Submission #889055

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
889055	2023-12-18T17:50:04 Z	vjudge1	Port Facility (JOI17_port_facility)	C++17	100 / 100	2729 ms	223408 KB

port_facility

    #include "bits/stdc++.h"
    using namespace std;
     
    #define ar array
    typedef long long ll;
     
    const int N = 2e6 + 5;
    const int mod = 1e9 + 7;
     
    struct ST{
    	int tree[N << 2];
    	
    	ST(){
    		for(int i=0;i<(N<<2);i++) tree[i] = -N;
    	}
    	
    	void set(int i, int v, int lx = 0, int rx = N, int x = 1){
    		if(lx == rx){
    			tree[x] = v;
    			return;
    		}
    		
    		int m = (lx + rx) >> 1;
    		if(i <= m) set(i, v, lx, m, x << 1);
    		else set(i, v, m + 1, rx, x << 1 | 1);
    		tree[x] = max(tree[x << 1], tree[x << 1 | 1]);
    	}
    	
    	int get(int l, int r, int lx = 0, int rx = N, int x = 1){
    		if(lx > r || rx < l) return -N;
    		if(lx >= l && rx <= r) return tree[x];
    		int m = (lx + rx) >> 1;
    		return max(get(l, r, lx, m, x << 1), get(l, r, m + 1, rx, x << 1 | 1));
    	}
    }Min, Max;
     
    int a[N], b[N], used[N], c[N];
    int id[N];
     
    signed main(){
    	ios::sync_with_stdio(0); cin.tie(0);
    	
    	int n; cin >> n;
    	for(int i=0;i<n;i++){
    		cin >> a[i] >> b[i];
    		Min.set(b[i], -a[i]);
    		Max.set(a[i], b[i]);
    		id[a[i]] = id[b[i]] = i;
    	}
    	
    	vector<int> t[2];
    	function<void(int)> dfs = [&](int u){
    		Max.set(a[u], -N), Min.set(b[u], -N);
    		used[u] = 1;
    		t[c[u]].push_back(u);
    		while(true){
    			int i = Max.get(a[u], b[u]);
    			if(b[u] < i){
    				c[id[i]] = c[u] ^ 1;
    				dfs(id[i]);
    				continue;
    			}
    			
    			i = -Min.get(a[u], b[u]);
    			if(i < a[u]){
    				c[id[i]] = c[u] ^ 1;
    				dfs(id[i]);
    				continue;
    			}
    			
    			break;
    		}
    	};
    	
    	auto check = [&](vector<int>& t){
    		for(auto i : t){
    			Min.set(b[i], -a[i]);
    			Max.set(a[i], b[i]);
    		}
    		
    		for(auto u : t){
    			int i = Max.get(a[u], b[u]);
    			if(b[u] < i){
    				return true;
    			}
    			
    			i = -Min.get(a[u], b[u]);
    			if(i < a[u]){
    				return true;
    			}
    		}
    		
    		for(auto i : t){
    			Min.set(b[i], -N);
    			Max.set(a[i], -N);
    		}
    		
    		return false;
    	};
    	
    	int res = 1;
    	for(int i=0;i<n;i++){
    		if(used[i]) continue;
    		t[0].clear(), t[1].clear();
    		dfs(i);
    		if(check(t[0]) || check(t[1])){
    			cout<<0<<"\n";
    			return 0;
    		}
    		
    		res = res * 2ll % mod;
    	}
    	
    	cout<<res<<"\n";
    }

Subtask #1
10.0 / 10.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	16 ms	69208 KB	Output is correct
2	Correct	12 ms	69212 KB	Output is correct
3	Correct	12 ms	69212 KB	Output is correct
4	Correct	12 ms	69096 KB	Output is correct
5	Correct	12 ms	69212 KB	Output is correct
6	Correct	12 ms	69168 KB	Output is correct
7	Correct	12 ms	69212 KB	Output is correct
8	Correct	12 ms	69212 KB	Output is correct
9	Correct	12 ms	69212 KB	Output is correct
10	Correct	13 ms	69208 KB	Output is correct
11	Correct	12 ms	69208 KB	Output is correct
12	Correct	15 ms	69208 KB	Output is correct
13	Correct	12 ms	69208 KB	Output is correct
14	Correct	12 ms	69208 KB	Output is correct
15	Correct	12 ms	69212 KB	Output is correct
16	Correct	12 ms	69212 KB	Output is correct
17	Correct	12 ms	69212 KB	Output is correct
18	Correct	12 ms	69212 KB	Output is correct
19	Correct	13 ms	69072 KB	Output is correct
20	Correct	12 ms	69064 KB	Output is correct
21	Correct	12 ms	69212 KB	Output is correct
22	Correct	12 ms	69212 KB	Output is correct
23	Correct	12 ms	69212 KB	Output is correct
24	Correct	13 ms	69212 KB	Output is correct

