oj.uz

Submission #143909

# Submission time Handle Problem Language Result Execution time Memory
143909 2019-08-15T12:42:16 Z Bodo171 Split the Attractions (IOI19_split) C++14
40 / 100
 231 ms 19880 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 4984 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 4984 KB ok, correct split
7 Correct 167 ms 19580 KB ok, correct split
8 Correct 147 ms 18296 KB ok, correct split
9 Correct 174 ms 17912 KB ok, correct split
10 Correct 157 ms 19880 KB ok, correct split
11 Correct 148 ms 19704 KB ok, correct split

Subtask #2
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 6 ms 4984 KB ok, correct split
2 Correct 6 ms 5040 KB ok, correct split
3 Correct 6 ms 4984 KB ok, correct split
4 Correct 162 ms 18448 KB ok, correct split
5 Correct 121 ms 15352 KB ok, correct split
6 Correct 149 ms 19876 KB ok, correct split
7 Correct 143 ms 18168 KB ok, correct split
8 Correct 231 ms 16888 KB ok, correct split
9 Correct 135 ms 15224 KB ok, correct split
10 Correct 93 ms 15992 KB ok, correct split
11 Correct 77 ms 15956 KB ok, correct split
12 Correct 85 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 125 ms 15480 KB ok, correct split
3 Correct 53 ms 9212 KB ok, correct split
4 Correct 6 ms 4984 KB ok, correct split
5 Correct 134 ms 16608 KB ok, correct split
6 Correct 144 ms 16504 KB ok, correct split
7 Correct 136 ms 16376 KB ok, correct split
8 Correct 137 ms 17144 KB ok, correct split
9 Correct 156 ms 16348 KB ok, correct split
10 Correct 39 ms 8272 KB ok, no valid answer
11 Correct 56 ms 9848 KB ok, no valid answer
12 Correct 98 ms 14964 KB ok, no valid answer
13 Correct 165 ms 14632 KB ok, no valid answer
14 Correct 97 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 4988 KB ok, correct split
6 Correct 6 ms 4984 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 5116 KB ok, correct split
12 Correct 9 ms 5368 KB ok, correct split
13 Correct 6 ms 4984 KB ok, correct split
14 Correct 7 ms 4984 KB ok, correct split
15 Correct 7 ms 4984 KB ok, correct split
16 Correct 6 ms 4984 KB ok, correct split
17 Correct 6 ms 4984 KB ok, correct split
18 Correct 6 ms 4988 KB ok, correct split
19 Correct 7 ms 5112 KB ok, correct split
20 Correct 8 ms 5116 KB ok, correct split
21 Correct 8 ms 5368 KB ok, correct split
22 Correct 8 ms 5244 KB ok, correct split
23 Correct 8 ms 5368 KB ok, correct split
24 Correct 8 ms 5368 KB ok, correct split
25 Correct 8 ms 5240 KB ok, correct split
26 Incorrect 8 ms 5368 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 4984 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 4984 KB ok, correct split
7 Correct 167 ms 19580 KB ok, correct split
8 Correct 147 ms 18296 KB ok, correct split
9 Correct 174 ms 17912 KB ok, correct split
10 Correct 157 ms 19880 KB ok, correct split
11 Correct 148 ms 19704 KB ok, correct split
12 Correct 6 ms 4984 KB ok, correct split
13 Correct 6 ms 5040 KB ok, correct split
14 Correct 6 ms 4984 KB ok, correct split
15 Correct 162 ms 18448 KB ok, correct split
16 Correct 121 ms 15352 KB ok, correct split
17 Correct 149 ms 19876 KB ok, correct split
18 Correct 143 ms 18168 KB ok, correct split
19 Correct 231 ms 16888 KB ok, correct split
20 Correct 135 ms 15224 KB ok, correct split
21 Correct 93 ms 15992 KB ok, correct split
22 Correct 77 ms 15956 KB ok, correct split
23 Correct 85 ms 15984 KB ok, correct split
24 Correct 6 ms 4984 KB ok, correct split
25 Correct 125 ms 15480 KB ok, correct split
26 Correct 53 ms 9212 KB ok, correct split
27 Correct 6 ms 4984 KB ok, correct split
28 Correct 134 ms 16608 KB ok, correct split
29 Correct 144 ms 16504 KB ok, correct split
30 Correct 136 ms 16376 KB ok, correct split
31 Correct 137 ms 17144 KB ok, correct split
32 Correct 156 ms 16348 KB ok, correct split
33 Correct 39 ms 8272 KB ok, no valid answer
34 Correct 56 ms 9848 KB ok, no valid answer
35 Correct 98 ms 14964 KB ok, no valid answer
36 Correct 165 ms 14632 KB ok, no valid answer
37 Correct 97 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 4988 KB ok, correct split
43 Correct 6 ms 4984 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 5116 KB ok, correct split
49 Correct 9 ms 5368 KB ok, correct split
50 Correct 6 ms 4984 KB ok, correct split
51 Correct 7 ms 4984 KB ok, correct split
52 Correct 7 ms 4984 KB ok, correct split
53 Correct 6 ms 4984 KB ok, correct split
54 Correct 6 ms 4984 KB ok, correct split
55 Correct 6 ms 4988 KB ok, correct split
56 Correct 7 ms 5112 KB ok, correct split
57 Correct 8 ms 5116 KB ok, correct split
58 Correct 8 ms 5368 KB ok, correct split
59 Correct 8 ms 5244 KB ok, correct split
60 Correct 8 ms 5368 KB ok, correct split
61 Correct 8 ms 5368 KB ok, correct split
62 Correct 8 ms 5240 KB ok, correct split
63 Incorrect 8 ms 5368 KB jury found a solution, contestant did not
64 Halted 0 ms 0 KB -