oj.uz

Submission #110245

# Submission time Handle Problem Language Result Execution time Memory
110245 2019-05-10T09:45:48 Z hugo_pm Jakarta Skyscrapers (APIO15_skyscraper) C++17
100 / 100
 940 ms 96520 KB 
#pragma GCC optimize("O3")
#pragma GCC target("sse2,sse3,ssse3,sse4,avx,avx2,tune=native")
#include <bits/stdc++.h>
using namespace std;
 
#define form2(i, a, b) for (int i = (a); i < (b); ++i)
#define ford2(i, a, b) for (int i = (a-1); i >= (b); --i)
#define form(i, n) form2(i, 0, n)
#define ford(i, n) ford2(i, n, 0)
 
#define chmax(x, v) x = max(x, (v))
#define chmin(x, v) x = min(x, (v))
#define fi first
#define se second
 
const int BIG = 2*(int)(1e9);
 
typedef long long ll;
typedef long double ld;
typedef pair<int, int> pii;
 
void solve();
signed main()
{
	ios::sync_with_stdio(false);
	cin.tie(0);
	solve();
	return 0;
}
 
const int borneSuj = 30*1000 + 5;
const int borneTab = 200*borneSuj;
int gt[borneSuj][200];
int inv[borneTab];
bool witPrev[borneTab];
bool witSuiv[borneTab];
 
int arr = -1, dep=-1;
 
int nbPlaces, nbDoges, nbNoeuds;
int limSqd;
 
vector<int> doge[borneSuj];
 
void solve()
{
	cin >> nbPlaces >> nbDoges;
	chmax(nbPlaces, 20);
	nbNoeuds = nbPlaces;
	limSqd = sqrt(nbPlaces);
 
	form2(distance, 1, limSqd) {
		form(ini, distance) {
			for (int place = ini; place < nbPlaces; place += distance) {
				int corNod = nbNoeuds; ++nbNoeuds;
				inv[corNod] = place+1;
				gt[place][distance] = corNod;
 
				if (place != ini) {
					witPrev[corNod] = true;
					witSuiv[corNod-1] = true;
				}
			}
		}
	}
 
	form(iDoge, nbDoges) {
		int pos, saut;
		cin >> pos >> saut;
		if (iDoge == 0) dep = pos;
		if (iDoge == 1) arr = pos;
		doge[pos].push_back(saut);
	}
	
	vector<int> md(nbNoeuds, BIG);
	vector<int> etat(nbNoeuds, 2);
	deque<int> m1;

	m1.push_front(dep);
	md[dep] = 0;

	while (! m1.empty()) {
		int nod = m1.front(); m1.pop_front();
		etat[nod] = 0;
		int dis = md[nod];
 
 		auto propag = [&] (int vo, int poids) {
			if (etat[vo] == 2) {
				m1.push_back(vo);
				etat[vo] = 1;
				md[vo] = dis + poids;
			} else if (etat[vo] == 1) {
				chmin(md[vo], dis + poids);
			} else {
				if (dis+poids < md[vo]) {
					md[vo] = dis+poids;
					etat[vo] = 1;
					m1.push_back(vo);
				}
			}
		};
 
		if (nod < nbPlaces) {
			int pos = nod;
			for (int saut : doge[nod]) {
				if (saut < limSqd) {
					propag(gt[pos][saut], 0);
				} else {
					for (int dd = 1; pos + dd*saut < nbPlaces; ++dd) {
						propag(pos+dd*saut, dd);
					}
		 
					for (int dd = 1; pos - dd*saut >= 0; ++dd) {
						propag(pos-dd*saut, dd);
					}
				}
			}
		}
 
		if (nod >= nbPlaces) {
			if (inv[nod]) propag(inv[nod]-1, 0);
			if (witPrev[nod]) propag(nod-1, 1);
			if (witSuiv[nod]) propag(nod+1, 1);
		}
	}
 
	if (md[arr] == BIG) cout << "-1\n";
	else cout << md[arr] << "\n";
}

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 1024 KB Output is correct
2 Correct 2 ms 1024 KB Output is correct
3 Correct 3 ms 1152 KB Output is correct
4 Correct 3 ms 1152 KB Output is correct
5 Correct 3 ms 1152 KB Output is correct
6 Correct 3 ms 1152 KB Output is correct
7 Correct 3 ms 1152 KB Output is correct

