Submission #676930

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
676930	2023-01-01T16:24:34 Z	penguin133	Dreaming (IOI13_dreaming)	C++17	47 / 100	679 ms	65536 KB

dreaming

#include <bits/stdc++.h>
#include "dreaming.h"
using namespace std;
 
//#define int long long
typedef int ll;
#define pi pair<int, ll>
#define pii pair<int, pi>
#define fi first
#define se second
#ifdef _WIN32
#define getchar_unlocked _getchar_nolock
#endif
 
int vis[100005];
vector<pi>v[100005], adj[100005];
ll maxi = -1e9, pos;
vector<int> trav;
void dfs(int x, ll cur){
	if(vis[x])return;
	vis[x] = 1;
	trav.push_back(x);
	if(cur > maxi)maxi = cur, pos = x;
	for(auto [i, j] : v[x])dfs(i, cur + j);
}
 
void diam(int x, int p, ll cur){
	if(cur > maxi)maxi = cur, pos = x;
	for(auto [i, j] : adj[x])if(i != p)diam(i, x, cur + j);
}
 
vector<int> mids, path;
 
void find(int cur, int tgt, int p){
	trav.push_back(cur);
	if(cur == tgt){
		path = trav;
		return;
	}
	for(auto [i, j] : v[cur])if(i != p)find(i, tgt, cur);
	trav.pop_back();
}
 
ll mx;
 
void recur(int x, int p, ll cur){
	mx = max(mx, cur);
	for(auto [i, j] : v[x])if(i != p)recur(i, x, cur + j);
}
 
int travelTime(int N, int M, int L, int A[], int B[], int T[]) {
	
	for(int i=0;i<M;i++)v[A[i]].push_back({B[i], T[i]}), v[B[i]].push_back({A[i], T[i]});
	for(int i=0;i<N;i++){
		if(!vis[i]){
			maxi = -1e9;
			dfs(i, 0);
			for(auto j : trav)vis[j] = 0;
			trav.clear();
			int pos2 = pos;
			maxi = -1e9;
			dfs(pos, 0);
			trav.clear();
			//cerr << pos << " " << pos2 << '\n';
			ll cur = 0;
			ll mn = 1e18; 
			find(pos2, pos, -1);
			int cent = path[0];
			trav.clear();
			for(int j=0;j<(int)path.size();j++){
				mx = max(cur, maxi - cur);
				for(auto [a, b] : v[path[j]]){
					if((!j || path[j-1] != a) && (j == (int)path.size() - 1 || path[j+1] != a))recur(a, path[j], b);
					if(j < (int)path.size() - 1 && a == path[j+1])cur += b;
				}
				if(mn > mx)mn = mx, cent = path[j];
			}
			//cerr << cent << '\n';
			mids.push_back(cent);
		}
	}
	//for(auto i : mids)cerr << i << " ";
	//cerr << '\n';
	ll mini = 1e18;
	for(int i=0;i<(int)mids.size();i++){
		for(int j=0;j<N;j++)adj[j] = v[j];
		for(int j=0;j<(int)mids.size();j++){
			if(j == i)continue;
			adj[mids[i]].push_back({mids[j], L});
			adj[mids[j]].push_back({mids[i], L});		
		}
		maxi = -1e9;
		diam(0, -1, 0);
		maxi = -1e9;
		diam(pos, -1, 0);
		//cerr << maxi << '\n';
		mini = min(mini, maxi);
	}
	return mini;
}

Compilation message

dreaming.cpp: In function 'int travelTime(int, int, int, int*, int*, int*)':
dreaming.cpp:66:12: warning: overflow in conversion from 'double' to 'll' {aka 'int'} changes value from '1.0e+18' to '2147483647' [-Woverflow]
   66 |    ll mn = 1e18;
      |            ^~~~
dreaming.cpp:84:12: warning: overflow in conversion from 'double' to 'll' {aka 'int'} changes value from '1.0e+18' to '2147483647' [-Woverflow]
   84 |  ll mini = 1e18;
      |            ^~~~

