oj.uz

답안 #395073

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
395073 2021-04-27T17:14:37 Z arwaeystoamneg Pinball (JOI14_pinball) C++17
0 / 100
 1 ms 332 KB 
// EXPLOSION!
#define _CRT_SECURE_NO_WARNINGS
#include<bits/stdc++.h>
#include<unordered_set>
#include<unordered_map>
#include<chrono>

using namespace std;
typedef pair<int, int> pii;
typedef long long ll;
typedef pair<ll, ll> pll;
typedef long double ld;
typedef vector<int> vi;
typedef vector<ll> vll;
typedef vector<pair<int, int>> vpi;
typedef vector<pair<ll, ll>> vpll;

#define FOR(i,a,b) for (int i = (a); i < (b); ++i)
#define F0R(i,a) FOR(i,0,a)
#define ROF(i,a,b) for (int i = (b)-1; i >= (a); --i)
#define R0F(i,a) ROF(i,0,a)
#define trav(a,x) for (auto& a: x)

#define pb push_back
#define mp make_pair
#define rsz resize
#define sz(x) int(x.size())
#define all(x) x.begin(),x.end()
#define f first
#define s second
#define cont continue
#define endl '\n'
//#define ednl '\n'
#define test int testc;cin>>testc;while(testc--)
#define pr(a, b) trav(x,a)cerr << x << b; cerr << endl;
#define message cout << "Hello World" << endl;
const int dx[4] = { 1,0,-1,0 }, dy[4] = { 0,1,0,-1 }; // for every grid problem!!
const ll linf = 4000000000000000000LL;
const ll inf = 1000000007;//998244353    

void pv(vi a) { trav(x, a)cout << x << " "; cout << endl; }void pv(vll a) { trav(x, a)cout << x << " "; cout << endl; }void pv(vector<vi>a) {
	F0R(i, sz(a)) { cout << i << endl; pv(a[i]); cout << endl; }
}void pv(vector<vll>a) { F0R(i, sz(a)) { cout << i << endl; pv(a[i]); }cout << endl; }void pv(vector<string>a) { trav(x, a)cout << x << endl; cout << endl; }
void setIO(string s) {
	ios_base::sync_with_stdio(0); cin.tie(0);
#ifdef arwaeystoamneg
	if (sz(s))
	{
		freopen((s + ".in").c_str(), "r", stdin);
		if (s != "test1")
			freopen((s + ".out").c_str(), "w", stdout);
	}
#endif
}
template<class T>class segment_tree
{
	struct item
	{
		T sum;
	};
	item single(T i)
	{
		return { i };
	}
	item merge(item x, item y)
	{
		item ans;
		ans.sum = min(x.sum, y.sum);
		return ans;
	}
	vector<item> tree;
	vector<item>A;
	int height;
	item neutral = { linf };
public:void build(vector<T>& B)
{
	int	n = B.size();
	height = log2(n + 1) + 1;
	A.rsz(n);
	tree.rsz((1 << height + 1) - 1);
	F0R(i, n)A[i] = single(B[i]);
	A.rsz(1 << height, neutral);
	build(A, 0, 0, (1 << height) - 1);
}
	  void build(vector<item>& A, int v, int tl, int tr)
	  {
		  if (tl == tr)
			  tree[v] = A[tl];
		  else
		  {
			  int mid = (tl + tr) / 2;
			  build(A, 2 * v + 1, tl, mid);
			  build(A, 2 * v + 2, mid + 1, tr);
			  tree[v] = merge(tree[2 * v + 1], tree[2 * v + 2]);
		  }
	  }
public:T query(int l, int r)
{
	return query(0, 0, (1 << height) - 1, l, r).sum;
}
	  item query(int v, int tl, int tr, int l, int r)
	  {
		  if (r<tl || l>tr)return neutral;
		  if (l <= tl && r >= tr)
		  {
			  return tree[v];
		  }
		  int mid = (tl + tr) / 2;
		  return merge(query(2 * v + 1, tl, mid, l, r), query(2 * v + 2, mid + 1, tr, l, r));
	  }
	  //assign
public:void update(int pos, T val)
{
	update(0, 0, (1 << height) - 1, pos, single(val));
}
	  void update(int v, int tl, int tr, int pos, item val)
	  {
		  if (tl == tr)
		  {
			  tree[v] = val;
		  }
		  else
		  {
			  int mid = (tl + tr) / 2;
			  if (pos <= mid)
				  update(2 * v + 1, tl, mid, pos, val);
			  else
				  update(2 * v + 2, mid + 1, tr, pos, val);
			  tree[v] = merge(tree[2 * v + 1], tree[2 * v + 2]);
		  }
	  }
public:int get(int k)
{
	return get(0, 0, (1 << height) - 1, k);
}
	  int get(int v, int tl, int tr, int k)
	  {
		  if (tl == tr)return tl;
		  int mid = (tl + tr) / 2;
		  if (k > tree[2 * v + 1].sum)
			  return get(2 * v + 2, mid + 1, tr, k - tree[2 * v + 1].sum);
		  return get(2 * v + 1, tl, mid, k);
	  }
};

