L\u00f4 d\u00e0n l\u00e0 g\u00ec?<\/b><\/h2>\n
C\u00e1ch ch\u01a1i l\u00f4 d\u00e0n \u0111\u1ec1 d\u1ec5 tr\u00fang<\/em><\/p>\n L\u00f4 d\u00e0n hi\u1ec3u n\u00f4m na l\u00e0 \u0111\u00e1nh nhi\u1ec1u con l\u00f4 m\u00e0 b\u1ea1n cho r\u1eb1ng c\u00f3 t\u1ec9 l\u1ec7 v\u1ec1 cao nh\u1ea5t. L\u00f4 d\u00e0n th\u01b0\u1eddng bao g\u1ed3m t\u1eeb 4 con tr\u1edf l\u00ean, v\u00e0 g\u1eb7p nhi\u1ec1u nh\u1ea5t l\u00e0 nh\u1eefng c\u1eb7p song th\u1ee7 l\u00f4 c\u00f3 d\u1ea1ng AB BA, v\u00ed d\u1ee5 : 12 21 45 54.<\/p>\n Ch\u01a1i l\u00f4 d\u00e0n l\u00e0 m\u1ed9t ph\u01b0\u01a1ng ph\u00e1p ch\u01a1i an to\u00e0n. Tuy \u0103n \u00edt h\u01a1n nhi\u1ec1u so v\u1edbi vi\u1ec7c ch\u1ec9 ch\u01a1i 1 2 con l\u00f4, nh\u01b0ng n\u1ebfu b\u1ea1n mu\u1ed1n b\u1ea3o to\u00e0n s\u1ed1 v\u1ed1n m\u1ed9t c\u00e1ch t\u1ed1i \u01b0u th\u00ec \u0111\u00e2y ch\u00ednh l\u00e0 l\u1ef1a ch\u1ecdn h\u1ee3p l\u00fd.<\/p>\n Gi\u1ea3 s\u1eed b\u1ea1n ch\u1ecdn ch\u01a1i l\u00f4 d\u00e0n 4s (4 con) \u0111\u00e0i mi\u1ec1n b\u1eafc v\u1edbi s\u1ed1 \u0111i\u1ec3m c\u01b0\u1ee3c l\u00e0 10 \u0111i\u1ec3m, s\u1ed1 v\u1ed1n ph\u1ea3i b\u1ecf ra l\u00e0 4x10x27=1080\u0111, t\u01b0\u01a1ng \u0111\u01b0\u01a1ng v\u1edbi 1 tri\u1ec7u 80 ng\u00e0n vnd. V\u1edbi t\u1ec9 l\u1ec7 1 \u0103n 99 n\u1ebfu b\u1ea1n \u0103n \u0111\u01b0\u1ee3c 2 nh\u00e1y trong d\u00e0n l\u00f4 \u0111\u00f3, s\u1ed1 ti\u1ec1n \u0103n \u0111\u01b0\u1ee3c s\u1ebd l\u00e0 (2x10x99)-1080(v\u1ed1n) = 900 \u0111i\u1ec3m, t\u01b0\u01a1ng \u0111\u01b0\u01a1ng v\u1edbi 900 ng\u00e0n vnd. Ch\u1eafc ch\u1eafn l\u00e0 cao h\u01a1n r\u1ea5t nhi\u1ec1u n\u1ebfu ch\u01a1i l\u00f4 qua c\u00f2 \u1edf ngo\u00e0i.<\/p>\n M\u1eb7c d\u00f9 v\u1eady v\u1eabn c\u00f3 nh\u1eefng h\u1ea1n ch\u1ebf nh\u1ea5t \u0111\u1ecbnh khi \u00e1p d\u1ee5ng l\u1ed1i ch\u01a1i n\u00e0y. Hi\u1ec3n nhi\u00ean khi ch\u1ecdn \u0111\u00e1nh nhi\u1ec1u con l\u00f4 m\u1ed9t l\u00fac, b\u1ea1n s\u1ebd ph\u1ea3i chu\u1ea9n b\u1ecb m\u1ed9t s\u1ed1 v\u1ed1n kh\u00e1 l\u1edbn. M\u1ed9t trong nh\u1eefng c\u01a1n \u00e1c m\u1ed9ng kinh kh\u1ee7ng nh\u1ea5t \u0111\u1ed1i v\u1edbi d\u00e2n