# |
Submission time |
Handle |
Problem |
Language |
Result |
Execution time |
Memory |
994443 |
2024-06-07T16:06:40 Z |
pannenkoek |
Race (IOI11_race) |
C++14 |
|
452 ms |
262144 KB |
#include <bits/stdc++.h>
using namespace std;
#define rep(i, a, b) for(int i = (a); i < (b); i++)
#define pb push_back
#define fi first
#define se second
using ll = long long;
using ld = long double;
using pii = pair<ll, ll>;
const int MAXN = 2e5 + 5;
vector<pii> adj[MAXN];
map<ll, ll> poss[MAXN];
ll off[MAXN];
ll res = 1e18;
int k;
void dfs(ll v, ll p){
poss[v][0] = 0;
for(auto [u, d]: adj[v]){
if(u == p) continue;
dfs(u, v);
// off[u] += d;
// if(poss[u].size() > poss[v].size()) {
// swap(off[u], off[v]);
// swap(poss[u], poss[v]);
// }
set<ll> new_entries;
map<ll, ll> old_vals;
for(auto [dis, cost]: poss[u]){
ll real_dis = dis + d;
if(real_dis > k) continue;
if(poss[v].count(k - real_dis) && !new_entries.count(k - real_dis)){
ll old_cost = poss[v][k - real_dis];
if(old_vals.count(k - real_dis)) {
old_cost = old_vals[k - real_dis];
}
res = min(old_cost + 1 + cost, res);
}
if(poss[v].count(real_dis)) {
old_vals[real_dis] = poss[v][real_dis];
poss[v][real_dis] = min(poss[v][real_dis], cost + 1);
} else {
poss[v][real_dis] = cost + 1;
new_entries.insert(real_dis);
}
}
}
}
int best_path(int N, int K, int H[][2], int L[]) {
rep(i, 0, N) {
adj[i] = {};
poss[i] = {};
off[i] = 0;
}
k = K;
rep(i, 0, N - 1) {
adj[H[i][0]].pb({H[i][1], L[i]});
adj[H[i][1]].pb({H[i][0], L[i]});
}
dfs(0, -1);
if(res < 1e18) return res;
else return -1;
}
Compilation message
race.cpp: In function 'void dfs(ll, ll)':
race.cpp:22:14: warning: structured bindings only available with '-std=c++17' or '-std=gnu++17'
22 | for(auto [u, d]: adj[v]){
| ^
race.cpp:32:18: warning: structured bindings only available with '-std=c++17' or '-std=gnu++17'
32 | for(auto [dis, cost]: poss[u]){
| ^
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
4 ms |
19804 KB |
Output is correct |
2 |
Correct |
3 ms |
19804 KB |
Output is correct |
3 |
Correct |
3 ms |
19804 KB |
Output is correct |
4 |
Correct |
3 ms |
19548 KB |
Output is correct |
5 |
Correct |
3 ms |
19548 KB |
Output is correct |
6 |
Correct |
3 ms |
19804 KB |
Output is correct |
7 |
Correct |
3 ms |
19548 KB |
Output is correct |
8 |
Correct |
2 ms |
19548 KB |
Output is correct |
9 |
Correct |
3 ms |
19804 KB |
Output is correct |
10 |
Correct |
3 ms |
19804 KB |
Output is correct |
11 |
Correct |
3 ms |
19548 KB |
Output is correct |
12 |
Correct |
3 ms |
19804 KB |
Output is correct |
13 |
Correct |
3 ms |
19992 KB |
Output is correct |
14 |
Correct |
3 ms |
19800 KB |
Output is correct |
15 |
Correct |
3 ms |
19804 KB |
Output is correct |
16 |
Correct |
4 ms |
19804 KB |
Output is correct |
17 |
Correct |
3 ms |
19804 KB |
Output is correct |
18 |
Correct |
3 ms |
19804 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
4 ms |
19804 KB |
Output is correct |
