답안 #224392

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
224392	2020-04-17T18:35:27 Z	osaaateiasavtnl	Port Facility (JOI17_port_facility)	C++14	100 / 100	1753 ms	77288 KB

port_facility

#include<bits/stdc++.h>
using namespace std;
#define ii pair <int, int>
#define app push_back
#define all(a) a.begin(), a.end()
#define bp __builtin_popcount
#define ll long long
#define mp make_pair
#define f first
#define s second
#define Time (double)clock()/CLOCKS_PER_SEC
const int N = 2e6 + 7, MOD = 1000 * 1000 * 1000 + 7;
int l[N], r[N], mn[N << 2], mx[N << 2], num[N], numr[N];
bool ans[N], used[N];  
void relax(int v) {
    mx[v] = max(mx[v * 2 + 1], mx[v * 2 + 2]);
}   
void build(int v, int tl, int tr) {
    if (tl == tr) {
        if (num[tl])    
            mx[v] = r[num[tl]];
        return;
    }   
    int tm = (tl + tr) >> 1;
    build(v * 2 + 1, tl, tm); build(v * 2 + 2, tm + 1, tr);
    relax(v);
}   
void relax_left(int v) {
    mn[v] = min(mn[v * 2 + 1], mn[v * 2 + 2]);
}   
void build_left(int v, int tl, int tr) {
    if (tl == tr) {
        if (numr[tl])
            mn[v] = l[numr[tl]];
        else
            mn[v] = N;
        return;
    }
    int tm = (tl + tr) >> 1;
    build_left(v * 2 + 1, tl, tm); build_left(v * 2 + 2, tm + 1, tr);
    relax_left(v);             
}
queue <int> q;
void color(int v, int tl, int tr, int l, int r, int x, bool c) {
    if (tr < l || r < tl || mx[v] <= x)
        return;
    if (tl == tr) {
        int i = num[tl];
        if (!used[i]) {
            used[i] = 1;
            ans[i] = c;
            q.push(i);
        }
        mx[v] = 0;
        return;
    }   
    int tm = (tl + tr) >> 1;
    color(v * 2 + 1, tl, tm, l, r, x, c);
    color(v * 2 + 2, tm + 1, tr, l, r, x, c);
    relax(v);
}   
void color_left(int v, int tl, int tr, int l, int r, int x, bool c) {
    if (tr < l || r < tl || mn[v] >= x)
        return;
    if (tl == tr) {
        int i = numr[tl];
        if (!used[i]) {
            used[i] = 1;
            ans[i] = c;
            q.push(i);
        }   
        mn[v] = N;
        return;
    }   
    int tm = (tl + tr) >> 1;
    color_left(v * 2 + 1, tl, tm, l, r, x, c);
    color_left(v * 2 + 2, tm + 1, tr, l, r, x, c);
    relax_left(v);
}   
void check(vector <ii> a) {
    sort(all(a));
    vector <int> r = {N};
    for (auto e : a) {
        while (r.back() < e.f)
            r.pop_back();
        if (r.back() < e.s) {
            cout << 0 << endl;
            exit(0);
        }
        r.app(e.s);
    }   
}   
signed main() {
    #ifdef HOME
    freopen("input.txt", "r", stdin);
    #else
    #define endl '\n'
    ios_base::sync_with_stdio(0); cin.tie(0);
    #endif
    int n;
    cin >> n;
    vector <ii> a;
    vector <int> per;
    for (int i = 1; i <= n; ++i) {
        cin >> l[i] >> r[i];
        num[l[i]] = i;
        numr[r[i]] = i;
    }
    build(0, 1, N - 1);
    build_left(0, 1, N - 1);
    int ptr = 1, comp = 1;
    while (1) {
        while (ptr <= n && used[ptr])
            ++ptr;
        if (ptr == n + 1)
            break;
        comp = (comp << 1) % MOD;
        q.push(ptr);
        used[ptr] = 1;
        while (q.size()) {
            int i = q.front(); q.pop();
            color(0, 1, N - 1, l[i] + 1, r[i] - 1, r[i], ans[i] ^ 1);
            color_left(0, 1, N - 1, l[i] + 1, r[i] - 1, l[i], ans[i] ^ 1);
        }   
    }
    vector <ii> t[2];
    for (int i = 1; i <= n; ++i) 
        t[ans[i]].app(mp(l[i], r[i]));
    for (int i = 0; i < 2; ++i)
        check(t[i]);
    cout << comp << endl;
}

