#include <bits/stdc++.h> using namespace std; string s; pair <int, int> g[1005]; int solve(string &cur, int idx) { if (idx == 0) return 1; int i = g[idx].first, j = g[idx].second; if (cur[i] == cur[j]) { while (idx > 0 && cur[i] == cur[j]) { idx--; i = g[idx].first, j = g[idx].second; } return solve(cur, idx); } else if (cur[i] == '1' && cur[j] == '0') return 0; else { int left = solve(cur, idx - 1); swap(cur[i], cur[j]); int right = solve(cur, idx - 1); swap(cur[i], cur[j]); return (left ^ right); } } int main() { ios_base::sync_with_stdio(0); cin.tie(0); cout.tie(0); int n, m; cin >> n >> m; for (int i = 1; i <= m; i++) { cin >> g[i].first >> g[i].second; } for (int i = 0; i <= n; i++) { s.push_back('0'); } cout << n % 2 << ' '; for (int i = 2; i < n; i++) { for (int j = 1; j <= n; j++) { if (j <= i) s[j] = '1'; else s[j] = '0'; } int ans = solve(s, m); for (int j = i + 1; j <= n; j++) { s[j] = '1'; s[j - i] = '0'; ans ^= solve(s, m); } cout << ans << ' '; } cout << 1 << '\n'; }
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 | #include <bits/stdc++.h> using namespace std; string s; pair <int, int> g[1005]; int solve(string &cur, int idx) { if (idx == 0) return 1; int i = g[idx].first, j = g[idx].second; if (cur[i] == cur[j]) { while (idx > 0 && cur[i] == cur[j]) { idx--; i = g[idx].first, j = g[idx].second; } return solve(cur, idx); } else if (cur[i] == '1' && cur[j] == '0') return 0; else { int left = solve(cur, idx - 1); swap(cur[i], cur[j]); int right = solve(cur, idx - 1); swap(cur[i], cur[j]); return (left ^ right); } } int main() { ios_base::sync_with_stdio(0); cin.tie(0); cout.tie(0); int n, m; cin >> n >> m; for (int i = 1; i <= m; i++) { cin >> g[i].first >> g[i].second; } for (int i = 0; i <= n; i++) { s.push_back('0'); } cout << n % 2 << ' '; for (int i = 2; i < n; i++) { for (int j = 1; j <= n; j++) { if (j <= i) s[j] = '1'; else s[j] = '0'; } int ans = solve(s, m); for (int j = i + 1; j <= n; j++) { s[j] = '1'; s[j - i] = '0'; ans ^= solve(s, m); } cout << ans << ' '; } cout << 1 << '\n'; } |