ch\u01a1i l\u00f4 \u0111\u00f3 l\u00e0 c\u1ea3 d\u00e0n l\u00f4 kh\u00f4ng v\u1ec1, hay c\u00f2n g\u1ecdi l\u00e0 d\u00e0n l\u00f4 tr\u01b0\u1ee3t. Th\u1eed t\u01b0\u1edfng t\u01b0\u1ee3ng n\u1ebfu b\u1ea1n ch\u01a1i d\u00e0n l\u00f4 4s mi\u1ec1n b\u1eafc v\u1edbi s\u1ed1 \u0111i\u1ec3m c\u01b0\u1ee3c b\u1ecf ra l\u00e0 10\u0111, nh\u01b0ng c\u1ea3 4 con \u0111\u1ec1u kh\u00f4ng v\u1ec1 l\u1ea5y 1 nh\u00e1y, th\u00ec s\u1ebd m\u1ea5t \u0111i to\u00e0n b\u1ed9 s\u1ed1 v\u1ed1n b\u1ecf ra (1 tri\u1ec7u 80 ng\u00e0n vnd).<\/p>\n \u0110\u1ec3 tr\u00e1nh tr\u01b0\u1eddng h\u1ee3p thua c\u1ea3 d\u00e0n l\u00f4, thay v\u00ec ch\u01a1i theo b\u1ea1n b\u00e8, theo c\u1ea3m t\u00ednh, ch\u00fang ta n\u00ean t\u00ecm hi\u1ec3u k\u1ef9 c\u00e0ng nh\u1eefng con s\u1ed1 m\u00e0 m\u00ecnh mu\u1ed1n ch\u01a1i. C\u00f3 kh\u00e1 nhi\u1ec1u c\u00e1ch hi\u1ec7u qu\u1ea3 \u0111\u1ec3 t\u00ednh ra d\u00e0n l\u00f4. Ngo\u1ea1i tr\u1eeb vi\u1ec7c ch\u01a1i nh\u1eefng con s\u1ed1 m\u00e0 b\u1ea1n th\u00edch, d\u01b0\u1edbi \u0111\u00e2y m\u00ecnh xin tr\u00ecnh b\u00e0y nh\u1eefng ph\u01b0\u01a1ng ph\u00e1p t\u1ea1o d\u00e0n v\u00e0 b\u1eafc c\u1ea7u l\u00f4 hi\u1ec7u qu\u1ea3.<\/p>\n \u0110\u00e2y l\u00e0 ph\u01b0\u01a1ng ph\u00e1p m\u00e0 m\u00ecnh mu\u1ed1n nh\u1eafc \u0111\u1ebfn \u0111\u1ea7u ti\u00ean b\u1edfi x\u00e1c su\u1ea5t v\u1ec1 cao v\u00e0 kh\u00f4ng g\u00e2y hoang mang khi ch\u01a1i l\u00f4 d\u00e0n t\u1ea1o b\u1eb1ng \u1ee9ng d\u1ee5ng. B\u1eafc c\u1ea7u, hay c\u00f2n g\u1ecdi l\u00e0 soi c\u1ea7u, l\u00e0 ph\u01b0\u01a1ng ph\u00e1p d\u1ef1a tr\u00ean k\u1ebft qu\u1ea3 x\u1ed5 s\u1ed1 c\u1ee7a nh\u1eefng ng\u00e0y g\u1ea7n nh\u1ea5t. Ph\u01b0\u01a1ng ph\u00e1p n\u00e0y v\u1eadn d\u1ee5ng k\u1ef9 n\u0103ng ph\u00e2n t\u00edch, ch\u1ecdn l\u1ef1a v\u00e0 cu\u1ed1i c\u00f9ng cho ra k\u1ebft qu\u1ea3. N\u00f3 t\u1ed1n kh\u00e1 nhi\u1ec1u th\u1eddi gian v\u00e0 y\u00eau c\u1ea7u ng\u01b0\u1eddi ph\u00e2n t\u00edch ph\u1ea3i tinh m\u1eaft l\u1ef1a s\u1ed1.