답안 #72245 :: oj.uz

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
72245	2018-08-26T06:19:24 Z	nvmdava	꿈 (IOI13_dreaming)	C++17	47 / 100	255 ms	34040 KB

dreaming

#include "dreaming.h"
#include <bits/stdc++.h>
using namespace std;

struct Path{
	int to, cost;
	Path(int _to, int _cost){
		to = _to;
		cost = _cost;
	}
};

struct Node{
	int p[20], d;
};
map<int, int> c[100001];
vector<Path> path[100001];
bool in[100001];
Node a[100001];
int mxdist, mxid;
int lol = 0;
void build(int v, int p){
	in[v] = 1;
	for(auto x : path[v]){
		if(x.to == p) continue;
		a[x.to].d = a[v].d + 1;
		memset(a[x.to].p, -1, sizeof(a[x.to].p));
		a[x.to].p[0] = v;
		for(int i = 1; i < 20; i++){
			int t = a[x.to].p[i - 1];
			if(t == -1) break;
			a[x.to].p[i] = a[t].p[i - 1];
		}
		build(x.to, v);
	}
}

int goUp(int v, int u){
	for(int i = 0; i < 20; i++){
		if(u & (1 << i)) v = a[v].p[i];
	}
	return v;
}

int lca(int v, int u){
	int l = 0;
	int r = min(a[v].d, a[u].d) + 1;
	int m;
	while(l + 1 != r){
		m = (l + r) >> 1;
		if(goUp(v, a[v].d - m) == goUp(u, a[u].d - m)) l = m;
		else r = m;
	}
	return goUp(v, a[v].d - l);
}

void dfs(int v, int p, int d){
	if(path[v].size() == 1 && p != -1){
		if(d > mxdist){
			mxdist = d;
			mxid = v;
		}
	}
	for(auto x : path[v]){
		if(x.to == p) continue;
		dfs(x.to, v, d + x.cost);
	}
}

int go(int v){
	if(path[v].size() == 0) return 0;
	if(in[v]) return 0;
	memset(a[v].p, -1, sizeof(a[v].p));
	a[v].d = 0;
	build(v, -1);
	
	mxdist = 0;
	mxid = v;
	dfs(v, -1, 0);
	mxdist = 0;
	v = mxid;
	dfs(v, -1, 0);
	int u = mxid;
	int o = lca(v, u);
	lol = max(lol, mxdist);
	int s = (mxdist + 1) >> 1;
	int q = 0;
	while(v != o){
		q += c[v][a[v].p[0]];
		if(q >= s){
			return min(q, mxdist - q + c[v][a[v].p[0]]);
		}
		v = a[v].p[0];
	}
	q = 0;
	while(u != o){
		q += c[u][a[u].p[0]];
		if(q >= s){
//			cout<<min(q, mxdist - q + c[u][a[u].p[0]])<<"\n";
			return min(q, mxdist - q + c[u][a[u].p[0]]);
		}
		u = a[u].p[0];
	}
}

int travelTime(int N, int M, int L, int A[], int B[], int T[]) {
    
    for(int i = 0; i < M; i++){
    	path[A[i]].push_back(Path(B[i], T[i]));
    	path[B[i]].push_back(Path(A[i], T[i]));
    	c[A[i]][B[i]] = T[i];
    	c[B[i]][A[i]] = T[i];
	}
	int mx = 0;
	int mx2 = 0;
	int s;
	for(int i = 0; i < N; i++){
		s = go(i);
		if(s > mx){
			mx2 = mx;
			mx = s;
		} else if(s > mx2) mx2 = s;
	}
	return max(L + mx + mx2, lol);
}

Compilation message

dreaming.cpp: In function 'int go(int)':
dreaming.cpp:104:1: warning: control reaches end of non-void function [-Wreturn-type]
 }
 ^

Subtask #1
14.0 / 14.0

#	결과	실행 시간	메모리	Grader output
1	Correct	169 ms	31768 KB	Output is correct
2	Correct	194 ms	31736 KB	Output is correct
3	Correct	94 ms	23288 KB	Output is correct
4	Correct	20 ms	11008 KB	Output is correct
5	Correct	18 ms	9856 KB	Output is correct
6	Correct	30 ms	12664 KB	Output is correct
7	Correct	8 ms	7424 KB	Output is correct
8	Correct	75 ms	17372 KB	Output is correct
9	Correct	101 ms	20344 KB	Output is correct
10	Correct	8 ms	7552 KB	Output is correct
11	Correct	167 ms	25052 KB	Output is correct
12	Correct	186 ms	28280 KB	Output is correct
13	Correct	8 ms	7552 KB	Output is correct

