oj.uz

Submission #987707

# Submission time Handle Problem Language Result Execution time Memory
987707 2024-05-23T11:42:23 Z Tsagana Race (IOI11_race) C++14
100 / 100
 434 ms 90076 KB 
#include "race.h"

#include<bits/stdc++.h>

#define all(x) x.begin(), x.end()
#define pq priority_queue
#define lb lower_bound
#define ub upper_bound
#define pb push_back
#define eb emplace_back
#define F first
#define S second

using namespace std;

int d, dsu[200001], cc[200001], lz[200001][2], z, inf=2e9;
bitset<200001> vtd;
vector  <pair<int, int>> adj[200001];
multiset<pair<int, int>>  ms[200001];
 
int fd(int x) {
  if (dsu[x] == x) return x;
  return dsu[x] = fd(dsu[x]);
}
 
void jo(int x,int y) {
  int k, w; x = fd(x); y = fd(y);
  if (cc[x] < cc[y]) swap(x, y);
  
  for (auto it: ms[y]) {
    k = it.F + lz[y][1];
    w = it.S + lz[y][0];
    auto it2 = ms[x].lb({d - k - lz[x][1], -inf});  
    if (it2 != ms[x].end() && it2->F + lz[x][1] == d - k)
    z = min(z, w + it2->S + lz[x][0]);
  }
  for (auto it: ms[y]) {
    k = it.F + lz[y][1];
    w = it.S + lz[y][0];
    ms[x].insert({k - lz[x][1], w - lz[x][0]});
  }
  dsu[y] = x; cc[x] += cc[y];
}
 
void dfs(int x) {
  vtd[x] = cc[x] = 1; dsu[x] = x;
  ms[x].insert({0, 0});
  for (auto i: adj[x]) {
    int l = i.F, w = i.S;
    if (!vtd[l]) {
      dfs(l);
      lz[fd(l)][0]++;
      lz[fd(l)][1] += w;
      jo(x,l);
    }
  }
}
 
int best_path(int n,int od,int ed[][2],int wg[]) {
  int k, l;
  d = od;
  for (int i = 0; i < n-1; i++) {
    k = ed[i][0];
    l = ed[i][1];
    adj[k].pb({l, wg[i]});
    adj[l].pb({k, wg[i]});
  }
  z = inf;
  dfs(0);
  if (z == inf) z = -1;
  return z;
}

Compilation message

race.cpp: In function 'void dfs(int)':
race.cpp:46:18: warning: suggest parentheses around assignment used as truth value [-Wparentheses]
   46 |   vtd[x] = cc[x] = 1; dsu[x] = x;
      |            ~~~~~~^~~

Subtask #1
9.0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 8 ms 14424 KB Output is correct
2 Correct 7 ms 14428 KB Output is correct
3 Correct 7 ms 14428 KB Output is correct
4 Correct 9 ms 14428 KB Output is correct
5 Correct 9 ms 14424 KB Output is correct
6 Correct 8 ms 14428 KB Output is correct
7 Correct 7 ms 14424 KB Output is correct
8 Correct 11 ms 14428 KB Output is correct
9 Correct 10 ms 14428 KB Output is correct
10 Correct 9 ms 14428 KB Output is correct
11 Correct 7 ms 14428 KB Output is correct
12 Correct 9 ms 14428 KB Output is correct
13 Correct 8 ms 14428 KB Output is correct
14 Correct 7 ms 14484 KB Output is correct
15 Correct 8 ms 14428 KB Output is correct
16 Correct 8 ms 14428 KB Output is correct
17 Correct 8 ms 14428 KB Output is correct
18 Correct 8 ms 14428 KB Output is correct

