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답안 #389766

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
389766 2021-04-14T13:10:16 Z milleniumEeee Jakarta Skyscrapers (APIO15_skyscraper) C++14
100 / 100
 634 ms 101292 KB 
#include <bits/stdc++.h>
#define fr first
#define sc second
#define pii pair<int, int>
#define pb push_back
#define szof(s) (int)s.size()
#define all(s) s.begin(), s.end()
#define fastInp ios_base::sync_with_stdio(0); cin.tie(0);
#define int long long
using namespace std;
 
const int MAXN = 30005;
const int SHIFT = 50000;
const int S = 95;
const int INF = 1e9;
 
int pos[MAXN], p[MAXN];
int n, m;
 
struct node {
	int v, pw, cost;
	node () {
		
	}
	node (int v_, int pw_, int cost_) {
		v = v_;
		pw = pw_;
		cost = cost_;
	}
};
 
struct Compare_node {
	bool operator () (node const &p1, node const &p2) {
		if (p1.cost != p2.cost) {
			return p1.cost < p2.cost;			
		}
		if (p1.v != p2.v) {
			return p1.v < p2.v;
		}
		return p1.pw < p2.pw;
	}
};
 
vector <int> big[MAXN];
vector <int> small[MAXN];
vector <node> g[MAXN][S];
int dist[MAXN][S];
 
bool in(int pos) {
	return 0 <= pos && pos < n;
}
 
signed main() {
	fastInp;
	cin >> n >> m;
	set <int> all_small;
	for (int i = 0; i < m; i++) {
		cin >> pos[i] >> p[i];
		if (p[i] >= S) {
			big[pos[i]].pb(p[i]);
		} else {
			small[pos[i]].pb(p[i]);
			all_small.insert(p[i]);
		}
	}
	for (int i = 0; i < n; i++) {
		sort(all(small[i]));
		small[i].erase(unique(all(small[i])), small[i].end());
		for (int val : small[i]) {
			g[i][0].pb(node(i, val, 0));
		}
	}
	set <node, Compare_node> pq;
	vector <bool> used(MAXN, false);
	memset(dist, -1, sizeof(dist));
	pq.insert(node(pos[0], 0, 0));
	dist[pos[0]][0] = 0;
	while (!pq.empty()) {
		int v = pq.begin()->v;
		int pw = pq.begin()->pw;
		int cost = pq.begin()->cost;
		pq.erase(pq.begin());
		if (cost > dist[v][pw]) {
			continue;
		}
		if (!used[v]) { // впервые добрались до v
			used[v] = 1;
			for (int el : big[v]) {
				for (int to = v % el; to < n; to += el) {
					int c = abs(v - to) / el;
					if (dist[to][0] == -1 || dist[to][0] > cost + c) {
						dist[to][0] = cost + c;
						pq.insert(node(to, 0, dist[to][0]));
					}
				}
			}
		}
		// change our pw
		if (dist[v][0] == -1 || dist[v][0] > dist[v][pw]) {
			dist[v][0] = dist[v][pw];
			pq.insert(node(v, 0, dist[v][pw]));
		}
		if (pw == 0) {
			for (int el : small[v]) {
				int new_v = v;
				int new_pw = el;
				if (!in(new_v)) {
					continue;
				}			
				int c = 0;
				if (dist[new_v][new_pw] == -1 || dist[new_v][new_pw] > dist[v][pw] + c) {
					dist[new_v][new_pw] = dist[v][pw] + c;
					pq.insert(node(new_v, new_pw, dist[new_v][new_pw]));
				}		
			}
		}
		for (int type = -1; type <= 1; type++) {
			if (type == 0) {
				continue;
			}
			int new_v = v + type * pw;
			int new_pw = pw;
			if (!in(new_v)) {
				continue;
			}			
			int c = 1;
			if (dist[new_v][new_pw] == -1 || dist[new_v][new_pw] > dist[v][pw] + c) {
				dist[new_v][new_pw] = dist[v][pw] + c;
				pq.insert(node(new_v, new_pw, dist[new_v][new_pw]));
			}		
		}
	}
	cout << dist[pos[1]][0] << endl;
}

Subtask #1
10.0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Correct 51 ms 90924 KB Output is correct
2 Correct 51 ms 90920 KB Output is correct
3 Correct 51 ms 90940 KB Output is correct
4 Correct 52 ms 90912 KB Output is correct
5 Correct 51 ms 90956 KB Output is correct
6 Correct 53 ms 90908 KB Output is correct
7 Correct 51 ms 90852 KB Output is correct

