oj.uz

Submission #245944

# Submission time Handle Problem Language Result Execution time Memory
245944 2020-07-07T21:41:59 Z faremy Treatment Project (JOI20_treatment) C++14
100 / 100
 531 ms 140544 KB 
#include <iostream>
#include <algorithm>
#include <vector>
#include <queue>


struct Endpoint
{
	int x, y, segment, color;
	bool operator <(const Endpoint &other) const
	{
		if (x != other.x)
			return (x < other.x);
		return (color < other.color);
	}
};

struct Edge
{
	Edge(int d, long long w) : dest(d), weight(w) {}
	int dest;
	long long weight;

	bool operator <(const Edge &other) const
	{
		return (other.weight < weight);
	}
};


const int MAXN = 1e5;
const int MAXG = 2e6;
const long long INFTY = 1e18;

int day[MAXN];
int left[MAXN], right[MAXN];
long long cost[MAXN];

Endpoint extr[2 * MAXN];
Endpoint bckp[2 * MAXN];

int nodes;
std::vector<Edge> graph[MAXG];
std::priority_queue<Edge> dijkstra;
long long minDist[MAXG];


void buildgraph(int first, int last)
{
	if (last - first == 1)
		return;
	int mid = (first + last) / 2;
	buildgraph(first, mid);
	buildgraph(mid, last);

	int previous = -1;
	int iLeft = first, iSort = first;
	for (int iRight = mid; iRight < last; iRight++)
	{
		while (iLeft < mid && extr[iLeft].y >= extr[iRight].y)
		{
			if (extr[iLeft].color == 0)
			{
				graph[nodes].emplace_back(extr[iLeft].segment, cost[extr[iLeft].segment]);
				if (previous != -1)
					graph[nodes].emplace_back(previous, 0);
				previous = nodes;
				nodes++;
			}

			bckp[iSort] = extr[iLeft];
			iLeft++; iSort++;
		}

		if (extr[iRight].color == 1 && previous != -1)
			graph[extr[iRight].segment].emplace_back(previous, 0);
		bckp[iSort] = extr[iRight];
		iSort++;
	}

	for (; iLeft < mid; iLeft++)
	{
		bckp[iSort] = extr[iLeft];
		iSort++;
	}

	for (int iCpy = first; iCpy < last; iCpy++)
		extr[iCpy] = bckp[iCpy];
}

void push(int node, long long dist)
{
	for (Edge &edge : graph[node])
		if (minDist[edge.dest] == INFTY)
		{
			minDist[edge.dest] = dist + edge.weight;
			if (edge.weight == 0)
				push(edge.dest, dist);
			else
				dijkstra.emplace(edge.dest, dist + edge.weight);
		}
		
}

long long findcost(int people, int treatments)
{
	std::fill_n(minDist, MAXG, INFTY);
	for (int iTreat = 0; iTreat < treatments; iTreat++)
		if (left[iTreat] == 1)
		{
			minDist[iTreat] = cost[iTreat];
			dijkstra.emplace(iTreat, cost[iTreat]);
		}

	while (!dijkstra.empty())
	{
		int node = dijkstra.top().dest;
		long long dist = dijkstra.top().weight;
		dijkstra.pop();
		push(node, dist);
	}

	long long minCost = INFTY;
	for (int iTreat = 0; iTreat < treatments; iTreat++)
		if (right[iTreat] == people)
			minCost = std::min(minCost, minDist[iTreat]);
	return minCost;
}

int main()
{
	std::ios::sync_with_stdio(false);
	std::cout.tie(nullptr);
	std::cin.tie(nullptr);

	int people, treatments;
	std::cin >> people >> treatments;

	for (int iTreat = 0; iTreat < treatments; iTreat++)
	{
		std::cin >> day[iTreat] >> left[iTreat] >> right[iTreat] >> cost[iTreat];
		extr[iTreat * 2].x = day[iTreat] + left[iTreat];
		extr[iTreat * 2].y = day[iTreat] - left[iTreat];
		extr[iTreat * 2].segment = iTreat;
		extr[iTreat * 2].color = 0;
		
		extr[iTreat * 2 + 1].x = day[iTreat] + right[iTreat] + 1;
		extr[iTreat * 2 + 1].y = day[iTreat] - right[iTreat] - 1;
		extr[iTreat * 2 + 1].segment = iTreat;
		extr[iTreat * 2 + 1].color = 1;
	}

	std::sort(extr, extr + 2 * treatments);
	nodes = 2 * treatments;
	buildgraph(0, 2 * treatments);

	long long minpay = findcost(people, treatments);
	if (minpay == INFTY)
		std::cout << "-1\n";
	else
		std::cout << minpay << '\n';

