Submission #1516058

---

Source Code Expand

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

int main(){
  string a, b, c;
  int aa, bb, cc;
  aa = bb = cc = 0;
  cin >> a >> b >> c;
  char key = 'a';
  while(1){
    if(aa == a.size() + 1){
      cout << 'A' << endl;
      return 0;
    }else if(bb == b.size() + 1){
      cout << 'B' << endl;
      return 0;
    }else if(cc == c.size() + 1){
      cout << 'C' << endl;
      return 0;
    }
    if(key == 'a'){
      key = a[aa];
      aa++;
    }
    if(key == 'b'){
      key = b[bb];
      bb++;
    }
    if(key == 'c'){
      key = c[cc];
      cc++;
    }
  }
}

Submission Info

Judge Result