u00ed d\u1ee5 sau: N\u1ebfu k\u1ebft qu\u1ea3 x\u1ed5 s\u1ed1 gi\u1ea3i \u0111\u1eb7c bi\u1ec7t h\u00f4m nay v\u1ec1 13623 th\u00ec s\u1ed1 \u0111\u1ec1 ch\u00ednh l\u00e0 con s\u1ed1 23. Trong \u0111\u00f3 s\u1ed1 2 l\u00e0 \u0111\u1ea7u \u0111\u1ec1 c\u00f2n s\u1ed1 3 l\u00e0 \u0111\u00edt \u0111\u1ec1.<\/p>\n
\u0110i\u1ec3m th\u00fa v\u1ecb c\u1ee7a c\u00e1ch \u0111\u00e1nh l\u00f4 \u0111\u1ec1 \u0111\u1ea7u \u0111u\u00f4i theo s\u1ed1 \u0111\u1ec1 ch\u00ednh l\u00e0 anh em ch\u1ec9 c\u1ea7n \u0111o\u00e1n tr\u00fang \u0111\u1ea7u \u0111\u1ec1 ho\u1eb7c \u0111\u00edt \u0111\u1ec1 l\u00e0 \u0111\u00e3 c\u00f3 ti\u1ec1n th\u01b0\u1edfng ch\u1ee9 kh\u00f4ng nh\u1ea5t thi\u1ebft l\u00e0 ph\u1ea3i \u0111o\u00e1n tr\u00fang c\u1ea3 2 \u0111\u1ea7u \u0111u\u00f4i.<\/p>\n
\u0110\u00e1nh \u0111\u1ec1 \u0111\u1ea7u \u0111u\u00f4i theo gi\u1ea3i \u0111\u1eb7c bi\u1ec7t<\/strong><\/h3>\n\u0110\u1ed1i v\u1edbi c\u00e1ch \u0111\u00e1nh \u0111\u1ec1 \u0111\u1ea7u \u0111u\u00f4i n\u00e0y, anh em c\u1ea7n ph\u1ea3i d\u1ef1a v\u00e0o k\u1ebft qu\u1ea3 x\u1ed5 s\u1ed1 gi\u1ea3i \u0111\u1eb7c bi\u1ec7t \u0111\u1ec3 d\u1ef1 \u0111o\u00e1n. Trong gi\u1ea3i \u0111\u1eb7c bi\u1ec7t, 2 s\u1ed1 \u0111\u1ea7u xu\u1ea5t hi\u1ec7n \u1edf v\u1ecb tr\u00ed s\u1ed1 1 v\u00e0 s\u1ed1 2 c\u1ee7a gi\u1ea3i \u0111\u1eb7c bi\u1ec7t l\u00e0 \u0111\u1ea7u \u0111\u1ec1 (\u00e1p d\u1ee5ng cho c\u1ea3 3 mi\u1ec1n). Tuy nhi\u00ean, k\u1ebft qu\u1ea3 x\u1ed5 s\u1ed1 gi\u1ea3i \u0111\u1eb7c bi\u1ec7t c\u1ee7a mi\u1ec1n l\u00e0 kh\u00e1c nhau, do \u0111\u00f3 c\u00e1ch x\u00e1c \u0111\u1ecbnh \u0111u\u00f4i \u0111\u1ec1 \u1edf gi\u1ea3i mi\u1ec1n B\u1eafc v\u00e0 mi\u1ec1n Nam c\u0169ng kh\u00e1c nhau, c\u1ee5 th\u1ec3:<\/p>\n
Nh\u01b0 v\u1eady, d\u1ef1a theo quy lu\u1eadt tr\u00ean trong t\u1ed5ng s\u1ed1 100 s\u1ed1 l\u00f4 \u0111\u1ec1 ch\u00fang ta s\u1ebd lo\u1ea1i b\u1ecf \u0111\u01b0\u1ee3c 28 s\u1ed1 v\u00e0 l\u1ea5y \u0111\u01b0\u1ee3c 72 s\u1ed1 ph\u1ea3i bi\u00ean.<\/p>\n
C\u00e1ch \u0111\u00e1nh \u0111\u1ec1 \u0111\u1ea7u \u0111u\u00f4i<\/strong><\/h2>\nC\u00f3 2 c\u00e1nh \u0111\u00e1nh \u0111\u1ec1 \u0111\u1ea7u \u0111u\u00f4i \u0111\u1ec3 anh em c\u00f3 th\u1ec3 l\u1ef1a ch\u1ecdn nh\u01b0 sau:<\/p>\n
