oj.uz

Submission #39757

# Submission time Handle Problem Language Result Execution time Memory
39757 2018-01-18T08:18:05 Z aome Port Facility (JOI17_port_facility) C++14
78 / 100
 6000 ms 946680 KB 
#include <bits/stdc++.h>
using namespace std;

typedef pair<int, int> ii;
typedef pair<int, bool> p;
const int N = 1000005;
const int MOD = 1e9 + 7;

int n, cnt, c[N];
int it[8 * N];
int prv[25 * N];
p val[25 * N];
vector<ii> a;
vector<p> G[N];

void NO() {
    cout << 0 << '\n'; exit(0);
}

void addEdge(int u, int v, bool w) {
    G[u].push_back(p(v, w)), G[v].push_back(p(u, w));
}

void upd(int i, int l, int r, int x, int id) {
    ++cnt, prv[cnt] = it[i], val[cnt] = p(id, 0), it[i] = cnt;
    if (l == r) return;
    int mid = (l + r) >> 1;
    if (mid >= x) upd(i << 1, l, mid, x, id);
    else upd(i << 1 | 1, mid + 1, r, x, id);
}

void get(int i, int l, int r, int u, int v, int id) {
    if (l > v || u > r) return;
    if (u <= l && r <= v) {
        if (!it[i]) return;
        int cur = it[i];
        while (cur) {
            addEdge(id, val[cur].first, val[cur].second ^ 1), cur = prv[cur];
        }
        val[it[i]] = ii(id, 1), prv[it[i]] = 0;
        return;
    }
    int mid = (l + r) >> 1;
    get(i << 1, l, mid, u, v, id);
    get(i << 1 | 1, mid + 1, r, u, v, id);
}

void dfs(int u) {
    for (auto v : G[u]) {
        if (c[v.first] != -1 && (c[u] ^ v.second) != c[v.first]) NO();
        if (c[v.first] != -1) continue;
        c[v.first] = c[u] ^ v.second, dfs(v.first);
    }
}

int main() {
    scanf("%d", &n);
    for (int i = 0; i < n; ++i) {
        int x, y;
        scanf("%d %d", &x, &y);
        a.push_back(ii(x, y));
    }
    sort(a.begin(), a.end());
    for (int i = 0; i < n; ++i) {
        get(1, 1, 2 * n, a[i].first, a[i].second, i);
        upd(1, 1, 2 * n, a[i].second, i);
    }
    memset(c, -1, sizeof(c));
    int num = 0;
    for (int i = 0; i < n; ++i) {
        if (c[i] != -1) continue;
        c[i] = 1, dfs(i), num++;
    }
    int res = 1;
    for (int i = 0; i < num; ++i) res = 1LL * res * 2 % MOD;
    cout << res << '\n';
}

Compilation message

port_facility.cpp: In function 'int main()':
port_facility.cpp:57:20: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
     scanf("%d", &n);
                    ^
port_facility.cpp:60:31: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
         scanf("%d %d", &x, &y);
                               ^

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 9 ms 353588 KB Output is correct
2 Correct 10 ms 353588 KB Output is correct
3 Correct 6 ms 353588 KB Output is correct
4 Correct 3 ms 353588 KB Output is correct
5 Correct 4 ms 353588 KB Output is correct
6 Correct 12 ms 353588 KB Output is correct
7 Correct 13 ms 353588 KB Output is correct
8 Correct 6 ms 353588 KB Output is correct
9 Correct 3 ms 353588 KB Output is correct
10 Correct 6 ms 353588 KB Output is correct
11 Correct 3 ms 353588 KB Output is correct
12 Correct 6 ms 353588 KB Output is correct
13 Correct 5 ms 353588 KB Output is correct
14 Correct 6 ms 353588 KB Output is correct
15 Correct 14 ms 353588 KB Output is correct
16 Correct 7 ms 353588 KB Output is correct
17 Correct 10 ms 353588 KB Output is correct
18 Correct 7 ms 353588 KB Output is correct
19 Correct 6 ms 353588 KB Output is correct
20 Correct 12 ms 353588 KB Output is correct
21 Correct 7 ms 353588 KB Output is correct
22 Correct 10 ms 353588 KB Output is correct
23 Correct 6 ms 353588 KB Output is correct
24 Correct 13 ms 353588 KB Output is correct