<\/p>\n Hai ph\u01b0\u01a1ng ph\u00e1p v\u1eeba n\u00eau tr\u00ean l\u00e0 hai ph\u01b0\u01a1ng ph\u00e1p \u0111\u00f2i h\u1ecfi s\u1ef1 tinh to\u00e1n v\u00e0 tinh m\u1eaft, v\u1eady c\u00f3 ph\u01b0\u01a1ng th\u1ee9c n\u00e0o c\u00f3 th\u1ec3 l\u1ea5y d\u00e0n m\u00e0 kh\u00f4ng \u0111\u00f2i h\u1ecfi s\u1ef1 t\u00ednh toan kh\u00f4ng? C\u00e2u tr\u1ea3 l\u1eddi l\u00e0 c\u00f3. \u0110\u00f3 l\u00e0 nh\u1eefng d\u00e0n c\u00f3 s\u1eb5n trong t\u1ef1 nhi\u00ean.<\/p>\n C\u00e1ch \u0111\u00e1nh l\u00f4 d\u00e0n hi\u1ec7u qu\u1ea3 nh\u1ea5t<\/em><\/p>\n C\u00e1c l\u00f4 d\u00e0n theo b\u1ed9 s\u1ed1 n\u00e0y l\u00e0 t\u1ed5ng h\u1ee3p c\u00e1c b\u1ed9 d\u00e0n, th\u01b0\u1eddng th\u00ec khi b\u1ea1n th\u1ea5y \u0111\u1ec1 v\u1ec1 ng\u00e0y h\u00f4m tr\u01b0\u1edbc l\u00e0 b\u1ed9 n\u00e0o trong c\u00e1c b\u1ed9 \u0111\u00f3 th\u00ec nh\u1eefng ng\u00e0y ti\u1ebfp theo c\u00f3 th\u1ec3 nu\u00f4i l\u00f4 theo n\u00f3, c\u1ee5 th\u1ec3:<\/p>\n Nh\u01b0 \u0111\u00e3 n\u00f3i trong nhi\u1ec1u b\u00e0i, \u0111\u00f4i khi ta th\u01b0\u1eddng t\u00ednh \u0111\u01b0\u1ee3c c\u1ea7u ch\u1ea1m \u0111\u1ec3 nu\u00f4i d\u00e0n l\u00f4, v\u00ed d\u1ee5 nh\u01b0 c\u1ea7u ch\u1ea1m s\u1ed1 gi\u1eefa gi\u1ea3i \u0111\u1eb7c bi\u1ec7t ng\u00e0y th\u1ee9 4, hay c\u1ea7u ch\u1ea1m \u0111\u1ea7u \u0111u\u00f4i \u0111\u1ec1 v\u1ec1 ng\u00e0y th\u1ee9 5,\u2026 D\u1ef1a v\u00e0o c\u00e1c d\u1ea5u hi\u1ec7u \u0111\u1ec1 l\u00f4 n\u00e0y b\u1ea1n c\u00f3 th\u1ec3 nu\u00f4i d\u00e0n c\u1ea7u MB ch\u1ea1m c\u1ee7a n\u00f3 \u0111\u1ec3 c\u00f3 t\u1ef7 l\u1ec7 tr\u00fang s\u1ed1 cao:<\/p>\n <\/main><\/div>\n \u00a0C\u1ea6U LOTO CH\u1ed0T S\u1ed0 B\u1ea0CH TH\u1ee6 L\u00d4 MI\u1ec0N B\u1eaeC<\/span><\/strong><\/a><\/p>\n \u00a0C\u1ea6U LOTO CH\u1ed0T S\u1ed0 B\u1ea0CH TH\u1ee6 L\u00d4 2 NH\u00c1Y MI\u1ec0N B\u1eaeC<\/span><\/strong><\/a><\/p>\n \u00a0C\u1ea6U LOTO CH\u1ed0T S\u1ed0 SONG TH\u1ee6 L\u00d4 MI\u1ec0N B\u1eaeC<\/span><\/strong><\/a><\/p>\n \u00a0C\u1ea6U LOTO CH\u1ed0T S\u1ed0 B\u1ea0CH TH\u1ee6 L\u00d4 K\u00c9P MI\u1ec0N B\u1eaeC<\/span><\/strong><\/a><\/p>\n \u00a0C\u1ea6U LOTO CH\u1ed0T S\u1ed0 SONG TH\u1ee6 L\u00d4 K\u00c9P MI\u1ec0N B\u1eaeC<\/span><\/strong><\/a><\/p>\n \u00a0C\u1ea6U LOTO CH\u1ed0T S\u1ed0 B\u1ea0CH TH\u1ee6 \u0110\u1ec0 