There are some lines connected between 100 points, and any two points can be connected with at most one line. If no triangle with 3 of these points as vertices is connected, how many lines can be connected.
在100个点间连有一些线，任两点至多连一条线，如果没有连出以这些点中的3个点为顶点的三角形，那么可以连多少条线．
<gadget id="calculator">100 - 1</gadget>
<output>99</output>

<result>99</result>