�Bessie至少攀爬多少次.这里两个点的距离都是欧几里得距离</span></p></div></div></div></div><div class="row"><div class="column"><h4 class="ui top attached block header">输入格式</h4><div class="ui bottom attached segment font-content"><div style="position: relative; overflow: hidden;"><div class=content><p><span style="font-size: medium">* Line 1: Two space-separated integers, H and F. </span></p>
<p><span style="font-size: medium">* Lines 2..F+1: Each line contains two space-separ