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>
#define DIM 10010
#define INF 2000000000
using namespace std;
vector <pair<int,int> > L[DIM];
deque <int> c;
int viz[DIM],sp[DIM],w[DIM];
int n,m,i,j,x,y,k,val;
void add_edge (int x, int y, int cost){
L[x].push_back(make_pair(y,cost));
//cout<<x<<" "<<y<<" "<<cost<<"\n";
}
int main (){
//ifstream cin ("date.in");
//ofstream cout ("date.out");
cin>>n>>m;
for (i=1;i<=m;i++){
cin>>x>>y>>k>>val;
x++, y++;
if (val)
add_edge(x-1,y,k-1);
else add_edge(y,x-1,-k);
}
for (i=1;i<=n;i++){
add_edge(i-1,i,1);
add_edge(i,i-1,0);
sp[i] = INF;
}
c.push_back(0);
viz[0] = 1;
sp[0] = 1;
while (!c.empty()){
int nod = c.front();
c.pop_front();
viz[nod] = 0;
for (auto it : L[nod]){
int vecin = it.first, cost = it.second;
if (sp[nod] + cost < sp[vecin]){
sp[vecin] = sp[nod] + cost;
if (!viz[vecin]){
viz[vecin] = 1;
c.push_back(vecin);
w[vecin]++;
if (w[vecin] > n){
cout<<"-1";
return 0;
}}}}}
for (i=1;i<=n;i++){
if (sp[i] == sp[i-1])
cout<<"1 ";
else cout<<"0 ";
}
return 0;
}
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