oj.uz

Submission #885485

# Submission time Handle Problem Language Result Execution time Memory
885485 2023-12-09T20:22:49 Z epicci23 Stations (IOI20_stations) C++17
100 / 100
 612 ms 1652 KB 
#include "stations.h"
#include "bits/stdc++.h"
using namespace std;
#define pb push_back
#define sz(x) ((int)(x).size())
typedef long long ll;

vector<int> v[1005];
int ti=0,ttin[1005],ttout[1005],depth[1005];

void dfs(int c,int p){
  depth[c]=depth[p]^1;
  ttin[c]=++ti;
  for(int x:v[c]){
    if(x==p) continue;
    dfs(x,c);
  }
  ttout[c]=++ti;
}
	

vector<int> label(int n,int k,vector<int> u,vector<int> w){
  depth[0]=ti=0;
  for(int i=0;i<n;i++) v[i].clear();  

  vector<int> res(n);

  for(int i=0;i<sz(u);i++){
    v[u[i]].pb(w[i]);
    v[w[i]].pb(u[i]);
  }

  dfs(0,0);
  
  for(int i=0;i<n;i++){
    if(depth[i]) res[i]=ttin[i];
    else res[i]=ttout[i];
  }

  map<int,int> mp;
  int fl=0;
  for(int i=0;i<n;i++) mp[res[i]]=1;  
  for(auto x:mp) mp[x.first]=fl++;
  
  for(int i=0;i<n;i++) res[i]=mp[res[i]];

  return res;
}

int find_next_station(int s,int t,vector<int> c){

  if(sz(c)==1) return c[0];

  if(s<c[0]){
    for(int i=0;i<sz(c);i++) if(s<=t && t<=c[i]) return c[i];
    return c.back();
  }
  else{
    for(int i=sz(c)-1;i>=0;i--) if(c[i]<=t && t<=s) return c[i];
    return c[0];
  }
  
}

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 306 ms 948 KB Output is correct
2 Correct 275 ms 952 KB Output is correct
3 Correct 497 ms 684 KB Output is correct
4 Correct 376 ms 684 KB Output is correct
5 Correct 329 ms 684 KB Output is correct
6 Correct 262 ms 940 KB Output is correct
7 Correct 274 ms 684 KB Output is correct
8 Correct 1 ms 768 KB Output is correct
9 Correct 2 ms 768 KB Output is correct
10 Correct 0 ms 764 KB Output is correct

Subtask #2
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 268 ms 920 KB Output is correct
2 Correct 317 ms 824 KB Output is correct
3 Correct 529 ms 684 KB Output is correct
4 Correct 371 ms 684 KB Output is correct
5 Correct 367 ms 684 KB Output is correct
6 Correct 287 ms 684 KB Output is correct

Subtask #3
16.0 / 16.0

# Verdict Execution time Memory Grader output
1 Correct 348 ms 956 KB Output is correct
2 Correct 297 ms 952 KB Output is correct
3 Correct 581 ms 684 KB Output is correct
4 Correct 438 ms 684 KB Output is correct
5 Correct 394 ms 684 KB Output is correct
6 Correct 345 ms 956 KB Output is correct
7 Correct 275 ms 684 KB Output is correct
8 Correct 1 ms 768 KB Output is correct
9 Correct 2 ms 768 KB Output is correct
10 Correct 1 ms 768 KB Output is correct
11 Correct 404 ms 684 KB Output is correct
12 Correct 336 ms 1072 KB Output is correct
13 Correct 289 ms 1468 KB Output is correct
14 Correct 297 ms 936 KB Output is correct
15 Correct 31 ms 768 KB Output is correct
16 Correct 43 ms 876 KB Output is correct
17 Correct 67 ms 1168 KB Output is correct

Subtask #4
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 513 ms 684 KB Output is correct
2 Correct 446 ms 684 KB Output is correct
3 Correct 342 ms 936 KB Output is correct
4 Correct 2 ms 804 KB Output is correct
5 Correct 2 ms 764 KB Output is correct
6 Correct 1 ms 768 KB Output is correct
7 Correct 404 ms 684 KB Output is correct
8 Correct 586 ms 684 KB Output is correct
9 Correct 438 ms 684 KB Output is correct
10 Correct 362 ms 684 KB Output is correct
11 Correct 3 ms 768 KB Output is correct
12 Correct 3 ms 764 KB Output is correct
13 Correct 2 ms 768 KB Output is correct
14 Correct 2 ms 764 KB Output is correct
15 Correct 1 ms 768 KB Output is correct
16 Correct 324 ms 684 KB Output is correct
17 Correct 305 ms 684 KB Output is correct
18 Correct 374 ms 684 KB Output is correct
19 Correct 340 ms 684 KB Output is correct
20 Correct 317 ms 684 KB Output is correct

Subtask #5
61.0 / 61.0

# Verdict Execution time Memory Grader output
1 Correct 337 ms 948 KB Output is correct
2 Correct 308 ms 948 KB Output is correct
3 Correct 612 ms 684 KB Output is correct
4 Correct 410 ms 684 KB Output is correct
5 Correct 389 ms 684 KB Output is correct
6 Correct 274 ms 956 KB Output is correct
7 Correct 286 ms 684 KB Output is correct
8 Correct 1 ms 768 KB Output is correct
9 Correct 2 ms 764 KB Output is correct
10 Correct 0 ms 768 KB Output is correct
11 Correct 277 ms 912 KB Output is correct
12 Correct 307 ms 876 KB Output is correct
13 Correct 562 ms 684 KB Output is correct
14 Correct 496 ms 684 KB Output is correct
15 Correct 424 ms 684 KB Output is correct
16 Correct 278 ms 692 KB Output is correct
17 Correct 409 ms 684 KB Output is correct
18 Correct 320 ms 1060 KB Output is correct
19 Correct 319 ms 1460 KB Output is correct
20 Correct 289 ms 684 KB Output is correct
21 Correct 38 ms 768 KB Output is correct
22 Correct 44 ms 956 KB Output is correct
23 Correct 70 ms 920 KB Output is correct
24 Correct 2 ms 768 KB Output is correct
25 Correct 2 ms 768 KB Output is correct
26 Correct 2 ms 768 KB Output is correct
27 Correct 2 ms 768 KB Output is correct
28 Correct 0 ms 768 KB Output is correct
29 Correct 283 ms 940 KB Output is correct
30 Correct 361 ms 684 KB Output is correct
31 Correct 351 ms 684 KB Output is correct
32 Correct 306 ms 684 KB Output is correct
33 Correct 318 ms 684 KB Output is correct
34 Correct 211 ms 932 KB Output is correct
35 Correct 333 ms 1092 KB Output is correct
36 Correct 305 ms 1456 KB Output is correct
37 Correct 313 ms 1052 KB Output is correct
38 Correct 317 ms 1192 KB Output is correct
39 Correct 301 ms 1312 KB Output is correct
40 Correct 301 ms 1200 KB Output is correct
41 Correct 308 ms 1308 KB Output is correct
42 Correct 39 ms 892 KB Output is correct
43 Correct 65 ms 1264 KB Output is correct
44 Correct 95 ms 1020 KB Output is correct
45 Correct 90 ms 996 KB Output is correct
46 Correct 172 ms 892 KB Output is correct
47 Correct 165 ms 928 KB Output is correct
48 Correct 34 ms 1284 KB Output is correct
49 Correct 39 ms 1652 KB Output is correct