Subtask #2
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 9 ms 353588 KB Output is correct
2 Correct 10 ms 353588 KB Output is correct
3 Correct 6 ms 353588 KB Output is correct
4 Correct 3 ms 353588 KB Output is correct
5 Correct 4 ms 353588 KB Output is correct
6 Correct 12 ms 353588 KB Output is correct
7 Correct 13 ms 353588 KB Output is correct
8 Correct 6 ms 353588 KB Output is correct
9 Correct 3 ms 353588 KB Output is correct
10 Correct 6 ms 353588 KB Output is correct
11 Correct 3 ms 353588 KB Output is correct
12 Correct 6 ms 353588 KB Output is correct
13 Correct 5 ms 353588 KB Output is correct
14 Correct 6 ms 353588 KB Output is correct
15 Correct 14 ms 353588 KB Output is correct
16 Correct 7 ms 353588 KB Output is correct
17 Correct 10 ms 353588 KB Output is correct
18 Correct 7 ms 353588 KB Output is correct
19 Correct 6 ms 353588 KB Output is correct
20 Correct 12 ms 353588 KB Output is correct
21 Correct 7 ms 353588 KB Output is correct
22 Correct 10 ms 353588 KB Output is correct
23 Correct 6 ms 353588 KB Output is correct
24 Correct 13 ms 353588 KB Output is correct
25 Correct 9 ms 353720 KB Output is correct
26 Correct 8 ms 353720 KB Output is correct
27 Correct 12 ms 353720 KB Output is correct
28 Correct 13 ms 353720 KB Output is correct
29 Correct 7 ms 353720 KB Output is correct
30 Correct 9 ms 353720 KB Output is correct
31 Correct 8 ms 353720 KB Output is correct
32 Correct 8 ms 353720 KB Output is correct
33 Correct 11 ms 353720 KB Output is correct
34 Correct 3 ms 353720 KB Output is correct
35 Correct 7 ms 353588 KB Output is correct
36 Correct 10 ms 353588 KB Output is correct
37 Correct 6 ms 354116 KB Output is correct
38 Correct 6 ms 354120 KB Output is correct
39 Correct 6 ms 353720 KB Output is correct
40 Correct 15 ms 353588 KB Output is correct
41 Correct 12 ms 353720 KB Output is correct
42 Correct 7 ms 353720 KB Output is correct
43 Correct 10 ms 353720 KB Output is correct
44 Correct 3 ms 353720 KB Output is correct