2 |
Correct |
3 ms |
19804 KB |
Output is correct |
3 |
Correct |
3 ms |
19804 KB |
Output is correct |
4 |
Correct |
3 ms |
19548 KB |
Output is correct |
5 |
Correct |
3 ms |
19548 KB |
Output is correct |
6 |
Correct |
3 ms |
19804 KB |
Output is correct |
7 |
Correct |
3 ms |
19548 KB |
Output is correct |
8 |
Correct |
2 ms |
19548 KB |
Output is correct |
9 |
Correct |
3 ms |
19804 KB |
Output is correct |
10 |
Correct |
3 ms |
19804 KB |
Output is correct |
11 |
Correct |
3 ms |
19548 KB |
Output is correct |
12 |
Correct |
3 ms |
19804 KB |
Output is correct |
13 |
Correct |
3 ms |
19992 KB |
Output is correct |
14 |
Correct |
3 ms |
19800 KB |
Output is correct |
15 |
Correct |
3 ms |
19804 KB |
Output is correct |
16 |
Correct |
4 ms |
19804 KB |
Output is correct |
17 |
Correct |
3 ms |
19804 KB |
Output is correct |
18 |
Correct |
3 ms |
19804 KB |
Output is correct |
19 |
Correct |
3 ms |
19548 KB |
Output is correct |
20 |
Correct |
3 ms |
19736 KB |
Output is correct |
21 |
Correct |
5 ms |
20060 KB |
Output is correct |
22 |
Correct |
3 ms |
19804 KB |
Output is correct |
23 |
Correct |
3 ms |
19800 KB |
Output is correct |
24 |
Correct |
3 ms |
19804 KB |
Output is correct |
25 |
Correct |
5 ms |
20264 KB |
Output is correct |
26 |
Correct |
4 ms |
20056 KB |
Output is correct |
27 |
Correct |
3 ms |
19804 KB |
Output is correct |
28 |
Correct |
5 ms |
20060 KB |
Output is correct |
29 |
Correct |
5 ms |
20316 KB |
Output is correct |
30 |
Correct |
5 ms |
20316 KB |
Output is correct |
31 |
Correct |
6 ms |
20312 KB |
Output is correct |
32 |
Correct |
5 ms |
20568 KB |
Output is correct |
33 |
Correct |
6 ms |
20828 KB |
Output is correct |
34 |
Correct |
7 ms |
21084 KB |
Output is correct |
35 |
Correct |
7 ms |
21508 KB |
Output is correct |
36 |
Correct |
8 ms |
21592 KB |
Output is correct |
37 |
Correct |
19 ms |
25436 KB |
Output is correct |
38 |
Correct |
12 ms |
23644 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
4 ms |
19804 KB |
Output is correct |
2 |
Correct |
3 ms |
19804 KB |
Output is correct |
3 |
Correct |
3 ms |
19804 KB |
Output is correct |
4 |
Correct |
3 ms |
19548 KB |
Output is correct |
5 |
Correct |
3 ms |
19548 KB |
Output is correct |
6 |
Correct |
3 ms |
19804 KB |
Output is correct |
7 |
Correct |
3 ms |
19548 KB |
Output is correct |
8 |
Correct |
2 ms |
19548 KB |
Output is correct |
9 |
Correct |
3 ms |
19804 KB |
Output is correct |
10 |
Correct |
3 ms |
19804 KB |
Output is correct |
11 |
Correct |
3 ms |
19548 KB |
Output is correct |
12 |
Correct |
3 ms |
19804 KB |
Output is correct |
13 |
Correct |
3 ms |
19992 KB |
Output is correct |
14 |
Correct |
3 ms |
19800 KB |
Output is correct |
15 |
Correct |
3 ms |
19804 KB |
Output is correct |
16 |
Correct |
4 ms |
19804 KB |
Output is correct |
17 |
Correct |
3 ms |
19804 KB |
Output is correct |
18 |
Correct |
3 ms |
19804 KB |
Output is correct |
