結果
| 問題 |
No.150 "良問"(良問とは言っていない
|
| コンテスト | |
| ユーザー |
|
| 提出日時 | 2015-02-13 00:43:21 |
| 言語 | D (dmd 2.109.1) |
| 結果 |
WA
|
| 実行時間 | - |
| コード長 | 3,344 bytes |
| コンパイル時間 | 958 ms |
| コンパイル使用メモリ | 123,136 KB |
| 実行使用メモリ | 6,948 KB |
| 最終ジャッジ日時 | 2024-06-12 02:11:56 |
| 合計ジャッジ時間 | 2,061 ms |
|
ジャッジサーバーID (参考情報) |
judge1 / judge3 |
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| ファイルパターン | 結果 |
|---|---|
| sample | WA * 1 |
| other | AC * 17 WA * 3 |
ソースコード
import core.thread;
import std.conv, std.stdio, std.string;
import std.algorithm, std.array, std.bigint, std.container, std.math, std.range, std.regex;
// Input
class EOFException : Throwable { this() { super("EOF"); } }
string[] tokens;
string readToken() { for (; tokens.empty; ) { tokens = readln.split; if (tokens.empty && stdin.eof) throw new EOFException; } auto token = tokens[0]; tokens.popFront; return token; }
int readInt() { return to!int(readToken); }
long readLong() { return to!long(readToken); }
real readReal() { return to!real(readToken); }
// chmin/chmax
void chmin(T)(ref T t, in T f) { if (t > f) t = f; }
void chmax(T)(ref T t, in T f) { if (t < f) t = f; }
// Pair
struct Pair(S, T) {
S x; T y;
int opCmp( const Pair p) const { return (x < p.x) ? -1 : (x > p.x) ? +1 : (y < p.y) ? -1 : (y > p.y) ? +1 : 0; }
int opCmp(ref const Pair p) const { return (x < p.x) ? -1 : (x > p.x) ? +1 : (y < p.y) ? -1 : (y > p.y) ? +1 : 0; }
string toString() const { return "(" ~ to!string(x) ~ ", " ~ to!string(y) ~ ")"; }
}
auto pair(S, T)(inout(S) x, inout(T) y) { return Pair!(S, T)(x, y); }
// Array
int binarySearch(T)(in T[] as, in bool delegate(T) test) { int low = -1, upp = as.length; for (; low + 1 < upp; ) { int mid = (low + upp) >> 1; (test(as[mid]) ? low : upp) = mid; } return upp; }
int lowerBound(T)(in T[] as, in T val) { return as.binarySearch((T a) { return (a < val); }); }
int upperBound(T)(in T[] as, in T val) { return as.binarySearch((T a) { return (a <= val); }); }
T[] unique(T)(in T[] as) { T[] bs; foreach (a; as) if (bs.empty || bs[$ - 1] != a) bs ~= a; return bs; }
immutable INF = 10^^9 + 1;
int V;
int[][] nxt;
int[] ac;
int[] fail;
int newNode() {
nxt ~= new int[](26);
nxt[$ - 1][] = -1;
ac ~= 0;
fail ~= -1;
return V++;
}
void bfs() {
int[] q;
q ~= 0;
for (; !q.empty; ) {
const u = q[0]; q.popFront;
foreach (e; 0 .. 26) {
const v = nxt[u][e];
if (v != -1) {
fail[v] = u ? nxt[fail[u]][e] : 0;
ac[v] |= ac[fail[v]];
q ~= v;
} else {
nxt[u][e] = u ? nxt[fail[u]][e] : 0;
}
}
}
}
int N;
string S;
void main(string[] args) {
V = 0;
newNode;
foreach (k, s; [ "good", "problem" ]) {
int u = 0;
foreach (c; s) {
const e = c - 'a';
if (nxt[u][e] == -1) {
nxt[u][e] = newNode;
}
u = nxt[u][e];
}
ac[u] = 1 << k;
}
bfs;
debug{
foreach(u;0..V)writeln("nxt[",u,"] = ",nxt[u]);
writeln("ac = ",ac);
}
try {
for (; ; ) {
foreach (tc; 0 .. readInt) {
S = readToken;
N = cast(int)(S.length);
auto dp = new int[][][](N + 1, 3, V);
foreach (i; 0 .. N + 1) foreach (f; 0 .. 3) foreach (u; 0 .. V) {
dp[i][f][u] = INF;
}
dp[0][0][0] = 0;
foreach (i; 0 .. N) foreach (f; 0 .. 3) foreach (u; 0 .. V) if (dp[i][f][u] < INF) {
debug{
writeln(i," ",f," ",u,"; ",dp[i][f][u]);
}
foreach (e; 0 .. 26) {
const v = nxt[u][e];
int ff = f;
if (ac[v]) {
if (f == 0 && (ac[v] & 1 << 1)) {
continue;
}
if (ac[v] == 1 << f) {
ff = f + 1;
}
}
debug{
writeln(" ",i+1," ",ff," ",v,"; ",dp[i][f][u] + ((S[i] - 'a' != e) ? 1 : 0));
}
chmin(dp[i + 1][ff][v], dp[i][f][u] + ((S[i] - 'a' != e) ? 1 : 0));
}
}
int ans = INF;
foreach (u; 0 .. V) {
chmin(ans, dp[N][2][u]);
}
writeln(ans);
}
}
} catch (EOFException) {}
}