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2003年高考数学新课程卷第15题:某城市在中心广场建造一个花圃,花圃分为6个部分(如图1).现在要栽种4种颜色的花,每部分栽种一种且相邻部分不能栽种同样颜色的花,不同栽种方法有种.(以数字作答)分析:从图1可知,花圃中区域“1”与其它五块区域都相邻,而这五块区域又顺次相邻,因而
The new mathematics examination paper for college entrance examination in 2003 Item 15: A city in the center square to build a flower garden, flower garden is divided into 6 parts (Figure 1). Now to plant four kinds of flowers, each part of a planted and adjacent parts It is not possible to plant flowers of the same color. There are different methods for planting. (Analyze by numbers) Analysis: As can be seen from Figure 1, the area “1” in the flower garden is adjacent to the other five areas, and the five areas are successively adjacent. ,thus