\u0110\u00e1nh \u0111\u1ec1 \u0111\u1ea7u \u0111u\u00f4i theo s\u1ed1 \u0111\u1ec1<\/strong><\/h3>\nKhi tham gia ch\u01a1i l\u00f4 \u0111\u1ec1 th\u00ec b\u1ea5t c\u1ee9 l\u00f4 th\u1ee7 n\u00e0o c\u0169ng ph\u1ea3i bi\u1ebft \u0111\u01b0\u1ee3c v\u1ecb tr\u00ed \u0111\u1ec1 \u1edf \u0111\u00e2u trong gi\u1ea3i \u0111\u1eb7c bi\u1ec7t c\u1ee7a ng\u00e0y h\u00f4m nay. Nh\u01b0 v\u1eady, trong gi\u1ea3i \u0111\u1eb7c bi\u1ec7t, \u0111\u1ea7u \u0111\u1ec1 s\u1ebd l\u00e0 h\u00e0ng ch\u1ee5c c\u00f2n \u0111\u00edt \u0111\u1ec1 l\u00e0 h\u00e0ng \u0111\u01a1n v\u1ecb. Khi \u0111\u00e1nh \u0111\u1ec1 \u0111\u1ea7u \u0111u\u00f4i, anh em c\u1ea7n ph\u1ea3i x\u00e1c \u0111\u1ecbnh \u0111\u01b0\u1ee3c \u0111\u1ea7u \u0111\u1ec1 l\u00e0 bao nhi\u00eau v\u00e0 \u0111u\u00f4i \u0111\u1ec1 l\u00e0 bao nhi\u00eau t\u1eeb \u0111\u00f3 m\u1edbi c\u00f3 th\u1ec3 \u0111\u01b0a ra \u0111\u01b0\u1ee3c con s\u1ed1 ch\u00ednh x\u00e1c nh\u1ea5t \u0111\u1ec3 \u0111\u00e1nh cho ng\u00e0y ti\u1ebfp theo.<\/p>\n
\u0110\u1ec3 d\u1ec5 hi\u1ec3u h\u01a1n, anh em h\u00e3y xem ngay v\u00ed d\u1ee5 sau: N\u1ebfu k\u1ebft qu\u1ea3 x\u1ed5 s\u1ed1 gi\u1ea3i \u0111\u1eb7c bi\u1ec7t h\u00f4m nay v\u1ec1 13623 th\u00ec s\u1ed1 \u0111\u1ec1 ch\u00ednh l\u00e0 con s\u1ed1 23. Trong \u0111\u00f3 s\u1ed1 2 l\u00e0 \u0111\u1ea7u \u0111\u1ec1 c\u00f2n s\u1ed1 3 l\u00e0 \u0111\u00edt \u0111\u1ec1.<\/p>\n
\u0110i\u1ec3m th\u00fa v\u1ecb c\u1ee7a c\u00e1ch \u0111\u00e1nh l\u00f4 \u0111\u1ec1 \u0111\u1ea7u \u0111u\u00f4i theo s\u1ed1 \u0111\u1ec1 ch\u00ednh l\u00e0 anh em ch\u1ec9 c\u1ea7n \u0111o\u00e1n tr\u00fang \u0111\u1ea7u \u0111\u1ec1 ho\u1eb7c \u0111\u00edt \u0111\u1ec1 l\u00e0 \u0111\u00e3 c\u00f3 ti\u1ec1n th\u01b0\u1edfng ch\u1ee9 kh\u00f4ng nh\u1ea5t thi\u1ebft l\u00e0 ph\u1ea3i \u0111o\u00e1n tr\u00fang c\u1ea3 2 \u0111\u1ea7u \u0111u\u00f4i.<\/p>\n
\u0110\u00e1nh \u0111\u1ec1 \u0111\u1ea7u \u0111u\u00f4i theo gi\u1ea3i \u0111\u1eb7c bi\u1ec7t<\/strong><\/h3>\n\u0110\u1ed1i v\u1edbi c\u00e1ch \u0111\u00e1nh \u0111\u1ec1 \u0111\u1ea7u \u0111u\u00f4i n\u00e0y, anh em c\u1ea7n ph\u1ea3i d\u1ef1a v\u00e0o k\u1ebft qu\u1ea3 x\u1ed5 s\u1ed1 gi\u1ea3i \u0111\u1eb7c bi\u1ec7t \u0111\u1ec3 d\u1ef1 \u0111o\u00e1n. Trong gi\u1ea3i \u0111\u1eb7c bi\u1ec7t, 2 s\u1ed1 \u0111\u1ea7u xu\u1ea5t