There are 100 football teams, and there will be a knockout match in pairs, and finally there will be a champion. How many games will there be in total?
有100個足球隊，兩兩進行淘汰賽，最後產生一個冠軍，一共要賽多少場？
<gadget id="calculator">100 - 1</gadget>
<output>99</output>

<result>99</result>