A road is 100 meters long, and one tree is planted every 4 meters on one side of the road (both ends are planted), how many trees can be planted in total.
一条路长100米，在这条路的一边每隔4米栽1棵树(两端都栽)，共可以栽多少棵树．
<gadget id="calculator">100 / 4</gadget>
<output>25</output>

<gadget id="calculator">25 + 1</gadget>
<output>26</output>

<result>26</result>