#include<cstdio> #include<bit> #include<bits/stdc++.h> #include<vector> using namespace std; #define N 40 //int result[N]; bool result[N]; unsigned long long jedynki[N]; int main() { int n, m; vector<pair<int, int>> v; scanf("%d %d", &n, &m); jedynki[n] = 1; for (int i = n - 1; i >= 0; i--) { jedynki[i] = jedynki[i + 1] << 1; } for (int i = 0; i < m; i++) { int a, b; scanf("%d %d", &a, &b); v.push_back(make_pair(a, b)); } unsigned long long last = ((unsigned long long) 1) << n; for (unsigned long long i = 1; i < last; i++) { int b = __builtin_popcountll(i); unsigned long long j = i; for (auto p : v) { if ( (j & jedynki[p.first]) && !(j & jedynki[p.second]) ) { j = j ^ jedynki[p.first] ^ jedynki[p.second]; } } int bit1 = __builtin_ffsll(j); int bit2 = log2(j) + 1; //printf("%lld %d %d\n", j, bit1, bit2); if (bit2 - bit1 + 1 == b) { result[b] = !result[b]; //result[b]++; } } for (int i = 1; i <= n; i++) { printf("%d ", result[i] ? 1 : 0); //printf("%d ", result[i] ); } 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 | #include<cstdio> #include<bit> #include<bits/stdc++.h> #include<vector> using namespace std; #define N 40 //int result[N]; bool result[N]; unsigned long long jedynki[N]; int main() { int n, m; vector<pair<int, int>> v; scanf("%d %d", &n, &m); jedynki[n] = 1; for (int i = n - 1; i >= 0; i--) { jedynki[i] = jedynki[i + 1] << 1; } for (int i = 0; i < m; i++) { int a, b; scanf("%d %d", &a, &b); v.push_back(make_pair(a, b)); } unsigned long long last = ((unsigned long long) 1) << n; for (unsigned long long i = 1; i < last; i++) { int b = __builtin_popcountll(i); unsigned long long j = i; for (auto p : v) { if ( (j & jedynki[p.first]) && !(j & jedynki[p.second]) ) { j = j ^ jedynki[p.first] ^ jedynki[p.second]; } } int bit1 = __builtin_ffsll(j); int bit2 = log2(j) + 1; //printf("%lld %d %d\n", j, bit1, bit2); if (bit2 - bit1 + 1 == b) { result[b] = !result[b]; //result[b]++; } } for (int i = 1; i <= n; i++) { printf("%d ", result[i] ? 1 : 0); //printf("%d ", result[i] ); } return 0; } |