在洛谷上提交 cf 的题目时，出现了 cURLerror28:Operationtimedoutafter3000millisecondswith0bytesreceived(seehttps://curl.haxx.se/libcurl/c/libcurl−errors.html)cURL error 28: Operation timed out after 3000 milliseconds with 0 bytes received (see https://curl.haxx.se/libcurl/c/libcurl-errors.html)cURLerror28:Operationtimedoutafter3000millisecondswith0bytesreceived(seehttps://curl.haxx.se/libcurl/c/libcurl−errors.html) 并且 UKE 了。
请问这是什么意思？