Subtask #1
10.0 / 10.0

#	결과	실행 시간	메모리	Grader output
1	Correct	43 ms	25080 KB	Output is correct
2	Correct	44 ms	25080 KB	Output is correct
3	Correct	46 ms	24952 KB	Output is correct
4	Correct	44 ms	25080 KB	Output is correct
5	Correct	43 ms	25088 KB	Output is correct
6	Correct	44 ms	25080 KB	Output is correct
7	Correct	44 ms	25080 KB	Output is correct
8	Correct	48 ms	25080 KB	Output is correct
9	Correct	44 ms	25080 KB	Output is correct
10	Correct	44 ms	25080 KB	Output is correct
11	Correct	45 ms	25080 KB	Output is correct
12	Correct	43 ms	25080 KB	Output is correct
13	Correct	43 ms	25080 KB	Output is correct
14	Correct	46 ms	25080 KB	Output is correct
15	Correct	45 ms	25080 KB	Output is correct
16	Correct	42 ms	25088 KB	Output is correct
17	Correct	44 ms	25080 KB	Output is correct
18	Correct	44 ms	25080 KB	Output is correct
19	Correct	43 ms	25080 KB	Output is correct
20	Correct	43 ms	25084 KB	Output is correct
21	Correct	45 ms	25080 KB	Output is correct
22	Correct	44 ms	25080 KB	Output is correct
23	Correct	43 ms	25080 KB	Output is correct
24	Correct	44 ms	25080 KB	Output is correct

Subtask #2
12.0 / 12.0

#	결과	실행 시간	메모리	Grader output
1	Correct	43 ms	25080 KB	Output is correct
2	Correct	44 ms	25080 KB	Output is correct
3	Correct	46 ms	24952 KB	Output is correct
4	Correct	44 ms	25080 KB	Output is correct
5	Correct	43 ms	25088 KB	Output is correct
6	Correct	44 ms	25080 KB	Output is correct
7	Correct	44 ms	25080 KB	Output is correct
8	Correct	48 ms	25080 KB	Output is correct
9	Correct	44 ms	25080 KB	Output is correct
10	Correct	44 ms	25080 KB	Output is correct
11	Correct	45 ms	25080 KB	Output is correct
12	Correct	43 ms	25080 KB	Output is correct
13	Correct	43 ms	25080 KB	Output is correct
14	Correct	46 ms	25080 KB	Output is correct
15	Correct	45 ms	25080 KB	Output is correct
16	Correct	42 ms	25088 KB	Output is correct
17	Correct	44 ms	25080 KB	Output is correct
18	Correct	44 ms	25080 KB	Output is correct
19	Correct	43 ms	25080 KB	Output is correct
20	Correct	43 ms	25084 KB	Output is correct
21	Correct	45 ms	25080 KB	Output is correct
22	Correct	44 ms	25080 KB	Output is correct
23	Correct	43 ms	25080 KB	Output is correct
24	Correct	44 ms	25080 KB	Output is correct
25	Correct	48 ms	25208 KB	Output is correct
26	Correct	45 ms	25208 KB	Output is correct
27	Correct	45 ms	25212 KB	Output is correct
28	Correct	48 ms	25208 KB	Output is correct
29	Correct	46 ms	25208 KB	Output is correct
30	Correct	47 ms	25208 KB	Output is correct
31	Correct	48 ms	25208 KB	Output is correct
32	Correct	46 ms	25208 KB	Output is correct
33	Correct	45 ms	25208 KB	Output is correct
34	Correct	45 ms	25208 KB	Output is correct
35	Correct	45 ms	25208 KB	Output is correct
36	Correct	47 ms	25208 KB	Output is correct
37	Correct	45 ms	25208 KB	Output is correct
38	Correct	53 ms	25208 KB	Output is correct
39	Correct	45 ms	25208 KB	Output is correct
40	Correct	46 ms	25208 KB	Output is correct
41	Correct	44 ms	25208 KB	Output is correct
42	Correct	45 ms	25208 KB	Output is correct
43	Correct	47 ms	25208 KB	Output is correct
44	Correct	47 ms	25208 KB	Output is correct

