题解 | 斗兽棋

#include <iostream>
#include <unordered_map>
#include <string>
using namespace std;

int main() {
    string s1, s2;
    cin >> s1 >> s2;
    unordered_map<string, string> compare = {
        {"elephant", "tiger"},
        {"tiger", "cat"},
        {"cat", "mouse"},
        {"mouse", "elephant"}
    };
    if (compare[s1] == s2) {
        cout << "win";
    } else if (compare[s2] == s1) {
        cout << "lose";
    } else {
        cout << "tie";
    }
}

经典的使用哈希表制定规则的例题。