Subtask #2
12.0 / 12.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	16 ms	69208 KB	Output is correct
2	Correct	12 ms	69212 KB	Output is correct
3	Correct	12 ms	69212 KB	Output is correct
4	Correct	12 ms	69096 KB	Output is correct
5	Correct	12 ms	69212 KB	Output is correct
6	Correct	12 ms	69168 KB	Output is correct
7	Correct	12 ms	69212 KB	Output is correct
8	Correct	12 ms	69212 KB	Output is correct
9	Correct	12 ms	69212 KB	Output is correct
10	Correct	13 ms	69208 KB	Output is correct
11	Correct	12 ms	69208 KB	Output is correct
12	Correct	15 ms	69208 KB	Output is correct
13	Correct	12 ms	69208 KB	Output is correct
14	Correct	12 ms	69208 KB	Output is correct
15	Correct	12 ms	69212 KB	Output is correct
16	Correct	12 ms	69212 KB	Output is correct
17	Correct	12 ms	69212 KB	Output is correct
18	Correct	12 ms	69212 KB	Output is correct
19	Correct	13 ms	69072 KB	Output is correct
20	Correct	12 ms	69064 KB	Output is correct
21	Correct	12 ms	69212 KB	Output is correct
22	Correct	12 ms	69212 KB	Output is correct
23	Correct	12 ms	69212 KB	Output is correct
24	Correct	13 ms	69212 KB	Output is correct
25	Correct	16 ms	69212 KB	Output is correct
26	Correct	16 ms	69212 KB	Output is correct
27	Correct	15 ms	69212 KB	Output is correct
28	Correct	15 ms	69212 KB	Output is correct
29	Correct	15 ms	69208 KB	Output is correct
30	Correct	15 ms	69212 KB	Output is correct
31	Correct	15 ms	69228 KB	Output is correct
32	Correct	16 ms	69212 KB	Output is correct
33	Correct	14 ms	69208 KB	Output is correct
34	Correct	14 ms	69212 KB	Output is correct
35	Correct	15 ms	69212 KB	Output is correct
36	Correct	15 ms	69212 KB	Output is correct
37	Correct	14 ms	69468 KB	Output is correct
38	Correct	14 ms	69208 KB	Output is correct
39	Correct	15 ms	69212 KB	Output is correct
40	Correct	15 ms	69136 KB	Output is correct
41	Correct	15 ms	69468 KB	Output is correct
42	Correct	18 ms	69356 KB	Output is correct
43	Correct	14 ms	69484 KB	Output is correct
44	Correct	15 ms	69468 KB	Output is correct