Subtask #2
12.0 / 12.0

# 결과 실행 시간 메모리 Grader output
1 Correct 50 ms 90968 KB Output is correct
2 Correct 50 ms 90896 KB Output is correct
3 Correct 51 ms 90928 KB Output is correct
4 Correct 52 ms 90952 KB Output is correct
5 Correct 51 ms 90928 KB Output is correct
6 Correct 50 ms 90948 KB Output is correct
7 Correct 51 ms 90944 KB Output is correct
8 Correct 58 ms 90948 KB Output is correct
9 Correct 51 ms 90964 KB Output is correct
10 Correct 51 ms 91016 KB Output is correct
11 Correct 52 ms 91076 KB Output is correct
12 Correct 53 ms 91052 KB Output is correct
13 Correct 52 ms 90968 KB Output is correct
14 Correct 52 ms 91208 KB Output is correct
15 Correct 53 ms 91156 KB Output is correct

Subtask #3
14.0 / 14.0

# 결과 실행 시간 메모리 Grader output
1 Correct 50 ms 90944 KB Output is correct
2 Correct 51 ms 90844 KB Output is correct
3 Correct 51 ms 90972 KB Output is correct
4 Correct 51 ms 90948 KB Output is correct
5 Correct 52 ms 90948 KB Output is correct
6 Correct 58 ms 90960 KB Output is correct
7 Correct 52 ms 90948 KB Output is correct
8 Correct 50 ms 90884 KB Output is correct
9 Correct 52 ms 90988 KB Output is correct
10 Correct 51 ms 90988 KB Output is correct
11 Correct 53 ms 91148 KB Output is correct
12 Correct 51 ms 90920 KB Output is correct
13 Correct 51 ms 90940 KB Output is correct
14 Correct 53 ms 91116 KB Output is correct
15 Correct 53 ms 91208 KB Output is correct
16 Correct 52 ms 90976 KB Output is correct
17 Correct 54 ms 91084 KB Output is correct
18 Correct 59 ms 90900 KB Output is correct
19 Correct 52 ms 90992 KB Output is correct
20 Correct 50 ms 91076 KB Output is correct
21 Correct 51 ms 90952 KB Output is correct
22 Correct 51 ms 90992 KB Output is correct
23 Correct 53 ms 91000 KB Output is correct
24 Correct 53 ms 91060 KB Output is correct
25 Correct 52 ms 90956 KB Output is correct
26 Correct 54 ms 90956 KB Output is correct
27 Correct 52 ms 90952 KB Output is correct
28 Correct 53 ms 90976 KB Output is correct
29 Correct 59 ms 90948 KB Output is correct
30 Correct 54 ms 90932 KB Output is correct
31 Correct 56 ms 91076 KB Output is correct
32 Correct 54 ms 90948 KB Output is correct
33 Correct 68 ms 91336 KB Output is correct
34 Correct 70 ms 91208 KB Output is correct

Subtask #4
21.0 / 21.0

# 결과 실행 시간 메모리 Grader output
1 Correct 51 ms 90948 KB Output is correct
2 Correct 52 ms 90948 KB Output is correct
3 Correct 57 ms 90920 KB Output is correct
4 Correct 52 ms 90944 KB Output is correct
5 Correct 55 ms 90948 KB Output is correct
6 Correct 50 ms 90932 KB Output is correct
7 Correct 52 ms 90856 KB Output is correct
8 Correct 51 ms 90868 KB Output is correct
9 Correct 51 ms 90880 KB Output is correct
10 Correct 51 ms 91036 KB Output is correct
11 Correct 54 ms 91248 KB Output is correct
12 Correct 51 ms 90976 KB Output is correct
13 Correct 51 ms 90904 KB Output is correct
14 Correct 52 ms 91148 KB Output is correct
15 Correct 53 ms 91184 KB Output is correct
16 Correct 51 ms 90956 KB Output is correct
17 Correct 55 ms 91080 KB Output is correct
18 Correct 51 ms 90948 KB Output is correct
19 Correct 51 ms 90928 KB Output is correct
20 Correct 54 ms 91076 KB Output is correct
21 Correct 52 ms 91004 KB Output is correct
22 Correct 51 ms 90972 KB Output is correct
23 Correct 50 ms 90948 KB Output is correct
24 Correct 54 ms 91076 KB Output is correct
25 Correct 53 ms 90956 KB Output is correct
26 Correct 53 ms 91000 KB Output is correct
27 Correct 52 ms 91032 KB Output is correct
28 Correct 54 ms 91024 KB Output is correct
29 Correct 59 ms 90996 KB Output is correct
30 Correct 54 ms 91000 KB Output is correct
31 Correct 57 ms 90948 KB Output is correct
32 Correct 54 ms 90948 KB Output is correct
33 Correct 69 ms 91156 KB Output is correct
34 Correct 68 ms 91228 KB Output is correct
35 Correct 66 ms 91824 KB Output is correct
36 Correct 55 ms 91156 KB Output is correct
37 Correct 76 ms 91848 KB Output is correct
38 Correct 74 ms 92228 KB Output is correct
39 Correct 73 ms 92112 KB Output is correct
40 Correct 74 ms 92056 KB Output is correct
41 Correct 73 ms 92100 KB Output is correct
42 Correct 58 ms 91792 KB Output is correct
43 Correct 59 ms 91740 KB Output is correct
44 Correct 57 ms 91808 KB Output is correct
45 Correct 87 ms 92516 KB Output is correct
46 Correct 88 ms 92548 KB Output is correct

