时间限制: 2s
内存限制: 192MB 提交: 1647 解决: 678
题目描述
输入两个点的坐标，即p1 = (x1, y1)和p2=(x2, y2)，求过这两个点的直线的斜率。如果斜率为无穷大输出“INF”。
输出格式
两个点组成直线的斜率，无穷大则输出“INF”。
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