#include <bits/stdc++.h>
using namespace std;
using ll = long long;
const int MAXN = 40;
ll ans[MAXN];
vector<pair<int, int>> vec;
ll is[MAXN];
int n, m;
int main(){
ios_base::sync_with_stdio(0);
cin.tie(NULL);
cout.tie(NULL);
cin >> n >> m;
int u, v;
for(int i = 1; i <= m; i++){
cin >> u >> v;
u--;
v--;
vec.push_back({u, v});
}
for(int i = 1; i < (1 << n); i++){
for(int j = 0; j < n; j++){
is[j] = 0;
if(i & (1 << j)){
is[j] = 1;
}
}
for(int j = 0; j < m; j++){
if(is[vec[j].first] == 1 && is[vec[j].second] == 0){
is[vec[j].second] = 1;
is[vec[j].first] = 0;
}
}
bool ok = true, was1 = false, pos = true;
for(int j = 0; j < n; j++){
if(is[j] == 1 && pos == false){
ok = false;
was1 = true;
}else if(is[j] == 1){
was1 = true;
}else if(is[j] == 0){
if(was1){
pos = false;
}
}
}
if(ok){
ans[__builtin_popcount(i)]++;
ans[__builtin_popcount(i)] %= 2;
}
}
for(int i = 1; i <= n; i++){
cout << ans[i] % 2 << ' ';
}
cout << '\n';
return 0;
}
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 | #include <bits/stdc++.h> using namespace std; using ll = long long; const int MAXN = 40; ll ans[MAXN]; vector<pair<int, int>> vec; ll is[MAXN]; int n, m; int main(){ ios_base::sync_with_stdio(0); cin.tie(NULL); cout.tie(NULL); cin >> n >> m; int u, v; for(int i = 1; i <= m; i++){ cin >> u >> v; u--; v--; vec.push_back({u, v}); } for(int i = 1; i < (1 << n); i++){ for(int j = 0; j < n; j++){ is[j] = 0; if(i & (1 << j)){ is[j] = 1; } } for(int j = 0; j < m; j++){ if(is[vec[j].first] == 1 && is[vec[j].second] == 0){ is[vec[j].second] = 1; is[vec[j].first] = 0; } } bool ok = true, was1 = false, pos = true; for(int j = 0; j < n; j++){ if(is[j] == 1 && pos == false){ ok = false; was1 = true; }else if(is[j] == 1){ was1 = true; }else if(is[j] == 0){ if(was1){ pos = false; } } } if(ok){ ans[__builtin_popcount(i)]++; ans[__builtin_popcount(i)] %= 2; } } for(int i = 1; i <= n; i++){ cout << ans[i] % 2 << ' '; } cout << '\n'; return 0; } |
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