Subtask #5
43.0 / 43.0

# 결과 실행 시간 메모리 Grader output
1 Correct 52 ms 90880 KB Output is correct
2 Correct 51 ms 90948 KB Output is correct
3 Correct 51 ms 90880 KB Output is correct
4 Correct 50 ms 90976 KB Output is correct
5 Correct 53 ms 90896 KB Output is correct
6 Correct 51 ms 90888 KB Output is correct
7 Correct 51 ms 90896 KB Output is correct
8 Correct 52 ms 90888 KB Output is correct
9 Correct 51 ms 90952 KB Output is correct
10 Correct 51 ms 90948 KB Output is correct
11 Correct 52 ms 91084 KB Output is correct
12 Correct 52 ms 90948 KB Output is correct
13 Correct 51 ms 90948 KB Output is correct
14 Correct 52 ms 91204 KB Output is correct
15 Correct 53 ms 91116 KB Output is correct
16 Correct 52 ms 90912 KB Output is correct
17 Correct 54 ms 90984 KB Output is correct
18 Correct 51 ms 90908 KB Output is correct
19 Correct 52 ms 90888 KB Output is correct
20 Correct 52 ms 91076 KB Output is correct
21 Correct 50 ms 90992 KB Output is correct
22 Correct 52 ms 90948 KB Output is correct
23 Correct 52 ms 90948 KB Output is correct
24 Correct 54 ms 91148 KB Output is correct
25 Correct 52 ms 90944 KB Output is correct
26 Correct 52 ms 90916 KB Output is correct
27 Correct 52 ms 90948 KB Output is correct
28 Correct 53 ms 90996 KB Output is correct
29 Correct 60 ms 91008 KB Output is correct
30 Correct 53 ms 90928 KB Output is correct
31 Correct 56 ms 90956 KB Output is correct
32 Correct 54 ms 90948 KB Output is correct
33 Correct 69 ms 91144 KB Output is correct
34 Correct 68 ms 91204 KB Output is correct
35 Correct 67 ms 91844 KB Output is correct
36 Correct 54 ms 91136 KB Output is correct
37 Correct 73 ms 91828 KB Output is correct
38 Correct 74 ms 92036 KB Output is correct
39 Correct 73 ms 92100 KB Output is correct
40 Correct 74 ms 92148 KB Output is correct
41 Correct 73 ms 92044 KB Output is correct
42 Correct 58 ms 91692 KB Output is correct
43 Correct 57 ms 91688 KB Output is correct
44 Correct 57 ms 91752 KB Output is correct
45 Correct 89 ms 92612 KB Output is correct
46 Correct 88 ms 92476 KB Output is correct
47 Correct 145 ms 93272 KB Output is correct
48 Correct 58 ms 91764 KB Output is correct
49 Correct 59 ms 91708 KB Output is correct
50 Correct 56 ms 91568 KB Output is correct
51 Correct 113 ms 93564 KB Output is correct
52 Correct 118 ms 93536 KB Output is correct
53 Correct 69 ms 91972 KB Output is correct
54 Correct 54 ms 90924 KB Output is correct
55 Correct 55 ms 90944 KB Output is correct
56 Correct 68 ms 93200 KB Output is correct
57 Correct 145 ms 91204 KB Output is correct
58 Correct 65 ms 91784 KB Output is correct
59 Correct 68 ms 91716 KB Output is correct
60 Correct 71 ms 91840 KB Output is correct
61 Correct 68 ms 91712 KB Output is correct
62 Correct 101 ms 92400 KB Output is correct
63 Correct 141 ms 98076 KB Output is correct
64 Correct 147 ms 98372 KB Output is correct
65 Correct 176 ms 100020 KB Output is correct
66 Correct 618 ms 101284 KB Output is correct
67 Correct 634 ms 101292 KB Output is correct