nw4869 2013-07-15 09:47:00
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#include <stdio.h>
#include <string.h>
int main()
{
char command[100];
char URL[500][200];
int tot=1;
int point=1;
strcpy(URL[1],"http://www.acm.org/");
do{
scanf("%s",command);
if (strcmp(command,"VISIT")==0)
{
scanf("%s",URL[++point]);
tot=point;
printf("%s\n",URL[tot]);
}
if (strcmp(command,"BACK")==0)
if (point > 1)
printf("%s\n",URL[--point]);
else printf("Ignored\n");
if (strcmp(command,"FORWARD") == 0)
if (point < tot)
printf("%s\n",URL[++point]);
else printf("Ignored\n");
}while (strcmp(command,"QUIT"));
return 0;
}