Subtask #2
10.0 / 10.0

#	결과	실행 시간	메모리	Grader output
1	Correct	169 ms	31768 KB	Output is correct
2	Correct	194 ms	31736 KB	Output is correct
3	Correct	94 ms	23288 KB	Output is correct
4	Correct	20 ms	11008 KB	Output is correct
5	Correct	18 ms	9856 KB	Output is correct
6	Correct	30 ms	12664 KB	Output is correct
7	Correct	8 ms	7424 KB	Output is correct
8	Correct	75 ms	17372 KB	Output is correct
9	Correct	101 ms	20344 KB	Output is correct
10	Correct	8 ms	7552 KB	Output is correct
11	Correct	167 ms	25052 KB	Output is correct
12	Correct	186 ms	28280 KB	Output is correct
13	Correct	8 ms	7552 KB	Output is correct
14	Correct	8 ms	7424 KB	Output is correct
15	Correct	8 ms	7424 KB	Output is correct
16	Correct	7 ms	7404 KB	Output is correct
17	Correct	7 ms	7424 KB	Output is correct
18	Correct	8 ms	7424 KB	Output is correct
19	Correct	8 ms	7424 KB	Output is correct
20	Correct	7 ms	7424 KB	Output is correct
21	Correct	7 ms	7424 KB	Output is correct
22	Correct	7 ms	7424 KB	Output is correct
23	Correct	8 ms	7424 KB	Output is correct
24	Correct	7 ms	7424 KB	Output is correct
25	Correct	8 ms	7424 KB	Output is correct
26	Correct	7 ms	7424 KB	Output is correct
27	Correct	8 ms	7424 KB	Output is correct
28	Correct	7 ms	7424 KB	Output is correct
29	Correct	8 ms	7424 KB	Output is correct
30	Correct	8 ms	7424 KB	Output is correct
31	Correct	8 ms	7424 KB	Output is correct
32	Correct	7 ms	7424 KB	Output is correct
33	Correct	7 ms	7424 KB	Output is correct
34	Correct	8 ms	7424 KB	Output is correct
35	Correct	7 ms	7424 KB	Output is correct
36	Correct	8 ms	7424 KB	Output is correct
37	Correct	8 ms	7424 KB	Output is correct
38	Correct	8 ms	7424 KB	Output is correct

