形的边上，该目标将不会被摧毁。&nbsp;</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>输入文件的第一行为正整数n和正整数R，接下来的n行每行有3个正整数，分别表示xi,yi,vi</p></div></div></div></div></div><div class="row"><div class="column"><h4 class="ui top attached 