pr23002.cpp

来自「《标准C++宝典》源码」· C++ 代码 · 共 35 行

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// File Name: pr23002.cpp
////////////////////////////////////////
#include <iostream>
#include <set>
#include <algorithm>

int main()
{
    // Create the set object.
    std::multiset<int, less<int> > intSet;

    // Populate the set with values.
    intSet.insert(10);
    intSet.insert(8);
    intSet.insert(1);
    intSet.insert(3);
    intSet.insert(8);
    intSet.insert(8);
    intSet.insert(5);

    // Display the contents of the set.
    std::cout << "Contents of set: " << std::endl;
    multiset<int, less<int> >::iterator it = intSet.begin();
    for (int x=0; x<intSet.size(); ++x)
        std::cout << *it++ << std::endl;
    std::cout << std::endl;

    // Count the number of 8s in the set.
    int cnt = count(intSet.begin(), intSet.end(), 8);
    std::cout << "Number of 8s = " << cnt;
    
    return 0;
}