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Cod sursa(job #600025)
#include <stdio.h>
#include <string.h>
#include <vector>
using namespace std;
#define MAX_N 200010
int n, m, k;
int use[MAX_N], Q[MAX_N], comp[MAX_N], val[MAX_N];
vector <int> G[MAX_N], Gt[MAX_N], ctc[MAX_N];
inline int neg(int x) {
if (x <= n)
return x + n;
return x - n;
}
void dfs(int nod) {
use[nod] = 1;
for (vector <int>::iterator it = G[nod].begin(); it != G[nod].end(); ++it)
if (use[*it] == 0)
dfs(*it);
Q[++Q[0]] = nod;
}
void dfs2(int nod) {
use[nod] = 1;
ctc[k].push_back(nod);
comp[nod] = k;
for (vector <int>::iterator it = Gt[nod].begin(); it != Gt[nod].end(); ++it)
if (use[*it] == 0)
dfs2(*it);
}
void solve() {
for (int i = 1; i <= 2 * n; i++)
for (vector <int>::iterator it = G[i].begin(); it != G[i].end(); ++it)
Gt[*it].push_back(i); //graful transpus
for (int i = 1; i <= 2 * n; i++)
if (use[i] == 0)
dfs(i);
memset(use, 0, sizeof(use));
for (int i = 1; i <= 2 * n; i++)
if (use[Q[i]] == 0) {
++k; //am gasit o noua componenta tare conexa
dfs2(Q[i]);
}
for (int i = 1; i <= k; i++)
val[i] = -1;
for (int i = 1; i <= k; i++)
if (val[i] == -1) {
val[i] = 0;
for (vector <int>::iterator it = G[i].begin(); it != G[i].end(); ++it)
val[comp[neg(*it)]] = 1;
}
for (int i = 1; i <= n; i++)
printf("%d ", val[comp[i]]);
printf("\n");
}
int main() {
freopen("andrei.in", "r", stdin);
freopen("andrei.out", "w", stdout);
scanf("%d %d", &n, &m);
for (int i = 1; i <= m; i++) {
int x, y, tip;
scanf("%d %d %d", &x, &y, &tip);
if (tip == 0) {
G[x].push_back(neg(y));
G[y].push_back(neg(x));
}
if (tip == 1) {
G[neg(x)].push_back(y);
G[neg(y)].push_back(x);
}
if (tip == 2) {
G[x].push_back(y);
G[y].push_back(x);
}
}
solve();
return 0;
}