Subtask #1
14.0 / 14.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	74 ms	19952 KB	Output is correct
2	Correct	81 ms	19960 KB	Output is correct
3	Correct	44 ms	14748 KB	Output is correct
4	Correct	10 ms	7124 KB	Output is correct
5	Correct	8 ms	6228 KB	Output is correct
6	Correct	16 ms	8276 KB	Output is correct
7	Correct	3 ms	4948 KB	Output is correct
8	Correct	31 ms	10236 KB	Output is correct
9	Correct	41 ms	12276 KB	Output is correct
10	Correct	3 ms	5076 KB	Output is correct
11	Correct	61 ms	14560 KB	Output is correct
12	Correct	71 ms	17216 KB	Output is correct
13	Correct	3 ms	5076 KB	Output is correct

Subtask #2
10.0 / 10.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	3 ms	4948 KB	Output is correct
2	Correct	3 ms	4948 KB	Output is correct
3	Correct	3 ms	4948 KB	Output is correct
4	Correct	2 ms	4948 KB	Output is correct
5	Correct	3 ms	4948 KB	Output is correct
6	Correct	2 ms	4948 KB	Output is correct
7	Correct	3 ms	4948 KB	Output is correct
8	Correct	2 ms	4948 KB	Output is correct
9	Correct	2 ms	4948 KB	Output is correct
10	Correct	3 ms	4948 KB	Output is correct
11	Correct	3 ms	4948 KB	Output is correct
12	Correct	2 ms	4948 KB	Output is correct
13	Correct	3 ms	4948 KB	Output is correct
14	Correct	2 ms	4948 KB	Output is correct
15	Correct	3 ms	4948 KB	Output is correct
16	Correct	3 ms	4948 KB	Output is correct
17	Correct	2 ms	4948 KB	Output is correct
18	Correct	3 ms	4948 KB	Output is correct
19	Correct	2 ms	4948 KB	Output is correct
20	Correct	3 ms	4948 KB	Output is correct
21	Correct	2 ms	4948 KB	Output is correct
22	Correct	2 ms	4948 KB	Output is correct
23	Correct	3 ms	4948 KB	Output is correct
24	Correct	3 ms	4948 KB	Output is correct
25	Correct	3 ms	4948 KB	Output is correct

