oj.uz

Submission #1075909

# Submission time Handle Problem Language Result Execution time Memory
1075909 2024-08-26T09:44:03 Z edogawa_something Simurgh (IOI17_simurgh) C++17
51 / 100
 147 ms 26716 KB 
#include "simurgh.h"
#include<bits/stdc++.h>
using namespace std;
typedef long long ll;
typedef vector<ll> vii;
typedef pair<ll,ll> pii;
#define F first
#define S second
#define all(v) v.begin(),v.end()
#define pb push_back
const ll M=250000;
vector<pii> adj[M];
bool vis[M];
vii sp;
void dfs(ll x) {
  vis[x]=1;
  for(auto it:adj[x]) {
    if(vis[it.F])
      continue;
    sp.pb(it.S);
    dfs(it.F);
  }
}
struct dsu {
  ll sz[250],pa[250];
  void init(ll x) {
    for(int i=0;i<x;i++)
      sz[i]=1,pa[i]=i;
  }
  ll get(ll x) {
    if(x==pa[x])
      return x;
    return pa[x]=get(pa[x]);
  }
  void unite(ll x,ll y) {
    x=get(x),y=get(y);
    if(x==y)
      return;
    if(sz[x]>sz[y])
      swap(x,y);
    pa[x]=y;
    sz[y]+=sz[x];
  }
  bool same(ll x,ll y) {
    return get(x)==get(y);
  }
}d;
ll cnt[M],cc[M];
bool a[M];
set<ll>s;
vector<int> find_roads(int n, std::vector<int> u, std::vector<int> vv) {
  for(int i=0;i<u.size();i++)
    adj[u[i]].pb({vv[i],i}),adj[vv[i]].pb({u[i],i});
  dfs(0);
  vector<int>ans,res;
  for(int i=0;i<u.size();i++)
    vis[i]=0;
  ll cntq=0;
  for(auto it:sp) {
    s.clear();
    ans.clear();
    d.init(n);
    vii v;
    for(auto itt:sp) {
      if(itt!=it)
        ans.pb(itt),d.unite(u[itt],vv[itt]);
    }
    for(int i=0;i<u.size();i++)
      cnt[i]=0;
    for(int i=0;i<u.size();i++) {
      if(!d.same(u[i],vv[i])&&!vis[i]) {
        ans.pb(i);
        assert(cntq<30000);
        ll x=count_common_roads(ans);
        cntq++;
        cnt[ans.back()]=x;
        s.insert(x);
        v.pb(i);
        ans.pop_back();
      }
    }
    if(s.size()==1) {
      bool cc[2];
      cc[0]=cc[1]=0;
      for(int i=0;i<u.size();i++) {
        if(!d.same(u[i],vv[i])&&vis[i]&&!cc[a[i]]) {
          cc[a[i]]=1;
          ans.pb(i);
          assert(cntq<30000);
          s.insert(count_common_roads(ans));
          cntq++;
          ans.pop_back();
        }
      }
    }
    for(auto it:v) {
      vis[it]=1;
      if(cnt[it]==*s.rbegin()) {
        a[it]=1;
      }
    }
  }
  for(int i=0;i<u.size();i++)
    if(a[i])res.pb(i);
  assert(res.size()==n-1);
  assert(cntq<=30000);
  return res;
}
/*
5 10
0 1
0 2
0 3
0 4
1 2
1 3
1 4
2 3
2 4
3 4
3 6 8 9

*/

Compilation message

simurgh.cpp: In function 'std::vector<int> find_roads(int, std::vector<int>, std::vector<int>)':
simurgh.cpp:52:16: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   52 |   for(int i=0;i<u.size();i++)
      |               ~^~~~~~~~~
simurgh.cpp:56:16: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   56 |   for(int i=0;i<u.size();i++)
      |               ~^~~~~~~~~
simurgh.cpp:68:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   68 |     for(int i=0;i<u.size();i++)
      |                 ~^~~~~~~~~
simurgh.cpp:70:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   70 |     for(int i=0;i<u.size();i++) {
      |                 ~^~~~~~~~~
simurgh.cpp:85:20: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   85 |       for(int i=0;i<u.size();i++) {
      |                   ~^~~~~~~~~
simurgh.cpp:103:16: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
  103 |   for(int i=0;i<u.size();i++)
      |               ~^~~~~~~~~
In file included from /usr/include/c++/10/cassert:44,
                 from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:33,
                 from simurgh.cpp:2:
simurgh.cpp:105:20: warning: comparison of integer expressions of different signedness: 'std::vector<int>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
  105 |   assert(res.size()==n-1);
      |          ~~~~~~~~~~^~~~~

