이 제출은 이전 버전의 oj.uz에서 채점하였습니다. 현재는 제출 당시와는 다른 서버에서 채점을 하기 때문에, 다시 제출하면 결과가 달라질 수도 있습니다.
#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
typedef pair<ll,ll> P;
typedef tuple<ll,ll,ll> PP;
typedef vector<ll> vi;
typedef vector<vi> vvi;
typedef vector<P> vp;
typedef vector<bool> vb;
typedef vector<vb> vvb;
#define rep(i,n) for(ll i=0;i<(ll)(n);i++)
#define REP(i,k,n) for(ll i=(ll)(k);i<(ll)(n);i++)
#define pb emplace_back
#define fi first
#define se second
template<class T> void out(T a){cout<<a<<endl;}
vvb ans;
void init(int k,vector<int> v){
ll n=v.size();
ans=vvb(n,vb(n,false));
vvi g(n);
vb done(n,false);
vi cnt(n);
set<ll> S;
auto dif=[&](ll x){
if(x>=0)return x;
return x+n;
};
auto add=[&](ll i){
auto itr=S.insert(i).fi;
if(S.size()==1)return;
if(itr==S.begin())itr=S.end();
itr--;
if(dif(i-(*itr))<k){
g[i].pb(*itr);cnt[*itr]++;
}
itr++;
if(itr==S.end())itr=S.begin();
itr++;
if(itr==S.end())itr=S.begin();
if(dif((*itr)-i)<k){
g[*itr].pb(i);cnt[i]++;
}
};
rep(i,n)if(v[i]==0){
add(i);
}
rep(i,n){
rep(j,n)if(!done[j]&&v[j]==0&&cnt[j]==0){
// out(j);
S.erase(j);
done[j]=true;
for(ll x:g[j])cnt[x]--;
rep(t,k-1){
ll nt=dif(j-t-1);
if(done[nt])continue;
v[nt]--;
g[j].pb(nt);
if(v[nt]==0)add(nt);
}
break;
}
}
rep(i,n){
queue<ll> que;
que.push(i);ans[i][i]=true;
while(!que.empty()){
ll t=que.front();que.pop();
for(ll x:g[t])if(!ans[i][x]){
ans[i][x]=true;que.push(x);
}
}
}
// rep(i,n)for(ll j:g[i])cout<<i<<' '<<j<<endl;
}
int compare_plants(int x,int y){
if(ans[x][y])return 1;
if(ans[y][x])return -1;
return 0;
}
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