#include "dreaming.h"
#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
#define pb push_back
#define F first
#define S second
#define enter cout<<'\n';
#define INF 99999999999999999
#define MOD 1000000007
#define all(x) x.begin(),x.end()
vector<vector<pair<ll,ll>>>g;
vector<bool>vis;
vector<ll>dist,par;
ll n,m;
void dfs1(int start,int pre,ll &maxi)
{
for(auto x:g[start])
if(x.F!=pre)
{
par[x.F]=start;
vis[x.F]=1;
dist[x.F]= dist[start] + x.S;
if(dist[maxi]<dist[x.F])
maxi=x.F;
dfs1(x.F, start,maxi);
}
}
void dfs2(int start,int pre,ll &ans,ll diff,ll curr,ll count)
{
for(auto x:g[start])
if(x.F!=pre)
dfs2(x.F,start,ans,diff,curr + x.S,count);
}
int travelTime(int N, int M, int L, int A[], int B[], int T[]) {
n=N;
m=M;
g.assign(n,vector<pair<ll,ll>>());
vis.assign(n,0);
dist.assign(n,0);
par.assign(n,0);
for(int i=0;i<m;i++)
{
g[A[i]].pb({B[i],T[i]});
g[B[i]].pb({A[i],T[i]});
}
vector<ll>ans;
ll ansi=-1;
ll idx=0;
for(int i=0;i<N;i++)
if(!vis[i])
{
vis[i]=1;
ll p1=i,p2;
dfs1(i,i,p1);
dist[p1]=0;
p2=p1;
dfs1(p1,p1,p2);
ll curr=0;
ll diff=INF;
ll count=dist[p2];
ansi=max(ansi,dist[p2]);
ll curri=0;
while(p2!=p1)
{
if(diff > abs((count-curr)-curr))
{
curri=max(curr,count-curr);
diff= abs((count-curr)-curr);
}
curr+=dist[p2]-dist[par[p2]];
p2=par[p2];
}
ans.pb(curri);
}
sort(all(ans));
return max(ansi,ans[ans.size()-1] + ans[ans.size()-2] + L);
}
Compilation message
dreaming.cpp: In function 'int travelTime(int, int, int, int*, int*, int*)':
dreaming.cpp:60:5: warning: this 'for' clause does not guard... [-Wmisleading-indentation]
60 | for(int i=0;i<N;i++)
| ^~~
dreaming.cpp:90:2: note: ...this statement, but the latter is misleadingly indented as if it were guarded by the 'for'
90 | sort(all(ans));
| ^~~~
dreaming.cpp:59:8: warning: unused variable 'idx' [-Wunused-variable]
59 | ll idx=0;
| ^~~
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
32 ms |
17736 KB |
Output is correct |
2 |
Correct |
33 ms |
17488 KB |
Output is correct |
3 |
Correct |
21 ms |
11856 KB |
Output is correct |
4 |
Correct |
5 ms |
2820 KB |
Output is correct |
5 |
Correct |
4 ms |
1852 KB |
Output is correct |
6 |
Correct |
9 ms |
4440 KB |
Output is correct |
7 |
Correct |
1 ms |
348 KB |
Output is correct |
8 |
Correct |
17 ms |
7004 KB |
Output is correct |
9 |
Correct |
21 ms |
9304 KB |
Output is correct |
10 |
Correct |
1 ms |
352 KB |
Output is correct |
11 |
Correct |
30 ms |
12324 KB |
Output is correct |
12 |
Correct |
35 ms |
14932 KB |
Output is correct |
13 |
Correct |
1 ms |
604 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
0 ms |
348 KB |
Output is correct |
2 |
Correct |
0 ms |
348 KB |
Output is correct |
3 |
Correct |
0 ms |
440 KB |
Output is correct |
4 |
Correct |
0 ms |
348 KB |
Output is correct |
5 |
Correct |
0 ms |
348 KB |
Output is correct |
6 |
Correct |
0 ms |
348 KB |
Output is correct |
7 |
Correct |
1 ms |
348 KB |
Output is correct |
8 |
Correct |
0 ms |
348 KB |
