Submission #202877

#	Time	Username	Problem	Language	Result	Execution time	Memory
202877		EntityIT	Just Long Neckties (JOI20_ho_t1)	C++14	100 / 100	134 ms	7032 KiB

ho_t1

#include<bits/stdc++.h>

using namespace std;

#define all(x) (x).begin(), (x).end()
#define sz(x) ( (int)(x).size() )
using LL = long long;

template<class T>
inline bool asMn(T &a, const T &b) { return a > b ? a = b, true : false; }
template<class T>
inline bool asMx(T &a, const T &b) { return a < b ? a = b, true : false; }

mt19937 rng( (uint32_t)chrono::steady_clock::now().time_since_epoch().count() );

int main() {
  ios_base::sync_with_stdio(0); cin.tie(0);

  #ifdef FourLeafClover
  freopen("input", "r", stdin);
  #endif // FourLeafCLover

  int n; cin >> n;

  vector<pair<int, int> > a(n + 1);
  for (int i = 0; i < sz(a); ++i) {
    cin >> a[i].first;
    a[i].second = i;
  }
  sort(all(a) );

  vector<int> b(n);
  for (int i = 0; i < sz(b); ++i) cin >> b[i];
  sort(all(b) );

  vector<int> ans(n + 1);

  vector<int> pref(n);
  for (int i = 0; i < sz(pref); ++i) {
    if (i) pref[i] = pref[i - 1];
    asMx(pref[i], max(0, a[i].first - b[i]) );
  }
  vector<int> suff(n);
  for (int i = n - 1; ~i; --i) {
    if (i + 1 < sz(suff) ) suff[i] = suff[i + 1];
    asMx(suff[i], max(0, a[i + 1].first - b[i]) );
  }

  for (int i = 0; i <= n; ++i) {
    if (i) asMx(ans[ a[i].second ], pref[i - 1]);
    if (i < n) asMx(ans[ a[i].second ], suff[i]);
  }

  for (auto i : ans) cout << i << ' ';
  cout << '\n';

  return 0;
}

• Subtask 1: 1 / 1
• Subtask 2: 8 / 8
• Subtask 3: 91 / 91