AtCoder Beginner Contest 342 参加記録

const int INF = 1e9;

int main(void){

  string s; cin >> s;

  map<char, int> m;

  REP(i,s.length()){
    m[s[i]]++;
  }

  char c;
  REP(i,s.length()){
    if(m[s[i]] == 1){
      c = s[i];
    }
  }

  REP(i,s.length()){
    if(s[i] == c){
      cout << i + 1 << endl;
    }
  }

  return 0;

}

int main(void){

  int N; cin >> N;
  vector<int> P(N+1);

  REP(i,N){
    int p; cin >> p;
    P[p] = i;
  }

  int Q; cin >> Q;

  vector<int> A(Q), B(Q);
  REP(i,Q){
    cin >> A[i] >> B[i];
  }

  REP(i,Q){
    int ans = min(P[A[i]], P[B[i]]);
    if(P[A[i]] < P[B[i]]) cout << A[i] << endl;
    else cout << B[i] << endl;
  }


  return 0;

}

int main(void){

  int N; cin >> N;
  string S; cin >> S;

  int Q; cin >> Q;
  vector<char> to(26);

  REP(i,26){
    to[i] = i+'a';
  }

  REP(i,Q){
    char c, d; cin >> c >> d;
    REP(j,26){
      if(to[j] == c){
        to[j] = d;
      }
    }
  }

  REP(i,N){
    cout << to[S[i]-'a'];
  }
  cout << endl;

  return 0;

}