Submission #1215010

#	Time	Username	Problem	Language	Result	Execution time	Memory
1215010		kunzaZa183	Gap (APIO16_gap)	C++20	100 / 100	47 ms	6932 KiB

gap

#include "gap.h"

#include <bits/stdc++.h>
using namespace std;
using ll = long long;

long long findGap(int T, int N) {
  if (T == 1) {
    set<ll> si;
    ll l = 0, r = 1e18;
    for (int i = 0; i < (N + 1) / 2; i++) {
      ll a, b;
      MinMax(l, r, &a, &b);

      if (a != -1) si.insert(a);
      if (b != -1) si.insert(b);

      l = a + 1, r = b - 1;
    }

    vector<ll> vi;
    for (auto a : si) vi.push_back(a);

    ll maxi = 0;
    for (int i = 1; i < vi.size(); i++) maxi = max(maxi, vi[i] - vi[i - 1]);

    return maxi;
  } else {
    ll mini, maxi;
    MinMax(0, 1e18, &mini, &maxi);

    ll x = (maxi - mini + N - 2) / (N - 1);

    ll curl = mini;

    ll ans = x;

    ll a, b;
    for (ll i = mini; i < maxi; i += x + 1) {
      MinMax(i, i + x, &a, &b);
      if (a != -1) {
        ans = max(ans, a - curl);
        curl = b;
      }
    }

    return ans;
  }
}

• Subtask 1: 30 / 30
• Subtask 2: 70 / 70