增知益智:上期答案复活节岛上的石像设石像的总数为x,假设x≥17,则我们可设其中连续17尊石像的高度依次为x1至x17米,井用这些数值排一个11×7的数阵: x1 x2 x3 x4 x5 x6 x7x2 x3 x4 x5 x6 x7 x8x3 x4 x5 x6 x7 x8 x9…………………………x10 x11 x12 x13 x14 x15x16x11 x12 x13 x14 x15 x16x17由题目知,任意7尊连续石像 The number of stone statues on the Easter Island is x, assuming that x≥17, we can set the height of successive stone 17 in order of x1 to x17 meters, and use these values ​​to rank an 11 × 7 The matrix: x1 x2 x3 x4 x5 x6 x7x2 x3 x4 x5 x6 x7 x8x3 x4 x5 x6 x7 x8 x9 x10 x11 x12 x13 x14 x15x16x11 x12 x13 x14 x15 x16x17 By topic knowledge, Any 7 consecutive stone figures