Subtask #3
56.0 / 56.0

# Verdict Execution time Memory Grader output
1 Correct 9 ms 353588 KB Output is correct
2 Correct 10 ms 353588 KB Output is correct
3 Correct 6 ms 353588 KB Output is correct
4 Correct 3 ms 353588 KB Output is correct
5 Correct 4 ms 353588 KB Output is correct
6 Correct 12 ms 353588 KB Output is correct
7 Correct 13 ms 353588 KB Output is correct
8 Correct 6 ms 353588 KB Output is correct
9 Correct 3 ms 353588 KB Output is correct
10 Correct 6 ms 353588 KB Output is correct
11 Correct 3 ms 353588 KB Output is correct
12 Correct 6 ms 353588 KB Output is correct
13 Correct 5 ms 353588 KB Output is correct
14 Correct 6 ms 353588 KB Output is correct
15 Correct 14 ms 353588 KB Output is correct
16 Correct 7 ms 353588 KB Output is correct
17 Correct 10 ms 353588 KB Output is correct
18 Correct 7 ms 353588 KB Output is correct
19 Correct 6 ms 353588 KB Output is correct
20 Correct 12 ms 353588 KB Output is correct
21 Correct 7 ms 353588 KB Output is correct
22 Correct 10 ms 353588 KB Output is correct
23 Correct 6 ms 353588 KB Output is correct
24 Correct 13 ms 353588 KB Output is correct
25 Correct 9 ms 353720 KB Output is correct
26 Correct 8 ms 353720 KB Output is correct
27 Correct 12 ms 353720 KB Output is correct
28 Correct 13 ms 353720 KB Output is correct
29 Correct 7 ms 353720 KB Output is correct
30 Correct 9 ms 353720 KB Output is correct
31 Correct 8 ms 353720 KB Output is correct
32 Correct 8 ms 353720 KB Output is correct
33 Correct 11 ms 353720 KB Output is correct
34 Correct 3 ms 353720 KB Output is correct
35 Correct 7 ms 353588 KB Output is correct
36 Correct 10 ms 353588 KB Output is correct
37 Correct 6 ms 354116 KB Output is correct
38 Correct 6 ms 354120 KB Output is correct
39 Correct 6 ms 353720 KB Output is correct
40 Correct 15 ms 353588 KB Output is correct
41 Correct 12 ms 353720 KB Output is correct
42 Correct 7 ms 353720 KB Output is correct
43 Correct 10 ms 353720 KB Output is correct
44 Correct 3 ms 353720 KB Output is correct
45 Correct 111 ms 360680 KB Output is correct
46 Correct 111 ms 361812 KB Output is correct
47 Correct 113 ms 360104 KB Output is correct
48 Correct 123 ms 361812 KB Output is correct
49 Correct 94 ms 360500 KB Output is correct
50 Correct 103 ms 361564 KB Output is correct
51 Correct 103 ms 361696 KB Output is correct
52 Correct 65 ms 355208 KB Output is correct
53 Correct 68 ms 355208 KB Output is correct
54 Correct 195 ms 389972 KB Output is correct
55 Correct 178 ms 388568 KB Output is correct
56 Correct 178 ms 388636 KB Output is correct
57 Correct 81 ms 357728 KB Output is correct
58 Correct 70 ms 355208 KB Output is correct
59 Correct 90 ms 355208 KB Output is correct
60 Correct 96 ms 356672 KB Output is correct
61 Correct 95 ms 357992 KB Output is correct
62 Correct 78 ms 356836 KB Output is correct
63 Correct 86 ms 357412 KB Output is correct
64 Correct 110 ms 358456 KB Output is correct
65 Correct 381 ms 406236 KB Output is correct
66 Correct 417 ms 406032 KB Output is correct
67 Correct 151 ms 373556 KB Output is correct
68 Correct 132 ms 373428 KB Output is correct
69 Correct 145 ms 374268 KB Output is correct
70 Correct 161 ms 374260 KB Output is correct
71 Correct 95 ms 360156 KB Output is correct
72 Correct 98 ms 360152 KB Output is correct
73 Correct 90 ms 361904 KB Output is correct
74 Correct 102 ms 361904 KB Output is correct
75 Correct 67 ms 360724 KB Output is correct
76 Correct 107 ms 360728 KB Output is correct
77 Correct 87 ms 360728 KB Output is correct
78 Correct 116 ms 361604 KB Output is correct
79 Correct 124 ms 360800 KB Output is correct

