#include "bits/stdc++.h"

using namespace std;

int solve(int dist) {
  int minspeed;
  cin >> minspeed;
  int lhstravel = 0;
  int rhstravel = 0;
  int timeused = 0;
  for(int currspeed = 1;; currspeed++) {
    lhstravel += currspeed;
    timeused++;
    if(lhstravel + rhstravel >= dist) return timeused;
    if(currspeed >= minspeed) {
      rhstravel += currspeed;
      timeused++;
      if(lhstravel + rhstravel >= dist) return timeused;
    }
  }
}

int main() {
  int k, n;
  cin >> k >> n;
  for(int i = 0; i < n; i++) {
    cout << solve(k) << endl;
  }
}