# |
Submission time |
Handle |
Problem |
Language |
Result |
Execution time |
Memory |
134590 |
2019-07-23T04:56:47 Z |
송준혁(#3242) |
Telegraph (JOI16_telegraph) |
C++14 |
|
5 ms |
2708 KB |
#include <bits/stdc++.h>
using namespace std;
typedef long long LL;
typedef pair<int,int> pii;
int N;
LL ans, sum, S;
int P[101010], V[101010], chk[101010], C;
bool vis[101010];
vector<pii> adj[101010];
int FindCyc(int u){
if (chk[u]) return chk[u];
chk[u] = ++C, V[C] = u;
FindCyc(P[u]);
}
void dfs(int u, int r){
int Max = 0;
vis[u] = true;
for (pii v : adj[u]){
if (v.first == r) continue;
Max = max(Max, v.second);
dfs(v.first, r);
}
S += Max;
}
int main(){
scanf("%d", &N);
for (int i=1; i<=N; i++){
int x;
scanf("%d %d", &P[i], &x);
adj[P[i]].push_back(pii(i, x));
sum += x;
}
for (int i=1; i<=N; i++){
if (vis[i]) continue;
C = 0, ans = 0, S = 0;
int R = FindCyc(i);
if (C == N){
puts("0");
return 0;
}
dfs(V[C], V[C]);
ans = S, V[C+1] = V[R];
for (C--; C>=R; C--){
int pmax=0, nmax=0;
for (pii v : adj[V[C+1]]){
if (v.first != V[C]) nmax = max(nmax, v.second);
pmax = max(pmax, v.second);
}
S += nmax - pmax, pmax = nmax = 0;
for (pii v : adj[V[C+2]]){
if (v.first != V[C+1]) pmax = max(pmax, v.second);
nmax = max(nmax, v.second);
}
S += nmax - pmax;
ans = max(ans, S);
}
sum -= ans;
}
printf("%lld\n", sum);
return 0;
}
/*
6
2 3
5 7
2 2
3 4
4 1
4 6
*/
Compilation message
telegraph.cpp: In function 'int FindCyc(int)':
telegraph.cpp:16:1: warning: control reaches end of non-void function [-Wreturn-type]
}
^
telegraph.cpp: In function 'int main()':
telegraph.cpp:30:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
scanf("%d", &N);
~~~~~^~~~~~~~~~
telegraph.cpp:33:8: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
scanf("%d %d", &P[i], &x);
~~~~~^~~~~~~~~~~~~~~~~~~~
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
4 ms |
2680 KB |
Output is correct |
2 |
Correct |
4 ms |
2680 KB |
Output is correct |
3 |
Correct |
4 ms |
2680 KB |
Output is correct |
4 |
Correct |
4 ms |
2680 KB |
Output is correct |
5 |
Correct |
4 ms |
2680 KB |
Output is correct |
6 |
Correct |
4 ms |
2680 KB |
Output is correct |
7 |
Correct |
4 ms |
2684 KB |
Output is correct |
8 |
Correct |
4 ms |
2680 KB |
Output is correct |
9 |
Correct |
4 ms |
2680 KB |
Output is correct |
10 |
Correct |
4 ms |
2680 KB |
Output is correct |
11 |
Correct |
4 ms |
2680 KB |
Output is correct |
12 |
Correct |
5 ms |
2684 KB |
Output is correct |
13 |
Correct |
5 ms |
2684 KB |
Output is correct |
14 |
Correct |
4 ms |
2680 KB |
Output is correct |
15 |
Correct |
4 ms |
2680 KB |
Output is correct |
16 |
Correct |
4 ms |
2680 KB |
Output is correct |
17 |
Correct |
4 ms |
2680 KB |
Output is correct |
18 |
Correct |
4 ms |
2680 KB |
Output is correct |
19 |
Correct |
5 ms |
2680 KB |
Output is correct |
20 |
Correct |
4 ms |
2680 KB |
Output is correct |
21 |
Correct |
5 ms |
2680 KB |
Output is correct |
