oj.uz

Submission #752927

# Submission time Handle Problem Language Result Execution time Memory
752927 2023-06-04T09:57:13 Z bgnbvnbv Port Facility (JOI17_port_facility) C++14
100 / 100
 1291 ms 156020 KB 
#include <bits/stdc++.h>
#define ll long long
#define pll pair<ll, ll>
#define pii pair<ll, pll>
#define pb push_back
#define fi first
#define se second
using namespace std;
const int N = 2e6+5;
const ll mod = 1e9 + 7;
const int base = 40;
ll n, m, k, t, a[N], b[N], tong, dp[N], lab[N], ans;
char c;
vector<ll> adj[N], kq;
pll p[N];
ll pw(ll k, ll n)
{
	ll total = 1;
	for(; n; n >>= 1)
	{
		if(n & 1)total = total * k % mod;
		k = k * k % mod;
	}
	return total;
}

ll findp(ll u)
{
	return lab[u] < 0 ? u : lab[u] = findp(lab[u]);
}
void hop(ll u, ll v)
{
	if(lab[u] > lab[v])swap(u, v);
	lab[u] += lab[v];
	lab[v] = u;

}

void sol()
{
	cin >> n;
	fill_n(lab, n*2+4, -1);
	for(int i = 1; i <= n; i ++)
	{
		cin >> p[i].fi >> p[i].se;
	}
	sort(p+1, p+1+n);
	set<pll> st;
	for(int i = 1; i <= n; i ++)
	{
		auto l = st.lower_bound({p[i].fi, 0ll}), r = st.upper_bound({p[i].se, n*2+1});
		if(l != st.end() && r != st.begin() && (*l).fi < p[i].se)
		{
			r = prev(r);
			while(true)
			{
				pll x = *l;
                ll u = findp(i), v = findp(x.se+n);
                if(u != v)hop(u, v);
                u = findp(i+n), v = findp(x.se);
                if(u != v)hop(u, v);
                if(findp(x.se) == findp((*r).se))break;
                ++l;
			}
		}
		st.insert({p[i].se, i});
	}
	for(int i = 1; i <= n*2; i ++)
	{
		if(i <= n && findp(i) == findp(i+n))
		{
			cout << 0;
			return;
		}
		if(lab[i] < 0)++ans;
	}
	cout << pw(2, ans/2);
}
int main()
{
    cin.tie(0);
    cout.tie(0);
    ios_base::sync_with_stdio(0);
    int test = 1;
    //cin >> test;
    while (test-- > 0)
        sol();
    return 0;
}

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 22 ms 47312 KB Output is correct
2 Correct 22 ms 47288 KB Output is correct
3 Correct 22 ms 47244 KB Output is correct
4 Correct 22 ms 47188 KB Output is correct
5 Correct 22 ms 47308 KB Output is correct
6 Correct 23 ms 47188 KB Output is correct
7 Correct 23 ms 47228 KB Output is correct
8 Correct 23 ms 47200 KB Output is correct
9 Correct 24 ms 47292 KB Output is correct
10 Correct 24 ms 47292 KB Output is correct
11 Correct 24 ms 47260 KB Output is correct
12 Correct 25 ms 47192 KB Output is correct
13 Correct 22 ms 47296 KB Output is correct
14 Correct 23 ms 47268 KB Output is correct
15 Correct 23 ms 47188 KB Output is correct
16 Correct 23 ms 47268 KB Output is correct
17 Correct 25 ms 47304 KB Output is correct
18 Correct 23 ms 47196 KB Output is correct
19 Correct 22 ms 47180 KB Output is correct
20 Correct 25 ms 47200 KB Output is correct
21 Correct 26 ms 47188 KB Output is correct
22 Correct 30 ms 47180 KB Output is correct
23 Correct 27 ms 47184 KB Output is correct
24 Correct 23 ms 47188 KB Output is correct

