oj.uz

Submission #143911

# Submission time Handle Problem Language Result Execution time Memory
143911 2019-08-15T12:44:07 Z Bodo171 Split the Attractions (IOI19_split) C++14
40 / 100
 174 ms 19860 KB 
#include "split.h"
#include <iostream>
#include <algorithm>
using namespace std;
const int nmax=100005;
vector<int> res;
vector<int> ad[nmax],v[nmax];
pair<int,int> C[3];
int viz[nmax],q[nmax],w[nmax],tt[nmax];
int i,n;
void sterge(int A,int B)
{
    for(int it=0;it<2;it++)
    {
        for(int i=0;i<v[A].size();i++)
            if(v[A][i]==B)
        {
            swap(v[A][i],v[A].back());
            v[A].pop_back();
        }
        swap(A,B);
    }
}
void et(int x,int cate,int col)
{
    int p,u;
    for(i=0;i<n;i++)
        viz[i]=0;
    viz[x]=1;
    q[u=1]=x;
    for(p=1;p<=u;p++)
    {
        x=q[p];
        for(int i=0;i<v[x].size();i++)
            if(!viz[v[x][i]])
        {
            q[++u]=v[x][i];
            viz[v[x][i]]=1;
        }
    }
    for(i=1;i<=cate;i++)
        res[q[i]]=col;
}
bool gasit;
void solve(int x)
{
    w[x]=1;
    for(int i=0;i<v[x].size();i++)
        if((!w[v[x][i]]))
    {
        tt[v[x][i]]=x;
        solve(v[x][i]);
        w[x]+=w[v[x][i]];
    }
    if(!gasit)
    {
        if(w[x]>=C[0].first&&n-w[x]>=C[1].first)
        {
            sterge(x,tt[x]);
            et(x,C[0].first,C[0].second);
            et(tt[x],C[1].first,C[1].second);
            gasit=1;
        }
        else
        {
            if(w[x]>=C[1].first&&n-w[x]>=C[0].first)
            {
                sterge(x,tt[x]);
                et(x,C[1].first,C[1].second);
                et(tt[x],C[0].first,C[0].second);
                gasit=1;
            }
        }
    }
}
void dfs(int x)
{
    for(int i=0;i<ad[x].size();i++)
        if(tt[ad[x][i]]==-1)
    {
        tt[ad[x][i]]=x;
        dfs(ad[x][i]);
    }
}
void get_spanning(int x)
{
    for(i=0;i<n;i++)
        tt[i]=-1;
    tt[x]=x;
    dfs(x);
    for(i=0;i<n;i++)
        v[i].clear();
    for(i=0;i<n;i++)
        if(tt[i]!=i)
    {
        v[tt[i]].push_back(i);
        v[i].push_back(tt[i]);
    }
    solve(0);
}
vector<int> find_split(int nn, int a, int b, int c, vector<int> p, vector<int> q) {
    n=nn;
    for(i=0;i<p.size();i++)
    {
        ad[p[i]].push_back(q[i]);
        ad[q[i]].push_back(p[i]);
    }
    res.resize(n);
    for(i=0;i<n;i++)
        res[i]=0;
    pair<int,int> v[3];
    C[0]={a,1};
    C[1]={b,2};
    C[2]={c,3};
    sort(C,C+3);
    get_spanning(0);
    if(gasit)
    {
        int oth=(C[0].second^C[1].second);
        for(i=0; i<n; i++)
            if(!res[i])
                res[i]=oth;
    }
	return res;
}

Compilation message

split.cpp: In function 'void sterge(int, int)':
split.cpp:15:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
         for(int i=0;i<v[A].size();i++)
                     ~^~~~~~~~~~~~
split.cpp: In function 'void et(int, int, int)':
split.cpp:34:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
         for(int i=0;i<v[x].size();i++)
                     ~^~~~~~~~~~~~
split.cpp: In function 'void solve(int)':
split.cpp:48:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
     for(int i=0;i<v[x].size();i++)
                 ~^~~~~~~~~~~~
split.cpp: In function 'void dfs(int)':
split.cpp:78:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
     for(int i=0;i<ad[x].size();i++)
                 ~^~~~~~~~~~~~~
split.cpp: In function 'std::vector<int> find_split(int, int, int, int, std::vector<int>, std::vector<int>)':
split.cpp:103:14: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
     for(i=0;i<p.size();i++)
             ~^~~~~~~~~
split.cpp:111:19: warning: unused variable 'v' [-Wunused-variable]
     pair<int,int> v[3];
                   ^

