oj.uz

Submission #101747

# Submission time Handle Problem Language Result Execution time Memory
101747 2019-03-19T19:36:10 Z hugo_pm Port Facility (JOI17_port_facility) C++17
100 / 100
 2000 ms 124856 KB 
#include <bits/stdc++.h>
using namespace std;

#define int long long
#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 long long BIG = 1000000000000000000LL;

typedef long long ll;
typedef long double ld;
typedef pair<int, int> pii;

void cpr(string s, vector<int> v)
{ int i = 0; for (char c : s) { if (c == '$') cout << v[i++]; else cout << c; } cout << '\n'; }

void cpr(string s) { cpr(s, {}); }

void solve();
signed main()
{
	ios::sync_with_stdio(false);
	cin.tie(0);
	solve();
	return 0;
}

const int borne = 2 * ((int)(1e6) + 5); // MODIF POUR OJ !!!
const int MOD = (int)(1e9) + 7;
int nbCas;
pii cas[borne];

// Union-find
int par[borne];
int sz[borne];

void duInit()
{
	form(i, borne) {
		par[i] = i;
		sz[i] = 1;
	}
}

int duFind(int x)
{
	if (par[x] == x) return x;
	return par[x] = duFind(par[x]);
}

void duUnir(int a, int b)
{
	a = duFind(a);
	b = duFind(b);
	if (a == b) return;
	if (sz[a] < sz[b]) swap(a, b); // a devient gros
	par[b] = a;
	sz[a] += sz[b];
}
// Fin

map<int, int> endToCas;

void solve()
{
	duInit();
	cin >> nbCas;
	form(i, nbCas) cin >> cas[i].fi >> cas[i].se;
	sort(cas, cas+nbCas);

	form(cur, nbCas) {
		int gauche = cas[cur].fi, droite = cas[cur].se;

		auto deb = endToCas.lower_bound(gauche);
		auto mur = endToCas.lower_bound(droite);
		if (mur != endToCas.begin()) {
			auto fin = mur; --fin;
			while (deb != mur) {
				duUnir(cur, deb->se + nbCas);
				duUnir(cur + nbCas, deb->se);

				if (duFind(deb->se) == duFind(fin->se)) break;
				++deb;
			}
		}
		endToCas[droite] = cur;
	}

	int ans = 1;
	form(caisse, nbCas) {
		if (duFind(caisse) == caisse) {
			ans *= 2;
			ans %= MOD;
		}
		// Non-biparti
		if (duFind(caisse) == duFind(caisse + nbCas)) {
			cout << "0\n";
			return;
		}
	}
	cout << ans << "\n";
}

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 30 ms 31616 KB Output is correct
2 Correct 25 ms 31736 KB Output is correct
3 Correct 25 ms 31616 KB Output is correct
4 Correct 25 ms 31716 KB Output is correct
5 Correct 28 ms 31736 KB Output is correct
6 Correct 29 ms 31736 KB Output is correct
7 Correct 30 ms 31676 KB Output is correct
8 Correct 27 ms 31696 KB Output is correct
9 Correct 27 ms 31608 KB Output is correct
10 Correct 28 ms 31616 KB Output is correct
11 Correct 28 ms 31616 KB Output is correct
12 Correct 32 ms 31616 KB Output is correct
13 Correct 29 ms 31616 KB Output is correct
14 Correct 34 ms 31608 KB Output is correct
15 Correct 30 ms 31608 KB Output is correct
16 Correct 28 ms 31608 KB Output is correct
17 Correct 28 ms 31608 KB Output is correct
18 Correct 29 ms 31608 KB Output is correct
19 Correct 29 ms 31736 KB Output is correct
20 Correct 32 ms 31616 KB Output is correct
21 Correct 25 ms 31744 KB Output is correct
22 Correct 28 ms 31612 KB Output is correct
23 Correct 27 ms 31616 KB Output is correct
24 Correct 27 ms 31616 KB Output is correct