Subtask #3
23.0 / 23.0

#	결과	실행 시간	메모리	Grader output
1	Correct	169 ms	31768 KB	Output is correct
2	Correct	194 ms	31736 KB	Output is correct
3	Correct	94 ms	23288 KB	Output is correct
4	Correct	20 ms	11008 KB	Output is correct
5	Correct	18 ms	9856 KB	Output is correct
6	Correct	30 ms	12664 KB	Output is correct
7	Correct	8 ms	7424 KB	Output is correct
8	Correct	75 ms	17372 KB	Output is correct
9	Correct	101 ms	20344 KB	Output is correct
10	Correct	8 ms	7552 KB	Output is correct
11	Correct	167 ms	25052 KB	Output is correct
12	Correct	186 ms	28280 KB	Output is correct
13	Correct	8 ms	7552 KB	Output is correct
14	Correct	8 ms	7424 KB	Output is correct
15	Correct	8 ms	7424 KB	Output is correct
16	Correct	7 ms	7404 KB	Output is correct
17	Correct	7 ms	7424 KB	Output is correct
18	Correct	8 ms	7424 KB	Output is correct
19	Correct	8 ms	7424 KB	Output is correct
20	Correct	7 ms	7424 KB	Output is correct
21	Correct	7 ms	7424 KB	Output is correct
22	Correct	7 ms	7424 KB	Output is correct
23	Correct	8 ms	7424 KB	Output is correct
24	Correct	7 ms	7424 KB	Output is correct
25	Correct	8 ms	7424 KB	Output is correct
26	Correct	7 ms	7424 KB	Output is correct
27	Correct	8 ms	7424 KB	Output is correct
28	Correct	7 ms	7424 KB	Output is correct
29	Correct	8 ms	7424 KB	Output is correct
30	Correct	8 ms	7424 KB	Output is correct
31	Correct	8 ms	7424 KB	Output is correct
32	Correct	7 ms	7424 KB	Output is correct
33	Correct	7 ms	7424 KB	Output is correct
34	Correct	8 ms	7424 KB	Output is correct
35	Correct	7 ms	7424 KB	Output is correct
36	Correct	8 ms	7424 KB	Output is correct
37	Correct	8 ms	7424 KB	Output is correct
38	Correct	8 ms	7424 KB	Output is correct
39	Correct	202 ms	31776 KB	Output is correct
40	Correct	167 ms	31760 KB	Output is correct
41	Correct	98 ms	23396 KB	Output is correct
42	Correct	21 ms	10880 KB	Output is correct
43	Correct	7 ms	7424 KB	Output is correct
44	Correct	7 ms	7424 KB	Output is correct
45	Correct	7 ms	7424 KB	Output is correct
46	Correct	7 ms	7424 KB	Output is correct
47	Correct	7 ms	7424 KB	Output is correct
48	Correct	7 ms	7424 KB	Output is correct
49	Correct	7 ms	7424 KB	Output is correct
50	Correct	8 ms	7424 KB	Output is correct
51	Correct	9 ms	7424 KB	Output is correct
52	Correct	9 ms	7424 KB	Output is correct
53	Correct	8 ms	7424 KB	Output is correct
54	Correct	7 ms	7424 KB	Output is correct
55	Correct	8 ms	7424 KB	Output is correct
56	Correct	8 ms	7424 KB	Output is correct
57	Correct	219 ms	30328 KB	Output is correct
58	Correct	201 ms	30328 KB	Output is correct
59	Correct	225 ms	30200 KB	Output is correct
60	Correct	223 ms	30228 KB	Output is correct
61	Correct	213 ms	30072 KB	Output is correct
62	Correct	199 ms	30136 KB	Output is correct
63	Correct	205 ms	30072 KB	Output is correct
64	Correct	211 ms	30072 KB	Output is correct
65	Correct	199 ms	29944 KB	Output is correct
66	Correct	220 ms	30044 KB	Output is correct
67	Correct	225 ms	30200 KB	Output is correct
68	Correct	255 ms	30328 KB	Output is correct
69	Correct	246 ms	30328 KB	Output is correct
70	Correct	235 ms	30328 KB	Output is correct
71	Correct	8 ms	7424 KB	Output is correct
72	Correct	10 ms	8064 KB	Output is correct
73	Correct	10 ms	8064 KB	Output is correct
74	Correct	11 ms	8064 KB	Output is correct
75	Correct	11 ms	8064 KB	Output is correct
76	Correct	11 ms	8064 KB	Output is correct
77	Correct	11 ms	8064 KB	Output is correct
78	Correct	12 ms	8192 KB	Output is correct
79	Correct	10 ms	8064 KB	Output is correct
80	Correct	232 ms	30328 KB	Output is correct
81	Correct	225 ms	30076 KB	Output is correct
82	Correct	238 ms	30200 KB	Output is correct
83	Correct	221 ms	30072 KB	Output is correct
84	Correct	10 ms	7936 KB	Output is correct
85	Correct	10 ms	7808 KB	Output is correct
86	Correct	10 ms	7936 KB	Output is correct
87	Correct	10 ms	7936 KB	Output is correct
88	Correct	10 ms	8064 KB	Output is correct
89	Correct	10 ms	8064 KB	Output is correct
90	Correct	9 ms	8064 KB	Output is correct
91	Correct	10 ms	8064 KB	Output is correct
92	Correct	10 ms	8064 KB	Output is correct
93	Correct	10 ms	8064 KB	Output is correct
94	Correct	7 ms	7424 KB	Output is correct
95	Correct	8 ms	7424 KB	Output is correct
96	Correct	8 ms	7424 KB	Output is correct
97	Correct	7 ms	7424 KB	Output is correct
98	Correct	8 ms	7424 KB	Output is correct
99	Correct	7 ms	7424 KB	Output is correct
100	Correct	8 ms	7424 KB	Output is correct
101	Correct	8 ms	7552 KB	Output is correct
102	Correct	7 ms	7344 KB	Output is correct
103	Correct	8 ms	7424 KB	Output is correct
104	Correct	18 ms	9856 KB	Output is correct
105	Correct	31 ms	12672 KB	Output is correct
106	Correct	8 ms	7424 KB	Output is correct
107	Correct	68 ms	17252 KB	Output is correct
108	Correct	96 ms	20216 KB	Output is correct
109	Correct	7 ms	7552 KB	Output is correct
110	Correct	150 ms	25080 KB	Output is correct
111	Correct	176 ms	28284 KB	Output is correct
112	Correct	8 ms	7680 KB	Output is correct
113	Correct	254 ms	34040 KB	Output is correct

