#include <bits/stdc++.h> #define ll long long #define fors(u, n, s) for(ll u = (s); u < (n); u++) #define foru(u, n) fors(u, n, 0) #define vec vector #define pb push_back #define f first #define s second #define ir(a, b, x) (((a) <= (x)) && ((x) <= (b))) #define pint pair<int, int> #define us unsigned using namespace std; const int M = 13; int m; const int N = 12; int n, k; const int W = M*(1<<(M-1)); // default denum is (1<<(m-1)) 2^(m-1) int read_value(){ ll out = 0; ll w = (1<<(m-1)); bool switched = false; char c; cin >> c; if (c == 'C') out += w; else out -= w; char c_ = c; foru(_i, m-1){ cin >> c; if(c != c_) switched = true; c_ = c; if(switched) w = (w>>1); if (c == 'C') out += w; else out -= w; } return out; } const int A = W*N/2; const int MOD = 1e9+7; int pos_cnt[2*A+1]; int help_a[2*A+1]; //int help_b[2*A+1]; int pos_cnt_save[2*A+1]; int cnt = 0; void step(){ cnt ++; int d = (1<<(m-1)); int w = m*d; foru(i, 2*A+1){ if(i>=w) help_a[i] = pos_cnt[i-w]; else help_a[i] = 0; } if(m == 1) { foru(i, 2*A+1) { pos_cnt[i] = help_a[i] + help_a[2*A-i]; if(pos_cnt[i] >= MOD) pos_cnt[i] -= MOD; } return; } for(int i = 2*A; i>=0; i--){ if(i>=((m-1)*d-d/2)) pos_cnt[i] = pos_cnt[i-((m-1)*d-d/2)]; else pos_cnt[i] = 0; } swap(pos_cnt, help_a); foru(j, m-2) { const int delta_1 = -d+(d>>(j+2)); const int delta_2 = -d-(d>>(j+2)); fors(i, A+1+cnt*W, A-cnt*W){ pos_cnt[i] += help_a[i]; if(pos_cnt[i] >= MOD) pos_cnt[i] -= MOD; } fors(i, min(A+1+cnt*W, 2*A+1+delta_2), A-cnt*W){ help_a[i] = help_a[i-delta_1]+help_a[i-delta_2]; if(help_a[i] >= MOD) help_a[i] -= MOD; } fors(i, min(A+1+cnt*W, 2*A+1+delta_1), min(A+1+cnt*W, 2*A+1+delta_2)){ help_a[i] += help_a[i-delta_1]; } /*fors(i, A+1+cnt*W, A-cnt*W){ help_a[i] = 0; if(i-delta_1 <= 2*A) help_a[i] += help_a[i-delta_1]; if(i-delta_2 <= 2*A) help_a[i] += help_a[i-delta_2]; if(help_a[i] >= MOD) help_a[i] -= MOD; }*/ } foru(i, 2*A+1){ pos_cnt[i] += help_a[i]; if(pos_cnt[i] >= MOD) pos_cnt[i] -= MOD; } foru(i, 2*A+1) { help_a[i] = pos_cnt[i] + pos_cnt[2*A-i]; if(help_a[i] >= MOD) help_a[i] -= MOD; } swap(help_a, pos_cnt); //ll sum = 0; //foru(i, 2*A+1) sum += pos_cnt[i]; //cout << "debug " << sum << endl; } int main(){ //ios_base::sync_with_stdio(0); cin.tie(0); cout.tie(0); cin >> n >> m >> k; ll tot = 0; foru(_i, k) tot += read_value(); if(k == n){ cout << (tot == 0); return 0; } pos_cnt[A] = 1; int cnt = 0; while(true){ int out = 0; foru(i, 2*A+1){ int j = 2*A + tot - i; if(!ir(0, 2*A, j)) continue; out = (((ll)out) + 1LL*pos_cnt[i]*pos_cnt[j])%MOD; } cout << out << " "; cnt ++; if(cnt == n-k+1) return 0; foru(i, 2*A+1) pos_cnt_save[i] = pos_cnt[i]; step(); out = 0; foru(i, 2*A+1){ int j = 2*A + tot - i; if(!ir(0, 2*A, j)) continue; out = ((ll)out + 1LL*pos_cnt[i]*pos_cnt_save[j])%MOD; } cout << out << " "; cnt ++; if(cnt == n-k+1) 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 | #include <bits/stdc++.h> #define ll long long #define fors(u, n, s) for(ll u = (s); u < (n); u++) #define foru(u, n) fors(u, n, 0) #define vec vector #define pb push_back #define f first #define s second #define ir(a, b, x) (((a) <= (x)) && ((x) <= (b))) #define pint pair<int, int> #define us unsigned using namespace std; const int M = 13; int m; const int N = 12; int n, k; const int W = M*(1<<(M-1)); // default denum is (1<<(m-1)) 2^(m-1) int read_value(){ ll out = 0; ll w = (1<<(m-1)); bool switched = false; char c; cin >> c; if (c == 'C') out += w; else out -= w; char c_ = c; foru(_i, m-1){ cin >> c; if(c != c_) switched = true; c_ = c; if(switched) w = (w>>1); if (c == 'C') out += w; else out -= w; } return out; } const int A = W*N/2; const int MOD = 1e9+7; int pos_cnt[2*A+1]; int help_a[2*A+1]; //int help_b[2*A+1]; int pos_cnt_save[2*A+1]; int cnt = 0; void step(){ cnt ++; int d = (1<<(m-1)); int w = m*d; foru(i, 2*A+1){ if(i>=w) help_a[i] = pos_cnt[i-w]; else help_a[i] = 0; } if(m == 1) { foru(i, 2*A+1) { pos_cnt[i] = help_a[i] + help_a[2*A-i]; if(pos_cnt[i] >= MOD) pos_cnt[i] -= MOD; } return; } for(int i = 2*A; i>=0; i--){ if(i>=((m-1)*d-d/2)) pos_cnt[i] = pos_cnt[i-((m-1)*d-d/2)]; else pos_cnt[i] = 0; } swap(pos_cnt, help_a); foru(j, m-2) { const int delta_1 = -d+(d>>(j+2)); const int delta_2 = -d-(d>>(j+2)); fors(i, A+1+cnt*W, A-cnt*W){ pos_cnt[i] += help_a[i]; if(pos_cnt[i] >= MOD) pos_cnt[i] -= MOD; } fors(i, min(A+1+cnt*W, 2*A+1+delta_2), A-cnt*W){ help_a[i] = help_a[i-delta_1]+help_a[i-delta_2]; if(help_a[i] >= MOD) help_a[i] -= MOD; } fors(i, min(A+1+cnt*W, 2*A+1+delta_1), min(A+1+cnt*W, 2*A+1+delta_2)){ help_a[i] += help_a[i-delta_1]; } /*fors(i, A+1+cnt*W, A-cnt*W){ help_a[i] = 0; if(i-delta_1 <= 2*A) help_a[i] += help_a[i-delta_1]; if(i-delta_2 <= 2*A) help_a[i] += help_a[i-delta_2]; if(help_a[i] >= MOD) help_a[i] -= MOD; }*/ } foru(i, 2*A+1){ pos_cnt[i] += help_a[i]; if(pos_cnt[i] >= MOD) pos_cnt[i] -= MOD; } foru(i, 2*A+1) { help_a[i] = pos_cnt[i] + pos_cnt[2*A-i]; if(help_a[i] >= MOD) help_a[i] -= MOD; } swap(help_a, pos_cnt); //ll sum = 0; //foru(i, 2*A+1) sum += pos_cnt[i]; //cout << "debug " << sum << endl; } int main(){ //ios_base::sync_with_stdio(0); cin.tie(0); cout.tie(0); cin >> n >> m >> k; ll tot = 0; foru(_i, k) tot += read_value(); if(k == n){ cout << (tot == 0); return 0; } pos_cnt[A] = 1; int cnt = 0; while(true){ int out = 0; foru(i, 2*A+1){ int j = 2*A + tot - i; if(!ir(0, 2*A, j)) continue; out = (((ll)out) + 1LL*pos_cnt[i]*pos_cnt[j])%MOD; } cout << out << " "; cnt ++; if(cnt == n-k+1) return 0; foru(i, 2*A+1) pos_cnt_save[i] = pos_cnt[i]; step(); out = 0; foru(i, 2*A+1){ int j = 2*A + tot - i; if(!ir(0, 2*A, j)) continue; out = ((ll)out + 1LL*pos_cnt[i]*pos_cnt_save[j])%MOD; } cout << out << " "; cnt ++; if(cnt == n-k+1) return 0; } } |