Subtask #2
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 22 ms 47312 KB Output is correct
2 Correct 22 ms 47288 KB Output is correct
3 Correct 22 ms 47244 KB Output is correct
4 Correct 22 ms 47188 KB Output is correct
5 Correct 22 ms 47308 KB Output is correct
6 Correct 23 ms 47188 KB Output is correct
7 Correct 23 ms 47228 KB Output is correct
8 Correct 23 ms 47200 KB Output is correct
9 Correct 24 ms 47292 KB Output is correct
10 Correct 24 ms 47292 KB Output is correct
11 Correct 24 ms 47260 KB Output is correct
12 Correct 25 ms 47192 KB Output is correct
13 Correct 22 ms 47296 KB Output is correct
14 Correct 23 ms 47268 KB Output is correct
15 Correct 23 ms 47188 KB Output is correct
16 Correct 23 ms 47268 KB Output is correct
17 Correct 25 ms 47304 KB Output is correct
18 Correct 23 ms 47196 KB Output is correct
19 Correct 22 ms 47180 KB Output is correct
20 Correct 25 ms 47200 KB Output is correct
21 Correct 26 ms 47188 KB Output is correct
22 Correct 30 ms 47180 KB Output is correct
23 Correct 27 ms 47184 KB Output is correct
24 Correct 23 ms 47188 KB Output is correct
25 Correct 25 ms 47444 KB Output is correct
26 Correct 23 ms 47444 KB Output is correct
27 Correct 24 ms 47500 KB Output is correct
28 Correct 29 ms 47380 KB Output is correct
29 Correct 26 ms 47476 KB Output is correct
30 Correct 24 ms 47444 KB Output is correct
31 Correct 25 ms 47456 KB Output is correct
32 Correct 24 ms 47444 KB Output is correct
33 Correct 24 ms 47572 KB Output is correct
34 Correct 24 ms 47444 KB Output is correct
35 Correct 23 ms 47444 KB Output is correct
36 Correct 22 ms 47492 KB Output is correct
37 Correct 23 ms 47368 KB Output is correct
38 Correct 25 ms 47472 KB Output is correct
39 Correct 23 ms 47428 KB Output is correct
40 Correct 23 ms 47444 KB Output is correct
41 Correct 23 ms 47388 KB Output is correct
42 Correct 23 ms 47424 KB Output is correct
43 Correct 24 ms 47428 KB Output is correct
44 Correct 23 ms 47476 KB Output is correct

Subtask #3
56.0 / 56.0

# Verdict Execution time Memory Grader output
1 Correct 22 ms 47312 KB Output is correct
2 Correct 22 ms 47288 KB Output is correct
3 Correct 22 ms 47244 KB Output is correct
4 Correct 22 ms 47188 KB Output is correct
5 Correct 22 ms 47308 KB Output is correct
6 Correct 23 ms 47188 KB Output is correct
7 Correct 23 ms 47228 KB Output is correct
8 Correct 23 ms 47200 KB Output is correct
9 Correct 24 ms 47292 KB Output is correct
10 Correct 24 ms 47292 KB Output is correct
11 Correct 24 ms 47260 KB Output is correct
12 Correct 25 ms 47192 KB Output is correct
13 Correct 22 ms 47296 KB Output is correct
14 Correct 23 ms 47268 KB Output is correct
15 Correct 23 ms 47188 KB Output is correct
16 Correct 23 ms 47268 KB Output is correct