Subtask #2
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 30 ms 31616 KB Output is correct
2 Correct 25 ms 31736 KB Output is correct
3 Correct 25 ms 31616 KB Output is correct
4 Correct 25 ms 31716 KB Output is correct
5 Correct 28 ms 31736 KB Output is correct
6 Correct 29 ms 31736 KB Output is correct
7 Correct 30 ms 31676 KB Output is correct
8 Correct 27 ms 31696 KB Output is correct
9 Correct 27 ms 31608 KB Output is correct
10 Correct 28 ms 31616 KB Output is correct
11 Correct 28 ms 31616 KB Output is correct
12 Correct 32 ms 31616 KB Output is correct
13 Correct 29 ms 31616 KB Output is correct
14 Correct 34 ms 31608 KB Output is correct
15 Correct 30 ms 31608 KB Output is correct
16 Correct 28 ms 31608 KB Output is correct
17 Correct 28 ms 31608 KB Output is correct
18 Correct 29 ms 31608 KB Output is correct
19 Correct 29 ms 31736 KB Output is correct
20 Correct 32 ms 31616 KB Output is correct
21 Correct 25 ms 31744 KB Output is correct
22 Correct 28 ms 31612 KB Output is correct
23 Correct 27 ms 31616 KB Output is correct
24 Correct 27 ms 31616 KB Output is correct
25 Correct 27 ms 31844 KB Output is correct
26 Correct 27 ms 31864 KB Output is correct
27 Correct 26 ms 31872 KB Output is correct
28 Correct 28 ms 31864 KB Output is correct
29 Correct 26 ms 31864 KB Output is correct
30 Correct 27 ms 31872 KB Output is correct
31 Correct 26 ms 31872 KB Output is correct
32 Correct 31 ms 31864 KB Output is correct
33 Correct 26 ms 31992 KB Output is correct
34 Correct 26 ms 31864 KB Output is correct
35 Correct 25 ms 31864 KB Output is correct
36 Correct 32 ms 31872 KB Output is correct
37 Correct 36 ms 31820 KB Output is correct
38 Correct 36 ms 31864 KB Output is correct
39 Correct 28 ms 31752 KB Output is correct
40 Correct 26 ms 31864 KB Output is correct
41 Correct 30 ms 31896 KB Output is correct
42 Correct 30 ms 31872 KB Output is correct
43 Correct 68 ms 31864 KB Output is correct
44 Correct 30 ms 31864 KB Output is correct

Subtask #3
56.0 / 56.0

# Verdict Execution time Memory Grader output
1 Correct 30 ms 31616 KB Output is correct
2 Correct 25 ms 31736 KB Output is correct
3 Correct 25 ms 31616 KB Output is correct
4 Correct 25 ms 31716 KB Output is correct
5 Correct 28 ms 31736 KB Output is correct
6 Correct 29 ms 31736 KB Output is correct
7 Correct 30 ms 31676 KB Output is correct
8 Correct 27 ms 31696 KB Output is correct
9 Correct 27 ms 31608 KB Output is correct
10 Correct 28 ms 31616 KB Output is correct
11 Correct 28 ms 31616 KB Output is correct
12 Correct 32 ms 31616 KB Output is correct
13 Correct 29 ms 31616 KB Output is correct
14 Correct 34 ms 31608 KB Output is correct
15 Correct 30 ms 31608 KB Output is correct
16 Correct 28 ms 31608 KB Output is correct
17 Correct 28 ms 31608 KB Output is correct
