oj.uz

답안 #290213

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
290213 2020-09-03T13:45:47 Z shivensinha4 Pinball (JOI14_pinball) C++17
100 / 100
 302 ms 36184 KB 
#include <bits/stdc++.h> 
#include <ext/pb_ds/assoc_container.hpp>
using namespace __gnu_pbds;
using namespace std; 
#define for_(i, s, e) for (int i = s; i < (int) e; i++)
#define for__(i, s, e) for (ll i = s; i < e; i++)
typedef long long ll;
typedef vector<int> vi;
typedef pair<int, int> ii;
#define endl '\n'
 
ll INF = 1e15;
 
class SegmentTree {
	private:
		vector<ll> tree; int n;
		ll bound = INF;
		
		ll merge(ll a, ll b) {
			return min(a, b);
		}
		
		void update(int i, ll val, int l, int r, int p) {
			if (l > i or r < i) return;
			if (l == r) {
				tree[p] = min(tree[p], val);
				return;
			}
			
			int mid = (l + r) / 2;
			int c1 = 2*p+1, c2 = 2*p+2;
			update(i, val, l, mid, c1); update(i, val, mid+1, r, c2);
			tree[p] = merge(tree[c1], tree[c2]);
		}
		
		ll mn(int i, int j, int l, int r, int p) {
			if (l > j or r < i) return bound;
			if (l >= i and r <= j) return tree[p];
			
			int mid = (l + r) / 2;
			int c1 = 2*p+1, c2 = 2*p+2;
			return merge(mn(i, j, l, mid, c1), mn(i, j, mid+1, r, c2));
		}
	
	public: 
		SegmentTree(int N) {
			n = N;
			tree.resize(4*n, INF);
		}
		
		ll mn(int i, int j) {
			return mn(i, j, 0, n-1, 0);
		}
		
		void update(int i, ll val) {
			update(i, val, 0, n-1, 0);
		}
};
 
 
 
int main() {
	#ifndef ONLINE_JUDGE
	//freopen("test.in", "r", stdin);
	#endif
	
	ios_base::sync_with_stdio(false);
	cin.tie(0);
	
	int m, n; cin >> m >> n;
	vector<ll> cost(m); vi l(m), r(m), c(m);
	vi allPts;
	allPts.push_back(1); allPts.push_back(n);
	for_(i, 0, m) {
		cin >> l[i] >> r[i] >> c[i] >> cost[i];
		allPts.push_back(l[i]); allPts.push_back(r[i]); allPts.push_back(c[i]);
	}
	
	sort(allPts.begin(), allPts.end());
	gp_hash_table<int, int> id;
	int pt = 0;
	for_(i, 0, allPts.size()) if (i == 0 or allPts[i] != allPts[i-1]) id[allPts[i]] = pt++;
	
	for_(i, 0, m) {
		l[i] = id[l[i]]; r[i] = id[r[i]]; c[i] = id[c[i]];
	}
	
	int pointCount = id[allPts.back()]+1;
	SegmentTree rCost(pointCount), lCost(pointCount);
	
	ll ans = INF;
	for_(i, 0, m) {
		ll lc = lCost.mn(l[i], r[i]), rc = rCost.mn(l[i], r[i]);
		if (r[i] == pointCount-1) rc = 0;
		if (l[i] == 0) lc = 0;
		if (lc != INF) lCost.update(c[i], lc+cost[i]);
		if (rc != INF) rCost.update(c[i], rc+cost[i]);
		ans = min(ans, lc+rc+cost[i]);
	}
	
	cout << (ans == INF ? -1 : ans) << endl;
	
	return 0;
}

Subtask #1
11.0 / 11.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 384 KB Output is correct
2 Correct 1 ms 384 KB Output is correct
3 Correct 0 ms 384 KB Output is correct
4 Correct 0 ms 384 KB Output is correct
5 Correct 0 ms 384 KB Output is correct
6 Correct 0 ms 384 KB Output is correct
7 Correct 0 ms 384 KB Output is correct
8 Correct 1 ms 384 KB Output is correct

