C\u00e1ch t\u00ednh \u0111\u1ea7u \u0111u\u00f4i s\u1ed1 \u0111\u1ec1<\/strong><\/h2>\n\n\n\nC\u00e1ch \u0111\u00e1nh \u0111\u1ec1 \u0111\u1ea7u \u0111u\u00f4i<\/strong> s\u1ed1 \u0111\u1ec1 b\u1ea1n s\u1ebd s\u1eed d\u1ee5ng 2 s\u1ed1 cu\u1ed1i trong gi\u1ea3i \u0111\u1eb7c bi\u1ec7t \u0111\u00e3 v\u1ec1 trong ng\u00e0y h\u00f4m \u0111\u00f3. S\u1ed1 h\u00e0ng ch\u1ee5c s\u1ebd l\u00e0 \u0111\u1ea7u \u0111\u1ec1 c\u00f2n h\u00e0ng \u0111\u01a1n v\u1ecb l\u00e0 \u0111u\u00f4i \u0111\u1ec1. \u0110\u00e1nh \u0111\u1ec1 \u0111\u1ea7u \u0111u\u00f4i ng\u01b0\u1eddi ch\u01a1i ph\u1ea3i x\u00e1c \u0111\u1ecbnh \u0111\u01b0\u1ee3c \u0111\u1ea7u ho\u1eb7c \u0111u\u00f4i \u0111\u1ec1 v\u1ec1 trong ng\u00e0y l\u00e0 bao nhi\u00eau. V\u00ed d\u1ee5 k\u1ebft qu\u1ea3 x\u1ed5 s\u1ed1 c\u1ee7a ng\u00e0y h\u00f4m nay l\u00e0 xxxAB th\u00ec AB ch\u00ednh l\u00e0 s\u1ed1 \u0111\u1ec1. V\u00e0 \u0111\u1ea7u \u0111\u1ec1 l\u00e0 s\u1ed1 A, \u0111u\u00f4i \u0111\u1ec1 l\u00e0 s\u1ed1 B. B\u1ea1n c\u1ea7n ph\u1ea3i x\u00e1c \u0111\u1ecbnh \u0111\u01b0\u1ee3c \u0111\u00fang A v\u1ec1 \u0111\u1ea7u hay B v\u1ec1 cu\u1ed1i. <\/p>\n\n\n\nV\u00ed d\u1ee5: K\u1ebft qu\u1ea3 x\u1ed5 s\u1ed1 ng\u00e0y h\u00f4m nay v\u1ec1 38732 n\u1ebfu b\u1ea1n d\u1ef1 \u0111o\u00e1n \u0111\u01b0\u1ee3c \u0111\u1ea7u 3 s\u1ebd v\u1ec1 t\u1ee9c l\u00e0 b\u1ea1n \u0111\u00e3 tr\u00fang \u0111\u1ea7u \u0111\u1ec1. T\u01b0\u01a1ng t\u1ef1 n\u1ebfu d\u1ef1 \u0111o\u00e1n \u0111\u00fang \u0111u\u00f4i \u0111\u1ec1 l\u00e0 2 th\u00ec s\u1ebd tr\u00fang s\u1ed1 c\u1ee7a ng\u00e0y h\u00f4m \u0111\u00f3. <\/p>\n\n\n\n