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  • 9.优先队列,priority_queue

     1 #include <iostream>
     2 #include <queue>
     3 #include <deque>
     4 #include <list>
     5 using namespace std;
     6 
     7 
     8 void main1()
     9 {
    10     //优先队列
    11     priority_queue<int> myq;
    12     myq.push(1);
    13     myq.push(2);
    14     myq.push(3);
    15     myq.push(4);
    16 
    17     while(!myq.empty())
    18     {
    19         cout << myq.top() << endl;
    20         myq.pop();
    21     }
    22     cin.get();
    23 }
    24 
    25 struct getmoney
    26 {
    27     char *com;
    28     int money;
    29 };
    30 
    31 struct lessX
    32 {
    33     bool operator()(struct getmoney &m1, struct getmoney &m2)
    34     {
    35         //return m1.money < m2.money;
    36         if (strcmp(m1.com, m2.com) >= 0)
    37         {
    38             return true;
    39         }
    40         else
    41         {
    42             return false;
    43         }
    44     }
    45 };
    46 
    47 void main()
    48 {
    49     //优先队列,采用deque方式容易插入
    50     priority_queue<getmoney, deque<getmoney>,lessX> myq;
    51     getmoney getm[5] = { {"Google",30000},{"baidu",20000},{"360",15000},{"sina",10000},{"tecent",18000} };
    52     for (auto i : getm)
    53     {
    54         myq.push(i);
    55     }
    56     while (!myq.empty())
    57     {
    58         cout << myq.top().com << "  " << myq.top().money << endl;
    59         myq.pop();
    60     }
    61     cin.get();
    62 }
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  • 原文地址:https://www.cnblogs.com/xiaochi/p/8626698.html
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