Subtask #1
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 6 ms 4988 KB ok, correct split
2 Correct 6 ms 4984 KB ok, correct split
3 Correct 6 ms 4984 KB ok, correct split
4 Correct 6 ms 4984 KB ok, correct split
5 Correct 6 ms 5112 KB ok, correct split
6 Correct 6 ms 5112 KB ok, correct split
7 Correct 154 ms 19576 KB ok, correct split
8 Correct 152 ms 18296 KB ok, correct split
9 Correct 148 ms 18004 KB ok, correct split
10 Correct 156 ms 19832 KB ok, correct split
11 Correct 171 ms 19764 KB ok, correct split

Subtask #2
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 6 ms 4988 KB ok, correct split
2 Correct 7 ms 4984 KB ok, correct split
3 Correct 6 ms 4984 KB ok, correct split
4 Correct 160 ms 18384 KB ok, correct split
5 Correct 122 ms 15480 KB ok, correct split
6 Correct 146 ms 19860 KB ok, correct split
7 Correct 143 ms 18260 KB ok, correct split
8 Correct 174 ms 16888 KB ok, correct split
9 Correct 126 ms 15436 KB ok, correct split
10 Correct 82 ms 15984 KB ok, correct split
11 Correct 78 ms 15988 KB ok, correct split
12 Correct 83 ms 15984 KB ok, correct split

Subtask #3
22.0 / 22.0

# Verdict Execution time Memory Grader output
1 Correct 6 ms 4984 KB ok, correct split
2 Correct 126 ms 15480 KB ok, correct split
3 Correct 47 ms 9212 KB ok, correct split
4 Correct 6 ms 4984 KB ok, correct split
5 Correct 136 ms 16820 KB ok, correct split
6 Correct 170 ms 16644 KB ok, correct split
7 Correct 141 ms 16408 KB ok, correct split
8 Correct 154 ms 17332 KB ok, correct split
9 Correct 139 ms 16376 KB ok, correct split
10 Correct 39 ms 8276 KB ok, no valid answer
11 Correct 55 ms 9848 KB ok, no valid answer
12 Correct 95 ms 14964 KB ok, no valid answer
13 Correct 127 ms 14712 KB ok, no valid answer
14 Correct 81 ms 15216 KB ok, no valid answer

Subtask #4
0 / 24.0

# Verdict Execution time Memory Grader output
1 Correct 6 ms 4984 KB ok, correct split
2 Correct 6 ms 4984 KB ok, no valid answer
3 Correct 6 ms 4984 KB ok, correct split
4 Correct 6 ms 4984 KB ok, correct split
5 Correct 6 ms 4984 KB ok, correct split
6 Correct 6 ms 5112 KB ok, correct split
7 Correct 6 ms 4984 KB ok, correct split
8 Correct 6 ms 4984 KB ok, correct split
9 Correct 9 ms 5368 KB ok, correct split
10 Correct 9 ms 5368 KB ok, correct split
11 Correct 6 ms 4984 KB ok, correct split
12 Correct 9 ms 5368 KB ok, correct split
13 Correct 6 ms 4984 KB ok, correct split
14 Correct 6 ms 4984 KB ok, correct split
15 Correct 6 ms 4856 KB ok, correct split
16 Correct 6 ms 4984 KB ok, correct split
17 Correct 6 ms 4984 KB ok, correct split
18 Correct 11 ms 5112 KB ok, correct split
19 Correct 6 ms 5112 KB ok, correct split
20 Correct 7 ms 5112 KB ok, correct split
21 Correct 8 ms 5320 KB ok, correct split
22 Correct 8 ms 5372 KB ok, correct split
23 Correct 9 ms 5372 KB ok, correct split
24 Correct 8 ms 5240 KB ok, correct split
25 Correct 11 ms 5340 KB ok, correct split
26 Incorrect 8 ms 5372 KB jury found a solution, contestant did not
27 Halted 0 ms 0 KB -

