#include <bits/stdc++.h> using namespace std; #define sim template < class c #define ris return * this #define dor > debug & operator << #define eni(x) sim > typename \ enable_if<sizeof dud<c>(0) x 1, debug&>::type operator<<(c i) { sim > struct rge { c b, e; }; sim > rge<c> range(c i, c j) { return {i, j}; } sim > auto dud(c* x) -> decltype(cerr << *x, 0); sim > char dud(...); struct debug { #ifdef LOCAL ~debug() { cerr << endl; } eni(!=) cerr << boolalpha << i; ris; } eni(==) ris << range(begin(i), end(i)); } sim, class b dor(pair < b, c > d) { ris << "(" << d.first << ", " << d.second << ")"; } sim dor(rge<c> d) { *this << "["; for (c it = d.b; it != d.e; ++it) *this << ", " + 2 * (it == d.b) << *it; ris << "]"; } #else sim dor(const c&) { ris; } #endif }; #define imie(x...) " [" #x ": " << (x) << "] " #include <ext/pb_ds/assoc_container.hpp> #include <ext/pb_ds/tree_policy.hpp> template <typename A, typename B> using unordered_map2 = __gnu_pbds::gp_hash_table<A, B>; using namespace __gnu_pbds; template <typename T> using ordered_set = __gnu_pbds::tree<T, __gnu_pbds::null_type, less<T>, __gnu_pbds::rb_tree_tag, __gnu_pbds::tree_order_statistics_node_update>; // ordered_set<int> s; s.insert(1); s.insert(2); // s.order_of_key(1); // Out: 0. // *s.find_by_order(1); // Out: 2. using ld = long double; using ll = long long; constexpr int mod = 1000 * 1000 * 1000 + 7; constexpr int odw2 = (mod + 1) / 2; void OdejmijOd(int& a, int b) { a -= b; if (a < 0) a += mod; } int Odejmij(int a, int b) { OdejmijOd(a, b); return a; } void DodajDo(int& a, int b) { a += b; if (a >= mod) a -= mod; } int Dodaj(int a, int b) { DodajDo(a, b); return a; } int Mnoz(int a, int b) { return (ll) a * b % mod; } void MnozDo(int& a, int b) { a = Mnoz(a, b); } int Pot(int a, ll b) { int res = 1; while (b) { if (b % 2 == 1) MnozDo(res, a); a = Mnoz(a, a); b /= 2; } return res; } int Odw(int a) { return Pot(a, mod - 2); } void PodzielDo(int& a, int b) { MnozDo(a, Odw(b)); } int Podziel(int a, int b) { return Mnoz(a, Odw(b)); } int Moduluj(ll x) { x %= mod; if (x < 0) x += mod; return x; } template <typename T> T Maxi(T& a, T b) { return a = max(a, b); } template <typename T> T Mini(T& a, T b) { return a = min(a, b); } char ZnakZnaku(char c) { if (c == 'C') { return 1; } if (c == 'N') { return -1; } assert(false); } vector<int> OcenStosik(string s) { vector<int> ocena; assert(!s.empty()); reverse(s.begin(), s.end()); int jedynki = 0; while ((int) s.size() >= 2 and s.back() == s[(int) s.size() - 2]) { jedynki += ZnakZnaku(s.back()); s.pop_back(); } jedynki += ZnakZnaku(s.back()); s.pop_back(); ocena.push_back(jedynki); while (!s.empty()) { ocena.push_back(ZnakZnaku(s.back())); s.pop_back(); } return ocena; } int C[33][33]; ll dp_[2][33][24 * 32 * 2 + 1][1 * 2 + 1][32 * 2 + 1]; #define dp(pm, g, j, r, b) (dp_[(pm)][(g)][(j) + 24 * 32][(b) + 1][(r) + 32]) int main() { ios_base::sync_with_stdio(false); cin.tie(nullptr); cerr << sizeof(dp_) << endl; int n, m, k; cin >> n >> m >> k; for (int i = 0; i <= n; i++) { C[i][0] = 1; for (int j = 1; j < i; j++) { C[i][j] = Dodaj(C[i - 1][j - 1], C[i - 1][j]); } C[i][i] = 1; } vector<int> input(m + 1); for (int i = 0; i < k; i++) { string s; cin >> s; const vector<int> ocena = OcenStosik(s); assert(input.size() >= ocena.size()); for (int j = 0; j < (int) ocena.size(); j++) { input[j] += ocena[j]; } } for (int i = (int) input.size() - 1; i >= 1; i--) { input[i - 1] += input[i] / 2; input[i] %= 2; } debug() << imie(input); const int D = n - k; dp(0, 0, 0, 0, 0) = 1; for (int pm = 0; pm < m - 1; pm++) { const int PM = (pm % 2); const int PM1 = (pm + 1) % 2; if (PM1) { memset((void*) dp_ + sizeof(dp_) / 2, 0, sizeof(dp_) / 2); } else { memset(dp_, 0, sizeof(dp_) / 