attached segment font-content"><div style="position: relative; overflow: hidden;"><div class=content><p>输出一个整数，即配对整数的差的绝对值之和的最小值。如果无法配对，输 出-1。</p></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-