제출 #447882

#	제출 시각UTC-0	아이디	문제	언어	결과	실행 시간	메모리
447882	2021-07-28 00:00:29	flappybird	Fancy Fence (CEOI20_fancyfence)	C++14	100 / 100	154 ms	13916 KiB

fancyfence

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#include <bits/stdc++.h>
#pragma GCC optimize("O3")
#pragma GCC optimize("Ofast")
#pragma GCC optimize("unroll-loops")
#pragma GCC target("avx,avx2,fma")
using namespace std;
typedef long long ll;
typedef pair<ll, ll> pll;
#define MAX 101010
#define MOD 1000000007
#define ln '\n'
ll H[MAX], W[MAX];
ll sw[MAX];
ll ans = 0;
ll N;
struct segtree {
  ll N, s;
  vector<pll> tree;
  vector<ll> l, r;
  void init(ll x = 1) {
    if (x >= s) {
      l[x] = r[x] = x - s + 1;
      if (x - s + 1 > N) tree[x] = { INT32_MAX, l[x] };
      tree[x].second = l[x];
      return;
    }
    init(x * 2);
    init(x * 2 + 1);
    l[x] = l[x * 2];
    r[x] = r[x * 2 + 1];
 
 
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