Subtask #4
0 / 22.0

# Verdict Execution time Memory Grader output
1 Correct 9 ms 353588 KB Output is correct
2 Correct 10 ms 353588 KB Output is correct
3 Correct 6 ms 353588 KB Output is correct
4 Correct 3 ms 353588 KB Output is correct
5 Correct 4 ms 353588 KB Output is correct
6 Correct 12 ms 353588 KB Output is correct
7 Correct 13 ms 353588 KB Output is correct
8 Correct 6 ms 353588 KB Output is correct
9 Correct 3 ms 353588 KB Output is correct
10 Correct 6 ms 353588 KB Output is correct
11 Correct 3 ms 353588 KB Output is correct
12 Correct 6 ms 353588 KB Output is correct
13 Correct 5 ms 353588 KB Output is correct
14 Correct 6 ms 353588 KB Output is correct
15 Correct 14 ms 353588 KB Output is correct
16 Correct 7 ms 353588 KB Output is correct
17 Correct 10 ms 353588 KB Output is correct
18 Correct 7 ms 353588 KB Output is correct
19 Correct 6 ms 353588 KB Output is correct
20 Correct 12 ms 353588 KB Output is correct
21 Correct 7 ms 353588 KB Output is correct
22 Correct 10 ms 353588 KB Output is correct
23 Correct 6 ms 353588 KB Output is correct
24 Correct 13 ms 353588 KB Output is correct
25 Correct 9 ms 353720 KB Output is correct
26 Correct 8 ms 353720 KB Output is correct
27 Correct 12 ms 353720 KB Output is correct
28 Correct 13 ms 353720 KB Output is correct
29 Correct 7 ms 353720 KB Output is correct
30 Correct 9 ms 353720 KB Output is correct
31 Correct 8 ms 353720 KB Output is correct
32 Correct 8 ms 353720 KB Output is correct
33 Correct 11 ms 353720 KB Output is correct
34 Correct 3 ms 353720 KB Output is correct
35 Correct 7 ms 353588 KB Output is correct
36 Correct 10 ms 353588 KB Output is correct
37 Correct 6 ms 354116 KB Output is correct
38 Correct 6 ms 354120 KB Output is correct
39 Correct 6 ms 353720 KB Output is correct
40 Correct 15 ms 353588 KB Output is correct
41 Correct 12 ms 353720 KB Output is correct
42 Correct 7 ms 353720 KB Output is correct
43 Correct 10 ms 353720 KB Output is correct
44 Correct 3 ms 353720 KB Output is correct
45 Correct 111 ms 360680 KB Output is correct
46 Correct 111 ms 361812 KB Output is correct
47 Correct 113 ms 360104 KB Output is correct
48 Correct 123 ms 361812 KB Output is correct
49 Correct 94 ms 360500 KB Output is correct
50 Correct 103 ms 361564 KB Output is correct
51 Correct 103 ms 361696 KB Output is correct
52 Correct 65 ms 355208 KB Output is correct
53 Correct 68 ms 355208 KB Output is correct
54 Correct 195 ms 389972 KB Output is correct
55 Correct 178 ms 388568 KB Output is correct
56 Correct 178 ms 388636 KB Output is correct
57 Correct 81 ms 357728 KB Output is correct
58 Correct 70 ms 355208 KB Output is correct
59 Correct 90 ms 355208 KB Output is correct
60 Correct 96 ms 356672 KB Output is correct
61 Correct 95 ms 357992 KB Output is correct
62 Correct 78 ms 356836 KB Output is correct
63 Correct 86 ms 357412 KB Output is correct
64 Correct 110 ms 358456 KB Output is correct
65 Correct 381 ms 406236 KB Output is correct
66 Correct 417 ms 406032 KB Output is correct
67 Correct 151 ms 373556 KB Output is correct
68 Correct 132 ms 373428 KB Output is correct
69 Correct 145 ms 374268 KB Output is correct
70 Correct 161 ms 374260 KB Output is correct
71 Correct 95 ms 360156 KB Output is correct
72 Correct 98 ms 360152 KB Output is correct
73 Correct 90 ms 361904 KB Output is correct
74 Correct 102 ms 361904 KB Output is correct
75 Correct 67 ms 360724 KB Output is correct
76 Correct 107 ms 360728 KB Output is correct
77 Correct 87 ms 360728 KB Output is correct
78 Correct 116 ms 361604 KB Output is correct
79 Correct 124 ms 360800 KB Output is correct
80 Correct 1164 ms 431000 KB Output is correct
81 Correct 1136 ms 429280 KB Output is correct
82 Correct 1140 ms 418344 KB Output is correct
83 Correct 1282 ms 429816 KB Output is correct
84 Correct 1168 ms 431008 KB Output is correct
85 Correct 1105 ms 426096 KB Output is correct
86 Correct 1183 ms 433124 KB Output is correct
87 Correct 694 ms 365960 KB Output is correct
88 Correct 831 ms 365960 KB Output is correct
89 Correct 2139 ms 781400 KB Output is correct
90 Correct 2064 ms 764908 KB Output is correct
91 Correct 2137 ms 734204 KB Output is correct
92 Correct 731 ms 393012 KB Output is correct
93 Correct 645 ms 365960 KB Output is correct
94 Correct 895 ms 373476 KB Output is correct
95 Correct 965 ms 391824 KB Output is correct
96 Correct 1025 ms 407004 KB Output is correct
97 Correct 858 ms 381924 KB Output is correct
98 Correct 1042 ms 396304 KB Output is correct
99 Correct 1012 ms 417628 KB Output is correct
100 Execution timed out 6000 ms 946680 KB Execution timed out
101 Halted 0 ms 0 KB -