hi\u1ec7n \u1edf v\u1ecb tr\u00ed s\u1ed1 1 v\u00e0 s\u1ed1 2 c\u1ee7a gi\u1ea3i \u0111\u1eb7c bi\u1ec7t l\u00e0 \u0111\u1ea7u \u0111\u1ec1 (\u00e1p d\u1ee5ng cho c\u1ea3 3 mi\u1ec1n). Tuy nhi\u00ean, k\u1ebft qu\u1ea3 x\u1ed5 s\u1ed1 gi\u1ea3i \u0111\u1eb7c bi\u1ec7t c\u1ee7a mi\u1ec1n l\u00e0 kh\u00e1c nhau, do \u0111\u00f3 c\u00e1ch x\u00e1c \u0111\u1ecbnh \u0111u\u00f4i \u0111\u1ec1 \u1edf gi\u1ea3i mi\u1ec1n B\u1eafc v\u00e0 mi\u1ec1n Nam c\u0169ng kh\u00e1c nhau, c\u1ee5 th\u1ec3:<\/p>\n
Khi tham gia ch\u01a1i l\u00f4 \u0111\u1ec1 th\u00ec b\u1ea5t c\u1ee9 l\u00f4 th\u1ee7 n\u00e0o c\u0169ng ph\u1ea3i bi\u1ebft \u0111\u01b0\u1ee3c v\u1ecb tr\u00ed \u0111\u1ec1 \u1edf \u0111\u00e2u trong gi\u1ea3i \u0111\u1eb7c bi\u1ec7t c\u1ee7a ng\u00e0y h\u00f4m nay. Nh\u01b0 v\u1eady, trong gi\u1ea3i \u0111\u1eb7c bi\u1ec7t, \u0111\u1ea7u \u0111\u1ec1 s\u1ebd l\u00e0 h\u00e0ng ch\u1ee5c c\u00f2n \u0111\u00edt \u0111\u1ec1 l\u00e0 h\u00e0ng \u0111\u01a1n v\u1ecb. Khi \u0111\u00e1nh \u0111\u1ec1 \u0111\u1ea7u \u0111u\u00f4i, anh em c\u1ea7n ph\u1ea3i x\u00e1c \u0111\u1ecbnh \u0111\u01b0\u1ee3c \u0111\u1ea7u \u0111\u1ec1 l\u00e0 bao nhi\u00eau v\u00e0 \u0111u\u00f4i \u0111\u1ec1 l\u00e0 bao nhi\u00eau t\u1eeb \u0111\u00f3 m\u1edbi c\u00f3 th\u1ec3 \u0111\u01b0a ra \u0111\u01b0\u1ee3c con s\u1ed1 ch\u00ednh x\u00e1c nh\u1ea5t \u0111\u1ec3 \u0111\u00e1nh cho ng\u00e0y ti\u1ebfp theo.<\/p>\n
\u0110\u1ec3 d\u1ec5 hi\u1ec3u h\u01a1n, anh em h\u00e3y xem ngay v\u00ed d\u1ee5 sau: N\u1ebfu k\u1ebft qu\u1ea3 x\u1ed5 s\u1ed1 gi\u1ea3i \u0111\u1eb7c bi\u1ec7t h\u00f4m nay v\u1ec1 13623 th\u00ec s\u1ed1 \u0111\u1ec1 ch\u00ednh l\u00e0 con s\u1ed1 23. Trong \u0111\u00f3 s\u1ed1 2 l\u00e0 \u0111\u1ea7u \u0111\u1ec1 c\u00f2n s\u1ed1 3 l\u00e0 \u0111\u00edt \u0111\u1ec1.<\/p>\n
\u0110i\u1ec3m th\u00fa v\u1ecb c\u1ee7a c\u00e1ch \u0111\u00e1nh l\u00f4 \u0111\u1ec1 \u0111\u1ea7u \u0111u\u00f4i theo s\u1ed1 \u0111\u1ec1 ch\u00ednh l\u00e0 anh em ch\u1ec9 c\u1ea7n \u0111o\u00e1n tr\u00fang \u0111\u1ea7u \u0111\u1ec1 ho\u1eb7c \u0111\u00edt \u0111\u1ec1 l\u00e0 \u0111\u00e3 c\u00f3 ti\u1ec1n th\u01b0\u1edfng ch\u1ee9 kh\u00f4ng nh\u1ea5t thi\u1ebft l\u00e0 ph\u1ea3i \u0111o\u00e1n tr\u00fang c\u1ea3 2 \u0111\u1ea7u \u0111u\u00f4i.<\/p>\n