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Cod sursa(job #608144)
# include <algorithm>
# include <cstdio>
# include <cstring>
# include <vector>
using namespace std;
# define verf ++poz == hg ? fread ( ch, 1, hg, stdin ), poz = 0 : 0
const char *FIN = "andrei.in", *FOU = "andrei.out";
const int MAX = 200005, hg = 1 << 13;
int N, M, poz;
vector <int> GP[MAX], GM[MAX], Q;
bool VIZ[MAX], sol[MAX];
inline int NOT (int A) {
return A > N ? A - N : A + N;
}
char ch[ hg ] ;
inline void cit ( int &x ) {
if ( ch[0] == '\0' ) fread ( ch, 1, hg, stdin ) ;
else for ( ; ch[poz] < '0' || ch[poz] > '9' ; verf ) ;
for ( x = 0 ; ch[poz] >= '0' && ch[poz] <= '9' ; x = x * 10 + ch[poz] - '0', verf ) ;
}
void dfp (int S) {
VIZ[S] = 1;
for (vector <int> :: iterator it = GP[S].begin (); it != GP[S].end (); ++it)
if (VIZ[*it] == 0)
dfp (*it);
Q.push_back (S);
}
void dfm (int S) {
VIZ[S] = sol[NOT(S)] = 1;
for (vector <int> :: iterator it = GM[S].begin (); it != GM[S].end (); ++it)
if (VIZ[*it] == 0)
dfm (*it);
}
void baga (int x, int y) {
GP[NOT (x)].push_back (y);
GP[NOT (y)].push_back (x);
GM[x].push_back (NOT (y));
GM[y].push_back (NOT (x));
}
int main (void) {
freopen (FIN, "r", stdin);
freopen (FOU, "w", stdout);
cit (N), cit (M);
for (int i = 1, x, y, z; i <= M; ++i) {
cit (x), cit (y), cit (z);
if (z == 0) baga (x, y);
else if (z == 1) baga (NOT (x), NOT (y));
else baga (NOT (x), y), baga (x, NOT (y));
}
for (int i = 1; i <= N << 1; ++i)
if (VIZ[i] == 0)
dfp (i);
memset (VIZ, 0, sizeof (VIZ)), reverse (Q.begin (), Q.end ());
for (vector <int> :: iterator it = Q.begin (); it != Q.end (); ++it)
if (VIZ[*it] == 0 && VIZ[NOT (*it)] == 0)
dfm (*it);
for (int i = 1; i <= N; ++i)
printf ("%d ", sol[i]);
}