C++ exercises and solutions: search item of Queue


Queue

Search item of Queue

Step 6: Searching for an item in the Queue

Another important operation of the Queue is searching for an item. To search for a specific item in the Queue is a sequential process. The comparison starts from the beginning of the list until the target item is found or until the end of the list is reached. Therefore, the firs matched item is returned.

//Searching for an item in the Queue

ListElem *find(int tar){
ListElem *t=pfirst;
int f = 0;
while (t != NULL)
{
if (t->data==tar) { f = 1; break; }
t = t->next;
}

if (f != 0) return t;
else return NULL;
}




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