Kinh nghi\u1ec7m b\u1eaft \u0111\u1ec1 k\u00e9p<\/p>\n<\/figcaption><\/figure>\nT\u00ecm hi\u1ec3u v\u1ec1 \u0111\u1ec1 k\u00e9p<\/b><\/h2>\n
C\u1ea7u k\u00e9p c\u00f2n \u0111\u01b0\u1ee3c g\u1ecdi kh\u00e1c l\u00e0 l\u00f4 k\u00e9p l\u00e0 nh\u1eefng s\u1ed1 c\u00f3 2 ch\u1eef s\u1ed1 gi\u1ed1ng nhau. V\u00ed d\u1ee5: 00, 11, 22, 33, 44, 55, 66, 77, 88, 99.<\/p>\n
\u0110\u1ec1 l\u00e0 2 s\u1ed1 cu\u1ed1i c\u1ee7a gi\u1ea3i \u0111\u1eb7c bi\u1ec7t. Mu\u1ed1n b\u1eaft \u0111\u01b0\u1ee3c c\u1ea7u \u0111\u1ec1 k\u00e9p th\u00ec b\u1ea1n ph\u1ea3i hi\u1ec3u r\u00f5 nh\u01b0 th\u1ebf n\u00e0o l\u00e0 c\u1ea7u k\u00e9p ph\u1ee5.<\/p>\n
C\u1ea7u k\u00e9p ph\u1ee5 l\u00e0 nh\u1eefng con l\u00f4 sau: 05, 50, 16, 61, 27, 72, 38, 83, 49, 94. T\u1ee9c l\u00e0 nh\u1eefng con s\u1ed1 c\u00f3 hi\u1ec7u c\u1ee7a 2 s\u1ed1 b\u1eb1ng 5 th\u00ec g\u1ecdi l\u00e0 c\u1ea7u k\u00e9p ph\u1ee5. N\u1ebfu mu\u1ed1n b\u1eaft c\u1ea7u k\u00e9p chu\u1ea9n x\u00e1c h\u01a1n th\u00ec n\u00ean nh\u1ee1 r\u00f5 m\u1ea5y con s\u1ed1 c\u1ea7u k\u00e9p ph\u1ee5 n\u00e0y.<\/p>\n
D\u1ea5u hi\u1ec7u \u0111\u1ec1 k\u00e9p b\u00e1o nh\u01b0 th\u1ebf n\u00e0o?<\/b><\/h2>\n
Tr\u1ea3i qua qu\u00e1 tr\u00ecnh ch\u1ecdn l\u1ecdc v\u00e0 tham kh\u1ea3o kinh nghi\u1ec7m t\u1eeb nh\u1eefng b\u1eadc ti\u1ec1n b\u1ed1i trong l\u0129nh v\u1ef1c \u201cs\u1ed1 h\u00f3a\u201d n\u00e0y, ch\u00fang t\u00f4i \u0111\u00fac k\u1ebft ra \u0111\u01b0\u1ee3c m\u1ed9t s\u1ed1 d\u1ea5u hi\u1ec7u nh\u1eadn bi\u1ebft \u0111\u1ec1 b\u00e1o k\u00e9p nh\u01b0 sau:<\/p>\n
Khi 2 s\u1ed1 \u0111\u1ea7u c\u1ee7a gi\u1ea3i \u0111\u1eb7c bi\u1ec7t l\u00e0 k\u00e9p th\u00ec \u0111\u1ec1 b\u00e1o k\u00e9p<\/b> s\u1ebd v\u1ec1 trong v\u00f2ng 1 tu\u1ea7n n\u00e0y ho\u1eb7c c\u00f3 th\u1ec3 s\u1ebd l\u00e2u h\u01a1n m\u1ed9t ch\u00fat \u0111\u1ebfn 10 ng\u00e0y. V\u00ec th\u1ebf, trong tu\u1ea7n n\u00e0y b\u1ea1n c\u00f3 th\u1ec3 nu\u00f4i k\u00e9p.<\/p>\n