| # |
Submission time |
Handle |
Problem |
Language |
Result |
Execution time |
Memory |
| 62448 |
2018-07-28T13:29:30 Z |
Sherazin |
Race (IOI11_race) |
C++14 |
|
1184 ms |
34564 KB |
//#include "race.h"
#include <bits/stdc++.h>
#define pii pair<int, int>
#define x first
#define y second
using namespace std;
const int N = 2e5 + 5;
const int M = 1e6 + 5;
int n, k, book;
int ans = -1;
int sub[N], dp[M], tim[M];
vector<pii> g[N];
bitset<N> chk;
int cent, mxnode;
int calcsz(int u, int p) {
sub[u] = 1;
for(pii v : g[u]) if(v.x != p && !chk[v.x]) sub[u] += calcsz(v.x, u);
return sub[u];
}
void centroid(int u, int p, int all) {
int mxsub = all - sub[u];
for(pii v : g[u]) if(v.x != p && !chk[v.x]) {
centroid(v.x, u, all);
mxsub = max(mxsub, sub[v.x]);
}
if(mxsub < mxnode) cent = u, mxnode = mxsub;
}
void dfs(int u, int p, int len, int cnt) {
if(len > k) return;
if(tim[k - len] == book && (cnt + dp[k - len] < ans || ans == -1)) ans = cnt + dp[k - len];
if(len == k && (cnt < ans || ans == -1)) ans = cnt;
for(pii v : g[u]) if(v.x != p && !chk[v.x]) dfs(v.x, u, len + v.y, cnt + 1);
}
void prep(int u, int p, int len, int cnt) {
if(len > k) return;
if(tim[len] < book || cnt < dp[len]) tim[len] = book, dp[len] = cnt;
for(pii v : g[u]) if(v.x != p && !chk[v.x]) prep(v.x, u, len + v.y, cnt + 1);
}
void proc(int u) {
book++;
if(calcsz(u, u) <= 1) return;
mxnode = sub[u] + 1;
centroid(u, u, sub[u]);
u = cent;
for(pii v : g[u]) if(!chk[v.x]) {
dfs(v.x, u, v.y, 1);
prep(v.x, u, v.y, 1);
}
chk[u] = 1;
for(pii v : g[u]) if(!chk[v.x]) proc(v.x);
}
int best_path(int N, int K, int H[][2], int L[])
{
n = N, k = K;
for(int i = 0; i < n - 1; i++) {
g[H[i][0]].emplace_back(H[i][1], L[i]);
g[H[i][1]].emplace_back(H[i][0], L[i]);
}
proc(0);
return ans;
}
/*int main() {
int n, k, h[100][2], l[100];
scanf("%d%d", &n, &k);
for(int i = 0; i < n - 1; i++) {
scanf("%d %d %d", &h[i][0], &h[i][1], &l[i]);
}
printf("%d", best_path(n, k, h, l));
return 0;
}*/
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
7 ms |
5112 KB |
Output is correct |
| 2 |
Correct |
9 ms |
5224 KB |
Output is correct |
| 3 |
Correct |
10 ms |
5232 KB |
Output is correct |
| 4 |
Correct |
9 ms |
5232 KB |
Output is correct |
| 5 |
Correct |
7 ms |
5244 KB |
Output is correct |
| 6 |
Correct |
8 ms |
5392 KB |
Output is correct |
| 7 |
Correct |
9 ms |
5392 KB |
Output is correct |
| 8 |
Correct |
8 ms |
5428 KB |
Output is correct |
| 9 |
Correct |
9 ms |
5428 KB |
Output is correct |
| 10 |
Correct |
8 ms |
5428 KB |
Output is correct |
| 11 |
Correct |
7 ms |
5428 KB |
Output is correct |
| 12 |
Correct |
8 ms |
5428 KB |
Output is correct |
| 13 |
Correct |
7 ms |
5428 KB |
Output is correct |
| 14 |
Correct |
8 ms |
5428 KB |
Output is correct |
| 15 |
Correct |
8 ms |
5428 KB |
Output is correct |
| 16 |
Correct |
8 ms |
5428 KB |
Output is correct |
| 17 |
Correct |
7 ms |
5428 KB |
Output is correct |
| 18 |
Correct |
9 ms |
5428 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
7 ms |
5112 KB |
Output is correct |
| 2 |
Correct |
9 ms |
5224 KB |
Output is correct |
| 3 |
Correct |
10 ms |
5232 KB |
Output is correct |
| 4 |
Correct |
9 ms |
5232 KB |
Output is correct |
| 5 |
Correct |
7 ms |
5244 KB |
Output is correct |
| 6 |
Correct |
8 ms |
5392 KB |
Output is correct |
| 7 |
Correct |
9 ms |
5392 KB |
Output is correct |
| 8 |
Correct |
8 ms |
5428 KB |
Output is correct |
| 9 |
Correct |
9 ms |
5428 KB |
Output is correct |
| 10 |
Correct |
8 ms |
5428 KB |
Output is correct |
| 11 |
Correct |
7 ms |
5428 KB |
Output is correct |
| 12 |
Correct |
8 ms |
5428 KB |
Output is correct |
| 13 |