17 Correct 25 ms 47304 KB Output is correct
18 Correct 23 ms 47196 KB Output is correct
19 Correct 22 ms 47180 KB Output is correct
20 Correct 25 ms 47200 KB Output is correct
21 Correct 26 ms 47188 KB Output is correct
22 Correct 30 ms 47180 KB Output is correct
23 Correct 27 ms 47184 KB Output is correct
24 Correct 23 ms 47188 KB Output is correct
25 Correct 25 ms 47444 KB Output is correct
26 Correct 23 ms 47444 KB Output is correct
27 Correct 24 ms 47500 KB Output is correct
28 Correct 29 ms 47380 KB Output is correct
29 Correct 26 ms 47476 KB Output is correct
30 Correct 24 ms 47444 KB Output is correct
31 Correct 25 ms 47456 KB Output is correct
32 Correct 24 ms 47444 KB Output is correct
33 Correct 24 ms 47572 KB Output is correct
34 Correct 24 ms 47444 KB Output is correct
35 Correct 23 ms 47444 KB Output is correct
36 Correct 22 ms 47492 KB Output is correct
37 Correct 23 ms 47368 KB Output is correct
38 Correct 25 ms 47472 KB Output is correct
39 Correct 23 ms 47428 KB Output is correct
40 Correct 23 ms 47444 KB Output is correct
41 Correct 23 ms 47388 KB Output is correct
42 Correct 23 ms 47424 KB Output is correct
43 Correct 24 ms 47428 KB Output is correct
44 Correct 23 ms 47476 KB Output is correct
45 Correct 82 ms 56684 KB Output is correct
46 Correct 81 ms 56652 KB Output is correct
47 Correct 80 ms 56564 KB Output is correct
48 Correct 80 ms 56560 KB Output is correct
49 Correct 80 ms 56572 KB Output is correct
50 Correct 79 ms 56596 KB Output is correct
51 Correct 79 ms 56720 KB Output is correct
52 Correct 90 ms 56652 KB Output is correct
53 Correct 85 ms 56652 KB Output is correct
54 Correct 82 ms 56620 KB Output is correct
55 Correct 89 ms 57916 KB Output is correct
56 Correct 90 ms 57940 KB Output is correct
57 Correct 93 ms 57892 KB Output is correct
58 Correct 88 ms 57940 KB Output is correct
59 Correct 76 ms 57868 KB Output is correct
60 Correct 78 ms 57876 KB Output is correct
61 Correct 81 ms 57960 KB Output is correct
62 Correct 71 ms 57932 KB Output is correct
63 Correct 75 ms 57924 KB Output is correct
64 Correct 80 ms 57824 KB Output is correct
65 Correct 90 ms 57836 KB Output is correct
66 Correct 100 ms 57944 KB Output is correct
67 Correct 90 ms 57932 KB Output is correct
68 Correct 91 ms 57884 KB Output is correct
69 Correct 84 ms 57912 KB Output is correct
70 Correct 92 ms 57920 KB Output is correct
71 Correct 94 ms 58020 KB Output is correct
72 Correct 91 ms 57880 KB Output is correct
73 Correct 93 ms 57940 KB Output is correct
74 Correct 93 ms 57912 KB Output is correct
75 Correct 90 ms 57888 KB Output is correct
76 Correct 98 ms 57940 KB Output is correct
77 Correct 93 ms 57924 KB Output is correct
78 Correct 79 ms 57848 KB Output is correct
79 Correct 81 ms 57928 KB Output is correct