22 |
Correct |
4 ms |
2680 KB |
Output is correct |
23 |
Correct |
4 ms |
2680 KB |
Output is correct |
24 |
Correct |
4 ms |
2700 KB |
Output is correct |
25 |
Correct |
4 ms |
2680 KB |
Output is correct |
26 |
Correct |
4 ms |
2680 KB |
Output is correct |
27 |
Correct |
4 ms |
2680 KB |
Output is correct |
28 |
Correct |
4 ms |
2680 KB |
Output is correct |
29 |
Correct |
4 ms |
2680 KB |
Output is correct |
30 |
Correct |
4 ms |
2680 KB |
Output is correct |
31 |
Correct |
4 ms |
2680 KB |
Output is correct |
32 |
Correct |
4 ms |
2680 KB |
Output is correct |
33 |
Correct |
4 ms |
2680 KB |
Output is correct |
34 |
Correct |
4 ms |
2680 KB |
Output is correct |
35 |
Correct |
4 ms |
2680 KB |
Output is correct |
36 |
Correct |
4 ms |
2684 KB |
Output is correct |
37 |
Correct |
4 ms |
2680 KB |
Output is correct |
38 |
Correct |
4 ms |
2680 KB |
Output is correct |
39 |
Correct |
4 ms |
2680 KB |
Output is correct |
40 |
Correct |
4 ms |
2680 KB |
Output is correct |
41 |
Correct |
4 ms |
2680 KB |
Output is correct |
42 |
Correct |
4 ms |
2680 KB |
Output is correct |
43 |
Correct |
4 ms |
2680 KB |
Output is correct |
44 |
Correct |
4 ms |
2680 KB |
Output is correct |
45 |
Correct |
4 ms |
2680 KB |
Output is correct |
46 |
Correct |
4 ms |
2684 KB |
Output is correct |
47 |
Correct |
4 ms |
2680 KB |
Output is correct |
48 |
Correct |
4 ms |
2680 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
4 ms |
2680 KB |
Output is correct |
2 |
Correct |
4 ms |
2680 KB |
Output is correct |
3 |
Correct |
4 ms |
2680 KB |
Output is correct |
4 |
Correct |
4 ms |
2680 KB |
Output is correct |
5 |
Correct |
4 ms |
2680 KB |
Output is correct |
6 |
Correct |
4 ms |
2680 KB |
Output is correct |
7 |
Correct |
4 ms |
2684 KB |
Output is correct |
8 |
Correct |
4 ms |
2680 KB |
Output is correct |
9 |
Correct |
4 ms |
2680 KB |
Output is correct |
10 |
Correct |
4 ms |
2680 KB |
Output is correct |
11 |
Correct |
4 ms |
2680 KB |
Output is correct |
12 |
Correct |
5 ms |
2684 KB |
Output is correct |
13 |
Correct |
5 ms |
2684 KB |
Output is correct |
14 |
Correct |
4 ms |
2680 KB |
Output is correct |
15 |
Correct |
4 ms |
2680 KB |
Output is correct |
16 |
Correct |
4 ms |
2680 KB |
Output is correct |
17 |
Correct |
4 ms |
2680 KB |
Output is correct |
18 |
Correct |
4 ms |
2680 KB |
Output is correct |
19 |
Correct |
5 ms |
2680 KB |
Output is correct |
20 |
Correct |
4 ms |
2680 KB |
Output is correct |
21 |
Correct |
5 ms |
2680 KB |
Output is correct |
22 |
Correct |
4 ms |
2680 KB |
Output is correct |
23 |
Correct |
4 ms |
2680 KB |
Output is correct |
24 |
Correct |
4 ms |
2700 KB |
Output is correct |
25 |
Correct |
4 ms |
2680 KB |
Output is correct |
26 |
Correct |
4 ms |
2680 KB |
Output is correct |
27 |
Correct |
4 ms |
2680 KB |
Output is correct |
28 |
Correct |
4 ms |
2680 KB |
Output is correct |
29 |
Correct |
4 ms |
2680 KB |
