Function main

STL/unordered_map.cpp:44–74

}

int main()
{
    int a[5] = {1, 2, 3, 4, 5};
	vector<int> nums(a, a + 5);
    // C++11新方式
    for(auto num: nums) {
        cout << num << ' ';
    }
    cout << endl;
    cout << isPossible(nums);
    cout << endl;

    unordered_map<char, int> mp;
    for(int i = 0; i < 5; ++ i) {
        mp['a' + i] = i;
    }
    for (auto i : mp) {
        cout << i.first << "->" << i.second << ' ';
    }
    cout << endl;

    // unordered_map查找某个键或者同级某个键
    cout << "find('a')  " << (*mp.find('a')).first << "->" << (*mp.find('a')).second << endl;
    cout << "count('a') " << mp.count('a') << endl;


    // 初始化unordered_map
    unordered_map<int, int> mpa;
    cout << "test: " << mpa[0] << endl;
    return 0;
}