Correct |
7 ms |
5428 KB |
Output is correct |
| 14 |
Correct |
8 ms |
5428 KB |
Output is correct |
| 15 |
Correct |
8 ms |
5428 KB |
Output is correct |
| 16 |
Correct |
8 ms |
5428 KB |
Output is correct |
| 17 |
Correct |
7 ms |
5428 KB |
Output is correct |
| 18 |
Correct |
9 ms |
5428 KB |
Output is correct |
| 19 |
Correct |
7 ms |
5428 KB |
Output is correct |
| 20 |
Correct |
8 ms |
5428 KB |
Output is correct |
| 21 |
Correct |
7 ms |
5428 KB |
Output is correct |
| 22 |
Correct |
12 ms |
10396 KB |
Output is correct |
| 23 |
Correct |
11 ms |
10396 KB |
Output is correct |
| 24 |
Correct |
14 ms |
11164 KB |
Output is correct |
| 25 |
Correct |
13 ms |
11164 KB |
Output is correct |
| 26 |
Correct |
11 ms |
11164 KB |
Output is correct |
| 27 |
Correct |
8 ms |
11164 KB |
Output is correct |
| 28 |
Correct |
10 ms |
11164 KB |
Output is correct |
| 29 |
Correct |
11 ms |
11164 KB |
Output is correct |
| 30 |
Correct |
12 ms |
11164 KB |
Output is correct |
| 31 |
Correct |
15 ms |
11164 KB |
Output is correct |
| 32 |
Correct |
13 ms |
11164 KB |
Output is correct |
| 33 |
Correct |
16 ms |
11164 KB |
Output is correct |
| 34 |
Correct |
15 ms |
11164 KB |
Output is correct |
| 35 |
Correct |
16 ms |
11220 KB |
Output is correct |
| 36 |
Correct |
15 ms |
11804 KB |
Output is correct |
| 37 |
Correct |
12 ms |
11804 KB |
Output is correct |
| 38 |
Correct |
12 ms |
11804 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
7 ms |
5112 KB |
Output is correct |
| 2 |
Correct |
9 ms |
5224 KB |
Output is correct |
| 3 |
Correct |
10 ms |
5232 KB |
Output is correct |
| 4 |
Correct |
9 ms |
5232 KB |
Output is correct |
| 5 |
Correct |
7 ms |
5244 KB |
Output is correct |
| 6 |
Correct |
8 ms |
5392 KB |
Output is correct |
| 7 |
Correct |
9 ms |
5392 KB |
Output is correct |
| 8 |
Correct |
8 ms |
5428 KB |
Output is correct |
| 9 |
Correct |
9 ms |
5428 KB |
Output is correct |
| 10 |
Correct |
8 ms |
5428 KB |
Output is correct |
| 11 |
Correct |
7 ms |
5428 KB |
Output is correct |
| 12 |
Correct |
8 ms |
5428 KB |
Output is correct |
| 13 |
Correct |
7 ms |
5428 KB |
Output is correct |
| 14 |
Correct |
8 ms |
5428 KB |
Output is correct |
| 15 |
Correct |
8 ms |
5428 KB |
Output is correct |
| 16 |
Correct |
8 ms |
5428 KB |
Output is correct |
| 17 |
Correct |
7 ms |
5428 KB |
Output is correct |
| 18 |
Correct |
9 ms |
5428 KB |
Output is correct |
| 19 |
Correct |
326 ms |
11804 KB |
Output is correct |
| 20 |
Correct |
328 ms |
11804 KB |
Output is correct |
| 21 |
Correct |
378 ms |
11804 KB |
Output is correct |
| 22 |
Correct |
316 ms |
11804 KB |
Output is correct |
| 23 |
Correct |
183 ms |
11804 KB |
Output is correct |
| 24 |
Correct |
109 ms |
11804 KB |
Output is correct |
| 25 |
Correct |
370 ms |
14236 KB |
Output is correct |
| 26 |
Correct |
173 ms |
17920 KB |
Output is correct |
| 27 |
Correct |
409 ms |
17920 KB |
Output is correct |
| 28 |
Correct |
773 ms |
30384 KB |
Output is correct |
| 29 |
Correct |
685 ms |
30384 KB |
Output is correct |
| 30 |
Correct |
365 ms |
30384 KB |
Output is correct |
| 31 |
Correct |
283 ms |
30384 KB |
Output is correct |
| 32 |
Correct |
413 ms |
30384 KB |
Output is correct |
| 33 |
Correct |
595 ms |
30384 KB |
Output is correct |
| 34 |
Correct |
637 ms |
30384 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
7 ms |
5112 KB |
Output is correct |
| 2 |
Correct |
9 ms |
5224 KB |
Output is correct |
| 3 |
Correct |
10 ms |
5232 KB |
Output is correct |
| 4 |
Correct |
9 ms |
5232 KB |
Output is correct |
| 5 |
Correct |
7 ms |
5244 KB |
Output is correct |
| 6 |
Correct |
