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=====团队训练===== ^ 比赛时间 ^ 比赛名称 ^ 当场过题数 ^ 至今过题数 ^ 总题数 ^ 排名 ^ |2020-07-25| [[2020牛客暑期多校第五场]] | 5 | 10 | 11 |87/1116| |2020-07-27| [[2020牛客暑期多校第六场]] | 6 | 8 | 11 |64/1019| |2020-07-29| [[2020HDU暑期多校第二场]] | 6 | 11 | 12 |N/A| ===== 本周推荐 ===== ====2sozx==== ===CF 1388 E=== * 分类：计算几何 * 题意：给定 $n$ 条平行与 $x$ 轴的线段并且 $y_i>0$ ，现在选择一个向量，将这些线段沿着向量平移到 $x$ 轴，期间线段不能有相交，顶点相交除外，问最后平移到 $x$ 轴后左右端点距离最小值是多少。$(n\le2000,-10^6\le xl_i