數據結構——雙向循環鏈表頭插法建立鏈表

#include<stdio.h> #include<stdlib.h> typedef struct dnode { int id; struct dnode * next; struct dnode * prior; }dnode,*dbllist,*dblnode; int Initlist(dbllist *L) { *L=(dbllist)malloc(sizeof(dnode)); (

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