2); } const int input_bit = input[m - pm]; cerr << "pm = " << pm << " / " << (m - 1) << endl; for (int g = 0; g <= D; g++) { const int ogr_j = g * m; for (int j = -ogr_j; j <= ogr_j; j++) { int ogr_r = g; if (((ogr_r ^ g ^ input_bit) & 1) == 1) { ogr_r--; if (ogr_r < 0) continue; } for (int r = -ogr_r; r <= ogr_r; r += 2) { const int presum = (r - g + input_bit) / 2; for (int b = -1; b <= 1; b++) { const int value1 = dp(PM, g, j, r, b) % mod; if (value1) { for (int h = 0; g + h <= D; h++) { const int value2 = Mnoz(value1, C[g + h][h]); const int sum_b = h + b; const int new_b = sum_b % 2; const int prej = j - (pm + 1) * h + sum_b / 2; for (int dh = 0; dh <= h; dh++) { const int value3 = Mnoz(value2, C[h][dh]); const int new_j = prej + (pm * 2 + 1) * dh; ll* ptr = &dp(PM1, g + h, new_j, presum, new_b); constexpr ll modmod = 4 * (ll) mod * mod; for (int d = 0; d <= g; d++) { //DodajDo(ptr[d], Mnoz(value3, C[g][d])); ptr[d] += (ll) value3 * C[g][d]; if (ptr[d] >= modmod) { ptr[d] -= modmod; } } } } } } } } } } const int PM = (m - 1) % 2; for (int dlugosc = 0; dlugosc <= D; dlugosc++) { int wynik = 0; const int input_bit_0 = input[0]; const int input_bit_1 = input[1]; for (int same = 0; same <= dlugosc; same++) { for (int dod = 0; dod <= same; dod++) { const int uj = same - dod; const int sposoby = Mnoz(C[same][dod], C[dlugosc][same]); const int ogr_r = D; for (int r = -ogr_r; r <= ogr_r; r++) { for (int b = -1; b <= 1; b++) { const int sum_1 = r + b + input_bit_1; if (sum_1 % 2 == 0) { const int ogr_j = D * m; const int j = -((dod - uj) * m + sum_1 / 2 + input_bit_0); if (-ogr_j <= j and j <= ogr_j) { const int value = Moduluj(dp(PM, dlugosc - same, j, r, b)); DodajDo(wynik, Mnoz(value, sposoby)); } } } } } } if (dlugosc) cout << " "; cout << wynik; } cout << endl; 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 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 | #include <bits/stdc++.h> using namespace std; #define sim template < class c #define ris return * this #define dor > debug & operator << #define eni(x) sim > typename \ enable_if<sizeof dud<c>(0) x 1, debug&>::type operator<<(c i) { sim > struct rge { c b, e; }; sim > rge<c> range(c i, c j) { return {i, j}; } sim > auto dud(c* x) -> decltype(cerr << *x, 0); sim > char dud(...); struct debug { #ifdef LOCAL ~debug() { cerr << endl; } eni(!=) cerr << boolalpha << i; ris; } eni(==) ris << range(begin(i), end(i)); } sim, class b dor(pair < b, c > d) { ris << "(" << d.first << ", " << d.second << ")"; } sim dor(rge<c> d) { *this << "["; for (c it = d.b; it != d.e; ++it) *this << ", " + 2 * (it == d.b) << *it; ris << "]"; } #else sim dor(const c&) { ris; } #endif }; #define imie(x...) " [" #x ": " << (x) << "] " #include <ext/pb_ds/assoc_container.hpp> #include <ext/pb_ds/tree_policy.hpp> template <typename A, typename B> using unordered_map2 = __gnu_pbds::gp_hash_table<A, B>; using namespace __gnu_pbds; template <typename T> using ordered_set = __gnu_pbds::tree<T, __gnu_pbds::null_type, less<T>, __gnu_pbds::rb_tree_tag, __gnu_pbds::tree_order_statistics_node_update>; // ordered_set<int> s; s.insert(1); s.insert(2); // s.order_of_key(1); // Out: 0. // *s.find_by_order(1); // Out: 2. using ld = long double; using ll = long long; constexpr int mod = 1000 * 1000 * 1000 + 7; constexpr int odw2 = (mod + 1) / 2; void OdejmijOd(int& a, int b) { a -= b; if (a < 0) a += mod; } int Odejmij(int a, int b) { OdejmijOd(a, b); return a; } void DodajDo(int& a, int b) { a += b; if (a >= mod) a -= mod; } int Dodaj(int a, int b) { DodajDo(a, b); return a; } int Mnoz(int a, int b) { return (ll) a * b % mod; } void MnozDo(int& a, int b) { a = Mnoz(a, b); } int Pot(int a, ll b) { int res = 1; while (b) { if (b % 2 == 1) MnozDo(res, a); a = Mnoz(a, a); b /= 2; } return res; } int Odw(int a) { return Pot(a, mod - 2); } void PodzielDo(int& a, int b) { MnozDo(a, Odw(b)); } int Podziel(int a, int b) { return Mnoz(a, Odw(b)); } int Moduluj(ll x) { x %= mod; if (x < 0) x += mod; return x; } template <typename T> T Maxi(T& a, T b) { return a = max(a, b); } template <typename T> T Mini(T& a, T b) { return a = min(a, b); } char ZnakZnaku(char c) { if (c == 'C') { return 1; } if (c == 'N') { return -1; } assert(false); } vector<int> OcenStosik(string s) { vector<int> ocena; assert(!s.empty()); reverse(s.begin(), s.end()); int jedynki = 0; while ((int) s.size() >= 2 and s.back() == s[(int) s.size() - 2]) { jedynki += ZnakZnaku(s.back()); s.pop_back(); } jedynki += ZnakZnaku(s.back()); s.pop_back(); ocena.push_back(jedynki); while (!s.empty()) { ocena.push_back(ZnakZnaku(s.back())); s.pop_back(); } return ocena; } int C[33][33]; ll dp_[2][33][24 * 32 * 2 + 1][1 * 2 + 1][32 * 2 + 1]; #define dp(pm, g, j, r, b) (dp_[(pm)][(g)][(j) + 24 * 32][(b) + 1][(r) + 32]) int main() { ios_base::sync_with_stdio(false); cin.tie(nullptr); cerr << sizeof(dp_) << endl; int n, m, k; cin >> n >> m >> k; for (int i = 0; i <= n; i++) { C[i][0] = 1; for (int j = 1; j < i; j++) { C[i][j] = Dodaj(C[i - 1][j - 1], C[i - 1][j]); } C[i][i] = 1; } vector<int> input(m + 1); for (int i = 0; i < k; i++) { string s; cin >> s; const vector<int> ocena = OcenStosik(s); assert(input.size() >= ocena.size()); for (int j = 0; j < (int) ocena.size(); j++) { input[j] += ocena[j]; } } for (int i = (int) input.size() - 1; i >= 1; i--) { input[i - 1] += input[i] / 2; input[i] %= 2; } debug() << imie(input); const int D = n - k; dp(0, 0, 0, 0, 0) = 1; for (int pm = 0; pm < m - 1; pm++) { const int PM = (pm % 2); const int PM1 = (pm + 1) % 2; if (PM1) { memset((void*) dp_ + sizeof(dp_) / 2, 0, sizeof(dp_) / 2); } else { memset(dp_, 0, sizeof(dp_) / 2); } const int input_bit = input[m - pm]; cerr << "pm = " << pm << " / " << (m - 1) << endl; for (int g = 0; g <= D; g++) { const int ogr_j = g * m; for (int j = -ogr_j; j <= ogr_j; j++) { int ogr_r = g; if (((ogr_r ^ g ^ input_bit) & 1) == 1) { ogr_r--; if (ogr_r < 0) continue; } for (int r = -ogr_r; r <= ogr_r; r += 2) { const int presum = (r - g + input_bit) / 2; for (int b = -1; b <= 1; b++) { const int value1 = dp(PM, g, j, r, b) % mod; if (value1) { for (int h = 0; g + h <= D; h++) { const int value2 = Mnoz(value1, C[g + h][h]); const int sum_b = h + b; const int new_b = sum_b % 2; const int prej = j - (pm + 1) * h + sum_b / 2; for (int dh = 0; dh <= h; dh++) { const int value3 = Mnoz(value2, C[h][dh]); const int new_j = prej + (pm * 2 + 1) * dh; ll* ptr = &dp(PM1, g + h, new_j, presum, new_b); constexpr ll modmod = 4 * (ll) mod * mod; for (int d = 0; d <= g; d++) { //DodajDo(ptr[d], Mnoz(value3, C[g][d])); ptr[d] += (ll) value3 * C[g][d]; if (ptr[d] >= modmod) { ptr[d] -= modmod; } } } } } } } } } } const int PM = (m - 1) % 2; for (int dlugosc = 0; dlugosc <= D; dlugosc++) { int wynik = 0; const int input_bit_0 = input[0]; const int input_bit_1 = input[1]; for (int same = 0; same <= dlugosc; same++) { for (int dod = 0; dod <= same; dod++) { const int uj = same - dod; const int sposoby = Mnoz(C[same][dod], C[dlugosc][same]); const int ogr_r = D; for (int r = -ogr_r; r <= ogr_r; r++) { for (int b = -1; b <= 1; b++) { const int sum_1 = r + b + input_bit_1; if (sum_1 % 2 == 0) { const int ogr_j = D * m; const int j = -((dod - uj) * m + sum_1 / 2 + input_bit_0); if (-ogr_j <= j and j <= ogr_j) { const int value = Moduluj(dp(PM, dlugosc - same, j, r, b)); DodajDo(wynik, Mnoz(value, sposoby)); } } } } } } if (dlugosc) cout << " "; cout << wynik; } cout << endl; return 0; } |