Subtask #4
0 / 18.0

#	결과	실행 시간	메모리	Grader output
1	Correct	71 ms	20472 KB	Output is correct
2	Incorrect	69 ms	20524 KB	Output isn't correct
3	Halted	0 ms	0 KB	-

Subtask #5
0 / 12.0

#	결과	실행 시간	메모리	Grader output
1	Correct	169 ms	31768 KB	Output is correct
2	Correct	194 ms	31736 KB	Output is correct
3	Correct	94 ms	23288 KB	Output is correct
4	Correct	20 ms	11008 KB	Output is correct
5	Correct	18 ms	9856 KB	Output is correct
6	Correct	30 ms	12664 KB	Output is correct
7	Correct	8 ms	7424 KB	Output is correct
8	Correct	75 ms	17372 KB	Output is correct
9	Correct	101 ms	20344 KB	Output is correct
10	Correct	8 ms	7552 KB	Output is correct
11	Correct	167 ms	25052 KB	Output is correct
12	Correct	186 ms	28280 KB	Output is correct
13	Correct	8 ms	7552 KB	Output is correct
14	Correct	8 ms	7552 KB	Output is correct
15	Correct	9 ms	7808 KB	Output is correct
16	Correct	10 ms	8064 KB	Output is correct
17	Correct	9 ms	7652 KB	Output is correct
18	Correct	9 ms	7808 KB	Output is correct
19	Correct	9 ms	7936 KB	Output is correct
20	Incorrect	8 ms	7552 KB	Output isn't correct
21	Halted	0 ms	0 KB	-