MI\u1ec0N B\u1eaeC<\/span><\/strong><\/a><\/p>\n \u00a0C\u1ea6U LOTO CH\u1ed0T S\u1ed0 SONG TH\u1ee6 \u0110\u1ec0 MI\u1ec0N B\u1eaeC<\/span><\/strong><\/a><\/p>\n \u00a0C\u1ea6U LOTO CH\u1ed0T S\u1ed0 D\u00c0N \u0110\u1ec0 4 S\u1ed0 MI\u1ec0N B\u1eaeC<\/span><\/strong><\/a><\/p>\n \u00a0C\u1ea6U LOTO CH\u1ed0T S\u1ed0 D\u00c0N \u0110\u1ec0 6 S\u1ed0 MI\u1ec0N B\u1eaeC<\/span><\/strong><\/a><\/p>\n \u00a0C\u1ea6U LOTO CH\u1ed0T S\u1ed0 D\u00c0N \u0110\u1ec0 8 S\u1ed0 MI\u1ec0N B\u1eaeC<\/span><\/strong><\/a><\/p>\n \u00a0C\u1ea6U LOTO CH\u1ed0T S\u1ed0 D\u00c0N \u0110\u1ec0 10 S\u1ed0 MI\u1ec0N B\u1eaeC<\/span><\/strong><\/a><\/p>\n \u00a0C\u1ea6U LOTO CH\u1ed0T S\u1ed0 D\u00c0N L\u00d4 4 S\u1ed0 MI\u1ec0N B\u1eaeC<\/span><\/strong><\/a><\/p>\n \u00a0C\u1ea6U LOTO CH\u1ed0T S\u1ed0 D\u00c0N L\u00d4 6 S\u1ed0 MI\u1ec0N B\u1eaeC<\/span><\/strong><\/a><\/p>\n \u00a0C\u1ea6U LOTO CH\u1ed0T S\u1ed0 D\u00c0N L\u00d4 8 S\u1ed0 MI\u1ec0N B\u1eaeC<\/span><\/strong><\/a><\/p>\n \u00a0C\u1ea6U LOTO CH\u1ed0T S\u1ed0 D\u00c0N L\u00d4 XI\u00caN 2 MI\u1ec0N B\u1eaeC<\/span><\/strong><\/a><\/p>\n \u00a0C\u1ea6U LOTO CH\u1ed0T S\u1ed0 D\u00c0N L\u00d4 XI\u00caN 3 MI\u1ec0N B\u1eaeC<\/span><\/strong><\/a><\/p>\n \u00a0C\u1ea6U LOTO CH\u1ed0T S\u1ed0 D\u00c0N L\u00d4 XI\u00caN 4 MI\u1ec0N B\u1eaeC<\/span><\/strong><\/a><\/p>\n \u00a0C\u1ea6U LOTO CH\u1ed0T S\u1ed0 3 C\u00c0NG MI\u1ec0N B\u1eaeC<\/span><\/strong><\/a><\/p>\n \u00a0C\u1ea6U LOTO CH\u1ed0T S\u1ed0 D\u00c0N 3 C\u00c0NG 2 S\u1ed0 MI\u1ec0N B\u1eaeC<\/span><\/strong><\/a><\/p>\n \u00a0C\u1ea6U LOTO CH\u1ed0T S\u1ed0 D\u00c0N L\u00d4 10 S\u1ed0 MI\u1ec0N B\u1eaeC<\/span><\/strong><\/a><\/p>\n \u00a0C\u1ea6U LOTO CH\u1ed0T S\u1ed0 \u0110\u1ec0 \u0110\u1ea6U \u0110U\u00d4I MI\u1ec0N B\u1eaeC<\/span><\/strong><\/a><\/p>\n \u00a0C\u1ea6U LOTO CH\u1ed0T S\u1ed0 X\u1ec9u Ch\u1ee7 MI\u1ec0N NAM<\/span><\/strong><\/a><\/p>\n \u00a0C\u1ea6U LOTO CH\u1ed0T S\u1ed0 GI\u1ea2I \u0110\u1eb6C BI\u1ec6T MI\u1ec0N NAM<\/span><\/strong><\/a><\/p>\n \u00a0C\u1ea6U LOTO CH\u1ed0T S\u1ed0 GI\u1ea2I 8 MI\u1ec0N NAM<\/span><\/strong><\/a><\/p>\n \u00a0C\u1ea6U