Submission #826260

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
826260	2023-08-15T11:39:11 Z	vnm06	Toy Train (IOI17_train)	C++14	0 / 100	568 ms	1536 KB

train

#include<bits/stdc++.h>
#include "train.h"

using namespace std;

int n, m;
bool isC[5005], used[5005];
bool badv[5005];
vector<int> gr[5005], rev_gr[5005];

void dfs(int v)
{
    int brs=gr[v].size();
    for(int i=0; i<brs; i++)
    {
        int nv=gr[v][i];
        if(used[nv]) continue;
        used[nv]=1;
        dfs(nv);
    }
}

vector<int> ans;

void dfs2(int v)
{
    ans[v-1]=1;
    int brs=rev_gr[v].size();
    for(int i=0; i<brs; i++)
    {
        int nv=rev_gr[v][i];
        if(ans[nv-1]) continue;
        dfs2(nv);
    }
}

std::vector<int> who_wins(std::vector<int> a, std::vector<int> r, std::vector<int> u, std::vector<int> v)
{
    if(r[0]==0)
    {
    n=a.size();
    ans.resize(n);
    for(int i=0; i<n; i++) ans[i]=0;
    m=u.size();
    for(int i=0; i<n; i++)
    {
        if(r[i]) {isC[i+1]=1; badv[i+1]=1;}
    }
    for(int i=0; i<m; i++)
    {
        gr[u[i]+1].push_back(v[i]+1);
        rev_gr[v[i]+1].push_back(u[i]+1);
    }
    for(int t=1; t<=n; t++)
    {
    for(int i=1; i<=n; i++)
    {
        if(!badv[i])
        {
            bool fl0=0;
            int brs=gr[i].size();
            for(int j=0; j<brs; j++) if(!badv[gr[i][j]]) fl0=1;
            if(!fl0) badv[i]=1;
        }
    }
    }
    for(int k=1; k<=n; k++)
    {
        if(!badv[k]) dfs2(k);
    }
    for(int k=0; k<n; k++) ans[k]=1-ans[k];
    }
    else
    {

    n=a.size();
    ans.resize(n);
    for(int i=0; i<n; i++) ans[i]=0;
    m=u.size();
    for(int i=0; i<n; i++) if(r[i]) isC[i+1]=1;
    for(int i=0; i<m; i++)
    {
        gr[u[i]+1].push_back(v[i]+1);
        rev_gr[v[i]+1].push_back(u[i]+1);
    }
    for(int i=1; i<=n; i++)
    {
        if(isC[i])
        {
            dfs(i);
            if(!used[i]) isC[i]=0;
            memset(used, 0, sizeof(used));
        }
    }
    for(int i=1; i<=n; i++)
    {
        if(isC[i]) dfs2(i);
    }
    }
    return ans;
}

Subtask #1
0 / 5.0

#	Verdict	Execution time	Memory	Grader output
1	Incorrect	71 ms	1280 KB	3rd lines differ - on the 1st token, expected: '0', found: '1'
2	Halted	0 ms	0 KB	-

Subtask #2
0 / 10.0

#	Verdict	Execution time	Memory	Grader output
1	Incorrect	0 ms	468 KB	3rd lines differ - on the 8th token, expected: '0', found: '1'
2	Halted	0 ms	0 KB	-

Subtask #3
0 / 11.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	8 ms	1492 KB	Output is correct
2	Correct	17 ms	1512 KB	Output is correct
3	Correct	37 ms	1536 KB	Output is correct
4	Incorrect	177 ms	1384 KB	3rd lines differ - on the 1st token, expected: '1', found: '0'
5	Halted	0 ms	0 KB	-