Output is correct |
30 |
Correct |
4 ms |
2680 KB |
Output is correct |
31 |
Correct |
4 ms |
2680 KB |
Output is correct |
32 |
Correct |
4 ms |
2680 KB |
Output is correct |
33 |
Correct |
4 ms |
2680 KB |
Output is correct |
34 |
Correct |
4 ms |
2680 KB |
Output is correct |
35 |
Correct |
4 ms |
2680 KB |
Output is correct |
36 |
Correct |
4 ms |
2684 KB |
Output is correct |
37 |
Correct |
4 ms |
2680 KB |
Output is correct |
38 |
Correct |
4 ms |
2680 KB |
Output is correct |
39 |
Correct |
4 ms |
2680 KB |
Output is correct |
40 |
Correct |
4 ms |
2680 KB |
Output is correct |
41 |
Correct |
4 ms |
2680 KB |
Output is correct |
42 |
Correct |
4 ms |
2680 KB |
Output is correct |
43 |
Correct |
4 ms |
2680 KB |
Output is correct |
44 |
Correct |
4 ms |
2680 KB |
Output is correct |
45 |
Correct |
4 ms |
2680 KB |
Output is correct |
46 |
Correct |
4 ms |
2684 KB |
Output is correct |
47 |
Correct |
4 ms |
2680 KB |
Output is correct |
48 |
Correct |
4 ms |
2680 KB |
Output is correct |
49 |
Correct |
4 ms |
2680 KB |
Output is correct |
50 |
Correct |
4 ms |
2680 KB |
Output is correct |
51 |
Correct |
4 ms |
2708 KB |
Output is correct |
52 |
Correct |
4 ms |
2680 KB |
Output is correct |
53 |
Correct |
4 ms |
2684 KB |
Output is correct |
54 |
Correct |
4 ms |
2680 KB |
Output is correct |
55 |
Correct |
4 ms |
2680 KB |
Output is correct |
56 |
Correct |
4 ms |
2680 KB |
Output is correct |
57 |
Correct |
4 ms |
2680 KB |
Output is correct |
58 |
Correct |
4 ms |
2680 KB |
Output is correct |
59 |
Correct |
4 ms |
2680 KB |
Output is correct |
60 |
Correct |
4 ms |
2680 KB |
Output is correct |
61 |
Correct |
4 ms |
2680 KB |
Output is correct |
62 |
Correct |
4 ms |
2680 KB |
Output is correct |
63 |
Correct |
4 ms |
2680 KB |
Output is correct |
64 |
Correct |
5 ms |
2680 KB |
Output is correct |
65 |
Correct |
5 ms |
2684 KB |
Output is correct |
66 |
Correct |
4 ms |
2680 KB |
Output is correct |
67 |
Correct |
4 ms |
2680 KB |
Output is correct |
68 |
Correct |
4 ms |
2680 KB |
Output is correct |
69 |
Correct |
4 ms |
2680 KB |
Output is correct |
70 |
Correct |
4 ms |
2680 KB |
Output is correct |
71 |
Correct |
5 ms |
2680 KB |
Output is correct |
72 |
Correct |
4 ms |
2680 KB |
Output is correct |
73 |
Correct |
4 ms |
2680 KB |
Output is correct |
74 |
Correct |
4 ms |
2680 KB |
Output is correct |
75 |
Correct |
4 ms |
2680 KB |
Output is correct |
76 |
Correct |
4 ms |
2680 KB |
Output is correct |
77 |
Correct |
4 ms |
2680 KB |
Output is correct |
78 |
Correct |
5 ms |
2680 KB |
Output is correct |
79 |
Correct |
4 ms |
2680 KB |
Output is correct |
80 |
Correct |
4 ms |
2680 KB |
Output is correct |
81 |
Correct |
5 ms |
2680 KB |
Output is correct |
82 |
Correct |
4 ms |
2680 KB |
Output is correct |
83 |
Incorrect |
5 ms |
2680 KB |
Output isn't correct |
84 |
Halted |
0 ms |
0 KB |
- |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