Subtask #2
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 1152 KB Output is correct
2 Correct 3 ms 1024 KB Output is correct
3 Correct 3 ms 1024 KB Output is correct
4 Correct 3 ms 1024 KB Output is correct
5 Correct 3 ms 1024 KB Output is correct
6 Correct 3 ms 1024 KB Output is correct
7 Correct 4 ms 1024 KB Output is correct
8 Correct 3 ms 1152 KB Output is correct
9 Correct 3 ms 1152 KB Output is correct
10 Correct 4 ms 1152 KB Output is correct
11 Correct 3 ms 1152 KB Output is correct
12 Correct 3 ms 1152 KB Output is correct
13 Correct 3 ms 1152 KB Output is correct
14 Correct 3 ms 1152 KB Output is correct
15 Correct 3 ms 1152 KB Output is correct

Subtask #3
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 1024 KB Output is correct
2 Correct 4 ms 1024 KB Output is correct
3 Correct 3 ms 1024 KB Output is correct
4 Correct 3 ms 1024 KB Output is correct
5 Correct 3 ms 1024 KB Output is correct
6 Correct 3 ms 1152 KB Output is correct
7 Correct 4 ms 1152 KB Output is correct
8 Correct 3 ms 1152 KB Output is correct
9 Correct 3 ms 1152 KB Output is correct
10 Correct 3 ms 1152 KB Output is correct
11 Correct 4 ms 1152 KB Output is correct
12 Correct 4 ms 1152 KB Output is correct
13 Correct 4 ms 1152 KB Output is correct
14 Correct 3 ms 1152 KB Output is correct
15 Correct 3 ms 1152 KB Output is correct
16 Correct 3 ms 1280 KB Output is correct
17 Correct 4 ms 1920 KB Output is correct
18 Correct 6 ms 3456 KB Output is correct
19 Correct 6 ms 3840 KB Output is correct
20 Correct 7 ms 3968 KB Output is correct
21 Correct 4 ms 1536 KB Output is correct
22 Correct 7 ms 3556 KB Output is correct
23 Correct 6 ms 3196 KB Output is correct
24 Correct 7 ms 3712 KB Output is correct
25 Correct 6 ms 3840 KB Output is correct
26 Correct 7 ms 3840 KB Output is correct
27 Correct 6 ms 3840 KB Output is correct
28 Correct 9 ms 3968 KB Output is correct
29 Correct 7 ms 3840 KB Output is correct
30 Correct 6 ms 3840 KB Output is correct
31 Correct 7 ms 3840 KB Output is correct
32 Correct 7 ms 3840 KB Output is correct
33 Correct 8 ms 3840 KB Output is correct
34 Correct 14 ms 3840 KB Output is correct

Subtask #4
21.0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 1024 KB Output is correct
2 Correct 3 ms 1024 KB Output is correct
3 Correct 2 ms 1024 KB Output is correct
4 Correct 3 ms 1024 KB Output is correct
5 Correct 3 ms 1152 KB Output is correct
6 Correct 3 ms 1024 KB Output is correct
7 Correct 3 ms 1152 KB Output is correct
8 Correct 4 ms 1152 KB Output is correct
9 Correct 3 ms 1152 KB Output is correct
10 Correct 4 ms 1152 KB Output is correct
11 Correct 4 ms 1152 KB Output is correct
12 Correct 4 ms 1152 KB Output is correct
13 Correct 5 ms 1152 KB Output is correct
14 Correct 5 ms 1152 KB Output is correct
15 Correct 4 ms 1152 KB Output is correct
16 Correct 3 ms 1280 KB Output is correct
17 Correct 5 ms 1920 KB Output is correct
18 Correct 5 ms 3456 KB Output is correct
19 Correct 7 ms 3812 KB Output is correct
20 Correct 8 ms 3940 KB Output is correct
21 Correct 4 ms 1536 KB Output is correct
22 Correct 6 ms 3584 KB Output is correct
23 Correct 5 ms 3200 KB Output is correct
24 Correct 7 ms 3840 KB Output is correct
25 Correct 7 ms 3968 KB Output is correct
26 Correct 7 ms 3840 KB Output is correct
27 Correct 6 ms 3840 KB Output is correct
28 Correct 7 ms 3840 KB Output is correct
29 Correct 7 ms 3840 KB Output is correct
30 Correct 7 ms 3840 KB Output is correct
31 Correct 7 ms 3840 KB Output is correct
32 Correct 10 ms 3840 KB Output is correct
33 Correct 10 ms 3840 KB Output is correct
34 Correct 9 ms 3840 KB Output is correct
35 Correct 15 ms 3200 KB Output is correct
36 Correct 5 ms 2432 KB Output is correct
37 Correct 14 ms 3968 KB Output is correct
38 Correct 15 ms 4096 KB Output is correct
39 Correct 16 ms 4096 KB Output is correct
40 Correct 27 ms 4096 KB Output is correct
41 Correct 20 ms 4096 KB Output is correct
42 Correct 15 ms 4096 KB Output is correct
43 Correct 10 ms 4096 KB Output is correct
44 Correct 11 ms 4096 KB Output is correct
45 Correct 20 ms 4096 KB Output is correct
46 Correct 16 ms 3968 KB Output is correct