Subtask #1
13.0 / 13.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 10332 KB correct
2 Correct 3 ms 10332 KB correct
3 Correct 2 ms 10332 KB correct
4 Correct 2 ms 10332 KB correct
5 Correct 2 ms 10332 KB correct
6 Correct 2 ms 10332 KB correct
7 Correct 2 ms 10332 KB correct
8 Correct 2 ms 10312 KB correct
9 Correct 2 ms 10332 KB correct
10 Correct 2 ms 10332 KB correct
11 Correct 2 ms 10332 KB correct
12 Correct 3 ms 10328 KB correct
13 Correct 2 ms 10332 KB correct

Subtask #2
17.0 / 17.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 10332 KB correct
2 Correct 3 ms 10332 KB correct
3 Correct 2 ms 10332 KB correct
4 Correct 2 ms 10332 KB correct
5 Correct 2 ms 10332 KB correct
6 Correct 2 ms 10332 KB correct
7 Correct 2 ms 10332 KB correct
8 Correct 2 ms 10312 KB correct
9 Correct 2 ms 10332 KB correct
10 Correct 2 ms 10332 KB correct
11 Correct 2 ms 10332 KB correct
12 Correct 3 ms 10328 KB correct
13 Correct 2 ms 10332 KB correct
14 Correct 4 ms 10584 KB correct
15 Correct 3 ms 10588 KB correct
16 Correct 3 ms 10588 KB correct
17 Correct 3 ms 10588 KB correct
18 Correct 2 ms 10332 KB correct
19 Correct 3 ms 10588 KB correct
20 Correct 4 ms 10588 KB correct
21 Correct 3 ms 10588 KB correct
22 Correct 3 ms 10588 KB correct
23 Correct 3 ms 10588 KB correct
24 Correct 3 ms 10588 KB correct
25 Correct 3 ms 10332 KB correct
26 Correct 3 ms 10588 KB correct
27 Correct 3 ms 10588 KB correct
28 Correct 3 ms 10328 KB correct
29 Correct 2 ms 10332 KB correct
30 Correct 3 ms 10588 KB correct
31 Correct 3 ms 10588 KB correct
32 Correct 3 ms 10588 KB correct
33 Correct 3 ms 10588 KB correct

Subtask #3
21.0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 10332 KB correct
2 Correct 3 ms 10332 KB correct
3 Correct 2 ms 10332 KB correct
4 Correct 2 ms 10332 KB correct
5 Correct 2 ms 10332 KB correct
6 Correct 2 ms 10332 KB correct
7 Correct 2 ms 10332 KB correct
8 Correct 2 ms 10312 KB correct
9 Correct 2 ms 10332 KB correct
10 Correct 2 ms 10332 KB correct
11 Correct 2 ms 10332 KB correct
12 Correct 3 ms 10328 KB correct
13 Correct 2 ms 10332 KB correct
14 Correct 4 ms 10584 KB correct
15 Correct 3 ms 10588 KB correct
16 Correct 3 ms 10588 KB correct
17 Correct 3 ms 10588 KB correct
18 Correct 2 ms 10332 KB correct
19 Correct 3 ms 10588 KB correct
20 Correct 4 ms 10588 KB correct
21 Correct 3 ms 10588 KB correct
22 Correct 3 ms 10588 KB correct
23 Correct 3 ms 10588 KB correct
24 Correct 3 ms 10588 KB correct
25 Correct 3 ms 10332 KB correct
26 Correct 3 ms 10588 KB correct
27 Correct 3 ms 10588 KB correct
28 Correct 3 ms 10328 KB correct
29 Correct 2 ms 10332 KB correct
30 Correct 3 ms 10588 KB correct
31 Correct 3 ms 10588 KB correct
32 Correct 3 ms 10588 KB correct
33 Correct 3 ms 10588 KB correct
34 Correct 139 ms 12128 KB correct
35 Correct 140 ms 12120 KB correct
36 Correct 90 ms 11868 KB correct
37 Correct 8 ms 10584 KB correct
38 Correct 138 ms 12356 KB correct
39 Correct 132 ms 12240 KB correct
40 Correct 95 ms 12360 KB correct
41 Correct 128 ms 12352 KB correct
42 Correct 147 ms 12124 KB correct
43 Correct 67 ms 11612 KB correct
44 Correct 57 ms 11356 KB correct
45 Correct 62 ms 11428 KB correct
46 Correct 47 ms 11100 KB correct
47 Correct 20 ms 10844 KB correct
48 Correct 5 ms 10588 KB correct
49 Correct 10 ms 10684 KB correct
50 Correct 21 ms 10816 KB correct
51 Correct 63 ms 11464 KB correct
52 Correct 54 ms 11600 KB correct
53 Correct 45 ms 11100 KB correct
54 Correct 71 ms 11820 KB correct
55 Correct 68 ms 11356 KB correct
56 Correct 69 ms 11452 KB correct
57 Correct 68 ms 11352 KB correct

