제출 #202570

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
202570		galen_colin	벽 (IOI14_wall)	C++14	61 / 100	2792 ms	52088 KiB

wall

#include <bits/stdc++.h>
#include <chrono> 
 
using namespace std;
using namespace std::chrono; 
 
// #pragma GCC target ("avx2")
// #pragma GCC optimization ("O3")
// #pragma GCC optimization ("unroll-loops")
// #pragma optimization_level 3
// #pragma GCC optimize("Ofast,no-stack-protector,unroll-loops,fast-math,O3")
// #pragma GCC target("sse,sse2,sse3,ssse3,sse4,popcnt,abm,mmx,avx,tune=native")
 
#define f0r(a, b) for (long long a = 0; a < (b); a++)
#define f1r(a, b, c) for (long long a = (b); a < (c); a++)
#define f0rd(a, b) for (long long a = (b); a >= 0; a--)
#define f1rd(a, b, c) for (long long a = (b); a >= (c); a--)
#define ms(arr, v) memset(arr, v, sizeof(arr))
#define pb push_back
#define io {ios_base::sync_with_stdio(false); cin.tie(NULL); cout.tie(NULL);}
#define mp make_pair
#define f first
#define s second
#define presum(p, a, n) {p[0] = a[0]; for (int i = 1; i < (n); i++) p[i] = a[i] + p[i-1];}
#define all(v) v.begin(), v.end()
#define getunique(v) {sort(all(v)); v.erase(unique(all(v)), v.end());}
#define readgraph(list, edges) for (int i = 0; i < edges; i++) {int a, b; cin >> a >> b; a--; b--; list[a].pb(b); list[b].pb(a);}
#define ai(a, n) for (int ele = 0; ele < n; ele++) cin >> a[ele];
#define ain(a, lb, rb) for (int ele = lb; ele <= rb; ele++) cin >> a[ele];
#define ao(a, n) {for (int ele = 0; ele < n; ele++) { if (ele) cout << " "; cout << a[ele]; } cout << '\n';}
#define aout(a, lb, rb) {for (int ele = lb; ele <= rb; ele++) { if (ele > lb) cout << " "; cout << a[ele]; } cout << '\n';}
typedef long long ll;
typedef double ld;
typedef long double lld;
typedef unsigned long long ull;
typedef pair<int, int> pii;
typedef pair<ll, ll> pll;
typedef vector<int> vi;
typedef vector<ll> vl;
typedef vector<pii> vpi;
typedef vector<pll> vpl;
 
template<typename A> ostream& operator<<(ostream &cout, vector<A> const &v);
template<typename A, typename B> ostream& operator<<(ostream &cout, pair<A, B> const &p) { return cout << "(" << p.f << ", " << p.s << ")"; }
template<typename A> ostream& operator<<(ostream &cout, vector<A> const &v) {
  cout << "["; for(int i = 0; i < v.size(); i++) {if (i) cout << ", "; cout << v[i];} return cout << "]";
}
template<typename A, typename B> istream& operator>>(istream& cin, pair<A, B> &p) {
  cin >> p.first;
  return cin >> p.second;
}
 
// template<typename A, typename B> ll max(A x, B y) {
//   return x > y ? x : y;
// }
// template<typename A, typename B> ll min(A x, B y) {
//   return x < y ? x : y;
// }
 
mt19937 rng(steady_clock::now().time_since_epoch().count());
/* usage - just do rng() */
 
void usaco(string filename) {
  // #pragma message("be careful, freopen may be wrong")
	freopen((filename + ".in").c_str(), "r", stdin);
	freopen((filename + ".out").c_str(), "w", stdout);
}
 
const lld pi = 3.14159265358979323846;
const ll mod = 1000000007;
// const ll mod = 998244353;
 
// namespace interactor {
  
// }
 
// using namespace interactor;
 
// void buildWall(int n, int q, int op[], int left[], int right[], int height[], int finalHeight[]);
 
// int main() {
//   usaco("file");
 
//   int n, q;
//   cin >> n >> q;
//   int op[q];
//   int left[q];
//   int right[q];
//   int height[q];
//   int finalHeight[n];
//   f0r(i, q) cin >> op[i] >> left[i] >> right[i] >> height[i];
//   f0r(i, n) finalHeight[i] = 0;
//   buildWall(n, q, op, left, right, height, finalHeight);
//   // buildWall(3, 3, 
//   // new int[3]{1, 1, 2},
//   // new int[3]{0, 1, 0},
//   // new int[3]{1, 2, 1},
//   // new int[3]{2, 4, 3},
//   // new int[3]{0, 0, 0});
// }
 
#include "wall.h"
 
ll n, m, k, q, Q, T, l, r, x, y, z;
ll a[1000005];
ll b[1000005];
ll c[1000005];
string s, t;
ll ans = 0;
 
vector<pair<int, pii> > st[100005], en[100005];
set<pair<int, pii> > ms;
const int block = 500;
 
void buildWall(int n, int q, int op[], int left[], int right[], int height[], int a[]) {
  f0r(i, n) a[i] = 0;
 
  int mn = 0, mx = 0;
  f0r(i, q) {
    mn = min(mn, height[i]);
    mx = max(mx, height[i]);
  }
 
  int stop = 0;
  int last = 0;
  while (1) {
    stop += block;
    if (stop > q) stop = q;
 
    f1r(i, last, stop) {
      int l = left[i], r = right[i], h = height[i];
 
      st[l].pb(mp(i, mp(op[i], h)));
      en[r + 1].pb(mp(i, mp(op[i], h)));
    }
 
    pii free = mp(mn, mx);
    int fin = -1;
 
    f0r(i, n) {
      bool changed = 0;
      for (pair<int, pii> x: st[i]) {
        changed = 1;
        ms.insert(x);
      }
      for (pair<int, pii> x: en[i]) {
        changed = 1;
        ms.erase(x);
      }
 
      if (changed) {
        free = mp(mn, mx);
        fin = -1;
        for (pair<int, pii> x: ms) {
          pii v = x.s;
          int h = v.s;
          if (v.f == 1) {
            if (h >= free.s) {
              free.f = free.s = h;
              fin = h;
            } else if (h >= free.f) {
              free.f = h;
            }
          } else {
            if (h <= free.f) {
              free.f = free.s = h;
              fin = h;
            } else if (h <= free.s) {
              free.s = h;
            }
          }
        }
      }
 
      if (fin == -1) {
        if (a[i] < free.f) a[i] = free.f;
        else if (a[i] > free.s) a[i] = free.s;
      } else a[i] = fin;
    }
 
    f0r(i, n) {
      st[i].clear();
      en[i].clear();
    }
    ms.clear();
    last += block;
    if (stop == q) break;
  }
 
  // ao(a, n);
}
 
// int main() {
//   io;
//   // freopen("case", "r", stdin);
//   // freopen("test.txt", "r", stdin);
//   // freopen("case", "w", stdout);
//   // freopen("file.in", "r", stdin);
 
//   // usaco("file");
 
  
// } 

컴파일 시 표준 에러 (stderr) 메시지

wall.cpp: In function 'void usaco(std::__cxx11::string)':
wall.cpp:65:9: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result]
  freopen((filename + ".in").c_str(), "r", stdin);
  ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
wall.cpp:66:9: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result]
  freopen((filename + ".out").c_str(), "w", stdout);
  ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

• Subtask 1: 8 / 8
• Subtask 2: 24 / 24
• Subtask 3: 29 / 29
• Subtask 4: 0 / 39