#include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include using namespace std; #define int long long #define ii pair #define app push_back #define all(a) a.begin(), a.end() #define bp __builtin_popcountll #define ll long long #define mp make_pair #define x first #define y second #define Time (double)clock()/CLOCKS_PER_SEC #define debug(x) std::cerr << #x << ": " << x << '\n'; #define FORI(i,a,b) for (int i = (a); i < (b); ++i) #define FOR(i,a) FORI(i,0,a) #define ROFI(i,a,b) for (int i = (b)-1; i >= (a); --i) #define ROF(i,a) ROFI(i,0,a) #define rep(a) FOR(_,a) #define each(a,x) for (auto& a: x) #define FORN(i, n) FORI(i, 1, n + 1) using vi = vector; template std::istream& operator >>(std::istream& input, std::pair & data) { input >> data.x >> data.y; return input; } template std::istream& operator >>(std::istream& input, std::vector& data) { for (T& x : data) input >> x; return input; } template std::ostream& operator <<(std::ostream& output, const pair & data) { output << "(" << data.x << "," << data.y << ")"; return output; } template std::ostream& operator <<(std::ostream& output, const std::vector& data) { for (const T& x : data) output << x << " "; return output; } std::ostream& operator <<(std::ostream& output, const __int128 &x) { __int128 n = x; if (n == 0) { output << "0"; return output; } if (n < 0) { n = -n; output << "-"; } string s; while (n) { s += '0' + (n%10); n /= 10; } reverse(all(s)); cout << s; return output; } ll div_up(ll a, ll b) { return a/b+((a^b)>0&&a%b); } // divide a by b rounded up ll div_down(ll a, ll b) { return a/b-((a^b)<0&&a%b); } // divide a by b rounded down ll math_mod(ll a, ll b) { return a - b * div_down(a, b); } #define tcT template using V = vector; tcT> bool ckmin(T& a, const T& b) { return b < a ? a = b, 1 : 0; } // set a = min(a,b) tcT> bool ckmax(T& a, const T& b) { return a < b ? a = b, 1 : 0; } ll gcd(ll a, ll b) { while (b) { tie(a, b) = mp(b, a % b); } return a; } int Bit(int mask, int bit) { return (mask >> bit) & 1; } int a[10][10]; V want; int ans = 0; int n; void gen(int ci, int cj) { for (int k = 2; k <= n; ++k) { FOR (i, n - k + 1) { FOR (j, n - k + 1) { int sum = 0; bool in = 1; FOR (x, k) { FOR (y, k) { in &= mp(i + x, j + y) < mp(ci, cj); sum += a[i + x][j + y]; } } if (in && (sum&1)!=(k&1)) { return; } } } } if (ci == n) { bool ok = 1; each (e, want) { ok &= a[e[0]][e[1]] == e[2]; } ans += ok; return; } a[ci][cj] = 0; if (cj == n - 1) { gen(ci + 1, 0); } else { gen(ci, cj + 1); } a[ci][cj] = 1; if (cj == n - 1) { gen(ci + 1, 0); } else { gen(ci, cj + 1); } } signed main() { #ifdef LOCAL #else #define endl '\n' ios_base::sync_with_stdio(0); cin.tie(0); #endif int q; cin >> n >> q; rep (q) { int x, y, w; cin >> x >> y >> w; x--; y--; want.app({x, y, w}); } if (n <= 6) { gen(0, 0); cout << ans << endl; } else { each (e, want) { if (e[2] == 0) { cout << 0 << endl; exit(0); } } cout << 1 << endl; } /* FOR (mask, 1ll << (n * n)) { FOR (i, n) { FOR (j, n) { int num = i * n + j; a[i][j] = Bit(mask, num); } } bool ok = 1; for (int k = 2; k <= n; ++k) { FOR (i, n - k + 1) { FOR (j, n - k + 1) { int sum = 0; FOR (x, k) { FOR (y, k) { sum += a[i + x][j + y]; } } if ((sum&1)!=(k&1)) { ok = 0; } } } } if (ok) { FOR (i, n) { FOR (j, n) { cout << a[i][j] << ' '; } cout << endl; } cout << endl; } } */ }