Subtask #3
56.0 / 56.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	16 ms	69208 KB	Output is correct
2	Correct	12 ms	69212 KB	Output is correct
3	Correct	12 ms	69212 KB	Output is correct
4	Correct	12 ms	69096 KB	Output is correct
5	Correct	12 ms	69212 KB	Output is correct
6	Correct	12 ms	69168 KB	Output is correct
7	Correct	12 ms	69212 KB	Output is correct
8	Correct	12 ms	69212 KB	Output is correct
9	Correct	12 ms	69212 KB	Output is correct
10	Correct	13 ms	69208 KB	Output is correct
11	Correct	12 ms	69208 KB	Output is correct
12	Correct	15 ms	69208 KB	Output is correct
13	Correct	12 ms	69208 KB	Output is correct
14	Correct	12 ms	69208 KB	Output is correct
15	Correct	12 ms	69212 KB	Output is correct
16	Correct	12 ms	69212 KB	Output is correct
17	Correct	12 ms	69212 KB	Output is correct
18	Correct	12 ms	69212 KB	Output is correct
19	Correct	13 ms	69072 KB	Output is correct
20	Correct	12 ms	69064 KB	Output is correct
21	Correct	12 ms	69212 KB	Output is correct
22	Correct	12 ms	69212 KB	Output is correct
23	Correct	12 ms	69212 KB	Output is correct
24	Correct	13 ms	69212 KB	Output is correct
25	Correct	16 ms	69212 KB	Output is correct
26	Correct	16 ms	69212 KB	Output is correct
27	Correct	15 ms	69212 KB	Output is correct
28	Correct	15 ms	69212 KB	Output is correct
29	Correct	15 ms	69208 KB	Output is correct
30	Correct	15 ms	69212 KB	Output is correct
31	Correct	15 ms	69228 KB	Output is correct
32	Correct	16 ms	69212 KB	Output is correct
33	Correct	14 ms	69208 KB	Output is correct
34	Correct	14 ms	69212 KB	Output is correct
35	Correct	15 ms	69212 KB	Output is correct
36	Correct	15 ms	69212 KB	Output is correct
37	Correct	14 ms	69468 KB	Output is correct
38	Correct	14 ms	69208 KB	Output is correct
39	Correct	15 ms	69212 KB	Output is correct
40	Correct	15 ms	69136 KB	Output is correct
41	Correct	15 ms	69468 KB	Output is correct
42	Correct	18 ms	69356 KB	Output is correct
43	Correct	14 ms	69484 KB	Output is correct
44	Correct	15 ms	69468 KB	Output is correct
45	Correct	176 ms	75088 KB	Output is correct
46	Correct	178 ms	76788 KB	Output is correct
47	Correct	175 ms	74108 KB	Output is correct
48	Correct	179 ms	76628 KB	Output is correct
49	Correct	178 ms	74284 KB	Output is correct
50	Correct	82 ms	76500 KB	Output is correct
51	Correct	81 ms	75772 KB	Output is correct
52	Correct	160 ms	73056 KB	Output is correct
53	Correct	196 ms	73068 KB	Output is correct
54	Correct	135 ms	85204 KB	Output is correct
55	Correct	88 ms	79184 KB	Output is correct
56	Correct	89 ms	79188 KB	Output is correct
57	Correct	161 ms	73480 KB	Output is correct
58	Correct	176 ms	73032 KB	Output is correct
59	Correct	178 ms	73480 KB	Output is correct
60	Correct	180 ms	73480 KB	Output is correct
61	Correct	180 ms	73480 KB	Output is correct
62	Correct	72 ms	73556 KB	Output is correct
63	Correct	64 ms	73552 KB	Output is correct
64	Correct	62 ms	73452 KB	Output is correct
65	Correct	162 ms	84952 KB	Output is correct
66	Correct	165 ms	85708 KB	Output is correct
67	Correct	177 ms	79464 KB	Output is correct
68	Correct	176 ms	79480 KB	Output is correct
69	Correct	183 ms	79308 KB	Output is correct
70	Correct	175 ms	78872 KB	Output is correct
71	Correct	182 ms	84984 KB	Output is correct
72	Correct	182 ms	85196 KB	Output is correct
73	Correct	173 ms	81616 KB	Output is correct
74	Correct	174 ms	81640 KB	Output is correct
75	Correct	151 ms	80360 KB	Output is correct
76	Correct	146 ms	84944 KB	Output is correct
77	Correct	105 ms	84940 KB	Output is correct
78	Correct	178 ms	76372 KB	Output is correct
79	Correct	181 ms	75248 KB	Output is correct

