Question

如何在C++ STL的queue当中查找一个元素？

声明为queue<int> q；待查找元素声明为int num；

Answer 1

// deque::begin
#include <iostream>
#include <deque>
using namespace std;

int main ()
{
deque<int> mydeque;
deque<int>::iterator it;
int num=3;

for (int i=1; i<=5; i++) mydeque.push_back(i);

cout << "mydeque contains:";

it = mydeque.begin();

while (it != mydeque.end())
if(*it == num)
cout << " " << *it++;

cout << endl;

return 0;
}