4 ms |
2680 KB |
Output is correct |
2 |
Correct |
4 ms |
2680 KB |
Output is correct |
3 |
Correct |
4 ms |
2680 KB |
Output is correct |
4 |
Correct |
4 ms |
2680 KB |
Output is correct |
5 |
Correct |
4 ms |
2680 KB |
Output is correct |
6 |
Correct |
4 ms |
2680 KB |
Output is correct |
7 |
Correct |
4 ms |
2684 KB |
Output is correct |
8 |
Correct |
4 ms |
2680 KB |
Output is correct |
9 |
Correct |
4 ms |
2680 KB |
Output is correct |
10 |
Correct |
4 ms |
2680 KB |
Output is correct |
11 |
Correct |
4 ms |
2680 KB |
Output is correct |
12 |
Correct |
5 ms |
2684 KB |
Output is correct |
13 |
Correct |
5 ms |
2684 KB |
Output is correct |
14 |
Correct |
4 ms |
2680 KB |
Output is correct |
15 |
Correct |
4 ms |
2680 KB |
Output is correct |
16 |
Correct |
4 ms |
2680 KB |
Output is correct |
17 |
Correct |
4 ms |
2680 KB |
Output is correct |
18 |
Correct |
4 ms |
2680 KB |
Output is correct |
19 |
Correct |
5 ms |
2680 KB |
Output is correct |
20 |
Correct |
4 ms |
2680 KB |
Output is correct |
21 |
Correct |
5 ms |
2680 KB |
Output is correct |
22 |
Correct |
4 ms |
2680 KB |
Output is correct |
23 |
Correct |
4 ms |
2680 KB |
Output is correct |
24 |
Correct |
4 ms |
2700 KB |
Output is correct |
25 |
Correct |
4 ms |
2680 KB |
Output is correct |
26 |
Correct |
4 ms |
2680 KB |
Output is correct |
27 |
Correct |
4 ms |
2680 KB |
Output is correct |
28 |
Correct |
4 ms |
2680 KB |
Output is correct |
29 |
Correct |
4 ms |
2680 KB |
Output is correct |
30 |
Correct |
4 ms |
2680 KB |
Output is correct |
31 |
Correct |
4 ms |
2680 KB |
Output is correct |
32 |
Correct |
4 ms |
2680 KB |
Output is correct |
33 |
Correct |
4 ms |
2680 KB |
Output is correct |
34 |
Correct |
4 ms |
2680 KB |
Output is correct |
35 |
Correct |
4 ms |
2680 KB |
Output is correct |
36 |
Correct |
4 ms |
2684 KB |
Output is correct |
37 |
Correct |
4 ms |
2680 KB |
Output is correct |
38 |
Correct |
4 ms |
2680 KB |
Output is correct |
39 |
Correct |
4 ms |
2680 KB |
Output is correct |
40 |
Correct |
4 ms |
2680 KB |
Output is correct |
41 |
Correct |
4 ms |
2680 KB |
Output is correct |
42 |
Correct |
4 ms |
2680 KB |
Output is correct |
43 |
Correct |
4 ms |
2680 KB |
Output is correct |
44 |
Correct |
4 ms |
2680 KB |
Output is correct |
45 |
Correct |
4 ms |
2680 KB |
Output is correct |
46 |
Correct |
4 ms |
2684 KB |
Output is correct |
47 |
Correct |
4 ms |
2680 KB |
Output is correct |
48 |
Correct |
4 ms |
2680 KB |
Output is correct |
49 |
Correct |
4 ms |
2680 KB |
Output is correct |
50 |
Correct |
4 ms |
2680 KB |
Output is correct |
51 |
Correct |
4 ms |
2708 KB |
Output is correct |
52 |
Correct |
4 ms |
2680 KB |
Output is correct |
53 |
Correct |
4 ms |
2684 KB |
Output is correct |
54 |
Correct |
4 ms |
2680 KB |
Output is correct |
55 |
Correct |
4 ms |
2680 KB |
Output is correct |
56 |
Correct |
4 ms |
2680 KB |
Output is correct |
57 |
Correct |
