/+ dub.sdl: name "F" dependency "dcomp" version=">=0.6.0" +/ import std.stdio, std.algorithm, std.range, std.conv; // import dcomp.foundation, dcomp.scanner; // import dcomp.modint; alias Mint = ModInt!(10^^9 + 7); Mint[] fact, iFac; static this() { fact = factTable!Mint(10000); iFac = invFactTable!Mint(10000); } Mint C(int n, int k) { if (n < k || n < 0) return Mint(0); return fact[n]*iFac[k]*iFac[n-k]; } Mint solve(int n, int k, Mint[] v) { Mint sm = 0; foreach (i; 0..n-1) { Mint s = v[i]; Mint f = 0; f += C(k, i+1) * Mint(n-k); f += C(k, i+2); sm += s * f * fact[i] * fact[n-(i+2)]; } sm *= iFac[n-k]; return sm; } int main() { auto sc = new Scanner(stdin); int n; sc.read(n); string[] s = new string[n]; foreach (i; 0..n) { sc.read(s[i]); } int[][] g = new int[][](n, n); foreach (i; 0..n) { g[i][i] = -1; foreach (j; i+1..n) { size_t c = 0; while (c < min(s[i].length, s[j].length) && s[i][c] == s[j][c]) c++; g[i][j] = g[j][i] = c.to!int; } } Mint[] v = new Mint[n-1]; foreach (i; 0..n) { g[i].sort!"a>b"; foreach (j; 0..n-1) { v[j] += Mint(g[i][j]); } // writeln(g[i]); } foreach (k; 1..n+1) { writeln(solve(n, k, v) + Mint(k) * fact[n] * iFac[n-k]); } return 0; } /* IMPORT /home/yosupo/Program/dcomp/source/dcomp/modint.d */ // module dcomp.modint; // import dcomp.numeric.primitive; struct ModInt(uint MD) if (MD < int.max) { import std.conv : to; uint v; this(int v) {this(long(v));} this(long v) {this.v = (v%MD+MD)%MD;} static auto normS(uint x) {return (x a[n-1]*T(n)).take(length).array; } T[] invFactTable(T)(size_t length) if (isModInt!T) { import std.algorithm : map, reduce; import std.range : take, recurrence, iota; import std.array : array; auto res = new T[length]; res[$-1] = T(1) / iota(1, length).map!T.reduce!"a*b"; foreach_reverse (i, v; res[0..$-1]) { res[i] = res[i+1] * T(i+1); } return res; } T[] invTable(T)(size_t length) if (isModInt!T) { auto f = factTable!T(length); auto invf = invFactTable!T(length); auto res = new T[length]; foreach (i; 1..length) { res[i] = invf[i] * f[i-1]; } return res; } /* IMPORT /home/yosupo/Program/dcomp/source/dcomp/foundation.d */ // module dcomp.foundation; static if (__VERSION__ <= 2070) { template fold(fun...) if (fun.length >= 1) { auto fold(R, S...)(R r, S seed) { import std.algorithm : reduce; static if (S.length < 2) { return reduce!fun(seed, r); } else { import std.typecons : tuple; return reduce!fun(tuple(seed), r); } } } } version (X86) static if (__VERSION__ < 2071) { import core.bitop : bsf, bsr, popcnt; int bsf(ulong v) { foreach (i; 0..64) { if (v & (1UL << i)) return i; } return -1; } int bsr(ulong v) { foreach_reverse (i; 0..64) { if (v & (1UL << i)) return i; } return -1; } int popcnt(ulong v) { int c = 0; foreach (i; 0..64) { if (v & (1UL << i)) c++; } return c; } } /* IMPORT /home/yosupo/Program/dcomp/source/dcomp/scanner.d */ // module dcomp.scanner; class Scanner { import std.stdio : File; import std.conv : to; import std.range : front, popFront, array, ElementType; import std.array : split; import std.traits : isSomeChar, isStaticArray, isArray; import std.algorithm : map; File f; this(File f) { this.f = f; } char[512] lineBuf; char[] line; private bool succ() { import std.range.primitives : empty, front, popFront; import std.ascii : isWhite; while (true) { while (!line.empty && line.front.isWhite) { line.popFront; } if (!line.empty) break; if (f.eof) return false; line = lineBuf[]; f.readln(line); } return true; } private bool readSingle(T)(ref T x) { import std.algorithm : findSplitBefore; import std.string : strip; import std.conv : parse; if (!succ()) return false; static if (isArray!T) { alias E = ElementType!T; static if (isSomeChar!E) { auto r = line.findSplitBefore(" "); x = r[0].strip.dup; line = r[1]; } else { auto buf = line.split.map!(to!E).array; static if (isStaticArray!T) { assert(buf.length == T.length); } x = buf; line.length = 0; } } else { x = line.parse!T; } return true; } int read(T, Args...)(ref T x, auto ref Args args) { if (!readSingle(x)) return 0; static if (args.length == 0) { return 1; } else { return 1 + read(args); } } } /* IMPORT /home/yosupo/Program/dcomp/source/dcomp/numeric/primitive.d */ // module dcomp.numeric.primitive; import std.traits; import std.bigint; T pow(T, U)(T x, U n) if (!isFloatingPoint!T && (isIntegral!U || is(U == BigInt))) { return pow(x, n, T(1)); } T pow(T, U)(T x, U n, T e) if (isIntegral!U || is(U == BigInt)) { while (n) { if (n & 1) e *= x; x *= x; n /= 2; } return e; } T lcm(T)(in T a, in T b) { import std.numeric : gcd; return a / gcd(a,b) * b; } T[3] extGcd(T)(in T a, in T b) if (!isIntegral!T || isSigned!T) { if (b==0) { return [T(1), T(0), a]; } else { auto e = extGcd(b, a%b); return [e[1], e[0]-a/b*e[1], e[2]]; } }