Subtask #2
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 8 ms 14424 KB Output is correct
2 Correct 7 ms 14428 KB Output is correct
3 Correct 7 ms 14428 KB Output is correct
4 Correct 9 ms 14428 KB Output is correct
5 Correct 9 ms 14424 KB Output is correct
6 Correct 8 ms 14428 KB Output is correct
7 Correct 7 ms 14424 KB Output is correct
8 Correct 11 ms 14428 KB Output is correct
9 Correct 10 ms 14428 KB Output is correct
10 Correct 9 ms 14428 KB Output is correct
11 Correct 7 ms 14428 KB Output is correct
12 Correct 9 ms 14428 KB Output is correct
13 Correct 8 ms 14428 KB Output is correct
14 Correct 7 ms 14484 KB Output is correct
15 Correct 8 ms 14428 KB Output is correct
16 Correct 8 ms 14428 KB Output is correct
17 Correct 8 ms 14428 KB Output is correct
18 Correct 8 ms 14428 KB Output is correct
19 Correct 7 ms 14424 KB Output is correct
20 Correct 8 ms 14428 KB Output is correct
21 Correct 9 ms 14684 KB Output is correct
22 Correct 9 ms 14824 KB Output is correct
23 Correct 9 ms 14680 KB Output is correct
24 Correct 9 ms 14696 KB Output is correct
25 Correct 8 ms 14684 KB Output is correct
26 Correct 9 ms 14680 KB Output is correct
27 Correct 11 ms 14684 KB Output is correct
28 Correct 11 ms 14684 KB Output is correct
29 Correct 8 ms 14884 KB Output is correct
30 Correct 9 ms 14684 KB Output is correct
31 Correct 8 ms 14684 KB Output is correct
32 Correct 13 ms 14684 KB Output is correct
33 Correct 10 ms 14684 KB Output is correct
34 Correct 9 ms 14684 KB Output is correct
35 Correct 11 ms 14684 KB Output is correct
36 Correct 9 ms 14684 KB Output is correct
37 Correct 9 ms 14680 KB Output is correct
38 Correct 9 ms 14684 KB Output is correct

Subtask #3
22.0 / 22.0

# Verdict Execution time Memory Grader output
1 Correct 8 ms 14424 KB Output is correct
2 Correct 7 ms 14428 KB Output is correct
3 Correct 7 ms 14428 KB Output is correct
4 Correct 9 ms 14428 KB Output is correct
5 Correct 9 ms 14424 KB Output is correct
6 Correct 8 ms 14428 KB Output is correct
7 Correct 7 ms 14424 KB Output is correct
8 Correct 11 ms 14428 KB Output is correct
9 Correct 10 ms 14428 KB Output is correct
10 Correct 9 ms 14428 KB Output is correct
11 Correct 7 ms 14428 KB Output is correct
12 Correct 9 ms 14428 KB Output is correct
13 Correct 8 ms 14428 KB Output is correct
14 Correct 7 ms 14484 KB Output is correct
15 Correct 8 ms 14428 KB Output is correct
16 Correct 8 ms 14428 KB Output is correct
17 Correct 8 ms 14428 KB Output is correct
18 Correct 8 ms 14428 KB Output is correct
19 Correct 225 ms 51648 KB Output is correct
20 Correct 188 ms 51892 KB Output is correct
21 Correct 171 ms 51956 KB Output is correct
22 Correct 183 ms 48752 KB Output is correct
23 Correct 219 ms 61620 KB Output is correct
24 Correct 168 ms 49748 KB Output is correct
25 Correct 123 ms 37204 KB Output is correct
26 Correct 64 ms 38992 KB Output is correct
27 Correct 268 ms 57088 KB Output is correct
28 Correct 248 ms 63776 KB Output is correct
29 Correct 259 ms 63792 KB Output is correct
30 Correct 222 ms 57684 KB Output is correct
31 Correct 247 ms 57680 KB Output is correct
32 Correct 364 ms 57448 KB Output is correct
33 Correct 312 ms 72788 KB Output is correct
34 Correct 307 ms 71504 KB Output is correct