Subtask #3
56.0 / 56.0

#	결과	실행 시간	메모리	Grader output
1	Correct	43 ms	25080 KB	Output is correct
2	Correct	44 ms	25080 KB	Output is correct
3	Correct	46 ms	24952 KB	Output is correct
4	Correct	44 ms	25080 KB	Output is correct
5	Correct	43 ms	25088 KB	Output is correct
6	Correct	44 ms	25080 KB	Output is correct
7	Correct	44 ms	25080 KB	Output is correct
8	Correct	48 ms	25080 KB	Output is correct
9	Correct	44 ms	25080 KB	Output is correct
10	Correct	44 ms	25080 KB	Output is correct
11	Correct	45 ms	25080 KB	Output is correct
12	Correct	43 ms	25080 KB	Output is correct
13	Correct	43 ms	25080 KB	Output is correct
14	Correct	46 ms	25080 KB	Output is correct
15	Correct	45 ms	25080 KB	Output is correct
16	Correct	42 ms	25088 KB	Output is correct
17	Correct	44 ms	25080 KB	Output is correct
18	Correct	44 ms	25080 KB	Output is correct
19	Correct	43 ms	25080 KB	Output is correct
20	Correct	43 ms	25084 KB	Output is correct
21	Correct	45 ms	25080 KB	Output is correct
22	Correct	44 ms	25080 KB	Output is correct
23	Correct	43 ms	25080 KB	Output is correct
24	Correct	44 ms	25080 KB	Output is correct
25	Correct	48 ms	25208 KB	Output is correct
26	Correct	45 ms	25208 KB	Output is correct
27	Correct	45 ms	25212 KB	Output is correct
28	Correct	48 ms	25208 KB	Output is correct
29	Correct	46 ms	25208 KB	Output is correct
30	Correct	47 ms	25208 KB	Output is correct
31	Correct	48 ms	25208 KB	Output is correct
32	Correct	46 ms	25208 KB	Output is correct
33	Correct	45 ms	25208 KB	Output is correct
34	Correct	45 ms	25208 KB	Output is correct
35	Correct	45 ms	25208 KB	Output is correct
36	Correct	47 ms	25208 KB	Output is correct
37	Correct	45 ms	25208 KB	Output is correct
38	Correct	53 ms	25208 KB	Output is correct
39	Correct	45 ms	25208 KB	Output is correct
40	Correct	46 ms	25208 KB	Output is correct
41	Correct	44 ms	25208 KB	Output is correct
42	Correct	45 ms	25208 KB	Output is correct
43	Correct	47 ms	25208 KB	Output is correct
44	Correct	47 ms	25208 KB	Output is correct
45	Correct	159 ms	30572 KB	Output is correct
46	Correct	157 ms	30572 KB	Output is correct
47	Correct	168 ms	30632 KB	Output is correct
48	Correct	164 ms	30700 KB	Output is correct
49	Correct	162 ms	30556 KB	Output is correct
50	Correct	162 ms	30572 KB	Output is correct
51	Correct	149 ms	30664 KB	Output is correct
52	Correct	147 ms	30704 KB	Output is correct
53	Correct	147 ms	30320 KB	Output is correct
54	Correct	108 ms	29956 KB	Output is correct
55	Correct	97 ms	29676 KB	Output is correct
56	Correct	120 ms	29668 KB	Output is correct
57	Correct	153 ms	30448 KB	Output is correct
58	Correct	149 ms	30704 KB	Output is correct
59	Correct	177 ms	30964 KB	Output is correct
60	Correct	167 ms	30812 KB	Output is correct
61	Correct	174 ms	30512 KB	Output is correct
62	Correct	150 ms	30700 KB	Output is correct
63	Correct	159 ms	30736 KB	Output is correct
64	Correct	162 ms	30468 KB	Output is correct
65	Correct	93 ms	30032 KB	Output is correct
66	Correct	117 ms	30060 KB	Output is correct
67	Correct	111 ms	30308 KB	Output is correct
68	Correct	116 ms	30184 KB	Output is correct
69	Correct	111 ms	30700 KB	Output is correct
70	Correct	110 ms	30652 KB	Output is correct
71	Correct	111 ms	29676 KB	Output is correct
72	Correct	113 ms	29680 KB	Output is correct
73	Correct	110 ms	30184 KB	Output is correct
74	Correct	120 ms	30188 KB	Output is correct
75	Correct	149 ms	30444 KB	Output is correct
76	Correct	145 ms	30420 KB	Output is correct
77	Correct	152 ms	30444 KB	Output is correct
78	Correct	160 ms	30572 KB	Output is correct
79	Correct	155 ms	30596 KB	Output is correct

