#include "train.h"
#include <bits/stdc++.h>
using namespace std;
#define N ((int)11*1000)
int n,m,cnt;
bool self[N],ans[N],mark[N];
vector <int> e[N],er[N],tpl;
void dfs(int x,vector <int> &r)
{
mark[x]=1;
for(auto u:e[x])
if(!mark[u] && !r[u])
dfs(u);
tpl.push_back(x);
}
void dfs2(int x,vector <int> &r)
{
mark[x]=1;cnt++;
for(auto u:er[x])
if(!mark[u])
dfs2(u,r);
}
void dfs_ans(int x)
{
ans[x]=1;
for(auto u:er[x])
if(!ans[u])
dfs_ans(u);
}
vector<int> who_wins(vector<int> a,vector<int> r,vector<int> u,vector<int> v)
{
int n=a.size(),m=u.size();
for(int i=0;i<m;i++)
{
if(u[i]==v[i])self[u[i]]=1;
else e[u[i]].push_back(v[i]),er[v[i]].push_back(u[i]);
}
for(int i=0;i<n;i++)
if(!mark[i] && !r[i])
dfs(i,r);
reverse(tpl.begin(),tpl.end());
memset(mark,0,sizeof mark);
for(auto u:tpl)
if(!mark[u])
{
cnt=0;
dfs2(u,r);
if(cnt>1 || self[u])dfs_ans(u);
}
vector <int> res;
for(int i=0;i<n;i++)res.push_back(1-ans[i]);
return res;
}
Compilation message
train.cpp: In function 'void dfs(int, std::vector<int>&)':
train.cpp:15:9: error: too few arguments to function 'void dfs(int, std::vector<int>&)'
dfs(u);
^
train.cpp:10:6: note: declared here
void dfs(int x,vector <int> &r)
^~~
