D\u00e0n \u0111\u1ec1 th\u1ea5p th\u1ea5p, th\u1ea5p cao, cao th\u1ea5p, cao cao hi\u1ec7n nay \u0111\u01b0\u1ee3c c\u00e1c b\u1ea1n ch\u01a1i l\u00f4 \u0111\u1ec3 s\u1eed d\u1ee5ng r\u1ea5t nhi\u1ec1u. \u0110\u1ec3 c\u00e1c b\u1ea1n kh\u1ecfi b\u1ee1 ng\u1ee1 khi ti\u1ebfp x\u00fac v\u1edbi nh\u1eefng thu\u1eadt ng\u1eef, kh\u00e1i ni\u1ec7m n\u00e0y. Ch\u00fang t\u00f4i s\u1ebd \u0111\u0103ng lo\u1ea1t b\u00e0i vi\u1ebft v\u1ec1 kinh nghi\u1ec7m v\u00e0 ki\u1ebfn th\u1ee9c v\u1ec1 l\u00f4 \u0111\u1ec1, x\u1ed5 s\u1ed1. B\u00e0i vi\u1ebft v\u1ec1 d\u00e0n \u0111\u1ec1 th\u1ea5p th\u1ea5p, th\u1ea5p cao, cao th\u1ea5p, cao cao l\u00e0 m\u1ed9t trong c\u00e1c b\u00e0i vi\u1ebft \u0111\u00f3.<\/p>\n
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Ng\u01b0\u1eddi ta chia c\u00e1c s\u1ed1 t\u1eeb 0 \u0111\u1ebfn 9 th\u00e0nh 2 nh\u00f3m s\u1ed1:<\/p>\n
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- Nh\u00f3m th\u1ee9 nh\u1ea5t l\u00e0 nh\u00f3m s\u1ed1 \u201cth\u1ea5p\u201d g\u1ed3m c\u00e1c s\u1ed1: 0,1,2,3,4<\/li>\n
- Nh\u00f3m th\u1ee9 2 l\u00e0 nh\u00f3m s\u1ed1 \u201ccao\u201d g\u1ed3m c\u00e1c s\u1ed1: 5,6,7,8,9<\/li>\n<\/ul>\n
T\u1eeb 2 nh\u00f3m s\u1ed1 n\u00e0y h\u00ecnh th\u00e0nh n\u1ec1n c\u00e1c d\u00e0n \u0111\u1ec1 th\u1ea5p th\u1ea5p, th\u1ea5p cao, cao th\u1ea5p, cao cao nh\u01b0 ta n\u00f3i \u0111\u1ebfn \u1edf ti\u00eau \u0111\u1ec1 b\u00e0i vi\u1ebft.<\/p>\n
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