Every edge of a cube is colored either red or green.In order to have at least one red edge on every face of the cube,find the minimum number of edges that must be colored red.

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Every edge of a cube is colored either red or green.In order to have at least one red edge on every face of the cube,find the minimum number of edges that must be colored red.

Every edge of a cube is colored either red or green.In order to have at least one red edge on every face of the cube,find the minimum number of edges that must be colored red.
Every edge of a cube is colored either red or green.In order to have at least one red edge on every face of the cube,find the minimum number of edges that must be colored red.

Every edge of a cube is colored either red or green.In order to have at least one red edge on every face of the cube,find the minimum number of edges that must be colored red.
立方体的每一个边缘是红色或绿色.使立方体的每个面至少有一个红边,计算出红边的最小数量

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