4 ms |
2680 KB |
Output is correct |
58 |
Correct |
4 ms |
2680 KB |
Output is correct |
59 |
Correct |
4 ms |
2680 KB |
Output is correct |
60 |
Correct |
4 ms |
2680 KB |
Output is correct |
61 |
Correct |
4 ms |
2680 KB |
Output is correct |
62 |
Correct |
4 ms |
2680 KB |
Output is correct |
63 |
Correct |
4 ms |
2680 KB |
Output is correct |
64 |
Correct |
5 ms |
2680 KB |
Output is correct |
65 |
Correct |
5 ms |
2684 KB |
Output is correct |
66 |
Correct |
4 ms |
2680 KB |
Output is correct |
67 |
Correct |
4 ms |
2680 KB |
Output is correct |
68 |
Correct |
4 ms |
2680 KB |
Output is correct |
69 |
Correct |
4 ms |
2680 KB |
Output is correct |
70 |
Correct |
4 ms |
2680 KB |
Output is correct |
71 |
Correct |
5 ms |
2680 KB |
Output is correct |
72 |
Correct |
4 ms |
2680 KB |
Output is correct |
73 |
Correct |
4 ms |
2680 KB |
Output is correct |
74 |
Correct |
4 ms |
2680 KB |
Output is correct |
75 |
Correct |
4 ms |
2680 KB |
Output is correct |
76 |
Correct |
4 ms |
2680 KB |
Output is correct |
77 |
Correct |
4 ms |
2680 KB |
Output is correct |
78 |
Correct |
5 ms |
2680 KB |
Output is correct |
79 |
Correct |
4 ms |
2680 KB |
Output is correct |
80 |
Correct |
4 ms |
2680 KB |
Output is correct |
81 |
Correct |
5 ms |
2680 KB |
Output is correct |
82 |
Correct |
4 ms |
2680 KB |
Output is correct |
83 |
Incorrect |
5 ms |
2680 KB |
Output isn't correct |
84 |
Halted |
0 ms |
0 KB |
- |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
4 ms |
2680 KB |
Output is correct |
2 |
Correct |
4 ms |
2680 KB |
Output is correct |
3 |
Correct |
4 ms |
2680 KB |
Output is correct |
4 |
Correct |
4 ms |
2680 KB |
Output is correct |
5 |
Correct |
4 ms |
2680 KB |
Output is correct |
6 |
Correct |
4 ms |
2680 KB |
Output is correct |
7 |
Correct |
4 ms |
2684 KB |
Output is correct |
8 |
Correct |
4 ms |
2680 KB |
Output is correct |
9 |
Correct |
4 ms |
2680 KB |
Output is correct |
10 |
Correct |
4 ms |
2680 KB |
Output is correct |
11 |
Correct |
4 ms |
2680 KB |
Output is correct |
12 |
Correct |
5 ms |
2684 KB |
Output is correct |
13 |
Correct |
5 ms |
2684 KB |
Output is correct |
14 |
Correct |
4 ms |
2680 KB |
Output is correct |
15 |
Correct |
4 ms |
2680 KB |
Output is correct |
16 |
Correct |
4 ms |
2680 KB |
Output is correct |
17 |
Correct |
4 ms |
2680 KB |
Output is correct |
18 |
Correct |
4 ms |
2680 KB |
Output is correct |
19 |
Correct |
5 ms |
2680 KB |
Output is correct |
20 |
Correct |
4 ms |
2680 KB |
Output is correct |
21 |
Correct |
5 ms |
2680 KB |
Output is correct |
22 |
Correct |
4 ms |
2680 KB |
Output is correct |
23 |
Correct |
4 ms |
2680 KB |
Output is correct |
24 |
Correct |
4 ms |
2700 KB |
Output is correct |
25 |
Correct |
4 ms |
2680 KB |
Output is correct |
26 |
Correct |
4 ms |
2680 KB |
Output is correct |
27 |
Correct |
4 ms |
2680 KB |
Output is correct |
28 |
Correct |
4 ms |
2680 KB |
Output is correct |