Subtask #6
0 / 23.0

#	결과	실행 시간	메모리	Grader output
1	Correct	169 ms	31768 KB	Output is correct
2	Correct	194 ms	31736 KB	Output is correct
3	Correct	94 ms	23288 KB	Output is correct
4	Correct	20 ms	11008 KB	Output is correct
5	Correct	18 ms	9856 KB	Output is correct
6	Correct	30 ms	12664 KB	Output is correct
7	Correct	8 ms	7424 KB	Output is correct
8	Correct	75 ms	17372 KB	Output is correct
9	Correct	101 ms	20344 KB	Output is correct
10	Correct	8 ms	7552 KB	Output is correct
11	Correct	167 ms	25052 KB	Output is correct
12	Correct	186 ms	28280 KB	Output is correct
13	Correct	8 ms	7552 KB	Output is correct
14	Correct	8 ms	7424 KB	Output is correct
15	Correct	8 ms	7424 KB	Output is correct
16	Correct	7 ms	7404 KB	Output is correct
17	Correct	7 ms	7424 KB	Output is correct
18	Correct	8 ms	7424 KB	Output is correct
19	Correct	8 ms	7424 KB	Output is correct
20	Correct	7 ms	7424 KB	Output is correct
21	Correct	7 ms	7424 KB	Output is correct
22	Correct	7 ms	7424 KB	Output is correct
23	Correct	8 ms	7424 KB	Output is correct
24	Correct	7 ms	7424 KB	Output is correct
25	Correct	8 ms	7424 KB	Output is correct
26	Correct	7 ms	7424 KB	Output is correct
27	Correct	8 ms	7424 KB	Output is correct
28	Correct	7 ms	7424 KB	Output is correct
29	Correct	8 ms	7424 KB	Output is correct
30	Correct	8 ms	7424 KB	Output is correct
31	Correct	8 ms	7424 KB	Output is correct
32	Correct	7 ms	7424 KB	Output is correct
33	Correct	7 ms	7424 KB	Output is correct
34	Correct	8 ms	7424 KB	Output is correct
35	Correct	7 ms	7424 KB	Output is correct
36	Correct	8 ms	7424 KB	Output is correct
37	Correct	8 ms	7424 KB	Output is correct
38	Correct	8 ms	7424 KB	Output is correct
39	Correct	202 ms	31776 KB	Output is correct
40	Correct	167 ms	31760 KB	Output is correct
41	Correct	98 ms	23396 KB	Output is correct
42	Correct	21 ms	10880 KB	Output is correct
43	Correct	7 ms	7424 KB	Output is correct
44	Correct	7 ms	7424 KB	Output is correct
45	Correct	7 ms	7424 KB	Output is correct
46	Correct	7 ms	7424 KB	Output is correct
47	Correct	7 ms	7424 KB	Output is correct
48	Correct	7 ms	7424 KB	Output is correct
49	Correct	7 ms	7424 KB	Output is correct
50	Correct	8 ms	7424 KB	Output is correct
51	Correct	9 ms	7424 KB	Output is correct
52	Correct	9 ms	7424 KB	Output is correct
53	Correct	8 ms	7424 KB	Output is correct
54	Correct	7 ms	7424 KB	Output is correct
55	Correct	8 ms	7424 KB	Output is correct
56	Correct	8 ms	7424 KB	Output is correct
57	Correct	219 ms	30328 KB	Output is correct
58	Correct	201 ms	30328 KB	Output is correct
59	Correct	225 ms	30200 KB	Output is correct
60	Correct	223 ms	30228 KB	Output is correct
61	Correct	213 ms	30072 KB	Output is correct
62	Correct	199 ms	30136 KB	Output is correct
63	Correct	205 ms	30072 KB	Output is correct
64	Correct	211 ms	30072 KB	Output is correct
65	Correct	199 ms	29944 KB	Output is correct
66	Correct	220 ms	30044 KB	Output is correct
67	Correct	225 ms	30200 KB	Output is correct
68	Correct	255 ms	30328 KB	Output is correct
69	Correct	246 ms	30328 KB	Output is correct
70	Correct	235 ms	30328 KB	Output is correct
71	Correct	8 ms	7424 KB	Output is correct
72	Correct	10 ms	8064 KB	Output is correct
73	Correct	10 ms	8064 KB	Output is correct
74	Correct	11 ms	8064 KB	Output is correct
75	Correct	11 ms	8064 KB	Output is correct
76	Correct	11 ms	8064 KB	Output is correct
77	Correct	11 ms	8064 KB	Output is correct
78	Correct	12 ms	8192 KB	Output is correct
79	Correct	10 ms	8064 KB	Output is correct
80	Correct	232 ms	30328 KB	Output is correct
81	Correct	225 ms	30076 KB	Output is correct
82	Correct	238 ms	30200 KB	Output is correct
83	Correct	221 ms	30072 KB	Output is correct
84	Correct	10 ms	7936 KB	Output is correct
85	Correct	10 ms	7808 KB	Output is correct
86	Correct	10 ms	7936 KB	Output is correct
87	Correct	10 ms	7936 KB	Output is correct
88	Correct	10 ms	8064 KB	Output is correct
89	Correct	10 ms	8064 KB	Output is correct
90	Correct	9 ms	8064 KB	Output is correct
91	Correct	10 ms	8064 KB	Output is correct
92	Correct	10 ms	8064 KB	Output is correct
93	Correct	10 ms	8064 KB	Output is correct
94	Correct	7 ms	7424 KB	Output is correct
95	Correct	8 ms	7424 KB	Output is correct
96	Correct	8 ms	7424 KB	Output is correct
97	Correct	7 ms	7424 KB	Output is correct
98	Correct	8 ms	7424 KB	Output is correct
99	Correct	7 ms	7424 KB	Output is correct
100	Correct	8 ms	7424 KB	Output is correct
101	Correct	8 ms	7552 KB	Output is correct
102	Correct	7 ms	7344 KB	Output is correct
103	Correct	8 ms	7424 KB	Output is correct
104	Correct	18 ms	9856 KB	Output is correct
105	Correct	31 ms	12672 KB	Output is correct
106	Correct	8 ms	7424 KB	Output is correct
107	Correct	68 ms	17252 KB	Output is correct
108	Correct	96 ms	20216 KB	Output is correct
109	Correct	7 ms	7552 KB	Output is correct
110	Correct	150 ms	25080 KB	Output is correct
111	Correct	176 ms	28284 KB	Output is correct
112	Correct	8 ms	7680 KB	Output is correct
113	Correct	254 ms	34040 KB	Output is correct
114	Correct	71 ms	20472 KB	Output is correct
115	Incorrect	69 ms	20524 KB	Output isn't correct
116	Halted	0 ms	0 KB	-

답안 #72245

Compilation message

Subtask #1 14.0 / 14.0

Subtask #2 10.0 / 10.0

Subtask #3 23.0 / 23.0

Subtask #4 0 / 18.0

Subtask #5 0 / 12.0

Subtask #6 0 / 23.0

Subtask #1
14.0 / 14.0

Subtask #2
10.0 / 10.0

Subtask #3
23.0 / 23.0

Subtask #4
0 / 18.0

Subtask #5
0 / 12.0

Subtask #6
0 / 23.0