LOTO CH\u1ed0T S\u1ed0 BAO L\u00d4 MI\u1ec0N NAM<\/span><\/strong><\/a><\/p>\n \u00a0C\u1ea6U LOTO CH\u1ed0T S\u1ed0 C\u1eb7p X\u1ec9u Ch\u1ee7 MI\u1ec0N NAM<\/span><\/strong><\/a><\/p>\n \u00a0C\u1ea6U LOTO CH\u1ed0T S\u1ed0 SONG TH\u1ee6 L\u00d4 MI\u1ec0N NAM<\/span><\/strong><\/a><\/p>\n \u00a0C\u1ea6U LOTO CH\u1ed0T S\u1ed0 \u0110\u1ea6U \u0110U\u00d4I GI\u1ea2I 8 MI\u1ec0N NAM<\/span><\/strong><\/a><\/p>\n \u00a0C\u1ea6U LOTO CH\u1ed0T S\u1ed0 \u0110\u1ea6U \u0110U\u00d4I \u0110\u1eb6C BI\u1ec6T MI\u1ec0N NAM<\/span><\/strong><\/a><\/p>\n \u00a0C\u1ea6U LOTO CH\u1ed0T S\u1ed0 L\u00d4 3 S\u1ed0 MI\u1ec0N NAM<\/span><\/strong><\/a><\/p>\n \u00a0C\u1ea6U LOTO CH\u1ed0T S\u1ed0 X\u1ec9u Ch\u1ee7 MI\u1ec0N TRUNG<\/strong><\/a><\/p>\n \u00a0C\u1ea6U LOTO CH\u1ed0T S\u1ed0 GI\u1ea2I \u0110\u1eb6C BI\u1ec6T MI\u1ec0N TRUNG<\/strong><\/a><\/p>\n \u00a0C\u1ea6U LOTO CH\u1ed0T S\u1ed0 TO GI\u1ea2I 8 MI\u1ec0N TRUNG<\/strong><\/a><\/p>\n \u00a0C\u1ea6U LOTO CH\u1ed0T S\u1ed0 BAO L\u00d4 MI\u1ec0N TRUNG<\/strong><\/a><\/p>\n \u00a0C\u1ea6U LOTO CH\u1ed0T S\u1ed0 C\u1eb7p X\u1ec9u Ch\u1ee7 MI\u1ec0N TRUNG<\/strong><\/a><\/p>\n \u00a0C\u1ea6U LOTO CH\u1ed0T S\u1ed0 SONG TH\u1ee6 L\u00d4 MI\u1ec0N TRUNG<\/strong><\/a><\/p>\n \u00a0C\u1ea6U LOTO CH\u1ed0T S\u1ed0 \u0110\u1ea6U \u0110U\u00d4I GI\u1ea2I 8 MI\u1ec0N TRUNG<\/strong><\/a><\/p>\nL\u00e0m th\u1ebf n\u00e0o \u0111\u1ec3 t\u1ea1o m\u1ed9t d\u00e0n l\u00f4?<\/b><\/h2>\n
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C\u00e1ch ch\u01a1i l\u00f4 d\u00e0n theo b\u1ed9 s\u1ed1<\/b><\/h2>\n
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Nu\u00f4i l\u00f4 d\u00e0n hi\u1ec7u qu\u1ea3 theo c\u1ea7u ch\u1ea1m<\/b><\/h2>\n
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\u00a0\u00a0<\/span>C\u1ea6U CAO C\u1ea4P MI\u1ec0N B\u1eaeC <\/span>\u00a0<\/span><\/strong><\/h3>\n
\u00a0C\u1ea6U CAO C\u1ea4P MI\u1ec0N B\u1eaeC V\u00cdP\u00a0<\/strong><\/h4>\n
\u00a0<\/span>C\u1ea6U CAO C\u1ea4P MI\u1ec0N NAM V\u00cdP<\/span>\u00a0<\/span><\/strong><\/h3>\n
\u00a0C\u1ea6U CAO C\u1ea4P MI\u1ec0N TRUNG V\u00cdP\u00a0<\/strong><\/h4>\n