Output is correct |
9 |
Correct |
0 ms |
348 KB |
Output is correct |
10 |
Correct |
0 ms |
348 KB |
Output is correct |
11 |
Correct |
0 ms |
348 KB |
Output is correct |
12 |
Correct |
0 ms |
348 KB |
Output is correct |
13 |
Correct |
1 ms |
344 KB |
Output is correct |
14 |
Correct |
0 ms |
348 KB |
Output is correct |
15 |
Correct |
0 ms |
348 KB |
Output is correct |
16 |
Correct |
1 ms |
348 KB |
Output is correct |
17 |
Correct |
0 ms |
348 KB |
Output is correct |
18 |
Correct |
0 ms |
348 KB |
Output is correct |
19 |
Correct |
0 ms |
348 KB |
Output is correct |
20 |
Correct |
1 ms |
348 KB |
Output is correct |
21 |
Correct |
0 ms |
348 KB |
Output is correct |
22 |
Correct |
0 ms |
348 KB |
Output is correct |
23 |
Correct |
0 ms |
348 KB |
Output is correct |
24 |
Correct |
0 ms |
344 KB |
Output is correct |
25 |
Correct |
0 ms |
348 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
32 ms |
17736 KB |
Output is correct |
2 |
Correct |
33 ms |
17488 KB |
Output is correct |
3 |
Correct |
21 ms |
11856 KB |
Output is correct |
4 |
Correct |
5 ms |
2820 KB |
Output is correct |
5 |
Correct |
4 ms |
1852 KB |
Output is correct |
6 |
Correct |
9 ms |
4440 KB |
Output is correct |
7 |
Correct |
1 ms |
348 KB |
Output is correct |
8 |
Correct |
17 ms |
7004 KB |
Output is correct |
9 |
Correct |
21 ms |
9304 KB |
Output is correct |
10 |
Correct |
1 ms |
352 KB |
Output is correct |
11 |
Correct |
30 ms |
12324 KB |
Output is correct |
12 |
Correct |
35 ms |
14932 KB |
Output is correct |
13 |
Correct |
1 ms |
604 KB |
Output is correct |
14 |
Correct |
0 ms |
348 KB |
Output is correct |
15 |
Correct |
0 ms |
348 KB |
Output is correct |
16 |
Correct |
0 ms |
440 KB |
Output is correct |
17 |
Correct |
0 ms |
348 KB |
Output is correct |
18 |
Correct |
0 ms |
348 KB |
Output is correct |
19 |
Correct |
0 ms |
348 KB |
Output is correct |
20 |
Correct |
1 ms |
348 KB |
Output is correct |
21 |
Correct |
0 ms |
348 KB |
Output is correct |
22 |
Correct |
0 ms |
348 KB |
Output is correct |
23 |
Correct |
0 ms |
348 KB |
Output is correct |
24 |
Correct |
0 ms |
348 KB |
Output is correct |
25 |
Correct |
0 ms |
348 KB |
Output is correct |
26 |
Correct |
1 ms |
344 KB |
Output is correct |
27 |
Correct |
0 ms |
348 KB |
Output is correct |
28 |
Correct |
0 ms |
348 KB |
Output is correct |
29 |
Correct |
1 ms |
348 KB |
Output is correct |
30 |
Correct |
0 ms |
348 KB |
Output is correct |
31 |
Correct |
0 ms |
348 KB |
Output is correct |
32 |
Correct |
0 ms |
348 KB |
Output is correct |
33 |
Correct |
1 ms |
348 KB |
Output is correct |
34 |
Correct |
0 ms |
348 KB |
Output is correct |
35 |
Correct |
0 ms |
348 KB |
Output is correct |
36 |
Correct |
0 ms |
348 KB |
Output is correct |
37 |
Correct |
0 ms |
344 KB |
Output is correct |
38 |
Correct |
0 ms |
348 KB |
Output is correct |
39 |
Correct |
34 ms |
17744 KB |
Output is correct |
40 |
Correct |
32 ms |
17544 KB |