29 |
Correct |
4 ms |
2680 KB |
Output is correct |
30 |
Correct |
4 ms |
2680 KB |
Output is correct |
31 |
Correct |
4 ms |
2680 KB |
Output is correct |
32 |
Correct |
4 ms |
2680 KB |
Output is correct |
33 |
Correct |
4 ms |
2680 KB |
Output is correct |
34 |
Correct |
4 ms |
2680 KB |
Output is correct |
35 |
Correct |
4 ms |
2680 KB |
Output is correct |
36 |
Correct |
4 ms |
2684 KB |
Output is correct |
37 |
Correct |
4 ms |
2680 KB |
Output is correct |
38 |
Correct |
4 ms |
2680 KB |
Output is correct |
39 |
Correct |
4 ms |
2680 KB |
Output is correct |
40 |
Correct |
4 ms |
2680 KB |
Output is correct |
41 |
Correct |
4 ms |
2680 KB |
Output is correct |
42 |
Correct |
4 ms |
2680 KB |
Output is correct |
43 |
Correct |
4 ms |
2680 KB |
Output is correct |
44 |
Correct |
4 ms |
2680 KB |
Output is correct |
45 |
Correct |
4 ms |
2680 KB |
Output is correct |
46 |
Correct |
4 ms |
2684 KB |
Output is correct |
47 |
Correct |
4 ms |
2680 KB |
Output is correct |
48 |
Correct |
4 ms |
2680 KB |
Output is correct |
49 |
Correct |
4 ms |
2680 KB |
Output is correct |
50 |
Correct |
4 ms |
2680 KB |
Output is correct |
51 |
Correct |
4 ms |
2708 KB |
Output is correct |
52 |
Correct |
4 ms |
2680 KB |
Output is correct |
53 |
Correct |
4 ms |
2684 KB |
Output is correct |
54 |
Correct |
4 ms |
2680 KB |
Output is correct |
55 |
Correct |
4 ms |
2680 KB |
Output is correct |
56 |
Correct |
4 ms |
2680 KB |
Output is correct |
57 |
Correct |
4 ms |
2680 KB |
Output is correct |
58 |
Correct |
4 ms |
2680 KB |
Output is correct |
59 |
Correct |
4 ms |
2680 KB |
Output is correct |
60 |
Correct |
4 ms |
2680 KB |
Output is correct |
61 |
Correct |
4 ms |
2680 KB |
Output is correct |
62 |
Correct |
4 ms |
2680 KB |
Output is correct |
63 |
Correct |
4 ms |
2680 KB |
Output is correct |
64 |
Correct |
5 ms |
2680 KB |
Output is correct |
65 |
Correct |
5 ms |
2684 KB |
Output is correct |
66 |
Correct |
4 ms |
2680 KB |
Output is correct |
67 |
Correct |
4 ms |
2680 KB |
Output is correct |
68 |
Correct |
4 ms |
2680 KB |
Output is correct |
69 |
Correct |
4 ms |
2680 KB |
Output is correct |
70 |
Correct |
4 ms |
2680 KB |
Output is correct |
71 |
Correct |
5 ms |
2680 KB |
Output is correct |
72 |
Correct |
4 ms |
2680 KB |
Output is correct |
73 |
Correct |
4 ms |
2680 KB |
Output is correct |
74 |
Correct |
4 ms |
2680 KB |
Output is correct |
75 |
Correct |
4 ms |
2680 KB |
Output is correct |
76 |
Correct |
4 ms |
2680 KB |
Output is correct |
77 |
Correct |
4 ms |
2680 KB |
Output is correct |
78 |
Correct |
5 ms |
2680 KB |
Output is correct |
79 |
Correct |
4 ms |
2680 KB |
Output is correct |
80 |
Correct |
4 ms |
2680 KB |
Output is correct |
81 |
Correct |
5 ms |
2680 KB |
Output is correct |
82 |
Correct |
4 ms |
2680 KB |
Output is correct |
83 |
Incorrect |
5 ms |
2680 KB |
Output isn't correct |
84 |
Halted |
0 ms |
0 KB |
- |