18 Correct 29 ms 31608 KB Output is correct
19 Correct 29 ms 31736 KB Output is correct
20 Correct 32 ms 31616 KB Output is correct
21 Correct 25 ms 31744 KB Output is correct
22 Correct 28 ms 31612 KB Output is correct
23 Correct 27 ms 31616 KB Output is correct
24 Correct 27 ms 31616 KB Output is correct
25 Correct 27 ms 31844 KB Output is correct
26 Correct 27 ms 31864 KB Output is correct
27 Correct 26 ms 31872 KB Output is correct
28 Correct 28 ms 31864 KB Output is correct
29 Correct 26 ms 31864 KB Output is correct
30 Correct 27 ms 31872 KB Output is correct
31 Correct 26 ms 31872 KB Output is correct
32 Correct 31 ms 31864 KB Output is correct
33 Correct 26 ms 31992 KB Output is correct
34 Correct 26 ms 31864 KB Output is correct
35 Correct 25 ms 31864 KB Output is correct
36 Correct 32 ms 31872 KB Output is correct
37 Correct 36 ms 31820 KB Output is correct
38 Correct 36 ms 31864 KB Output is correct
39 Correct 28 ms 31752 KB Output is correct
40 Correct 26 ms 31864 KB Output is correct
41 Correct 30 ms 31896 KB Output is correct
42 Correct 30 ms 31872 KB Output is correct
43 Correct 68 ms 31864 KB Output is correct
44 Correct 30 ms 31864 KB Output is correct
45 Correct 108 ms 40828 KB Output is correct
46 Correct 106 ms 40892 KB Output is correct
47 Correct 101 ms 40804 KB Output is correct
48 Correct 104 ms 40740 KB Output is correct
49 Correct 102 ms 40696 KB Output is correct
50 Correct 105 ms 40800 KB Output is correct
51 Correct 93 ms 40692 KB Output is correct
52 Correct 109 ms 40796 KB Output is correct
53 Correct 107 ms 40824 KB Output is correct
54 Correct 97 ms 40800 KB Output is correct
55 Correct 108 ms 40696 KB Output is correct
56 Correct 102 ms 40728 KB Output is correct
57 Correct 110 ms 40780 KB Output is correct
58 Correct 110 ms 40824 KB Output is correct
59 Correct 95 ms 40848 KB Output is correct
60 Correct 101 ms 40736 KB Output is correct
61 Correct 105 ms 40800 KB Output is correct
62 Correct 98 ms 40836 KB Output is correct
63 Correct 94 ms 40696 KB Output is correct
64 Correct 96 ms 40736 KB Output is correct
65 Correct 122 ms 40696 KB Output is correct
66 Correct 125 ms 40792 KB Output is correct
67 Correct 116 ms 40696 KB Output is correct
68 Correct 120 ms 40844 KB Output is correct
69 Correct 122 ms 40744 KB Output is correct
70 Correct 124 ms 40696 KB Output is correct
71 Correct 116 ms 40720 KB Output is correct
72 Correct 125 ms 40832 KB Output is correct
73 Correct 117 ms 40796 KB Output is correct
74 Correct 123 ms 40732 KB Output is correct
75 Correct 119 ms 40924 KB Output is correct
76 Correct 125 ms 40848 KB Output is correct
77 Correct 132 ms 40796 KB Output is correct
78 Correct 97 ms 40812 KB Output is correct
79 Correct 103 ms 40824 KB Output is correct