Subtask #3
23.0 / 23.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	74 ms	19952 KB	Output is correct
2	Correct	81 ms	19960 KB	Output is correct
3	Correct	44 ms	14748 KB	Output is correct
4	Correct	10 ms	7124 KB	Output is correct
5	Correct	8 ms	6228 KB	Output is correct
6	Correct	16 ms	8276 KB	Output is correct
7	Correct	3 ms	4948 KB	Output is correct
8	Correct	31 ms	10236 KB	Output is correct
9	Correct	41 ms	12276 KB	Output is correct
10	Correct	3 ms	5076 KB	Output is correct
11	Correct	61 ms	14560 KB	Output is correct
12	Correct	71 ms	17216 KB	Output is correct
13	Correct	3 ms	5076 KB	Output is correct
14	Correct	3 ms	4948 KB	Output is correct
15	Correct	3 ms	4948 KB	Output is correct
16	Correct	3 ms	4948 KB	Output is correct
17	Correct	2 ms	4948 KB	Output is correct
18	Correct	3 ms	4948 KB	Output is correct
19	Correct	2 ms	4948 KB	Output is correct
20	Correct	3 ms	4948 KB	Output is correct
21	Correct	2 ms	4948 KB	Output is correct
22	Correct	2 ms	4948 KB	Output is correct
23	Correct	3 ms	4948 KB	Output is correct
24	Correct	3 ms	4948 KB	Output is correct
25	Correct	2 ms	4948 KB	Output is correct
26	Correct	3 ms	4948 KB	Output is correct
27	Correct	2 ms	4948 KB	Output is correct
28	Correct	3 ms	4948 KB	Output is correct
29	Correct	3 ms	4948 KB	Output is correct
30	Correct	2 ms	4948 KB	Output is correct
31	Correct	3 ms	4948 KB	Output is correct
32	Correct	2 ms	4948 KB	Output is correct
33	Correct	3 ms	4948 KB	Output is correct
34	Correct	2 ms	4948 KB	Output is correct
35	Correct	2 ms	4948 KB	Output is correct
36	Correct	3 ms	4948 KB	Output is correct
37	Correct	3 ms	4948 KB	Output is correct
38	Correct	3 ms	4948 KB	Output is correct
39	Correct	76 ms	20004 KB	Output is correct
40	Correct	80 ms	19920 KB	Output is correct
41	Correct	45 ms	14804 KB	Output is correct
42	Correct	10 ms	7184 KB	Output is correct
43	Correct	3 ms	4948 KB	Output is correct
44	Correct	2 ms	4948 KB	Output is correct
45	Correct	2 ms	4948 KB	Output is correct
46	Correct	3 ms	4948 KB	Output is correct
47	Correct	2 ms	4948 KB	Output is correct
48	Correct	3 ms	4948 KB	Output is correct
49	Correct	3 ms	4948 KB	Output is correct
50	Correct	3 ms	4992 KB	Output is correct
51	Correct	3 ms	4948 KB	Output is correct
52	Correct	3 ms	5028 KB	Output is correct
53	Correct	2 ms	4948 KB	Output is correct
54	Correct	3 ms	4948 KB	Output is correct
55	Correct	2 ms	4948 KB	Output is correct
56	Correct	3 ms	4948 KB	Output is correct
57	Correct	90 ms	13636 KB	Output is correct
58	Correct	88 ms	13504 KB	Output is correct
59	Correct	98 ms	13844 KB	Output is correct
60	Correct	90 ms	13704 KB	Output is correct
61	Correct	81 ms	13960 KB	Output is correct
62	Correct	84 ms	13864 KB	Output is correct
63	Correct	80 ms	13968 KB	Output is correct
64	Correct	76 ms	13840 KB	Output is correct
65	Correct	91 ms	13964 KB	Output is correct
66	Correct	79 ms	13960 KB	Output is correct
67	Correct	90 ms	13828 KB	Output is correct
68	Correct	103 ms	13792 KB	Output is correct
69	Correct	92 ms	13640 KB	Output is correct
70	Correct	96 ms	13640 KB	Output is correct
71	Correct	3 ms	4948 KB	Output is correct
72	Correct	4 ms	5204 KB	Output is correct
73	Correct	6 ms	5204 KB	Output is correct
74	Correct	4 ms	5204 KB	Output is correct
75	Correct	4 ms	5204 KB	Output is correct
76	Correct	5 ms	5276 KB	Output is correct
77	Correct	4 ms	5204 KB	Output is correct
78	Correct	4 ms	5204 KB	Output is correct
79	Correct	4 ms	5204 KB	Output is correct
80	Correct	98 ms	13624 KB	Output is correct
81	Correct	92 ms	13672 KB	Output is correct
82	Correct	96 ms	13940 KB	Output is correct
83	Correct	86 ms	13900 KB	Output is correct
84	Correct	4 ms	5204 KB	Output is correct
85	Correct	3 ms	5204 KB	Output is correct
86	Correct	4 ms	5152 KB	Output is correct
87	Correct	4 ms	5204 KB	Output is correct
88	Correct	4 ms	5276 KB	Output is correct
89	Correct	4 ms	5204 KB	Output is correct
90	Correct	4 ms	5248 KB	Output is correct
91	Correct	4 ms	5204 KB	Output is correct
92	Correct	4 ms	5204 KB	Output is correct
93	Correct	4 ms	5204 KB	Output is correct
94	Correct	3 ms	4948 KB	Output is correct
95	Correct	2 ms	4948 KB	Output is correct
96	Correct	3 ms	4948 KB	Output is correct
97	Correct	3 ms	4948 KB	Output is correct
98	Correct	3 ms	4948 KB	Output is correct
99	Correct	2 ms	4948 KB	Output is correct
100	Correct	2 ms	4948 KB	Output is correct
101	Correct	3 ms	4948 KB	Output is correct
102	Correct	3 ms	4948 KB	Output is correct
103	Correct	3 ms	4948 KB	Output is correct
104	Correct	9 ms	6220 KB	Output is correct
105	Correct	17 ms	8176 KB	Output is correct
106	Correct	3 ms	4948 KB	Output is correct
107	Correct	31 ms	10196 KB	Output is correct
108	Correct	41 ms	12352 KB	Output is correct
109	Correct	3 ms	5076 KB	Output is correct
110	Correct	61 ms	14576 KB	Output is correct
111	Correct	83 ms	17304 KB	Output is correct
112	Correct	3 ms	5076 KB	Output is correct
113	Correct	119 ms	21360 KB	Output is correct