	return 0;
}

Subtask #1
4.0 / 4.0

# Verdict Execution time Memory Grader output
1 Correct 353 ms 138872 KB Output is correct
2 Correct 362 ms 136568 KB Output is correct
3 Correct 320 ms 134680 KB Output is correct
4 Correct 307 ms 134672 KB Output is correct
5 Correct 299 ms 131548 KB Output is correct
6 Correct 315 ms 132668 KB Output is correct
7 Correct 314 ms 136440 KB Output is correct
8 Correct 285 ms 124256 KB Output is correct
9 Correct 265 ms 127712 KB Output is correct
10 Correct 362 ms 131748 KB Output is correct
11 Correct 376 ms 138380 KB Output is correct
12 Correct 379 ms 136924 KB Output is correct
13 Correct 423 ms 140544 KB Output is correct
14 Correct 429 ms 140528 KB Output is correct
15 Correct 525 ms 138440 KB Output is correct
16 Correct 401 ms 138324 KB Output is correct
17 Correct 393 ms 137536 KB Output is correct
18 Correct 444 ms 136188 KB Output is correct

Subtask #2
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 57 ms 62968 KB Output is correct
2 Correct 40 ms 62976 KB Output is correct
3 Correct 40 ms 62976 KB Output is correct
4 Correct 39 ms 62972 KB Output is correct
5 Correct 42 ms 62944 KB Output is correct
6 Correct 49 ms 62972 KB Output is correct
7 Correct 42 ms 62968 KB Output is correct
8 Correct 39 ms 62968 KB Output is correct
9 Correct 38 ms 62976 KB Output is correct
10 Correct 38 ms 62976 KB Output is correct
11 Correct 57 ms 62944 KB Output is correct
12 Correct 39 ms 62944 KB Output is correct
13 Correct 39 ms 62968 KB Output is correct
14 Correct 38 ms 62968 KB Output is correct
15 Correct 40 ms 62968 KB Output is correct
16 Correct 49 ms 62968 KB Output is correct
17 Correct 42 ms 62968 KB Output is correct
18 Correct 42 ms 62976 KB Output is correct
19 Correct 41 ms 62944 KB Output is correct

Subtask #3
30.0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 57 ms 62968 KB Output is correct
2 Correct 40 ms 62976 KB Output is correct
3 Correct 40 ms 62976 KB Output is correct
4 Correct 39 ms 62972 KB Output is correct
5 Correct 42 ms 62944 KB Output is correct
6 Correct 49 ms 62972 KB Output is correct
7 Correct 42 ms 62968 KB Output is correct
8 Correct 39 ms 62968 KB Output is correct
9 Correct 38 ms 62976 KB Output is correct
10 Correct 38 ms 62976 KB Output is correct
11 Correct 57 ms 62944 KB Output is correct
12 Correct 39 ms 62944 KB Output is correct
13 Correct 39 ms 62968 KB Output is correct
14 Correct 38 ms 62968 KB Output is correct
15 Correct 40 ms 62968 KB Output is correct
16 Correct 49 ms 62968 KB Output is correct
17 Correct 42 ms 62968 KB Output is correct
18 Correct 42 ms 62976 KB Output is correct
19 Correct 41 ms 62944 KB Output is correct
20 Correct 47 ms 65540 KB Output is correct
21 Correct 70 ms 65528 KB Output is correct
22 Correct 48 ms 65528 KB Output is correct
23 Correct 48 ms 65272 KB Output is correct
24 Correct 51 ms 65784 KB Output is correct
25 Correct 52 ms 65656 KB Output is correct
26 Correct 51 ms 65656 KB Output is correct
27 Correct 52 ms 65888 KB Output is correct
28 Correct 53 ms 65656 KB Output is correct
29 Correct 52 ms 65528 KB Output is correct
30 Correct 59 ms 65532 KB Output is correct
31 Correct 48 ms 65632 KB Output is correct
32 Correct 52 ms 66296 KB Output is correct
33 Correct 52 ms 66168 KB Output is correct
34 Correct 57 ms 66040 KB Output is correct
35 Correct 52 ms 66300 KB Output is correct
36 Correct 51 ms 66168 KB Output is correct
37 Correct 51 ms 66040 KB Output is correct