Subtask #4
22.0 / 22.0

# Verdict Execution time Memory Grader output
1 Correct 22 ms 47312 KB Output is correct
2 Correct 22 ms 47288 KB Output is correct
3 Correct 22 ms 47244 KB Output is correct
4 Correct 22 ms 47188 KB Output is correct
5 Correct 22 ms 47308 KB Output is correct
6 Correct 23 ms 47188 KB Output is correct
7 Correct 23 ms 47228 KB Output is correct
8 Correct 23 ms 47200 KB Output is correct
9 Correct 24 ms 47292 KB Output is correct
10 Correct 24 ms 47292 KB Output is correct
11 Correct 24 ms 47260 KB Output is correct
12 Correct 25 ms 47192 KB Output is correct
13 Correct 22 ms 47296 KB Output is correct
14 Correct 23 ms 47268 KB Output is correct
15 Correct 23 ms 47188 KB Output is correct
16 Correct 23 ms 47268 KB Output is correct
17 Correct 25 ms 47304 KB Output is correct
18 Correct 23 ms 47196 KB Output is correct
19 Correct 22 ms 47180 KB Output is correct
20 Correct 25 ms 47200 KB Output is correct
21 Correct 26 ms 47188 KB Output is correct
22 Correct 30 ms 47180 KB Output is correct
23 Correct 27 ms 47184 KB Output is correct
24 Correct 23 ms 47188 KB Output is correct
25 Correct 25 ms 47444 KB Output is correct
26 Correct 23 ms 47444 KB Output is correct
27 Correct 24 ms 47500 KB Output is correct
28 Correct 29 ms 47380 KB Output is correct
29 Correct 26 ms 47476 KB Output is correct
30 Correct 24 ms 47444 KB Output is correct
31 Correct 25 ms 47456 KB Output is correct
32 Correct 24 ms 47444 KB Output is correct
33 Correct 24 ms 47572 KB Output is correct
34 Correct 24 ms 47444 KB Output is correct
35 Correct 23 ms 47444 KB Output is correct
36 Correct 22 ms 47492 KB Output is correct
37 Correct 23 ms 47368 KB Output is correct
38 Correct 25 ms 47472 KB Output is correct
39 Correct 23 ms 47428 KB Output is correct
40 Correct 23 ms 47444 KB Output is correct
41 Correct 23 ms 47388 KB Output is correct
42 Correct 23 ms 47424 KB Output is correct
43 Correct 24 ms 47428 KB Output is correct
44 Correct 23 ms 47476 KB Output is correct
45 Correct 82 ms 56684 KB Output is correct
46 Correct 81 ms 56652 KB Output is correct
47 Correct 80 ms 56564 KB Output is correct
48 Correct 80 ms 56560 KB Output is correct
49 Correct 80 ms 56572 KB Output is correct
50 Correct 79 ms 56596 KB Output is correct
51 Correct 79 ms 56720 KB Output is correct
52 Correct 90 ms 56652 KB Output is correct
53 Correct 85 ms 56652 KB Output is correct
54 Correct 82 ms 56620 KB Output is correct
55 Correct 89 ms 57916 KB Output is correct
56 Correct 90 ms 57940 KB Output is correct
57 Correct 93 ms 57892 KB Output is correct
58 Correct 88 ms 57940 KB Output is correct
59 Correct 76 ms 57868 KB Output is correct
60 Correct 78 ms 57876 KB Output is correct
61 Correct 81 ms 57960 KB Output is correct
62 Correct 71 ms 57932 KB Output is correct
63 Correct 75 ms 57924 KB Output is correct
64 Correct 80 ms 57824 KB Output is correct
65 Correct 90 ms 57836 KB Output is correct
66 Correct 100 ms 57944 KB Output is correct
67 Correct 90 ms 57932 KB Output is correct
68 Correct 91 ms 57884 KB Output is correct
69 Correct 84 ms 57912 KB Output is correct
70 Correct 92 ms 57920 KB Output is correct
71 Correct 94 ms 58020 KB Output is correct
72 Correct 91 ms 57880 KB Output is correct
73 Correct 93 ms 57940 KB Output is correct
74 Correct 93 ms 57912 KB Output is correct
75 Correct 90 ms 57888 KB Output is correct
76 Correct 98 ms 57940 KB Output is correct
77 Correct 93 ms 57924 KB Output is correct
78 Correct 79 ms 57848 KB Output is correct
79 Correct 81 ms 57928 KB Output is correct
80 Correct 647 ms 155724 KB Output is correct
81 Correct 644 ms 155864 KB Output is correct
82 Correct 642 ms 156004 KB Output is correct
83 Correct 638 ms 155900 KB Output is correct
84 Correct 639 ms 156000 KB Output is correct
85 Correct 673 ms 155720 KB Output is correct
86 Correct 628 ms 155844 KB Output is correct
87 Correct 1008 ms 155740 KB Output is correct
88 Correct 1000 ms 155684 KB Output is correct
89 Correct 924 ms 155968 KB Output is correct
90 Correct 892 ms 155792 KB Output is correct
91 Correct 944 ms 155792 KB Output is correct
92 Correct 1039 ms 155860 KB Output is correct
93 Correct 994 ms 156020 KB Output is correct
94 Correct 620 ms 155860 KB Output is correct
95 Correct 656 ms 155792 KB Output is correct
96 Correct 637 ms 155704 KB Output is correct
97 Correct 606 ms 155808 KB Output is correct
98 Correct 641 ms 155832 KB Output is correct
99 Correct 603 ms 155792 KB Output is correct
100 Correct 1291 ms 155876 KB Output is correct
101 Correct 1285 ms 155728 KB Output is correct
102 Correct 866 ms 155792 KB Output is correct
103 Correct 876 ms 155912 KB Output is correct
104 Correct 847 ms 155680 KB Output is correct
105 Correct 870 ms 155704 KB Output is correct
106 Correct 953 ms 155836 KB Output is correct
107 Correct 1000 ms 155812 KB Output is correct
108 Correct 963 ms 155676 KB Output is correct
109 Correct 977 ms 155892 KB Output is correct
110 Correct 1016 ms 155820 KB Output is correct
111 Correct 934 ms 155876 KB Output is correct
112 Correct 934 ms 155836 KB Output is correct
113 Correct 670 ms 155852 KB Output is correct
114 Correct 665 ms 155696 KB Output is correct