結果
| 問題 |
No.1016 三目並べ
|
| コンテスト | |
| ユーザー |
|
| 提出日時 | 2020-04-03 22:56:47 |
| 言語 | D (dmd 2.109.1) |
| 結果 |
WA
|
| 実行時間 | - |
| コード長 | 3,284 bytes |
| コンパイル時間 | 1,464 ms |
| コンパイル使用メモリ | 179,320 KB |
| 実行使用メモリ | 6,944 KB |
| 最終ジャッジ日時 | 2024-06-22 06:30:55 |
| 合計ジャッジ時間 | 2,101 ms |
|
ジャッジサーバーID (参考情報) |
judge2 / judge3 |
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| ファイルパターン | 結果 |
|---|---|
| sample | AC * 1 |
| other | WA * 10 |
ソースコード
import std.conv, std.functional, std.range, std.stdio, std.string;
import std.algorithm, std.array, std.bigint, std.bitmanip, std.complex, std.container, std.math, std.mathspecial, std.numeric, std.regex, std.typecons;
import core.bitop;
class EOFException : Throwable { this() { super("EOF"); } }
string[] tokens;
string readToken() { for (; tokens.empty; ) { if (stdin.eof) { throw new EOFException; } tokens = readln.split; } auto token = tokens.front; tokens.popFront; return token; }
int readInt() { return readToken.to!int; }
long readLong() { return readToken.to!long; }
real readReal() { return readToken.to!real; }
bool chmin(T)(ref T t, in T f) { if (t > f) { t = f; return true; } else { return false; } }
bool chmax(T)(ref T t, in T f) { if (t < f) { t = f; return true; } else { return false; } }
int binarySearch(alias pred, T)(in T[] as) { int lo = -1, hi = cast(int)(as.length); for (; lo + 1 < hi; ) { const mid = (lo + hi) >> 1; (unaryFun!pred(as[mid]) ? hi : lo) = mid; } return hi; }
int lowerBound(T)(in T[] as, T val) { return as.binarySearch!(a => (a >= val)); }
int upperBound(T)(in T[] as, T val) { return as.binarySearch!(a => (a > val)); }
bool checkPart(string part) {
const len = cast(int)(part.length);
const o = part.count('o');
bool ret;
switch (o) {
case 0: {
ret = false;
} break;
case 1: {
ret = (len >= 3 && part[0] == '-' && part[len - 1] == '-');
} break;
case 2: {
ret = !(len % 2 == 0 && part[0] == 'o' && part[len - 1] == 'o');
} break;
default: {
ret = true;
}
}
return ret;
}
bool check(string board) {
auto parts = board.split("x");
bool ret;
foreach (part; parts) {
if (checkPart(part)) {
ret = true;
}
}
return ret;
}
void main() {
debug {
enum lim = 13;
foreach (n; 1 .. lim + 1) {
auto dp = new bool[3^^n];
foreach_reverse (p; 0 .. 3^^n) {
const board = iota(n).map!(i => "-ox"[p / 3^^i % 3]).array;
const diff = board.count('o') - board.count('x');
if (board.count('-') == 0) {
// done
foreach (i; 0 .. n - 3 + 1) {
if (board[i .. i + 3] == "ooo") {
dp[p] = true;
}
}
} else if (diff == 0) {
// o
foreach (i; 0 .. n) {
if (board[i] == '-') {
if (dp[p + 3^^i]) {
dp[p] = true;
}
}
}
} else if (diff == 1) {
// x
dp[p] = true;
foreach (i; 0 .. n) {
if (board[i] == '-') {
if (!dp[p + 2 * 3^^i]) {
dp[p] = false;
}
}
}
} else {
continue;
}
if (diff == 0 && dp[p]) {
if (dp[p]) {
writeln(board, ": ", diff, " ", dp[p]);
}
const res = check(board);
assert(dp[p] == res, format("FAIL %s: %s %s", board, dp[p], res));
}
}
}
}
try {
for (; ; ) {
const numCases = readInt();
foreach (caseId; 0 .. numCases) {
const N = readInt();
const S = readToken();
const ans = check(S);
writeln(ans ? "O" : "X");
}
}
} catch (EOFException e) {
}
}