19 |
Correct |
169 ms |
68944 KB |
Output is correct |
20 |
Correct |
175 ms |
70228 KB |
Output is correct |
21 |
Correct |
148 ms |
62808 KB |
Output is correct |
22 |
Correct |
135 ms |
54724 KB |
Output is correct |
23 |
Correct |
72 ms |
45388 KB |
Output is correct |
24 |
Correct |
68 ms |
43088 KB |
Output is correct |
25 |
Runtime error |
452 ms |
262144 KB |
Execution killed with signal 9 |
26 |
Halted |
0 ms |
0 KB |
- |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
4 ms |
19804 KB |
Output is correct |
2 |
Correct |
3 ms |
19804 KB |
Output is correct |
3 |
Correct |
3 ms |
19804 KB |
Output is correct |
4 |
Correct |
3 ms |
19548 KB |
Output is correct |
5 |
Correct |
3 ms |
19548 KB |
Output is correct |
6 |
Correct |
3 ms |
19804 KB |
Output is correct |
7 |
Correct |
3 ms |
19548 KB |
Output is correct |
8 |
Correct |
2 ms |
19548 KB |
Output is correct |
9 |
Correct |
3 ms |
19804 KB |
Output is correct |
10 |
Correct |
3 ms |
19804 KB |
Output is correct |
11 |
Correct |
3 ms |
19548 KB |
Output is correct |
12 |
Correct |
3 ms |
19804 KB |
Output is correct |
13 |
Correct |
3 ms |
19992 KB |
Output is correct |
14 |
Correct |
3 ms |
19800 KB |
Output is correct |
15 |
Correct |
3 ms |
19804 KB |
Output is correct |
16 |
Correct |
4 ms |
19804 KB |
Output is correct |
17 |
Correct |
3 ms |
19804 KB |
Output is correct |
18 |
Correct |
3 ms |
19804 KB |
Output is correct |
19 |
Correct |
3 ms |
19548 KB |
Output is correct |
20 |
Correct |
3 ms |
19736 KB |
Output is correct |
21 |
Correct |
5 ms |
20060 KB |
Output is correct |
22 |
Correct |
3 ms |
19804 KB |
Output is correct |
23 |
Correct |
3 ms |
19800 KB |
Output is correct |
24 |
Correct |
3 ms |
19804 KB |
Output is correct |
25 |
Correct |
5 ms |
20264 KB |
Output is correct |
26 |
Correct |
4 ms |
20056 KB |
Output is correct |
27 |
Correct |
3 ms |
19804 KB |
Output is correct |
28 |
Correct |
5 ms |
20060 KB |
Output is correct |
29 |
Correct |
5 ms |
20316 KB |
Output is correct |
30 |
Correct |
5 ms |
20316 KB |
Output is correct |
31 |
Correct |
6 ms |
20312 KB |
Output is correct |
32 |
Correct |
5 ms |
20568 KB |
Output is correct |
33 |
Correct |
6 ms |
20828 KB |
Output is correct |
34 |
Correct |
7 ms |
21084 KB |
Output is correct |
35 |
Correct |
7 ms |
21508 KB |
Output is correct |
36 |
Correct |
8 ms |
21592 KB |
Output is correct |
37 |
Correct |
19 ms |
25436 KB |
Output is correct |
38 |
Correct |
12 ms |
23644 KB |
Output is correct |
39 |
Correct |
169 ms |
68944 KB |
Output is correct |
40 |
Correct |
175 ms |
70228 KB |
Output is correct |
41 |
Correct |
148 ms |
62808 KB |
Output is correct |
42 |
Correct |
135 ms |
54724 KB |
Output is correct |
43 |
Correct |
72 ms |
45388 KB |
Output is correct |
44 |
Correct |
68 ms |
43088 KB |
Output is correct |
45 |
Runtime error |
452 ms |
262144 KB |
Execution killed with signal 9 |
46 |
Halted |
0 ms |
0 KB |
- |