Subtask #4
0 / 18.0

#	Verdict	Execution time	Memory	Grader output
1	Runtime error	679 ms	65536 KB	Execution killed with signal 9
2	Halted	0 ms	0 KB	-

Subtask #5
0 / 12.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	3 ms	4948 KB	Output is correct
2	Correct	3 ms	4948 KB	Output is correct
3	Correct	3 ms	4948 KB	Output is correct
4	Correct	2 ms	4948 KB	Output is correct
5	Correct	3 ms	4948 KB	Output is correct
6	Correct	2 ms	4948 KB	Output is correct
7	Correct	3 ms	4948 KB	Output is correct
8	Correct	2 ms	4948 KB	Output is correct
9	Correct	2 ms	4948 KB	Output is correct
10	Correct	3 ms	4948 KB	Output is correct
11	Correct	3 ms	4948 KB	Output is correct
12	Correct	2 ms	4948 KB	Output is correct
13	Correct	3 ms	4948 KB	Output is correct
14	Correct	2 ms	4948 KB	Output is correct
15	Correct	3 ms	4948 KB	Output is correct
16	Correct	3 ms	4948 KB	Output is correct
17	Correct	2 ms	4948 KB	Output is correct
18	Correct	3 ms	4948 KB	Output is correct
19	Correct	2 ms	4948 KB	Output is correct
20	Correct	3 ms	4948 KB	Output is correct
21	Correct	2 ms	4948 KB	Output is correct
22	Correct	2 ms	4948 KB	Output is correct
23	Correct	3 ms	4948 KB	Output is correct
24	Correct	3 ms	4948 KB	Output is correct
25	Correct	3 ms	4948 KB	Output is correct
26	Correct	7 ms	5332 KB	Output is correct
27	Correct	22 ms	6432 KB	Output is correct
28	Correct	48 ms	7504 KB	Output is correct
29	Correct	8 ms	5332 KB	Output is correct
30	Correct	19 ms	6228 KB	Output is correct
31	Correct	42 ms	7208 KB	Output is correct
32	Correct	6 ms	5204 KB	Output is correct
33	Correct	16 ms	6100 KB	Output is correct
34	Correct	34 ms	6908 KB	Output is correct
35	Correct	2 ms	4948 KB	Output is correct
36	Correct	3 ms	4948 KB	Output is correct
37	Correct	2 ms	4948 KB	Output is correct
38	Correct	3 ms	4948 KB	Output is correct
39	Correct	3 ms	4948 KB	Output is correct
40	Correct	3 ms	5076 KB	Output is correct
41	Correct	3 ms	5076 KB	Output is correct
42	Correct	3 ms	4948 KB	Output is correct
43	Correct	3 ms	4948 KB	Output is correct
44	Correct	2 ms	4948 KB	Output is correct
45	Correct	3 ms	5008 KB	Output is correct
46	Correct	2 ms	4948 KB	Output is correct
47	Correct	3 ms	4948 KB	Output is correct
48	Correct	2 ms	4948 KB	Output is correct
49	Correct	3 ms	4948 KB	Output is correct
50	Correct	3 ms	4948 KB	Output is correct
51	Correct	2 ms	4948 KB	Output is correct
52	Correct	3 ms	4948 KB	Output is correct
53	Correct	3 ms	4892 KB	Output is correct
54	Correct	4 ms	5460 KB	Output is correct
55	Correct	6 ms	5460 KB	Output is correct
56	Correct	144 ms	24140 KB	Output is correct
57	Correct	273 ms	59588 KB	Output is correct
58	Correct	4 ms	5204 KB	Output is correct
59	Correct	4 ms	5332 KB	Output is correct
60	Correct	194 ms	32972 KB	Output is correct
61	Correct	272 ms	51032 KB	Output is correct
62	Correct	4 ms	5204 KB	Output is correct
63	Correct	5 ms	5204 KB	Output is correct
64	Runtime error	255 ms	65536 KB	Execution killed with signal 9
65	Halted	0 ms	0 KB	-