Subtask #4
22.0 / 22.0

# Verdict Execution time Memory Grader output
1 Correct 30 ms 31616 KB Output is correct
2 Correct 25 ms 31736 KB Output is correct
3 Correct 25 ms 31616 KB Output is correct
4 Correct 25 ms 31716 KB Output is correct
5 Correct 28 ms 31736 KB Output is correct
6 Correct 29 ms 31736 KB Output is correct
7 Correct 30 ms 31676 KB Output is correct
8 Correct 27 ms 31696 KB Output is correct
9 Correct 27 ms 31608 KB Output is correct
10 Correct 28 ms 31616 KB Output is correct
11 Correct 28 ms 31616 KB Output is correct
12 Correct 32 ms 31616 KB Output is correct
13 Correct 29 ms 31616 KB Output is correct
14 Correct 34 ms 31608 KB Output is correct
15 Correct 30 ms 31608 KB Output is correct
16 Correct 28 ms 31608 KB Output is correct
17 Correct 28 ms 31608 KB Output is correct
18 Correct 29 ms 31608 KB Output is correct
19 Correct 29 ms 31736 KB Output is correct
20 Correct 32 ms 31616 KB Output is correct
21 Correct 25 ms 31744 KB Output is correct
22 Correct 28 ms 31612 KB Output is correct
23 Correct 27 ms 31616 KB Output is correct
24 Correct 27 ms 31616 KB Output is correct
25 Correct 27 ms 31844 KB Output is correct
26 Correct 27 ms 31864 KB Output is correct
27 Correct 26 ms 31872 KB Output is correct
28 Correct 28 ms 31864 KB Output is correct
29 Correct 26 ms 31864 KB Output is correct
30 Correct 27 ms 31872 KB Output is correct
31 Correct 26 ms 31872 KB Output is correct
32 Correct 31 ms 31864 KB Output is correct
33 Correct 26 ms 31992 KB Output is correct
34 Correct 26 ms 31864 KB Output is correct
35 Correct 25 ms 31864 KB Output is correct
36 Correct 32 ms 31872 KB Output is correct
37 Correct 36 ms 31820 KB Output is correct
38 Correct 36 ms 31864 KB Output is correct
39 Correct 28 ms 31752 KB Output is correct
40 Correct 26 ms 31864 KB Output is correct
41 Correct 30 ms 31896 KB Output is correct
42 Correct 30 ms 31872 KB Output is correct
43 Correct 68 ms 31864 KB Output is correct
44 Correct 30 ms 31864 KB Output is correct
45 Correct 108 ms 40828 KB Output is correct
46 Correct 106 ms 40892 KB Output is correct
47 Correct 101 ms 40804 KB Output is correct
48 Correct 104 ms 40740 KB Output is correct
49 Correct 102 ms 40696 KB Output is correct
50 Correct 105 ms 40800 KB Output is correct
51 Correct 93 ms 40692 KB Output is correct
52 Correct 109 ms 40796 KB Output is correct
53 Correct 107 ms 40824 KB Output is correct
54 Correct 97 ms 40800 KB Output is correct
55 Correct 108 ms 40696 KB Output is correct
56 Correct 102 ms 40728 KB Output is correct
57 Correct 110 ms 40780 KB Output is correct
58 Correct 110 ms 40824 KB Output is correct
59 Correct 95 ms 40848 KB Output is correct
60 Correct 101 ms 40736 KB Output is correct
61 Correct 105 ms 40800 KB Output is correct
62 Correct 98 ms 40836 KB Output is correct
63 Correct 94 ms 40696 KB Output is correct
64 Correct 96 ms 40736 KB Output is correct
65 Correct 122 ms 40696 KB Output is correct
66 Correct 125 ms 40792 KB Output is correct
67 Correct 116 ms 40696 KB Output is correct
68 Correct 120 ms 40844 KB Output is correct
69 Correct 122 ms 40744 KB Output is correct
70 Correct 124 ms 40696 KB Output is correct
71 Correct 116 ms 40720 KB Output is correct
72 Correct 125 ms 40832 KB Output is correct
73 Correct 117 ms 40796 KB Output is correct
74 Correct 123 ms 40732 KB Output is correct
75 Correct 119 ms 40924 KB Output is correct
76 Correct 125 ms 40848 KB Output is correct
77 Correct 132 ms 40796 KB Output is correct
78 Correct 97 ms 40812 KB Output is correct
79 Correct 103 ms 40824 KB Output is correct
80 Correct 875 ms 124660 KB Output is correct
81 Correct 882 ms 124692 KB Output is correct
82 Correct 800 ms 124612 KB Output is correct
83 Correct 915 ms 124584 KB Output is correct
84 Correct 820 ms 124772 KB Output is correct
85 Correct 803 ms 124720 KB Output is correct
86 Correct 815 ms 124508 KB Output is correct
87 Correct 1393 ms 124528 KB Output is correct
88 Correct 1455 ms 124732 KB Output is correct
89 Correct 1217 ms 124664 KB Output is correct
90 Correct 1254 ms 124764 KB Output is correct
91 Correct 1377 ms 124664 KB Output is correct
92 Correct 1355 ms 124672 KB Output is correct
93 Correct 1531 ms 124780 KB Output is correct
94 Correct 783 ms 124664 KB Output is correct
95 Correct 814 ms 124680 KB Output is correct
96 Correct 790 ms 124560 KB Output is correct
97 Correct 759 ms 124456 KB Output is correct
98 Correct 823 ms 124596 KB Output is correct
99 Correct 781 ms 124648 KB Output is correct
100 Correct 2000 ms 124616 KB Output is correct
101 Correct 1975 ms 124544 KB Output is correct
102 Correct 1241 ms 124720 KB Output is correct
103 Correct 1242 ms 124664 KB Output is correct
104 Correct 1178 ms 124536 KB Output is correct
105 Correct 1228 ms 124584 KB Output is correct
106 Correct 1463 ms 124600 KB Output is correct
107 Correct 1497 ms 124656 KB Output is correct
108 Correct 1241 ms 124572 KB Output is correct
109 Correct 1332 ms 124760 KB Output is correct
110 Correct 1293 ms 124516 KB Output is correct
111 Correct 1358 ms 124856 KB Output is correct
112 Correct 1374 ms 124664 KB Output is correct
113 Correct 850 ms 124632 KB Output is correct
114 Correct 802 ms 124680 KB Output is correct