Codeforces Round #485 (Div. 2) A. Infinity Gauntlet

题目连接：

http://codeforces.com/contest/987/problem/A

Description

You took a peek on Thanos wearing Infinity Gauntlet. In the Gauntlet there is a place for six Infinity Gems:

• the Power Gem of purple color,
• the Time Gem of green color,
• the Space Gem of blue color,
• the Soul Gem of orange color,
• the Reality Gem of red color,
• the Mind Gem of yellow color.

Using colors of Gems you saw in the Gauntlet determine the names of absent Gems.

Sample Input

4

red

purple

yellow

orange

Sample Output

2

Space

Time

题意

无限手套有六颗宝石，现在已经有了几种颜色的，问现在缺少哪些能力

题解：

用map暴力处理

代码

#include <bits/stdc++.h>

using namespace std;

map<string, string> m;

int n;

string d;

int main() {

    m.insert(make_pair("red", "Reality"));

    m.insert(make_pair("purple", "Power"));

    m.insert(make_pair("green", "Time"));

    m.insert(make_pair("blue", "Space"));

    m.insert(make_pair("orange", "Soul"));

    m.insert(make_pair("yellow", "Mind"));

    cin >> n;

    for (int i = 0; i < n; i++) {

        cin >> d;

        m.erase(d);

    }

    cout << m.size() << endl;

    for (auto i:m)

        cout << i.second << endl;

}