oj.uz

답안 #395078

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
395078 2021-04-27T17:21:26 Z arwaeystoamneg Pinball (JOI14_pinball) C++17
100 / 100
 411 ms 38756 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--;
	order[ptr++] = 0;
	F0R(i, n)order[ptr++] = a[i].l, order[ptr++] = a[i].r, order[ptr++] = a[i].x;
	order[ptr++] = m;
	sort(order, order + ptr);
	F0R(i, n)
	{
		a[i].l = lower_bound(order, order + ptr, a[i].l) - order;
		a[i].r = lower_bound(order, order + ptr, a[i].r) - order;
		a[i].x = lower_bound(order, order + ptr, a[i].x) - order;
		// upper_bound makes things weird
	}
	m = 1 + lower_bound(order, order + ptr, 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:177:14:   required from here
pinball.cpp:80:24: warning: suggest parentheses around '+' inside '<<' [-Wparentheses]
   80 |  tree.rsz((1 << height + 1) - 1);
      |                 ~~~~~~~^~~

Subtask #1
11.0 / 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 332 KB Output is correct
5 Correct 1 ms 336 KB Output is correct
6 Correct 1 ms 204 KB Output is correct
7 Correct 1 ms 332 KB Output is correct
8 Correct 1 ms 332 KB Output is correct

Subtask #2
18.0 / 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 332 KB Output is correct
5 Correct 1 ms 336 KB Output is correct
6 Correct 1 ms 204 KB Output is correct
7 Correct 1 ms 332 KB Output is correct
8 Correct 1 ms 332 KB Output is correct
9 Correct 1 ms 332 KB Output is correct
10 Correct 1 ms 332 KB Output is correct
11 Correct 1 ms 332 KB Output is correct
12 Correct 1 ms 332 KB Output is correct
13 Correct 1 ms 332 KB Output is correct
14 Correct 1 ms 336 KB Output is correct

Subtask #3
22.0 / 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 332 KB Output is correct
5 Correct 1 ms 336 KB Output is correct
6 Correct 1 ms 204 KB Output is correct
7 Correct 1 ms 332 KB Output is correct
8 Correct 1 ms 332 KB Output is correct
9 Correct 1 ms 332 KB Output is correct
10 Correct 1 ms 332 KB Output is correct
11 Correct 1 ms 332 KB Output is correct
12 Correct 1 ms 332 KB Output is correct
13 Correct 1 ms 332 KB Output is correct
14 Correct 1 ms 336 KB Output is correct
15 Correct 1 ms 332 KB Output is correct
16 Correct 1 ms 332 KB Output is correct
17 Correct 3 ms 636 KB Output is correct
18 Correct 3 ms 588 KB Output is correct
19 Correct 3 ms 588 KB Output is correct
20 Correct 3 ms 588 KB Output is correct
21 Correct 2 ms 464 KB Output is correct
22 Correct 3 ms 588 KB Output is correct
23 Correct 2 ms 592 KB Output is correct
24 Correct 3 ms 588 KB Output is correct

Subtask #4
49.0 / 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 332 KB Output is correct
5 Correct 1 ms 336 KB Output is correct
6 Correct 1 ms 204 KB Output is correct
7 Correct 1 ms 332 KB Output is correct
8 Correct 1 ms 332 KB Output is correct
9 Correct 1 ms 332 KB Output is correct
10 Correct 1 ms 332 KB Output is correct
11 Correct 1 ms 332 KB Output is correct
12 Correct 1 ms 332 KB Output is correct
13 Correct 1 ms 332 KB Output is correct
14 Correct 1 ms 336 KB Output is correct
15 Correct 1 ms 332 KB Output is correct
16 Correct 1 ms 332 KB Output is correct
17 Correct 3 ms 636 KB Output is correct
18 Correct 3 ms 588 KB Output is correct
19 Correct 3 ms 588 KB Output is correct
20 Correct 3 ms 588 KB Output is correct
21 Correct 2 ms 464 KB Output is correct
22 Correct 3 ms 588 KB Output is correct
23 Correct 2 ms 592 KB Output is correct
24 Correct 3 ms 588 KB Output is correct
25 Correct 27 ms 3088 KB Output is correct
26 Correct 79 ms 9748 KB Output is correct
27 Correct 269 ms 22008 KB Output is correct
28 Correct 344 ms 38604 KB Output is correct
29 Correct 188 ms 19388 KB Output is correct
30 Correct 383 ms 38556 KB Output is correct
31 Correct 411 ms 38656 KB Output is correct
32 Correct 399 ms 38644 KB Output is correct
33 Correct 42 ms 6004 KB Output is correct
34 Correct 166 ms 19560 KB Output is correct
35 Correct 236 ms 38604 KB Output is correct
36 Correct 393 ms 38556 KB Output is correct
37 Correct 330 ms 38588 KB Output is correct
38 Correct 321 ms 38756 KB Output is correct