#include <cstdio>
#include <cstdlib>
#include <cstdint>
#include <vector>
#include <utility>
#include <numeric>
std::vector<bool> solve1(std::vector<std::pair<int, int>> commands, const uint64_t n) {
std::vector<bool> ret(n, false);
for (uint64_t starts = 1; starts < 1ULL << n; starts++) {
uint64_t s = starts;
for (const auto [a, b] : commands) {
const uint64_t mask = (1ULL << a) | (1ULL << b);
if ((s & mask) == (1ULL << a)) {
s ^= mask;
}
}
const int k = std::popcount(s);
const int i = std::countr_zero(s);
if (s == ((1ULL << k) - 1) << i) {
ret[k - 1] = !ret[k - 1];
}
}
return ret;
}
int main() {
int n, m;
scanf("%d %d", &n, &m);
std::vector<std::pair<int, int>> commands;
commands.reserve(m);
for (int i = 0; i < m; i++) {
int a, b;
scanf("%d %d", &a, &b);
commands.push_back({a - 1, b - 1});
}
auto result = solve1(std::move(commands), n);
bool first = true;
for (bool b : result) {
if (first) {
first = false;
} else {
putchar(' ');
}
putchar(b ? '1' : '0');
}
putchar('\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 | #include <cstdio> #include <cstdlib> #include <cstdint> #include <vector> #include <utility> #include <numeric> std::vector<bool> solve1(std::vector<std::pair<int, int>> commands, const uint64_t n) { std::vector<bool> ret(n, false); for (uint64_t starts = 1; starts < 1ULL << n; starts++) { uint64_t s = starts; for (const auto [a, b] : commands) { const uint64_t mask = (1ULL << a) | (1ULL << b); if ((s & mask) == (1ULL << a)) { s ^= mask; } } const int k = std::popcount(s); const int i = std::countr_zero(s); if (s == ((1ULL << k) - 1) << i) { ret[k - 1] = !ret[k - 1]; } } return ret; } int main() { int n, m; scanf("%d %d", &n, &m); std::vector<std::pair<int, int>> commands; commands.reserve(m); for (int i = 0; i < m; i++) { int a, b; scanf("%d %d", &a, &b); commands.push_back({a - 1, b - 1}); } auto result = solve1(std::move(commands), n); bool first = true; for (bool b : result) { if (first) { first = false; } else { putchar(' '); } putchar(b ? '1' : '0'); } putchar('\n'); return 0; } |
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