Subtask #4
22.0 / 22.0

#	결과	실행 시간	메모리	Grader output
1	Correct	43 ms	25080 KB	Output is correct
2	Correct	44 ms	25080 KB	Output is correct
3	Correct	46 ms	24952 KB	Output is correct
4	Correct	44 ms	25080 KB	Output is correct
5	Correct	43 ms	25088 KB	Output is correct
6	Correct	44 ms	25080 KB	Output is correct
7	Correct	44 ms	25080 KB	Output is correct
8	Correct	48 ms	25080 KB	Output is correct
9	Correct	44 ms	25080 KB	Output is correct
10	Correct	44 ms	25080 KB	Output is correct
11	Correct	45 ms	25080 KB	Output is correct
12	Correct	43 ms	25080 KB	Output is correct
13	Correct	43 ms	25080 KB	Output is correct
14	Correct	46 ms	25080 KB	Output is correct
15	Correct	45 ms	25080 KB	Output is correct
16	Correct	42 ms	25088 KB	Output is correct
17	Correct	44 ms	25080 KB	Output is correct
18	Correct	44 ms	25080 KB	Output is correct
19	Correct	43 ms	25080 KB	Output is correct
20	Correct	43 ms	25084 KB	Output is correct
21	Correct	45 ms	25080 KB	Output is correct
22	Correct	44 ms	25080 KB	Output is correct
23	Correct	43 ms	25080 KB	Output is correct
24	Correct	44 ms	25080 KB	Output is correct
25	Correct	48 ms	25208 KB	Output is correct
26	Correct	45 ms	25208 KB	Output is correct
27	Correct	45 ms	25212 KB	Output is correct
28	Correct	48 ms	25208 KB	Output is correct
29	Correct	46 ms	25208 KB	Output is correct
30	Correct	47 ms	25208 KB	Output is correct
31	Correct	48 ms	25208 KB	Output is correct
32	Correct	46 ms	25208 KB	Output is correct
33	Correct	45 ms	25208 KB	Output is correct
34	Correct	45 ms	25208 KB	Output is correct
35	Correct	45 ms	25208 KB	Output is correct
36	Correct	47 ms	25208 KB	Output is correct
37	Correct	45 ms	25208 KB	Output is correct
38	Correct	53 ms	25208 KB	Output is correct
39	Correct	45 ms	25208 KB	Output is correct
40	Correct	46 ms	25208 KB	Output is correct
41	Correct	44 ms	25208 KB	Output is correct
42	Correct	45 ms	25208 KB	Output is correct
43	Correct	47 ms	25208 KB	Output is correct
44	Correct	47 ms	25208 KB	Output is correct
45	Correct	159 ms	30572 KB	Output is correct
46	Correct	157 ms	30572 KB	Output is correct
47	Correct	168 ms	30632 KB	Output is correct
48	Correct	164 ms	30700 KB	Output is correct
49	Correct	162 ms	30556 KB	Output is correct
50	Correct	162 ms	30572 KB	Output is correct
51	Correct	149 ms	30664 KB	Output is correct
52	Correct	147 ms	30704 KB	Output is correct
53	Correct	147 ms	30320 KB	Output is correct
54	Correct	108 ms	29956 KB	Output is correct
55	Correct	97 ms	29676 KB	Output is correct
56	Correct	120 ms	29668 KB	Output is correct
57	Correct	153 ms	30448 KB	Output is correct
58	Correct	149 ms	30704 KB	Output is correct
59	Correct	177 ms	30964 KB	Output is correct
60	Correct	167 ms	30812 KB	Output is correct