Subtask #4
61.0 / 61.0

# Verdict Execution time Memory Grader output
1 Correct 353 ms 138872 KB Output is correct
2 Correct 362 ms 136568 KB Output is correct
3 Correct 320 ms 134680 KB Output is correct
4 Correct 307 ms 134672 KB Output is correct
5 Correct 299 ms 131548 KB Output is correct
6 Correct 315 ms 132668 KB Output is correct
7 Correct 314 ms 136440 KB Output is correct
8 Correct 285 ms 124256 KB Output is correct
9 Correct 265 ms 127712 KB Output is correct
10 Correct 362 ms 131748 KB Output is correct
11 Correct 376 ms 138380 KB Output is correct
12 Correct 379 ms 136924 KB Output is correct
13 Correct 423 ms 140544 KB Output is correct
14 Correct 429 ms 140528 KB Output is correct
15 Correct 525 ms 138440 KB Output is correct
16 Correct 401 ms 138324 KB Output is correct
17 Correct 393 ms 137536 KB Output is correct
18 Correct 444 ms 136188 KB Output is correct
19 Correct 57 ms 62968 KB Output is correct
20 Correct 40 ms 62976 KB Output is correct
21 Correct 40 ms 62976 KB Output is correct
22 Correct 39 ms 62972 KB Output is correct
23 Correct 42 ms 62944 KB Output is correct
24 Correct 49 ms 62972 KB Output is correct
25 Correct 42 ms 62968 KB Output is correct
26 Correct 39 ms 62968 KB Output is correct
27 Correct 38 ms 62976 KB Output is correct
28 Correct 38 ms 62976 KB Output is correct
29 Correct 57 ms 62944 KB Output is correct
30 Correct 39 ms 62944 KB Output is correct
31 Correct 39 ms 62968 KB Output is correct
32 Correct 38 ms 62968 KB Output is correct
33 Correct 40 ms 62968 KB Output is correct
34 Correct 49 ms 62968 KB Output is correct
35 Correct 42 ms 62968 KB Output is correct
36 Correct 42 ms 62976 KB Output is correct
37 Correct 41 ms 62944 KB Output is correct
38 Correct 47 ms 65540 KB Output is correct
39 Correct 70 ms 65528 KB Output is correct
40 Correct 48 ms 65528 KB Output is correct
41 Correct 48 ms 65272 KB Output is correct
42 Correct 51 ms 65784 KB Output is correct
43 Correct 52 ms 65656 KB Output is correct
44 Correct 51 ms 65656 KB Output is correct
45 Correct 52 ms 65888 KB Output is correct
46 Correct 53 ms 65656 KB Output is correct
47 Correct 52 ms 65528 KB Output is correct
48 Correct 59 ms 65532 KB Output is correct
49 Correct 48 ms 65632 KB Output is correct
50 Correct 52 ms 66296 KB Output is correct
51 Correct 52 ms 66168 KB Output is correct
52 Correct 57 ms 66040 KB Output is correct
53 Correct 52 ms 66300 KB Output is correct
54 Correct 51 ms 66168 KB Output is correct
55 Correct 51 ms 66040 KB Output is correct
56 Correct 312 ms 121440 KB Output is correct
57 Correct 329 ms 133324 KB Output is correct
58 Correct 297 ms 121464 KB Output is correct
59 Correct 311 ms 122020 KB Output is correct
60 Correct 290 ms 113144 KB Output is correct
61 Correct 292 ms 121464 KB Output is correct
62 Correct 308 ms 121452 KB Output is correct
63 Correct 199 ms 96120 KB Output is correct
64 Correct 185 ms 96168 KB Output is correct
65 Correct 350 ms 139000 KB Output is correct
66 Correct 274 ms 108664 KB Output is correct
67 Correct 436 ms 131576 KB Output is correct
68 Correct 409 ms 131836 KB Output is correct
69 Correct 351 ms 133368 KB Output is correct
70 Correct 442 ms 131448 KB Output is correct
71 Correct 425 ms 131064 KB Output is correct
72 Correct 357 ms 133752 KB Output is correct
73 Correct 433 ms 130460 KB Output is correct
74 Correct 330 ms 129400 KB Output is correct
75 Correct 298 ms 130068 KB Output is correct
76 Correct 384 ms 137056 KB Output is correct
77 Correct 465 ms 140012 KB Output is correct
78 Correct 425 ms 138352 KB Output is correct
79 Correct 493 ms 130296 KB Output is correct
80 Correct 383 ms 136056 KB Output is correct
81 Correct 418 ms 129900 KB Output is correct
82 Correct 371 ms 135672 KB Output is correct
83 Correct 440 ms 134904 KB Output is correct
84 Correct 458 ms 129400 KB Output is correct
85 Correct 394 ms 134264 KB Output is correct
86 Correct 400 ms 131180 KB Output is correct
87 Correct 416 ms 134904 KB Output is correct
88 Correct 369 ms 136440 KB Output is correct
89 Correct 392 ms 131704 KB Output is correct
90 Correct 453 ms 136172 KB Output is correct
91 Correct 443 ms 135280 KB Output is correct
92 Correct 420 ms 130552 KB Output is correct
93 Correct 462 ms 130180 KB Output is correct
94 Correct 414 ms 133080 KB Output is correct
95 Correct 444 ms 130040 KB Output is correct
96 Correct 473 ms 134896 KB Output is correct
97 Correct 477 ms 137656 KB Output is correct
98 Correct 504 ms 137084 KB Output is correct
99 Correct 531 ms 138960 KB Output is correct
100 Correct 404 ms 133872 KB Output is correct
101 Correct 492 ms 138092 KB Output is correct
102 Correct 487 ms 140420 KB Output is correct
103 Correct 434 ms 135292 KB Output is correct