Submission #1689637

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Source Code Expand

#include <iostream>
using namespace std;

int main() {
    // input
    string sa, sb, sc;
    cin >> sa >> sb >> sc;

    // solve & output
    int a = 0, b = 0, c = 0;
    char turn = 'a';
    while (true) {
        switch (turn) {
        case 'a':
            if (sa.length() == a) {
                cout << "A" << endl;
                return 0;
            }
            turn = sa[a];
            a++;
            break;
        case 'b':
            if (sb.length() == b) {
                cout << "B" << endl;
                return 0;
            }
            turn = sb[b];
            b++;
            break;
        case 'c':
            if (sc.length() == c) {
                cout << "C" << endl;
                return 0;
            }
            turn = sc[c];
            c++;
            break;
        }
    }

    return 0;
}

Submission Info

Judge Result