當我試圖通過Netbeans的運行Tomcat的,我得到: Deployment error: Starting of Tomcat failed, /Users/Dropbox/apache-tomcat-8.0.23/bin/catalina.sh and related scripts are executable. 行的錯誤引導我的是: < nbdeploy clientUrlPart="
我的問題如下: 鑑於三聯列表,它們被存儲在一個數據結構,稱爲hash_heap(我不知道的名稱,只是表示它應該是散列表和堆的混合)。我希望數據結構提供以下方法: index_by_first_col(key) // the method could help find the a triple stored in it by matching the first column. It expect