Output is correct |
41 |
Correct |
21 ms |
11864 KB |
Output is correct |
42 |
Correct |
6 ms |
2908 KB |
Output is correct |
43 |
Correct |
0 ms |
348 KB |
Output is correct |
44 |
Correct |
0 ms |
348 KB |
Output is correct |
45 |
Correct |
1 ms |
344 KB |
Output is correct |
46 |
Correct |
0 ms |
348 KB |
Output is correct |
47 |
Correct |
0 ms |
348 KB |
Output is correct |
48 |
Correct |
0 ms |
348 KB |
Output is correct |
49 |
Correct |
1 ms |
348 KB |
Output is correct |
50 |
Correct |
0 ms |
348 KB |
Output is correct |
51 |
Correct |
0 ms |
348 KB |
Output is correct |
52 |
Correct |
0 ms |
348 KB |
Output is correct |
53 |
Correct |
0 ms |
348 KB |
Output is correct |
54 |
Correct |
0 ms |
348 KB |
Output is correct |
55 |
Correct |
0 ms |
348 KB |
Output is correct |
56 |
Correct |
1 ms |
348 KB |
Output is correct |
57 |
Correct |
47 ms |
12780 KB |
Output is correct |
58 |
Correct |
39 ms |
12756 KB |
Output is correct |
59 |
Correct |
39 ms |
12368 KB |
Output is correct |
60 |
Correct |
41 ms |
12368 KB |
Output is correct |
61 |
Correct |
49 ms |
12380 KB |
Output is correct |
62 |
Correct |
47 ms |
12380 KB |
Output is correct |
63 |
Correct |
33 ms |
11868 KB |
Output is correct |
64 |
Correct |
33 ms |
11864 KB |
Output is correct |
65 |
Correct |
36 ms |
12112 KB |
Output is correct |
66 |
Correct |
35 ms |
12124 KB |
Output is correct |
67 |
Correct |
39 ms |
12536 KB |
Output is correct |
68 |
Correct |
41 ms |
12444 KB |
Output is correct |
69 |
Correct |
41 ms |
12628 KB |
Output is correct |
70 |
Correct |
39 ms |
12796 KB |
Output is correct |
71 |
Correct |
0 ms |
348 KB |
Output is correct |
72 |
Correct |
3 ms |
604 KB |
Output is correct |
73 |
Correct |
1 ms |
604 KB |
Output is correct |
74 |
Correct |
3 ms |
604 KB |
Output is correct |
75 |
Correct |
1 ms |
604 KB |
Output is correct |
76 |
Correct |
1 ms |
856 KB |
Output is correct |
77 |
Correct |
2 ms |
604 KB |
Output is correct |
78 |
Correct |
1 ms |
604 KB |
Output is correct |
79 |
Correct |
1 ms |
604 KB |
Output is correct |
80 |
Correct |
43 ms |
12368 KB |
Output is correct |
81 |
Correct |
43 ms |
12372 KB |
Output is correct |
82 |
Correct |
39 ms |
12356 KB |
Output is correct |
83 |
Correct |
35 ms |
12368 KB |
Output is correct |
84 |
Correct |
1 ms |
600 KB |
Output is correct |
85 |
Correct |
1 ms |
604 KB |
Output is correct |
86 |
Correct |
1 ms |
604 KB |
Output is correct |
87 |
Correct |
1 ms |
712 KB |
Output is correct |
88 |
Correct |
1 ms |
604 KB |
Output is correct |
89 |
Correct |
1 ms |
604 KB |
Output is correct |
90 |
Correct |
2 ms |
600 KB |
Output is correct |
91 |
Correct |
3 ms |
600 KB |
Output is correct |
92 |
Correct |
2 ms |
604 KB |
Output is correct |
93 |
Correct |
1 ms |
604 KB |
Output is correct |
94 |
Correct |
1 ms |
348 KB |
Output is correct |
95 |
Correct |
0 ms |
348 KB |
Output is correct |
96 |
Correct |
0 ms |
348 KB |
Output is correct |