61	Correct	174 ms	30512 KB	Output is correct
62	Correct	150 ms	30700 KB	Output is correct
63	Correct	159 ms	30736 KB	Output is correct
64	Correct	162 ms	30468 KB	Output is correct
65	Correct	93 ms	30032 KB	Output is correct
66	Correct	117 ms	30060 KB	Output is correct
67	Correct	111 ms	30308 KB	Output is correct
68	Correct	116 ms	30184 KB	Output is correct
69	Correct	111 ms	30700 KB	Output is correct
70	Correct	110 ms	30652 KB	Output is correct
71	Correct	111 ms	29676 KB	Output is correct
72	Correct	113 ms	29680 KB	Output is correct
73	Correct	110 ms	30184 KB	Output is correct
74	Correct	120 ms	30188 KB	Output is correct
75	Correct	149 ms	30444 KB	Output is correct
76	Correct	145 ms	30420 KB	Output is correct
77	Correct	152 ms	30444 KB	Output is correct
78	Correct	160 ms	30572 KB	Output is correct
79	Correct	155 ms	30596 KB	Output is correct
80	Correct	1478 ms	73792 KB	Output is correct
81	Correct	1450 ms	73924 KB	Output is correct
82	Correct	1514 ms	73908 KB	Output is correct
83	Correct	1466 ms	73920 KB	Output is correct
84	Correct	1521 ms	73920 KB	Output is correct
85	Correct	1425 ms	73792 KB	Output is correct
86	Correct	1423 ms	74044 KB	Output is correct
87	Correct	1399 ms	74080 KB	Output is correct
88	Correct	1362 ms	70100 KB	Output is correct
89	Correct	740 ms	67240 KB	Output is correct
90	Correct	772 ms	65340 KB	Output is correct
91	Correct	805 ms	65044 KB	Output is correct
92	Correct	1586 ms	71240 KB	Output is correct
93	Correct	1463 ms	74432 KB	Output is correct
94	Correct	1753 ms	76628 KB	Output is correct
95	Correct	1586 ms	74036 KB	Output is correct
96	Correct	1466 ms	73724 KB	Output is correct
97	Correct	1528 ms	77092 KB	Output is correct
98	Correct	1453 ms	73044 KB	Output is correct
99	Correct	1337 ms	77288 KB	Output is correct
100	Correct	871 ms	65292 KB	Output is correct
101	Correct	1166 ms	66784 KB	Output is correct
102	Correct	921 ms	69656 KB	Output is correct
103	Correct	1025 ms	70296 KB	Output is correct
104	Correct	950 ms	73448 KB	Output is correct
105	Correct	978 ms	73576 KB	Output is correct
106	Correct	851 ms	63304 KB	Output is correct
107	Correct	836 ms	63348 KB	Output is correct
108	Correct	827 ms	69128 KB	Output is correct
109	Correct	853 ms	69256 KB	Output is correct
110	Correct	1274 ms	71188 KB	Output is correct
111	Correct	1330 ms	70996 KB	Output is correct
112	Correct	1387 ms	70904 KB	Output is correct
113	Correct	1501 ms	73916 KB	Output is correct
114	Correct	1510 ms	73404 KB	Output is correct

답안 #224392

Compilation message

Subtask #1 10.0 / 10.0

Subtask #2 12.0 / 12.0

Subtask #3 56.0 / 56.0

Subtask #4 22.0 / 22.0

Subtask #1
10.0 / 10.0

Subtask #2
12.0 / 12.0

Subtask #3
56.0 / 56.0

Subtask #4
22.0 / 22.0