Subtask #4
0 / 19.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 10328 KB correct
2 Correct 2 ms 10332 KB correct
3 Runtime error 26 ms 26716 KB Execution killed with signal 11
4 Halted 0 ms 0 KB -

Subtask #5
0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 10332 KB correct
2 Correct 3 ms 10332 KB correct
3 Correct 2 ms 10332 KB correct
4 Correct 2 ms 10332 KB correct
5 Correct 2 ms 10332 KB correct
6 Correct 2 ms 10332 KB correct
7 Correct 2 ms 10332 KB correct
8 Correct 2 ms 10312 KB correct
9 Correct 2 ms 10332 KB correct
10 Correct 2 ms 10332 KB correct
11 Correct 2 ms 10332 KB correct
12 Correct 3 ms 10328 KB correct
13 Correct 2 ms 10332 KB correct
14 Correct 4 ms 10584 KB correct
15 Correct 3 ms 10588 KB correct
16 Correct 3 ms 10588 KB correct
17 Correct 3 ms 10588 KB correct
18 Correct 2 ms 10332 KB correct
19 Correct 3 ms 10588 KB correct
20 Correct 4 ms 10588 KB correct
21 Correct 3 ms 10588 KB correct
22 Correct 3 ms 10588 KB correct
23 Correct 3 ms 10588 KB correct
24 Correct 3 ms 10588 KB correct
25 Correct 3 ms 10332 KB correct
26 Correct 3 ms 10588 KB correct
27 Correct 3 ms 10588 KB correct
28 Correct 3 ms 10328 KB correct
29 Correct 2 ms 10332 KB correct
30 Correct 3 ms 10588 KB correct
31 Correct 3 ms 10588 KB correct
32 Correct 3 ms 10588 KB correct
33 Correct 3 ms 10588 KB correct
34 Correct 139 ms 12128 KB correct
35 Correct 140 ms 12120 KB correct
36 Correct 90 ms 11868 KB correct
37 Correct 8 ms 10584 KB correct
38 Correct 138 ms 12356 KB correct
39 Correct 132 ms 12240 KB correct
40 Correct 95 ms 12360 KB correct
41 Correct 128 ms 12352 KB correct
42 Correct 147 ms 12124 KB correct
43 Correct 67 ms 11612 KB correct
44 Correct 57 ms 11356 KB correct
45 Correct 62 ms 11428 KB correct
46 Correct 47 ms 11100 KB correct
47 Correct 20 ms 10844 KB correct
48 Correct 5 ms 10588 KB correct
49 Correct 10 ms 10684 KB correct
50 Correct 21 ms 10816 KB correct
51 Correct 63 ms 11464 KB correct
52 Correct 54 ms 11600 KB correct
53 Correct 45 ms 11100 KB correct
54 Correct 71 ms 11820 KB correct
55 Correct 68 ms 11356 KB correct
56 Correct 69 ms 11452 KB correct
57 Correct 68 ms 11352 KB correct
58 Correct 2 ms 10328 KB correct
59 Correct 2 ms 10332 KB correct
60 Runtime error 26 ms 26716 KB Execution killed with signal 11
61 Halted 0 ms 0 KB -