97 |
Correct |
0 ms |
348 KB |
Output is correct |
98 |
Correct |
0 ms |
348 KB |
Output is correct |
99 |
Correct |
1 ms |
348 KB |
Output is correct |
100 |
Correct |
1 ms |
348 KB |
Output is correct |
101 |
Correct |
0 ms |
348 KB |
Output is correct |
102 |
Correct |
1 ms |
344 KB |
Output is correct |
103 |
Correct |
1 ms |
348 KB |
Output is correct |
104 |
Correct |
4 ms |
1884 KB |
Output is correct |
105 |
Correct |
10 ms |
4428 KB |
Output is correct |
106 |
Correct |
1 ms |
760 KB |
Output is correct |
107 |
Correct |
21 ms |
7004 KB |
Output is correct |
108 |
Correct |
23 ms |
9336 KB |
Output is correct |
109 |
Correct |
0 ms |
344 KB |
Output is correct |
110 |
Correct |
30 ms |
12424 KB |
Output is correct |
111 |
Correct |
44 ms |
14932 KB |
Output is correct |
112 |
Correct |
1 ms |
604 KB |
Output is correct |
113 |
Correct |
56 ms |
19952 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
14 ms |
7392 KB |
Output is correct |
2 |
Incorrect |
20 ms |
7356 KB |
Output isn't correct |
3 |
Halted |
0 ms |
0 KB |
- |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
0 ms |
348 KB |
Output is correct |
2 |
Correct |
0 ms |
348 KB |
Output is correct |
3 |
Correct |
0 ms |
440 KB |
Output is correct |
4 |
Correct |
0 ms |
348 KB |
Output is correct |
5 |
Correct |
0 ms |
348 KB |
Output is correct |
6 |
Correct |
0 ms |
348 KB |
Output is correct |
7 |
Correct |
1 ms |
348 KB |
Output is correct |
8 |
Correct |
0 ms |
348 KB |
Output is correct |
9 |
Correct |
0 ms |
348 KB |
Output is correct |
10 |
Correct |
0 ms |
348 KB |
Output is correct |
11 |
Correct |
0 ms |
348 KB |
Output is correct |
12 |
Correct |
0 ms |
348 KB |
Output is correct |
13 |
Correct |
1 ms |
344 KB |
Output is correct |
14 |
Correct |
0 ms |
348 KB |
Output is correct |
15 |
Correct |
0 ms |
348 KB |
Output is correct |
16 |
Correct |
1 ms |
348 KB |
Output is correct |
17 |
Correct |
0 ms |
348 KB |
Output is correct |
18 |
Correct |
0 ms |
348 KB |
Output is correct |
19 |
Correct |
0 ms |
348 KB |
Output is correct |
20 |
Correct |
1 ms |
348 KB |
Output is correct |
21 |
Correct |
0 ms |
348 KB |
Output is correct |
22 |
Correct |
0 ms |
348 KB |
Output is correct |
23 |
Correct |
0 ms |
348 KB |
Output is correct |
24 |
Correct |
0 ms |
344 KB |
Output is correct |
25 |
Correct |
0 ms |
348 KB |
Output is correct |
26 |
Correct |
1 ms |
348 KB |
Output is correct |
27 |
Correct |
1 ms |
604 KB |
Output is correct |
28 |
Correct |
1 ms |
604 KB |
Output is correct |
29 |
Correct |
1 ms |
348 KB |
Output is correct |
30 |
Correct |
1 ms |
604 KB |
Output is correct |
31 |
Correct |
2 ms |
600 KB |
Output is correct |
32 |
Incorrect |
1 ms |
348 KB |
Output isn't correct |
33 |
Halted |
0 ms |
0 KB |
- |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
32 ms |
17736 KB |
Output is correct |
2 |
Correct |
33 ms |
17488 KB |
Output is correct |
3 |
Correct |
21 ms |
11856 KB |
