题目7单选题
在图的邻接表表示中,查找某顶点的所有邻接点的时间复杂度是A. <img src="https://tihai-oss-cloud.itihey.com/img/5769fbdb97e53eb66dbb96a49093b833.png">B. <img src="https://tihai-oss-cloud.itihey.com/img/859c2a4ff6beba7493a41b253c9c836c.png">C. <img src="https://tihai-oss-cloud.itihey.com/img/887e8a887713acbf48aa77c711d2a1d3.png">D. <img src="https://tihai-oss-cloud.itihey.com/img/cb3468b03a09fadcd2b85c422d87c7c4.png">