8 ms |
5392 KB |
Output is correct |
| 7 |
Correct |
9 ms |
5392 KB |
Output is correct |
| 8 |
Correct |
8 ms |
5428 KB |
Output is correct |
| 9 |
Correct |
9 ms |
5428 KB |
Output is correct |
| 10 |
Correct |
8 ms |
5428 KB |
Output is correct |
| 11 |
Correct |
7 ms |
5428 KB |
Output is correct |
| 12 |
Correct |
8 ms |
5428 KB |
Output is correct |
| 13 |
Correct |
7 ms |
5428 KB |
Output is correct |
| 14 |
Correct |
8 ms |
5428 KB |
Output is correct |
| 15 |
Correct |
8 ms |
5428 KB |
Output is correct |
| 16 |
Correct |
8 ms |
5428 KB |
Output is correct |
| 17 |
Correct |
7 ms |
5428 KB |
Output is correct |
| 18 |
Correct |
9 ms |
5428 KB |
Output is correct |
| 19 |
Correct |
7 ms |
5428 KB |
Output is correct |
| 20 |
Correct |
8 ms |
5428 KB |
Output is correct |
| 21 |
Correct |
7 ms |
5428 KB |
Output is correct |
| 22 |
Correct |
12 ms |
10396 KB |
Output is correct |
| 23 |
Correct |
11 ms |
10396 KB |
Output is correct |
| 24 |
Correct |
14 ms |
11164 KB |
Output is correct |
| 25 |
Correct |
13 ms |
11164 KB |
Output is correct |
| 26 |
Correct |
11 ms |
11164 KB |
Output is correct |
| 27 |
Correct |
8 ms |
11164 KB |
Output is correct |
| 28 |
Correct |
10 ms |
11164 KB |
Output is correct |
| 29 |
Correct |
11 ms |
11164 KB |
Output is correct |
| 30 |
Correct |
12 ms |
11164 KB |
Output is correct |
| 31 |
Correct |
15 ms |
11164 KB |
Output is correct |
| 32 |
Correct |
13 ms |
11164 KB |
Output is correct |
| 33 |
Correct |
16 ms |
11164 KB |
Output is correct |
| 34 |
Correct |
15 ms |
11164 KB |
Output is correct |
| 35 |
Correct |
16 ms |
11220 KB |
Output is correct |
| 36 |
Correct |
15 ms |
11804 KB |
Output is correct |
| 37 |
Correct |
12 ms |
11804 KB |
Output is correct |
| 38 |
Correct |
12 ms |
11804 KB |
Output is correct |
| 39 |
Correct |
326 ms |
11804 KB |
Output is correct |
| 40 |
Correct |
328 ms |
11804 KB |
Output is correct |
| 41 |
Correct |
378 ms |
11804 KB |
Output is correct |
| 42 |
Correct |
316 ms |
11804 KB |
Output is correct |
| 43 |
Correct |
183 ms |
11804 KB |
Output is correct |
| 44 |
Correct |
109 ms |
11804 KB |
Output is correct |
| 45 |
Correct |
370 ms |
14236 KB |
Output is correct |
| 46 |
Correct |
173 ms |
17920 KB |
Output is correct |
| 47 |
Correct |
409 ms |
17920 KB |
Output is correct |
| 48 |
Correct |
773 ms |
30384 KB |
Output is correct |
| 49 |
Correct |
685 ms |
30384 KB |
Output is correct |
| 50 |
Correct |
365 ms |
30384 KB |
Output is correct |
| 51 |
Correct |
283 ms |
30384 KB |
Output is correct |
| 52 |
Correct |
413 ms |
30384 KB |
Output is correct |
| 53 |
Correct |
595 ms |
30384 KB |
Output is correct |
| 54 |
Correct |
637 ms |
30384 KB |
Output is correct |
| 55 |
Correct |
18 ms |
30384 KB |
Output is correct |
| 56 |
Correct |
25 ms |
30384 KB |
Output is correct |
| 57 |
Correct |
147 ms |
30384 KB |
Output is correct |
| 58 |
Correct |
62 ms |
30384 KB |
Output is correct |
| 59 |
Correct |
151 ms |
30384 KB |
Output is correct |
| 60 |
Correct |
1080 ms |
34564 KB |
Output is correct |
| 61 |
Correct |
360 ms |
34564 KB |
Output is correct |
| 62 |
Correct |
378 ms |
34564 KB |
Output is correct |
| 63 |
Correct |
538 ms |
34564 KB |
Output is correct |
| 64 |
Correct |
1184 ms |
34564 KB |
Output is correct |
| 65 |
Correct |
577 ms |
34564 KB |
Output is correct |
| 66 |
Correct |
1069 ms |
34564 KB |
Output is correct |
| 67 |
Correct |
193 ms |
34564 KB |
Output is correct |
| 68 |
Correct |
496 ms |
34564 KB |
Output is correct |
| 69 |
Correct |
530 ms |
34564 KB |
Output is correct |
| 70 |
Correct |
504 ms |
34564 KB |
Output is correct |