Subtask #5
0 / 36.0

# Verdict Execution time Memory Grader output
1 Correct 6 ms 4988 KB ok, correct split
2 Correct 6 ms 4984 KB ok, correct split
3 Correct 6 ms 4984 KB ok, correct split
4 Correct 6 ms 4984 KB ok, correct split
5 Correct 6 ms 5112 KB ok, correct split
6 Correct 6 ms 5112 KB ok, correct split
7 Correct 154 ms 19576 KB ok, correct split
8 Correct 152 ms 18296 KB ok, correct split
9 Correct 148 ms 18004 KB ok, correct split
10 Correct 156 ms 19832 KB ok, correct split
11 Correct 171 ms 19764 KB ok, correct split
12 Correct 6 ms 4988 KB ok, correct split
13 Correct 7 ms 4984 KB ok, correct split
14 Correct 6 ms 4984 KB ok, correct split
15 Correct 160 ms 18384 KB ok, correct split
16 Correct 122 ms 15480 KB ok, correct split
17 Correct 146 ms 19860 KB ok, correct split
18 Correct 143 ms 18260 KB ok, correct split
19 Correct 174 ms 16888 KB ok, correct split
20 Correct 126 ms 15436 KB ok, correct split
21 Correct 82 ms 15984 KB ok, correct split
22 Correct 78 ms 15988 KB ok, correct split
23 Correct 83 ms 15984 KB ok, correct split
24 Correct 6 ms 4984 KB ok, correct split
25 Correct 126 ms 15480 KB ok, correct split
26 Correct 47 ms 9212 KB ok, correct split
27 Correct 6 ms 4984 KB ok, correct split
28 Correct 136 ms 16820 KB ok, correct split
29 Correct 170 ms 16644 KB ok, correct split
30 Correct 141 ms 16408 KB ok, correct split
31 Correct 154 ms 17332 KB ok, correct split
32 Correct 139 ms 16376 KB ok, correct split
33 Correct 39 ms 8276 KB ok, no valid answer
34 Correct 55 ms 9848 KB ok, no valid answer
35 Correct 95 ms 14964 KB ok, no valid answer
36 Correct 127 ms 14712 KB ok, no valid answer
37 Correct 81 ms 15216 KB ok, no valid answer
38 Correct 6 ms 4984 KB ok, correct split
39 Correct 6 ms 4984 KB ok, no valid answer
40 Correct 6 ms 4984 KB ok, correct split
41 Correct 6 ms 4984 KB ok, correct split
42 Correct 6 ms 4984 KB ok, correct split
43 Correct 6 ms 5112 KB ok, correct split
44 Correct 6 ms 4984 KB ok, correct split
45 Correct 6 ms 4984 KB ok, correct split
46 Correct 9 ms 5368 KB ok, correct split
47 Correct 9 ms 5368 KB ok, correct split
48 Correct 6 ms 4984 KB ok, correct split
49 Correct 9 ms 5368 KB ok, correct split
50 Correct 6 ms 4984 KB ok, correct split
51 Correct 6 ms 4984 KB ok, correct split
52 Correct 6 ms 4856 KB ok, correct split
53 Correct 6 ms 4984 KB ok, correct split
54 Correct 6 ms 4984 KB ok, correct split
55 Correct 11 ms 5112 KB ok, correct split
56 Correct 6 ms 5112 KB ok, correct split
57 Correct 7 ms 5112 KB ok, correct split
58 Correct 8 ms 5320 KB ok, correct split
59 Correct 8 ms 5372 KB ok, correct split
60 Correct 9 ms 5372 KB ok, correct split
61 Correct 8 ms 5240 KB ok, correct split
62 Correct 11 ms 5340 KB ok, correct split
63 Incorrect 8 ms 5372 KB jury found a solution, contestant did not
64 Halted 0 ms 0 KB -