#include<bits/stdc++.h>
using namespace std;
const long long INF = 1e18;
const int nax = 5003;
long long val[nax], cost[nax];
vector<int>g[nax];
int n;
bool root[nax];
long long dp[nax][nax];
long long solve(int v, int prv) {
long long &ret = dp[v][prv];
if(ret!=-1) return ret;
ret = INF;
if(!prv || val[v]>=val[prv]) {
ret = 0;
for(int u : g[v]) {
ret += solve(u, v);
}
}
long long an = cost[v];
for(int u : g[v]) {
an += solve(u, prv);
}
ret = min(ret, an);
return ret;
}
void PlayGround() {
cin>>n;
for(int i=1; i<=n; ++i) root[i] = 1;
for(int i=1; i<=n; ++i) {
int to;
cin>>to>>val[i]>>cost[i];
if(to-i) g[to].push_back(i), root[i] = 0;
}
long long ans = 0;
memset(dp, -1, sizeof dp);
for(int i=1; i<=n; ++i) if(root[i]) {
ans += solve(i, 0);
}
cout<<ans<<'\n';
// cerr << "Time elapsed: " << 1.0 * clock() / CLOCKS_PER_SEC << " s.\n";
}
int main() {
ios_base::sync_with_stdio(false);
cin.tie(NULL);
PlayGround();
return 0;
}
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
70 ms |
196332 KB |
Output is correct |
2 |
Correct |
79 ms |
196296 KB |
Output is correct |
3 |
Correct |
78 ms |
196380 KB |
Output is correct |
4 |
Correct |
73 ms |
196264 KB |
Output is correct |
5 |
Correct |
76 ms |
196652 KB |
Output is correct |
6 |
Correct |
77 ms |
196632 KB |
Output is correct |
7 |
Correct |
85 ms |
196616 KB |
Output is correct |
8 |
Correct |
81 ms |
196584 KB |
Output is correct |
9 |
Correct |
80 ms |
196556 KB |
Output is correct |
10 |
Correct |
79 ms |
196640 KB |
Output is correct |
11 |
Correct |
81 ms |
196632 KB |
Output is correct |
12 |
Correct |
787 ms |
197192 KB |
Output is correct |
13 |
Correct |
757 ms |
197176 KB |
Output is correct |
14 |
Correct |
407 ms |
196900 KB |
Output is correct |
15 |
Correct |
344 ms |
196936 KB |
Output is correct |
16 |
Correct |
82 ms |
196560 KB |
Output is correct |
17 |
Correct |
91 ms |
196568 KB |
Output is correct |
18 |
Correct |
77 ms |
196548 KB |
Output is correct |
19 |
Correct |
360 ms |
196864 KB |
Output is correct |
20 |
Correct |
460 ms |
196760 KB |
Output is correct |
21 |
Correct |
403 ms |
196948 KB |
Output is correct |
22 |
Correct |
82 ms |
196508 KB |
Output is correct |
23 |
Correct |
83 ms |
196584 KB |
Output is correct |
24 |
Correct |
512 ms |
196892 KB |
Output is correct |
25 |
Correct |
462 ms |
196888 KB |
Output is correct |
26 |
Correct |
322 ms |
197188 KB |
Output is correct |
27 |
Correct |
205 ms |
196796 KB |
Output is correct |
28 |
Correct |
333 ms |
196920 KB |
Output is correct |
29 |
Correct |
464 ms |
197032 KB |
Output is correct |
30 |
Correct |
356 ms |
196924 KB |
Output is correct |
31 |
Correct |
344 ms |
196960 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
70 ms |
196332 KB |
Output is correct |
2 |
Correct |
79 ms |
196296 KB |
Output is correct |
3 |
Correct |
78 ms |
196380 KB |
Output is correct |
4 |
Correct |
73 ms |
196264 KB |
Output is correct |
5 |
Correct |
76 ms |
196652 KB |
Output is correct |
6 |
Correct |
77 ms |
196632 KB |
Output is correct |
7 |
Correct |
85 ms |
196616 KB |
Output is correct |
8 |
Correct |
81 ms |
196584 KB |
Output is correct |
9 |
Correct |
80 ms |
196556 KB |
Output is correct |
10 |
Correct |
79 ms |
196640 KB |
Output is correct |
