#include <bits/stdc++.h> using namespace std; const int MOD = 1'000'000'007; vector <vector<int>> computeMaxRun(int n, const vector <int> &v) { vector <vector<int>> maxRun(2, vector <int> (n + 1)); for (int incr = 0; incr <= 1; incr++) for (int i = n; i >= 0; i--) { if (i == n || incr != (v[i] < v[i + 1])) { maxRun[incr][i] = min(i + 1, n); } else { maxRun[incr][i] = maxRun[incr][i + 1]; } } return maxRun; } vector <int> solve(int n, int m, vector <int> &a, vector <int> &b) { vector <int> ans(n + m, 0); auto aRun = computeMaxRun(n, a); auto bRun = computeMaxRun(m, b); vector <vector<vector<vector<bool>>>> dp( n + 1, vector <vector<vector<bool>>> (m + 1, vector <vector<bool>> (2, vector <bool> (2, false))) ); for (int la = 0; la < n; la++) for (int lb = 0; lb < m; lb++) { for (int ra = la; ra <= n; ra++) for (int rb = lb; rb <= m; rb++) { for (int incr = 0; incr <= 1; incr++) for (int aLast = 0; aLast <= 1; aLast++) { dp[ra][rb][incr][aLast] = false; } } for (int incr = 0; incr <= 1; incr++) { dp[la][lb][incr][0] = true; } auto isAny = [&](int x, int y) { for (int incr2 = 0; incr2 <= 1; incr2++) for (int aLast2 = 0; aLast2 <= 1; aLast2++) { if (dp[x][y][incr2][aLast2]) return true; } return false; }; int enda = n, endb = m; for (int maxStab = 2; maxStab <= n + m; maxStab++) { int pairs = 0; while (enda >= la && isAny(enda, m)) enda--; while (endb >= lb && isAny(n, endb)) endb--; for (int ra = la; ra <= n; ra++) { int bMax; if (ra > enda) { bMax = endb; } else { bMax = m; } for (int rb = lb; rb <= bMax; rb++) { for (int incr = 0; incr <= 1; incr++) for (int aLast = 0; aLast <= 1; aLast++) { if (dp[ra][rb][incr][aLast]) { int last; if (ra == la && rb == lb) { last = -1; } else if (aLast) { last = a[ra - 1]; } else { last = b[rb - 1]; } if (last == -1 || incr != (last < a[ra])) { for (int ra2 = ra + 1; ra2 <= min(ra + maxStab - 1, aRun[1 - incr][ra]); ra2++) { dp[ra2][rb][1 - incr][1] = true; } } if (last == -1 || incr != (last < b[rb])) { for (int rb2 = rb + 1; rb2 <= min(rb + maxStab - 1, bRun[1 - incr][rb]); rb2++) { dp[ra][rb2][1 - incr][0] = true; } } if (last == -1 || incr != (last < (incr ? max(a[ra], b[rb]) : min(a[ra], b[rb])))) { int dMin = max(1, maxStab - 1 - (bRun[1 - incr][rb] - rb)); int dMax = min(maxStab - 2, aRun[1 - incr][ra] - ra); for (int d = dMin; d <= dMax; d++) { int ra2 = ra + d, rb2 = rb + (maxStab - 1 - d); int aLast2 = (a[ra2 - 1] < b[rb2 - 1]) ^ (1 - incr); dp[ra2][rb2][1 - incr][aLast2] = true; } } } } } } bool breakHere = enda == la - 1 && endb == lb - 1; for (int ra = la + 1; ra <= n; ra++) { for (int rb = lb + 1; rb <= m; rb++) { if (isAny(ra, rb)) { int index = maxStab - 1; ans[index]++; if (ans[index] >= MOD) { ans[index] -= MOD; } if (!breakHere && index < n + m - 1) { ans[index + 1]--; if (ans[index + 1] < 0) { ans[index + 1] += MOD; } } } } } if (breakHere) { break; } } } return ans; } int main() { ios_base::sync_with_stdio(false); int n, m; cin >> n >> m; vector <int> a(n), b(m); for (int &ai : a) { cin >> ai; ai--; } for (int &bi : b) { cin >> bi; bi--; } auto ans = solve(n, m, a, b); for (int x : ans) { cout << x << ' '; } 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 | #include <bits/stdc++.h> using namespace std; const int MOD = 1'000'000'007; vector <vector<int>> computeMaxRun(int n, const vector <int> &v) { vector <vector<int>> maxRun(2, vector <int> (n + 1)); for (int incr = 0; incr <= 1; incr++) for (int i = n; i >= 0; i--) { if (i == n || incr != (v[i] < v[i + 1])) { maxRun[incr][i] = min(i + 1, n); } else { maxRun[incr][i] = maxRun[incr][i + 1]; } } return maxRun; } vector <int> solve(int n, int m, vector <int> &a, vector <int> &b) { vector <int> ans(n + m, 0); auto aRun = computeMaxRun(n, a); auto bRun = computeMaxRun(m, b); vector <vector<vector<vector<bool>>>> dp( n + 1, vector <vector<vector<bool>>> (m + 1, vector <vector<bool>> (2, vector <bool> (2, false))) ); for (int la = 0; la < n; la++) for (int lb = 0; lb < m; lb++) { for (int ra = la; ra <= n; ra++) for (int rb = lb; rb <= m; rb++) { for (int incr = 0; incr <= 1; incr++) for (int aLast = 0; aLast <= 1; aLast++) { dp[ra][rb][incr][aLast] = false; } } for (int incr = 0; incr <= 1; incr++) { dp[la][lb][incr][0] = true; } auto isAny = [&](int x, int y) { for (int incr2 = 0; incr2 <= 1; incr2++) for (int aLast2 = 0; aLast2 <= 1; aLast2++) { if (dp[x][y][incr2][aLast2]) return true; } return false; }; int enda = n, endb = m; for (int maxStab = 2; maxStab <= n + m; maxStab++) { int pairs = 0; while (enda >= la && isAny(enda, m)) enda--; while (endb >= lb && isAny(n, endb)) endb--; for (int ra = la; ra <= n; ra++) { int bMax; if (ra > enda) { bMax = endb; } else { bMax = m; } for (int rb = lb; rb <= bMax; rb++) { for (int incr = 0; incr <= 1; incr++) for (int aLast = 0; aLast <= 1; aLast++) { if (dp[ra][rb][incr][aLast]) { int last; if (ra == la && rb == lb) { last = -1; } else if (aLast) { last = a[ra - 1]; } else { last = b[rb - 1]; } if (last == -1 || incr != (last < a[ra])) { for (int ra2 = ra + 1; ra2 <= min(ra + maxStab - 1, aRun[1 - incr][ra]); ra2++) { dp[ra2][rb][1 - incr][1] = true; } } if (last == -1 || incr != (last < b[rb])) { for (int rb2 = rb + 1; rb2 <= min(rb + maxStab - 1, bRun[1 - incr][rb]); rb2++) { dp[ra][rb2][1 - incr][0] = true; } } if (last == -1 || incr != (last < (incr ? max(a[ra], b[rb]) : min(a[ra], b[rb])))) { int dMin = max(1, maxStab - 1 - (bRun[1 - incr][rb] - rb)); int dMax = min(maxStab - 2, aRun[1 - incr][ra] - ra); for (int d = dMin; d <= dMax; d++) { int ra2 = ra + d, rb2 = rb + (maxStab - 1 - d); int aLast2 = (a[ra2 - 1] < b[rb2 - 1]) ^ (1 - incr); dp[ra2][rb2][1 - incr][aLast2] = true; } } } } } } bool breakHere = enda == la - 1 && endb == lb - 1; for (int ra = la + 1; ra <= n; ra++) { for (int rb = lb + 1; rb <= m; rb++) { if (isAny(ra, rb)) { int index = maxStab - 1; ans[index]++; if (ans[index] >= MOD) { ans[index] -= MOD; } if (!breakHere && index < n + m - 1) { ans[index + 1]--; if (ans[index + 1] < 0) { ans[index + 1] += MOD; } } } } } if (breakHere) { break; } } } return ans; } int main() { ios_base::sync_with_stdio(false); int n, m; cin >> n >> m; vector <int> a(n), b(m); for (int &ai : a) { cin >> ai; ai--; } for (int &bi : b) { cin >> bi; bi--; } auto ans = solve(n, m, a, b); for (int x : ans) { cout << x << ' '; } return 0; } |