Subtask #6
0 / 23.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	74 ms	19952 KB	Output is correct
2	Correct	81 ms	19960 KB	Output is correct
3	Correct	44 ms	14748 KB	Output is correct
4	Correct	10 ms	7124 KB	Output is correct
5	Correct	8 ms	6228 KB	Output is correct
6	Correct	16 ms	8276 KB	Output is correct
7	Correct	3 ms	4948 KB	Output is correct
8	Correct	31 ms	10236 KB	Output is correct
9	Correct	41 ms	12276 KB	Output is correct
10	Correct	3 ms	5076 KB	Output is correct
11	Correct	61 ms	14560 KB	Output is correct
12	Correct	71 ms	17216 KB	Output is correct
13	Correct	3 ms	5076 KB	Output is correct
14	Correct	3 ms	4948 KB	Output is correct
15	Correct	3 ms	4948 KB	Output is correct
16	Correct	3 ms	4948 KB	Output is correct
17	Correct	2 ms	4948 KB	Output is correct
18	Correct	3 ms	4948 KB	Output is correct
19	Correct	2 ms	4948 KB	Output is correct
20	Correct	3 ms	4948 KB	Output is correct
21	Correct	2 ms	4948 KB	Output is correct
22	Correct	2 ms	4948 KB	Output is correct
23	Correct	3 ms	4948 KB	Output is correct
24	Correct	3 ms	4948 KB	Output is correct
25	Correct	2 ms	4948 KB	Output is correct
26	Correct	3 ms	4948 KB	Output is correct
27	Correct	2 ms	4948 KB	Output is correct
28	Correct	3 ms	4948 KB	Output is correct
29	Correct	3 ms	4948 KB	Output is correct
30	Correct	2 ms	4948 KB	Output is correct
31	Correct	3 ms	4948 KB	Output is correct
32	Correct	2 ms	4948 KB	Output is correct
33	Correct	3 ms	4948 KB	Output is correct
34	Correct	2 ms	4948 KB	Output is correct
35	Correct	2 ms	4948 KB	Output is correct
36	Correct	3 ms	4948 KB	Output is correct
37	Correct	3 ms	4948 KB	Output is correct
38	Correct	3 ms	4948 KB	Output is correct
39	Correct	76 ms	20004 KB	Output is correct
40	Correct	80 ms	19920 KB	Output is correct
41	Correct	45 ms	14804 KB	Output is correct
42	Correct	10 ms	7184 KB	Output is correct
43	Correct	3 ms	4948 KB	Output is correct
44	Correct	2 ms	4948 KB	Output is correct
45	Correct	2 ms	4948 KB	Output is correct
46	Correct	3 ms	4948 KB	Output is correct
47	Correct	2 ms	4948 KB	Output is correct
48	Correct	3 ms	4948 KB	Output is correct
49	Correct	3 ms	4948 KB	Output is correct
50	Correct	3 ms	4992 KB	Output is correct
51	Correct	3 ms	4948 KB	Output is correct
52	Correct	3 ms	5028 KB	Output is correct
53	Correct	2 ms	4948 KB	Output is correct
54	Correct	3 ms	4948 KB	Output is correct
55	Correct	2 ms	4948 KB	Output is correct
56	Correct	3 ms	4948 KB	Output is correct
57	Correct	90 ms	13636 KB	Output is correct
58	Correct	88 ms	13504 KB	Output is correct