struct pinball
{
	int l, r, x, c;
};
const int MAX = 100006;
int n, m, order[3 * MAX], ptr;
vll l, r;
pinball a[MAX];
int main() 
{
	setIO("test1");
	cin >> n >> m;
	F0R(i, n)cin >> a[i].l >> a[i].r >> a[i].x >> a[i].c, a[i].l--, a[i].r--, a[i].x--;
	F0R(i, n)order[ptr++] = a[i].l, order[ptr++] = a[i].r, order[ptr++] = a[i].x;
	order[ptr++] = m;
	sort(order, order + 3 * n + 1);
	F0R(i, n)
	{
		a[i].l = lower_bound(order, order + 3 * n + 1, a[i].l) - order;
		a[i].r = lower_bound(order, order + 3 * n + 1, a[i].r) - order;
		a[i].x = lower_bound(order, order + 3 * n + 1, a[i].x) - order;
		// upper_bound makes things weird
	}
	m = 1 + lower_bound(order, order + 3 * n + 1, m - 1) - order;
	l.rsz(m);
	r.rsz(m);
	F0R(i, m)l[i] = r[i] = linf;
	l[0] = 0;
	r[m - 1] = 0;
	segment_tree<ll>left, right;
	left.build(l);
	right.build(r);
	ll ans = linf;
	F0R(i,n)
	{
		ans = min(ans, left.query(a[i].l, a[i].r) + right.query(a[i].l, a[i].r) + a[i].c);
		l[a[i].x] = min(l[a[i].x], left.query(a[i].l, a[i].r) + a[i].c);
		r[a[i].x] = min(r[a[i].x], right.query(a[i].l, a[i].r) + a[i].c);
		left.update(a[i].x, l[a[i].x]);
		right.update(a[i].x, r[a[i].x]);
	}
	F0R(i, m)ans = min(ans, l[i] + r[i]);
	cout << (ans >= 1e18 ? -1 : ans) << endl;
}

Compilation message

pinball.cpp: In instantiation of 'void segment_tree<T>::build(std::vector<_Tp>&) [with T = long long int]':
pinball.cpp:176:14:   required from here
pinball.cpp:80:24: warning: suggest parentheses around '+' inside '<<' [-Wparentheses]
   80 |  tree.rsz((1 << height + 1) - 1);
      |                 ~~~~~~~^~~

Subtask #1
0 / 11.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 204 KB Output is correct
2 Correct 1 ms 204 KB Output is correct
3 Correct 1 ms 332 KB Output is correct
4 Correct 1 ms 204 KB Output is correct
5 Correct 1 ms 204 KB Output is correct
6 Correct 1 ms 332 KB Output is correct
7 Incorrect 1 ms 332 KB Output isn't correct
8 Halted 0 ms 0 KB -

Subtask #2
0 / 18.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 204 KB Output is correct
2 Correct 1 ms 204 KB Output is correct
3 Correct 1 ms 332 KB Output is correct
4 Correct 1 ms 204 KB Output is correct
5 Correct 1 ms 204 KB Output is correct
6 Correct 1 ms 332 KB Output is correct
7 Incorrect 1 ms 332 KB Output isn't correct
8 Halted 0 ms 0 KB -

Subtask #3
0 / 22.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 204 KB Output is correct
2 Correct 1 ms 204 KB Output is correct
3 Correct 1 ms 332 KB Output is correct
4 Correct 1 ms 204 KB Output is correct
5 Correct 1 ms 204 KB Output is correct
6 Correct 1 ms 332 KB Output is correct
7 Incorrect 1 ms 332 KB Output isn't correct
8 Halted 0 ms 0 KB -

Subtask #4
0 / 49.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 204 KB Output is correct
2 Correct 1 ms 204 KB Output is correct
3 Correct 1 ms 332 KB Output is correct
4 Correct 1 ms 204 KB Output is correct
5 Correct 1 ms 204 KB Output is correct
6 Correct 1 ms 332 KB Output is correct
7 Incorrect 1 ms 332 KB Output isn't correct
8 Halted 0 ms 0 KB -