Subtask #5
43.0 / 43.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 1152 KB Output is correct
2 Correct 3 ms 1152 KB Output is correct
3 Correct 3 ms 1024 KB Output is correct
4 Correct 3 ms 1152 KB Output is correct
5 Correct 3 ms 1152 KB Output is correct
6 Correct 3 ms 1152 KB Output is correct
7 Correct 3 ms 1152 KB Output is correct
8 Correct 3 ms 1152 KB Output is correct
9 Correct 3 ms 1152 KB Output is correct
10 Correct 3 ms 1152 KB Output is correct
11 Correct 4 ms 1152 KB Output is correct
12 Correct 3 ms 1152 KB Output is correct
13 Correct 3 ms 1152 KB Output is correct
14 Correct 4 ms 1152 KB Output is correct
15 Correct 4 ms 1152 KB Output is correct
16 Correct 3 ms 1280 KB Output is correct
17 Correct 5 ms 1920 KB Output is correct
18 Correct 7 ms 3456 KB Output is correct
19 Correct 7 ms 3840 KB Output is correct
20 Correct 8 ms 3968 KB Output is correct
21 Correct 3 ms 1536 KB Output is correct
22 Correct 7 ms 3584 KB Output is correct
23 Correct 6 ms 3200 KB Output is correct
24 Correct 6 ms 3712 KB Output is correct
25 Correct 9 ms 3968 KB Output is correct
26 Correct 10 ms 3840 KB Output is correct
27 Correct 10 ms 3840 KB Output is correct
28 Correct 8 ms 3840 KB Output is correct
29 Correct 7 ms 3840 KB Output is correct
30 Correct 6 ms 3840 KB Output is correct
31 Correct 7 ms 3840 KB Output is correct
32 Correct 6 ms 3840 KB Output is correct
33 Correct 9 ms 3840 KB Output is correct
34 Correct 9 ms 3840 KB Output is correct
35 Correct 12 ms 3200 KB Output is correct
36 Correct 5 ms 2432 KB Output is correct
37 Correct 14 ms 3968 KB Output is correct
38 Correct 16 ms 4096 KB Output is correct
39 Correct 14 ms 4096 KB Output is correct
40 Correct 15 ms 4096 KB Output is correct
41 Correct 20 ms 4096 KB Output is correct
42 Correct 12 ms 4096 KB Output is correct
43 Correct 12 ms 4096 KB Output is correct
44 Correct 13 ms 4096 KB Output is correct
45 Correct 18 ms 4048 KB Output is correct
46 Correct 21 ms 4096 KB Output is correct
47 Correct 156 ms 29776 KB Output is correct
48 Correct 248 ms 67996 KB Output is correct
49 Correct 341 ms 76488 KB Output is correct
50 Correct 338 ms 87112 KB Output is correct
51 Correct 385 ms 96156 KB Output is correct
52 Correct 597 ms 96124 KB Output is correct
53 Correct 422 ms 96124 KB Output is correct
54 Correct 411 ms 95576 KB Output is correct
55 Correct 308 ms 95680 KB Output is correct
56 Correct 387 ms 96504 KB Output is correct
57 Correct 436 ms 95512 KB Output is correct
58 Correct 376 ms 95836 KB Output is correct
59 Correct 402 ms 95896 KB Output is correct
60 Correct 335 ms 95864 KB Output is correct
61 Correct 381 ms 95736 KB Output is correct
62 Correct 277 ms 96520 KB Output is correct
63 Correct 493 ms 95832 KB Output is correct
64 Correct 330 ms 95840 KB Output is correct
65 Correct 570 ms 95996 KB Output is correct
66 Correct 760 ms 95840 KB Output is correct
67 Correct 940 ms 96360 KB Output is correct