59	Correct	98 ms	13844 KB	Output is correct
60	Correct	90 ms	13704 KB	Output is correct
61	Correct	81 ms	13960 KB	Output is correct
62	Correct	84 ms	13864 KB	Output is correct
63	Correct	80 ms	13968 KB	Output is correct
64	Correct	76 ms	13840 KB	Output is correct
65	Correct	91 ms	13964 KB	Output is correct
66	Correct	79 ms	13960 KB	Output is correct
67	Correct	90 ms	13828 KB	Output is correct
68	Correct	103 ms	13792 KB	Output is correct
69	Correct	92 ms	13640 KB	Output is correct
70	Correct	96 ms	13640 KB	Output is correct
71	Correct	3 ms	4948 KB	Output is correct
72	Correct	4 ms	5204 KB	Output is correct
73	Correct	6 ms	5204 KB	Output is correct
74	Correct	4 ms	5204 KB	Output is correct
75	Correct	4 ms	5204 KB	Output is correct
76	Correct	5 ms	5276 KB	Output is correct
77	Correct	4 ms	5204 KB	Output is correct
78	Correct	4 ms	5204 KB	Output is correct
79	Correct	4 ms	5204 KB	Output is correct
80	Correct	98 ms	13624 KB	Output is correct
81	Correct	92 ms	13672 KB	Output is correct
82	Correct	96 ms	13940 KB	Output is correct
83	Correct	86 ms	13900 KB	Output is correct
84	Correct	4 ms	5204 KB	Output is correct
85	Correct	3 ms	5204 KB	Output is correct
86	Correct	4 ms	5152 KB	Output is correct
87	Correct	4 ms	5204 KB	Output is correct
88	Correct	4 ms	5276 KB	Output is correct
89	Correct	4 ms	5204 KB	Output is correct
90	Correct	4 ms	5248 KB	Output is correct
91	Correct	4 ms	5204 KB	Output is correct
92	Correct	4 ms	5204 KB	Output is correct
93	Correct	4 ms	5204 KB	Output is correct
94	Correct	3 ms	4948 KB	Output is correct
95	Correct	2 ms	4948 KB	Output is correct
96	Correct	3 ms	4948 KB	Output is correct
97	Correct	3 ms	4948 KB	Output is correct
98	Correct	3 ms	4948 KB	Output is correct
99	Correct	2 ms	4948 KB	Output is correct
100	Correct	2 ms	4948 KB	Output is correct
101	Correct	3 ms	4948 KB	Output is correct
102	Correct	3 ms	4948 KB	Output is correct
103	Correct	3 ms	4948 KB	Output is correct
104	Correct	9 ms	6220 KB	Output is correct
105	Correct	17 ms	8176 KB	Output is correct
106	Correct	3 ms	4948 KB	Output is correct
107	Correct	31 ms	10196 KB	Output is correct
108	Correct	41 ms	12352 KB	Output is correct
109	Correct	3 ms	5076 KB	Output is correct
110	Correct	61 ms	14576 KB	Output is correct
111	Correct	83 ms	17304 KB	Output is correct
112	Correct	3 ms	5076 KB	Output is correct
113	Correct	119 ms	21360 KB	Output is correct
114	Runtime error	679 ms	65536 KB	Execution killed with signal 9
115	Halted	0 ms	0 KB	-

Submission #676930

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