https://bgk-photo.cdn.bcebos.com/0b7b02087bf40ad136233282472c11dfa8ecce88.jpg如图所示,在https://bgk-photo.cdn.bcebos.com/21a4462309f79052f5d8b25f1cf3d7ca7acbd588.jpg中,https://bgk-photo.cdn.bcebos.com/d62a6059252dd42aaacef4ca133b5bb5c8eab888.jpg,点https://bgk-photo.cdn.bcebos.com/9d82d158ccbf6c815adfd989ac3eb13532fa40e3.jpg在线段https://bgk-photo.cdn.bcebos.com/6609c93d70cf3bc76fe8388dc100baa1cc112ae3.jpg上移动(不含端点),若https://bgk-photo.cdn.bcebos.com/f2deb48f8c5494ee34e5fa783df5e0fe98257e88.jpg,则https://bgk-photo.cdn.bcebos.com/79f0f736afc3793123837348fbc4b74542a911e3.jpg ,https://bgk-photo.cdn.bcebos.com/7e3e6709c93d70cfd43d5f6ce8dcd100bba12b88.jpg的最小值是 。