#include<bits/stdc++.h> using namespace std; typedef long long ll; #define ssize(a) ((int)(a.size())) #pragma GCC optimize ("O3") int main() { ios_base::sync_with_stdio(0); cin.tie(0); int n, m; cin >> n >> m; vector<pair<int, int>>roz(m); vector<ll>pot(n); pot[0] = 1; for(int i = 1; i < n; ++i) pot[i] = pot[i - 1] << 1; for(int i = 0; i < m; ++i) { cin >> roz[i].first >> roz[i].second; --roz[i].first; --roz[i].second; } reverse(roz.begin(), roz.end()); for(int dl = 1; dl <= n; ++dl) { unordered_map<ll, char>ile[2]; vector<ll>stn[2]; for(int pocz = 0; pocz + dl - 1 < n; ++pocz) { ll msk = 0; for(int j = 0; j < dl; ++j) msk += pot[pocz + j]; ile[0][msk] = 1; stn[0].push_back(msk); } for(int i = 0; i < m; ++i) { ile[!(i & 1)].clear(); stn[!(i & 1)].clear(); for(auto j:stn[i & 1]) { if(ile[i & 1][j] != 1) continue; bool k1 = (j & pot[roz[i].first]); bool k2 = (j & pot[roz[i].second]); if(k1 == 0 && k2) { ll pj = j; if(ile[!(i & 1)][pj] == 0) { stn[!(i & 1)].push_back(pj); ile[!(i & 1)][pj] = 1; } else if(ile[!(i & 1)][pj] == 1) ile[!(i & 1)][pj] = 2; pj = j - pot[roz[i].second] + pot[roz[i].first]; if(ile[!(i & 1)][pj] == 0) { stn[!(i & 1)].push_back(pj); ile[!(i & 1)][pj] = 1; } else if(ile[!(i & 1)][pj] == 1) ile[!(i & 1)][pj] = 2; } else if(k1 == k2) { if(ile[!(i & 1)][j] == 0) { stn[!(i & 1)].push_back(j); ile[!(i & 1)][j] = 1; } else if(ile[!(i & 1)][j] == 1) ile[!(i & 1)][j] = 2; } } } int odp = 0; for(ll i: stn[m & 1]) if(ile[m & 1][i] == 1) odp = (odp + 1) & 1; cout << odp << ' '; } 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 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 | #include<bits/stdc++.h> using namespace std; typedef long long ll; #define ssize(a) ((int)(a.size())) #pragma GCC optimize ("O3") int main() { ios_base::sync_with_stdio(0); cin.tie(0); int n, m; cin >> n >> m; vector<pair<int, int>>roz(m); vector<ll>pot(n); pot[0] = 1; for(int i = 1; i < n; ++i) pot[i] = pot[i - 1] << 1; for(int i = 0; i < m; ++i) { cin >> roz[i].first >> roz[i].second; --roz[i].first; --roz[i].second; } reverse(roz.begin(), roz.end()); for(int dl = 1; dl <= n; ++dl) { unordered_map<ll, char>ile[2]; vector<ll>stn[2]; for(int pocz = 0; pocz + dl - 1 < n; ++pocz) { ll msk = 0; for(int j = 0; j < dl; ++j) msk += pot[pocz + j]; ile[0][msk] = 1; stn[0].push_back(msk); } for(int i = 0; i < m; ++i) { ile[!(i & 1)].clear(); stn[!(i & 1)].clear(); for(auto j:stn[i & 1]) { if(ile[i & 1][j] != 1) continue; bool k1 = (j & pot[roz[i].first]); bool k2 = (j & pot[roz[i].second]); if(k1 == 0 && k2) { ll pj = j; if(ile[!(i & 1)][pj] == 0) { stn[!(i & 1)].push_back(pj); ile[!(i & 1)][pj] = 1; } else if(ile[!(i & 1)][pj] == 1) ile[!(i & 1)][pj] = 2; pj = j - pot[roz[i].second] + pot[roz[i].first]; if(ile[!(i & 1)][pj] == 0) { stn[!(i & 1)].push_back(pj); ile[!(i & 1)][pj] = 1; } else if(ile[!(i & 1)][pj] == 1) ile[!(i & 1)][pj] = 2; } else if(k1 == k2) { if(ile[!(i & 1)][j] == 0) { stn[!(i & 1)].push_back(j); ile[!(i & 1)][j] = 1; } else if(ile[!(i & 1)][j] == 1) ile[!(i & 1)][j] = 2; } } } int odp = 0; for(ll i: stn[m & 1]) if(ile[m & 1][i] == 1) odp = (odp + 1) & 1; cout << odp << ' '; } return 0; } |