\u2013 Ph\u01b0\u01a1ng ph\u00e1p 1<\/strong>: D\u1ea1ng k\u1eb9p s\u1ed1<\/h5>\nTrong k\u1ebft qu\u1ea3 c\u1ee7a x\u1ed5 s\u1ed1, c\u00f3 h\u00e0ng lo\u1ea1t c\u00e1c d\u1ea1ng k\u1eb9p s\u1ed1 kh\u00e1c nhau, b\u1ea1n ch\u1ecdn nh\u1eefng con n\u00e0o k\u1eb9p gi\u1eefa hai s\u1ed1 1 ho\u1eb7c hai s\u1ed1 0 ho\u1eb7c hai s\u1ed1 8 v\u00e0 \u0111\u00e1nh c\u1eb7p s\u1ed1 \u0111\u1ecd li\u00ean ti\u1ebfp trong 3 ng\u00e0y.<\/p>\n
\u2013 Ph\u01b0\u01a1ng ph\u00e1p 2<\/strong>: D\u1ea1ng s\u1ed1<\/h4>\nN\u1ebfu th\u1ea5p gi\u1ea3i 4 s\u1ed1( k\u1ebft qu\u1ea3 x\u1ed5 s\u1ed1 gi\u1ea3i 4 v\u00e0 gi\u1ea3i 5) c\u00f3 d\u1ea1ng 2 \u0111\u01a1n v\u1ecb gh\u00e9p n\u00ean gi\u1ea3i 4 s\u1ed1 th\u00ec ch\u1ecdn c\u1eb7p s\u1ed1 \u0111\u00f3 ch\u01a1i li\u00ean ti\u1ebfp 3 ng\u00e0y.<\/p>\n
\u2013 Ph\u01b0\u01a1ng ph\u00e1p 3<\/strong>: Ch\u01a1i l\u00f4 1 ng\u00e0y<\/h5>\nB\u1ea1n xem \u0111\u1ea7u gi\u1ea3i 7 v\u00e0 cu\u1ed1i gi\u1ea3i 7 b\u1eb1ng nhau th\u00ec l\u1ea5y s\u1ed1 \u0111\u00f3 gh\u00e9p v\u1edbi s\u1ed1 gi\u1eefa gi\u1ea3i \u0110\u1eb7c Bi\u1ec7t v\u00e0 s\u1ed1 \u0111\u1ea7u gi\u1ea3i \u0110\u1eb7c Bi\u1ec7t th\u00e0nh 2 c\u1eb7p s\u1ed1 \u0111\u1ec3 \u0111\u00e1nh cho ng\u00e0y h\u00f4m sau. Th\u01b0\u1eddng \u00edt khi xu\u1ea5t hi\u1ec7n ra ki\u1ec3u n\u00e0y nh\u01b0ng \u0111\u00e2y l\u00e0 ph\u01b0\u01a1ng ph\u00e1p \u0111\u00e1nh l\u00f4 \u0111\u1ec1<\/strong> mang l\u1ea1i t\u1ef7 l\u1ec7 t\u00ednh to\u00e1n r\u1ea5t cao.<\/p>\n\u2013 Ph\u01b0\u01a1ng ph\u00e1p 4:<\/strong> Nu\u00f4i 3 ng\u00e0y d\u1ea1ng s\u1ed1 sau 68<\/h5>\nN\u1ebfu th\u1ea5y h\u00f4m n\u00e0o \u1edf gi\u1ea3i th\u1ee9 4 v\u00e0 gi\u1ea3i th\u1ee9 5 \u1edf gi\u1ea3i 4 s\u1ed1 c\u00f3 l\u00f4 68 th\u00ec 2 s\u1ed1 \u0111\u1eb1ng tr\u01b0\u1edbc 68 b\u1ea1n s\u1ebd s\u1eed d\u1ee5ng \u0111\u1ec3 ch\u01a1i 3 ng\u00e0y sau.<\/p>\n
N\u1ebfu th\u1ea5p gi\u1ea3i 4 s\u1ed1( k\u1ebft qu\u1ea3 x\u1ed5 s\u1ed1 gi\u1ea3i 4 v\u00e0 gi\u1ea3i 5) c\u00f3 d\u1ea1ng 2 \u0111\u01a1n v\u1ecb gh\u00e9p n\u00ean gi\u1ea3i 4 s\u1ed1 th\u00ec ch\u1ecdn c\u1eb7p s\u1ed1 \u0111\u00f3 ch\u01a1i li\u00ean ti\u1ebfp 3 ng\u00e0y.<\/p>\n