Subtask #4
57.0 / 57.0

# Verdict Execution time Memory Grader output
1 Correct 8 ms 14424 KB Output is correct
2 Correct 7 ms 14428 KB Output is correct
3 Correct 7 ms 14428 KB Output is correct
4 Correct 9 ms 14428 KB Output is correct
5 Correct 9 ms 14424 KB Output is correct
6 Correct 8 ms 14428 KB Output is correct
7 Correct 7 ms 14424 KB Output is correct
8 Correct 11 ms 14428 KB Output is correct
9 Correct 10 ms 14428 KB Output is correct
10 Correct 9 ms 14428 KB Output is correct
11 Correct 7 ms 14428 KB Output is correct
12 Correct 9 ms 14428 KB Output is correct
13 Correct 8 ms 14428 KB Output is correct
14 Correct 7 ms 14484 KB Output is correct
15 Correct 8 ms 14428 KB Output is correct
16 Correct 8 ms 14428 KB Output is correct
17 Correct 8 ms 14428 KB Output is correct
18 Correct 8 ms 14428 KB Output is correct
19 Correct 7 ms 14424 KB Output is correct
20 Correct 8 ms 14428 KB Output is correct
21 Correct 9 ms 14684 KB Output is correct
22 Correct 9 ms 14824 KB Output is correct
23 Correct 9 ms 14680 KB Output is correct
24 Correct 9 ms 14696 KB Output is correct
25 Correct 8 ms 14684 KB Output is correct
26 Correct 9 ms 14680 KB Output is correct
27 Correct 11 ms 14684 KB Output is correct
28 Correct 11 ms 14684 KB Output is correct
29 Correct 8 ms 14884 KB Output is correct
30 Correct 9 ms 14684 KB Output is correct
31 Correct 8 ms 14684 KB Output is correct
32 Correct 13 ms 14684 KB Output is correct
33 Correct 10 ms 14684 KB Output is correct
34 Correct 9 ms 14684 KB Output is correct
35 Correct 11 ms 14684 KB Output is correct
36 Correct 9 ms 14684 KB Output is correct
37 Correct 9 ms 14680 KB Output is correct
38 Correct 9 ms 14684 KB Output is correct
39 Correct 225 ms 51648 KB Output is correct
40 Correct 188 ms 51892 KB Output is correct
41 Correct 171 ms 51956 KB Output is correct
42 Correct 183 ms 48752 KB Output is correct
43 Correct 219 ms 61620 KB Output is correct
44 Correct 168 ms 49748 KB Output is correct
45 Correct 123 ms 37204 KB Output is correct
46 Correct 64 ms 38992 KB Output is correct
47 Correct 268 ms 57088 KB Output is correct
48 Correct 248 ms 63776 KB Output is correct
49 Correct 259 ms 63792 KB Output is correct
50 Correct 222 ms 57684 KB Output is correct
51 Correct 247 ms 57680 KB Output is correct
52 Correct 364 ms 57448 KB Output is correct
53 Correct 312 ms 72788 KB Output is correct
54 Correct 307 ms 71504 KB Output is correct
55 Correct 19 ms 17244 KB Output is correct
56 Correct 19 ms 17500 KB Output is correct
57 Correct 164 ms 61780 KB Output is correct
58 Correct 74 ms 31432 KB Output is correct
59 Correct 67 ms 39252 KB Output is correct
60 Correct 204 ms 63608 KB Output is correct
61 Correct 274 ms 56912 KB Output is correct
62 Correct 236 ms 57600 KB Output is correct
63 Correct 376 ms 57408 KB Output is correct
64 Correct 431 ms 90076 KB Output is correct
65 Correct 434 ms 84556 KB Output is correct
66 Correct 285 ms 59984 KB Output is correct
67 Correct 242 ms 50112 KB Output is correct
68 Correct 362 ms 57560 KB Output is correct
69 Correct 405 ms 59952 KB Output is correct
70 Correct 319 ms 56144 KB Output is correct