11 |
Correct |
81 ms |
196632 KB |
Output is correct |
12 |
Correct |
787 ms |
197192 KB |
Output is correct |
13 |
Correct |
757 ms |
197176 KB |
Output is correct |
14 |
Correct |
407 ms |
196900 KB |
Output is correct |
15 |
Correct |
344 ms |
196936 KB |
Output is correct |
16 |
Correct |
82 ms |
196560 KB |
Output is correct |
17 |
Correct |
91 ms |
196568 KB |
Output is correct |
18 |
Correct |
77 ms |
196548 KB |
Output is correct |
19 |
Correct |
360 ms |
196864 KB |
Output is correct |
20 |
Correct |
460 ms |
196760 KB |
Output is correct |
21 |
Correct |
403 ms |
196948 KB |
Output is correct |
22 |
Correct |
82 ms |
196508 KB |
Output is correct |
23 |
Correct |
83 ms |
196584 KB |
Output is correct |
24 |
Correct |
512 ms |
196892 KB |
Output is correct |
25 |
Correct |
462 ms |
196888 KB |
Output is correct |
26 |
Correct |
322 ms |
197188 KB |
Output is correct |
27 |
Correct |
205 ms |
196796 KB |
Output is correct |
28 |
Correct |
333 ms |
196920 KB |
Output is correct |
29 |
Correct |
464 ms |
197032 KB |
Output is correct |
30 |
Correct |
356 ms |
196924 KB |
Output is correct |
31 |
Correct |
344 ms |
196960 KB |
Output is correct |
32 |
Correct |
85 ms |
196604 KB |
Output is correct |
33 |
Runtime error |
4 ms |
848 KB |
Execution killed with signal 11 |
34 |
Halted |
0 ms |
0 KB |
- |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
70 ms |
196332 KB |
Output is correct |
2 |
Correct |
79 ms |
196296 KB |
Output is correct |
3 |
Correct |
78 ms |
196380 KB |
Output is correct |
4 |
Correct |
73 ms |
196264 KB |
Output is correct |
5 |
Correct |
76 ms |
196652 KB |
Output is correct |
6 |
Correct |
77 ms |
196632 KB |
Output is correct |
7 |
Correct |
85 ms |
196616 KB |
Output is correct |
8 |
Correct |
81 ms |
196584 KB |
Output is correct |
9 |
Correct |
80 ms |
196556 KB |
Output is correct |
10 |
Correct |
79 ms |
196640 KB |
Output is correct |
11 |
Correct |
81 ms |
196632 KB |
Output is correct |
12 |
Correct |
787 ms |
197192 KB |
Output is correct |
13 |
Correct |
757 ms |
197176 KB |
Output is correct |
14 |
Correct |
407 ms |
196900 KB |
Output is correct |
15 |
Correct |
344 ms |
196936 KB |
Output is correct |
16 |
Correct |
82 ms |
196560 KB |
Output is correct |
17 |
Correct |
91 ms |
196568 KB |
Output is correct |
18 |
Correct |
77 ms |
196548 KB |
Output is correct |
19 |
Correct |
360 ms |
196864 KB |
Output is correct |
20 |
Correct |
460 ms |
196760 KB |
Output is correct |
21 |
Correct |
403 ms |
196948 KB |
Output is correct |
22 |
Correct |
82 ms |
196508 KB |
Output is correct |
23 |
Correct |
83 ms |
196584 KB |
Output is correct |
24 |
Correct |
512 ms |
196892 KB |
Output is correct |
25 |
Correct |
462 ms |
196888 KB |
Output is correct |
26 |
Correct |
322 ms |
197188 KB |
Output is correct |
27 |
Correct |
205 ms |
196796 KB |
Output is correct |
28 |
Correct |
333 ms |
196920 KB |
Output is correct |
29 |
Correct |
464 ms |
197032 KB |
Output is correct |
30 |
Correct |
356 ms |
196924 KB |
Output is correct |
31 |
Correct |
344 ms |
196960 KB |
Output is correct |
32 |
Correct |
85 ms |
196604 KB |
Output is correct |
33 |
Runtime error |
4 ms |
848 KB |
Execution killed with signal 11 |
34 |
Halted |
0 ms |
0 KB |
- |