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Ho Chi Minh City, Vietnam

#include<stdio.h> #include<conio.h> #include<stdlib.h> typedef struct tagnode { int info; tagnode *next; }node; typedef node *list; list dau,cuoi; node *khoitaonode(int gt) { node *x; x=(node*)malloc(sizeof(node)); if(x==NULL) { printf("Deo co bo nho."); exit; } x->info=gt; x->next=NULL; return x; } node *timkiem(list &dau, int k) { node *x; x=dau; while((x!=NULL)&&(x->info!=k)) x=x->next; return x; } void themdau(list &dau, list &cuoi, node *ptu) { if(dau==NULL) cuoi=ptu; else ptu->next=dau; dau=ptu; } void themcuoi(list &dau, list &cuoi, node *ptu) { if(dau==NULL) dau=ptu; else cuoi->next=ptu; cuoi=ptu; } void thembatki(int k, node *ptu) { node *x=d