AtCoder Beginner Contest 343 参加記録

int main(void){

  int A, B; cin >> A >> B;

  REP(i,10){
    if(i != (A+B)){
      cout << i << endl;
      return 0;
    }

  }


  return 0;

}

int main(void){

  int N; cin >> N;

  REP(i,N){
    REP(j,N){
      int A; cin >> A;
      if(A == 1) cout << j + 1 << ' ';
    }
    cout << endl;
  }


  return 0;

}

bool isOk(ll k){
  string s = to_string(k);

  REP(i,s.length()/1){
    if(s[i] != s[s.length()-1-i]) return false;
  }

  return true;

}

int main(void){

  ll N; cin >> N;


  ll ans = 0;
  for(ll x=0;(x*x*x)<=N;x++){
    ll k = x*x*x;

    if(isOk(k)) ans = max(ans, k);
  }

  cout << ans << endl;

  return 0;

}

int main(void){

  int N, T; cin >> N >> T;

  vector<ll> p(N+1);
  map<ll, int> m;

  m[0] = N;

  REP(i,T){
    int A, B; cin >> A >> B;
    ll prev = p[A];
    ll now = B + p[A];
    p[A] = now;

    m[prev]--;
    m[now]++;

    if(m[prev] == 0){
      m.erase(prev);

    }

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




  return 0;

}