To plant trees on a road section of 100 meters, at least how many trees must be planted to ensure that the distance between at least two trees is less than 10 meters.
在100米的路段上植树，至少要植多少棵树，才能保证至少有两棵树之间的距离小于10米．
<gadget id="calculator">100 / 10</gadget>
<output>10</output>

<gadget id="calculator">10 + 1 + 1</gadget>
<output>12</output>

<result>12</result>