Subtask #4
22.0 / 22.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	16 ms	69208 KB	Output is correct
2	Correct	12 ms	69212 KB	Output is correct
3	Correct	12 ms	69212 KB	Output is correct
4	Correct	12 ms	69096 KB	Output is correct
5	Correct	12 ms	69212 KB	Output is correct
6	Correct	12 ms	69168 KB	Output is correct
7	Correct	12 ms	69212 KB	Output is correct
8	Correct	12 ms	69212 KB	Output is correct
9	Correct	12 ms	69212 KB	Output is correct
10	Correct	13 ms	69208 KB	Output is correct
11	Correct	12 ms	69208 KB	Output is correct
12	Correct	15 ms	69208 KB	Output is correct
13	Correct	12 ms	69208 KB	Output is correct
14	Correct	12 ms	69208 KB	Output is correct
15	Correct	12 ms	69212 KB	Output is correct
16	Correct	12 ms	69212 KB	Output is correct
17	Correct	12 ms	69212 KB	Output is correct
18	Correct	12 ms	69212 KB	Output is correct
19	Correct	13 ms	69072 KB	Output is correct
20	Correct	12 ms	69064 KB	Output is correct
21	Correct	12 ms	69212 KB	Output is correct
22	Correct	12 ms	69212 KB	Output is correct
23	Correct	12 ms	69212 KB	Output is correct
24	Correct	13 ms	69212 KB	Output is correct
25	Correct	16 ms	69212 KB	Output is correct
26	Correct	16 ms	69212 KB	Output is correct
27	Correct	15 ms	69212 KB	Output is correct
28	Correct	15 ms	69212 KB	Output is correct
29	Correct	15 ms	69208 KB	Output is correct
30	Correct	15 ms	69212 KB	Output is correct
31	Correct	15 ms	69228 KB	Output is correct
32	Correct	16 ms	69212 KB	Output is correct
33	Correct	14 ms	69208 KB	Output is correct
34	Correct	14 ms	69212 KB	Output is correct
35	Correct	15 ms	69212 KB	Output is correct
36	Correct	15 ms	69212 KB	Output is correct
37	Correct	14 ms	69468 KB	Output is correct
38	Correct	14 ms	69208 KB	Output is correct
39	Correct	15 ms	69212 KB	Output is correct
40	Correct	15 ms	69136 KB	Output is correct
41	Correct	15 ms	69468 KB	Output is correct
42	Correct	18 ms	69356 KB	Output is correct
43	Correct	14 ms	69484 KB	Output is correct
44	Correct	15 ms	69468 KB	Output is correct
45	Correct	176 ms	75088 KB	Output is correct
46	Correct	178 ms	76788 KB	Output is correct
47	Correct	175 ms	74108 KB	Output is correct
48	Correct	179 ms	76628 KB	Output is correct
49	Correct	178 ms	74284 KB	Output is correct
50	Correct	82 ms	76500 KB	Output is correct
51	Correct	81 ms	75772 KB	Output is correct
52	Correct	160 ms	73056 KB	Output is correct
53	Correct	196 ms	73068 KB	Output is correct
54	Correct	135 ms	85204 KB	Output is correct
55	Correct	88 ms	79184 KB	Output is correct
56	Correct	89 ms	79188 KB	Output is correct
57	Correct	161 ms	73480 KB	Output is correct
58	Correct	176 ms	73032 KB	Output is correct
59	Correct	178 ms	73480 KB	Output is correct
60	Correct	180 ms	73480 KB	Output is correct
61	Correct	180 ms	73480 KB	Output is correct
62	Correct	72 ms	73556 KB	Output is correct
63	Correct	64 ms	73552 KB	Output is correct
64	Correct	62 ms	73452 KB	Output is correct
65	Correct	162 ms	84952 KB	Output is correct
66	Correct	165 ms	85708 KB	Output is correct
67	Correct	177 ms	79464 KB	Output is correct
68	Correct	176 ms	79480 KB	Output is correct
69	Correct	183 ms	79308 KB	Output is correct
70	Correct	175 ms	78872 KB	Output is correct
71	Correct	182 ms	84984 KB	Output is correct
72	Correct	182 ms	85196 KB	Output is correct
73	Correct	173 ms	81616 KB	Output is correct
74	Correct	174 ms	81640 KB	Output is correct
75	Correct	151 ms	80360 KB	Output is correct
76	Correct	146 ms	84944 KB	Output is correct
77	Correct	105 ms	84940 KB	Output is correct
78	Correct	178 ms	76372 KB	Output is correct
79	Correct	181 ms	75248 KB	Output is correct
80	Correct	2276 ms	116916 KB	Output is correct
81	Correct	2247 ms	115636 KB	Output is correct
82	Correct	2210 ms	111096 KB	Output is correct
83	Correct	2197 ms	115668 KB	Output is correct
84	Correct	2260 ms	116904 KB	Output is correct
85	Correct	834 ms	112836 KB	Output is correct
86	Correct	948 ms	116348 KB	Output is correct
87	Correct	2058 ms	104144 KB	Output is correct
88	Correct	2672 ms	104444 KB	Output is correct
89	Correct	1648 ms	223404 KB	Output is correct
90	Correct	1158 ms	166496 KB	Output is correct
91	Correct	1112 ms	166332 KB	Output is correct
92	Correct	2201 ms	109492 KB	Output is correct
93	Correct	2114 ms	104564 KB	Output is correct
94	Correct	2480 ms	109720 KB	Output is correct
95	Correct	2313 ms	109568 KB	Output is correct
96	Correct	2166 ms	109708 KB	Output is correct
97	Correct	896 ms	111316 KB	Output is correct
98	Correct	907 ms	110672 KB	Output is correct
99	Correct	1181 ms	112620 KB	Output is correct
100	Correct	2729 ms	223248 KB	Output is correct
101	Correct	2688 ms	223404 KB	Output is correct
102	Correct	2296 ms	168684 KB	Output is correct
103	Correct	2316 ms	168532 KB	Output is correct
104	Correct	2326 ms	164272 KB	Output is correct
105	Correct	2266 ms	165484 KB	Output is correct
106	Correct	2307 ms	223408 KB	Output is correct
107	Correct	2197 ms	223320 KB	Output is correct
108	Correct	2157 ms	189368 KB	Output is correct
109	Correct	2219 ms	188740 KB	Output is correct
110	Correct	2129 ms	221036 KB	Output is correct
111	Correct	1938 ms	223240 KB	Output is correct
112	Correct	1473 ms	223340 KB	Output is correct
113	Correct	2213 ms	110812 KB	Output is correct
114	Correct	2277 ms	115248 KB	Output is correct

Submission #889055

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