Subtask #2
18.0 / 18.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 384 KB Output is correct
2 Correct 1 ms 384 KB Output is correct
3 Correct 0 ms 384 KB Output is correct
4 Correct 0 ms 384 KB Output is correct
5 Correct 0 ms 384 KB Output is correct
6 Correct 0 ms 384 KB Output is correct
7 Correct 0 ms 384 KB Output is correct
8 Correct 1 ms 384 KB Output is correct
9 Correct 1 ms 384 KB Output is correct
10 Correct 1 ms 384 KB Output is correct
11 Correct 1 ms 416 KB Output is correct
12 Correct 1 ms 384 KB Output is correct
13 Correct 1 ms 384 KB Output is correct
14 Correct 1 ms 384 KB Output is correct

Subtask #3
22.0 / 22.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 384 KB Output is correct
2 Correct 1 ms 384 KB Output is correct
3 Correct 0 ms 384 KB Output is correct
4 Correct 0 ms 384 KB Output is correct
5 Correct 0 ms 384 KB Output is correct
6 Correct 0 ms 384 KB Output is correct
7 Correct 0 ms 384 KB Output is correct
8 Correct 1 ms 384 KB Output is correct
9 Correct 1 ms 384 KB Output is correct
10 Correct 1 ms 384 KB Output is correct
11 Correct 1 ms 416 KB Output is correct
12 Correct 1 ms 384 KB Output is correct
13 Correct 1 ms 384 KB Output is correct
14 Correct 1 ms 384 KB Output is correct
15 Correct 1 ms 384 KB Output is correct
16 Correct 1 ms 384 KB Output is correct
17 Correct 3 ms 548 KB Output is correct
18 Correct 2 ms 384 KB Output is correct
19 Correct 3 ms 640 KB Output is correct
20 Correct 2 ms 512 KB Output is correct
21 Correct 1 ms 512 KB Output is correct
22 Correct 2 ms 768 KB Output is correct
23 Correct 2 ms 768 KB Output is correct
24 Correct 2 ms 768 KB Output is correct

Subtask #4
49.0 / 49.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 384 KB Output is correct
2 Correct 1 ms 384 KB Output is correct
3 Correct 0 ms 384 KB Output is correct
4 Correct 0 ms 384 KB Output is correct
5 Correct 0 ms 384 KB Output is correct
6 Correct 0 ms 384 KB Output is correct
7 Correct 0 ms 384 KB Output is correct
8 Correct 1 ms 384 KB Output is correct
9 Correct 1 ms 384 KB Output is correct
10 Correct 1 ms 384 KB Output is correct
11 Correct 1 ms 416 KB Output is correct
12 Correct 1 ms 384 KB Output is correct
13 Correct 1 ms 384 KB Output is correct
14 Correct 1 ms 384 KB Output is correct
15 Correct 1 ms 384 KB Output is correct
16 Correct 1 ms 384 KB Output is correct
17 Correct 3 ms 548 KB Output is correct
18 Correct 2 ms 384 KB Output is correct
19 Correct 3 ms 640 KB Output is correct
20 Correct 2 ms 512 KB Output is correct
21 Correct 1 ms 512 KB Output is correct
22 Correct 2 ms 768 KB Output is correct
23 Correct 2 ms 768 KB Output is correct
24 Correct 2 ms 768 KB Output is correct
25 Correct 20 ms 2680 KB Output is correct
26 Correct 62 ms 6512 KB Output is correct
27 Correct 173 ms 12904 KB Output is correct
28 Correct 153 ms 4464 KB Output is correct
29 Correct 126 ms 11496 KB Output is correct
30 Correct 194 ms 5772 KB Output is correct
31 Correct 297 ms 21732 KB Output is correct
32 Correct 253 ms 15592 KB Output is correct
33 Correct 33 ms 6376 KB Output is correct
34 Correct 115 ms 18276 KB Output is correct
35 Correct 204 ms 36064 KB Output is correct
36 Correct 302 ms 36176 KB Output is correct
37 Correct 255 ms 36184 KB Output is correct
38 Correct 242 ms 36176 KB Output is correct