Output is correct |
4 |
Correct |
5 ms |
2820 KB |
Output is correct |
5 |
Correct |
4 ms |
1852 KB |
Output is correct |
6 |
Correct |
9 ms |
4440 KB |
Output is correct |
7 |
Correct |
1 ms |
348 KB |
Output is correct |
8 |
Correct |
17 ms |
7004 KB |
Output is correct |
9 |
Correct |
21 ms |
9304 KB |
Output is correct |
10 |
Correct |
1 ms |
352 KB |
Output is correct |
11 |
Correct |
30 ms |
12324 KB |
Output is correct |
12 |
Correct |
35 ms |
14932 KB |
Output is correct |
13 |
Correct |
1 ms |
604 KB |
Output is correct |
14 |
Correct |
0 ms |
348 KB |
Output is correct |
15 |
Correct |
0 ms |
348 KB |
Output is correct |
16 |
Correct |
0 ms |
440 KB |
Output is correct |
17 |
Correct |
0 ms |
348 KB |
Output is correct |
18 |
Correct |
0 ms |
348 KB |
Output is correct |
19 |
Correct |
0 ms |
348 KB |
Output is correct |
20 |
Correct |
1 ms |
348 KB |
Output is correct |
21 |
Correct |
0 ms |
348 KB |
Output is correct |
22 |
Correct |
0 ms |
348 KB |
Output is correct |
23 |
Correct |
0 ms |
348 KB |
Output is correct |
24 |
Correct |
0 ms |
348 KB |
Output is correct |
25 |
Correct |
0 ms |
348 KB |
Output is correct |
26 |
Correct |
1 ms |
344 KB |
Output is correct |
27 |
Correct |
0 ms |
348 KB |
Output is correct |
28 |
Correct |
0 ms |
348 KB |
Output is correct |
29 |
Correct |
1 ms |
348 KB |
Output is correct |
30 |
Correct |
0 ms |
348 KB |
Output is correct |
31 |
Correct |
0 ms |
348 KB |
Output is correct |
32 |
Correct |
0 ms |
348 KB |
Output is correct |
33 |
Correct |
1 ms |
348 KB |
Output is correct |
34 |
Correct |
0 ms |
348 KB |
Output is correct |
35 |
Correct |
0 ms |
348 KB |
Output is correct |
36 |
Correct |
0 ms |
348 KB |
Output is correct |
37 |
Correct |
0 ms |
344 KB |
Output is correct |
38 |
Correct |
0 ms |
348 KB |
Output is correct |
39 |
Correct |
34 ms |
17744 KB |
Output is correct |
40 |
Correct |
32 ms |
17544 KB |
Output is correct |
41 |
Correct |
21 ms |
11864 KB |
Output is correct |
42 |
Correct |
6 ms |
2908 KB |
Output is correct |
43 |
Correct |
0 ms |
348 KB |
Output is correct |
44 |
Correct |
0 ms |
348 KB |
Output is correct |
45 |
Correct |
1 ms |
344 KB |
Output is correct |
46 |
Correct |
0 ms |
348 KB |
Output is correct |
47 |
Correct |
0 ms |
348 KB |
Output is correct |
48 |
Correct |
0 ms |
348 KB |
Output is correct |
49 |
Correct |
1 ms |
348 KB |
Output is correct |
50 |
Correct |
0 ms |
348 KB |
Output is correct |
51 |
Correct |
0 ms |
348 KB |
Output is correct |
52 |
Correct |
0 ms |
348 KB |
Output is correct |
53 |
Correct |
0 ms |
348 KB |
Output is correct |
54 |
Correct |
0 ms |
348 KB |
Output is correct |
55 |
Correct |
0 ms |
348 KB |
Output is correct |
56 |
Correct |
1 ms |
348 KB |
Output is correct |
57 |
Correct |
47 ms |
12780 KB |
Output is correct |
58 |
Correct |
39 ms |
12756 KB |
Output is correct |
59 |
Correct |
39 ms |
12368 KB |
Output is correct |
60 |
Correct |
41 ms |
12368 KB |
