ode: char">&nbsp;</div>
<div style="layout-grid-mode: char; text-indent: 21pt"><span style="font-size: medium">只有一行，包含一个整数，为最少花费。</span></div></div></div></div></div></div><div class="row"><div class="column"><h4 class="ui top attached block header">样例</h4><div class="ui bottom attached segment font-content"><div style="position: relative; overflow: hidden;"><h4>样例输入</h4><div class="ui existing segment"><pre style="margin-top:0; margin-bottom:0;"><code class=