Output is correct |
61 |
Correct |
49 ms |
12380 KB |
Output is correct |
62 |
Correct |
47 ms |
12380 KB |
Output is correct |
63 |
Correct |
33 ms |
11868 KB |
Output is correct |
64 |
Correct |
33 ms |
11864 KB |
Output is correct |
65 |
Correct |
36 ms |
12112 KB |
Output is correct |
66 |
Correct |
35 ms |
12124 KB |
Output is correct |
67 |
Correct |
39 ms |
12536 KB |
Output is correct |
68 |
Correct |
41 ms |
12444 KB |
Output is correct |
69 |
Correct |
41 ms |
12628 KB |
Output is correct |
70 |
Correct |
39 ms |
12796 KB |
Output is correct |
71 |
Correct |
0 ms |
348 KB |
Output is correct |
72 |
Correct |
3 ms |
604 KB |
Output is correct |
73 |
Correct |
1 ms |
604 KB |
Output is correct |
74 |
Correct |
3 ms |
604 KB |
Output is correct |
75 |
Correct |
1 ms |
604 KB |
Output is correct |
76 |
Correct |
1 ms |
856 KB |
Output is correct |
77 |
Correct |
2 ms |
604 KB |
Output is correct |
78 |
Correct |
1 ms |
604 KB |
Output is correct |
79 |
Correct |
1 ms |
604 KB |
Output is correct |
80 |
Correct |
43 ms |
12368 KB |
Output is correct |
81 |
Correct |
43 ms |
12372 KB |
Output is correct |
82 |
Correct |
39 ms |
12356 KB |
Output is correct |
83 |
Correct |
35 ms |
12368 KB |
Output is correct |
84 |
Correct |
1 ms |
600 KB |
Output is correct |
85 |
Correct |
1 ms |
604 KB |
Output is correct |
86 |
Correct |
1 ms |
604 KB |
Output is correct |
87 |
Correct |
1 ms |
712 KB |
Output is correct |
88 |
Correct |
1 ms |
604 KB |
Output is correct |
89 |
Correct |
1 ms |
604 KB |
Output is correct |
90 |
Correct |
2 ms |
600 KB |
Output is correct |
91 |
Correct |
3 ms |
600 KB |
Output is correct |
92 |
Correct |
2 ms |
604 KB |
Output is correct |
93 |
Correct |
1 ms |
604 KB |
Output is correct |
94 |
Correct |
1 ms |
348 KB |
Output is correct |
95 |
Correct |
0 ms |
348 KB |
Output is correct |
96 |
Correct |
0 ms |
348 KB |
Output is correct |
97 |
Correct |
0 ms |
348 KB |
Output is correct |
98 |
Correct |
0 ms |
348 KB |
Output is correct |
99 |
Correct |
1 ms |
348 KB |
Output is correct |
100 |
Correct |
1 ms |
348 KB |
Output is correct |
101 |
Correct |
0 ms |
348 KB |
Output is correct |
102 |
Correct |
1 ms |
344 KB |
Output is correct |
103 |
Correct |
1 ms |
348 KB |
Output is correct |
104 |
Correct |
4 ms |
1884 KB |
Output is correct |
105 |
Correct |
10 ms |
4428 KB |
Output is correct |
106 |
Correct |
1 ms |
760 KB |
Output is correct |
107 |
Correct |
21 ms |
7004 KB |
Output is correct |
108 |
Correct |
23 ms |
9336 KB |
Output is correct |
109 |
Correct |
0 ms |
344 KB |
Output is correct |
110 |
Correct |
30 ms |
12424 KB |
Output is correct |
111 |
Correct |
44 ms |
14932 KB |
Output is correct |
112 |
Correct |
1 ms |
604 KB |
Output is correct |
113 |
Correct |
56 ms |
19952 KB |
Output is correct |
114 |
Correct |
14 ms |
7392 KB |
Output is correct |
115 |
Incorrect |
20 ms |
7356 KB |
Output isn't correct |
116 |
Halted |
0 ms |
0 KB |
- |