結果
| 問題 |
No.1894 Delete AB
|
| コンテスト | |
| ユーザー |
daut-dlang
|
| 提出日時 | 2022-04-08 22:12:21 |
| 言語 | D (dmd 2.109.1) |
| 結果 |
AC
|
| 実行時間 | 36 ms / 2,000 ms |
| コード長 | 3,274 bytes |
| コンパイル時間 | 890 ms |
| コンパイル使用メモリ | 121,824 KB |
| 実行使用メモリ | 13,416 KB |
| 最終ジャッジ日時 | 2024-06-22 14:52:11 |
| 合計ジャッジ時間 | 1,717 ms |
|
ジャッジサーバーID (参考情報) |
judge5 / judge2 |
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| ファイルパターン | 結果 |
|---|---|
| sample | AC * 1 |
| other | AC * 14 |
ソースコード
import std.stdio, std.conv, std.functional, std.string;
import std.algorithm, std.array, std.container, std.range, std.typecons;
import std.bigint, std.numeric, std.math, std.random;
import core.bitop;
string FMT_F = "%.10f";
static File _f;
void file_io(string fn) { _f = File(fn, "r"); }
static string[] s_rd;
T _RD(T = long)() { while(!s_rd.length) s_rd = readln.chomp.split; string res = s_rd[0]; s_rd.popFront; return res.to!T; }
T _RD(T = long)(File f) { while(!s_rd.length) s_rd = f.readln.chomp.split; string res = s_rd[0]; s_rd.popFront; return res.to!T; }
T[] _RDA(T = long)(T fix = 0) { auto r = readln.chomp.split.to!(T[]); r[] += fix; return r; }
T[] _RDA(T = long)(File f, T fix = 0) { auto r = f.readln.chomp.split.to!(T[]); r[] += fix; return r; }
T RD(T = long)() { if (_f.isOpen) return _RD!T(_f); else return _RD!T; }
T[] RDA(T = long)(T fix = 0) { if (_f.isOpen) return _RDA!T(_f, fix); else return _RDA!T(fix); }
size_t[] MAKE_IDX(alias less = "a < b", Range)(Range range) { auto idx = new size_t[](range.length); makeIndex!(less)(range, idx); return idx;}
size_t MIN_POS(alias less = "a < b", Range)(Range range) { auto r = minPos!(less)(range); return range.length - r.length; }
void chmin(T)(ref T x, T y) { x = min(x, y); } void chmax(T)(ref T x, T y) { x = max(x, y); }
bool inside(T)(T x, T b, T e) { return x >= b && x < e; }
T lcm(T)(T x, T y) { return x * (y / gcd(x, y)); }
double euDist(T)(T[] a, T[] b) { auto c = a.dup; c[] -= b[]; c[] *= c[]; return sqrt(cast(double)c.sum); }
double[] rotate(double[] vec, double rad) { return [cos(rad)*vec[0] - sin(rad)*vec[1], sin(rad)*vec[0] + cos(rad)*vec[1]]; }
double norm(double[] vec) { return sqrt(reduce!((a,b)=>a+b*b)(0.0, vec)); }
double dotProd(double[] a, double[] b) { auto r = a.dup; r[] *= b[]; return r.sum; }
//long mod = 10^^9 + 7;
long mod = 998_244_353;
//long mod = 1_000_003;
void moda(ref long x, long y) { x = (x + y) % mod; }
void mods(ref long x, long y) { x = ((x + mod) - (y % mod)) % mod; }
void modm(ref long x, long y) { x = (x * y) % mod; }
void modpow(ref long x, long y) { if (!y) { x = 1; return; } auto t = x; x.modpow(y>>1); x.modm(x); if (y&1) x.modm(t); }
void modd(ref long x, long y) { y.modpow(mod - 2); x.modm(y); }
void main()
{
auto T = RD;
auto ans = new char[][](T);
foreach (ti; 0..T)
{
auto N = RD;
auto S = RD!string;
auto link = new long[][](N+2);
foreach (long i; 0..N+2)
{
link[i] = [i-1, i+1];
}
long i = 1;
while (i <= N)
{
debug writeln("i:", i);
debug writeln(link);
debug
{
string tmp;
long pos = link[0][1];
while (pos <= N)
{
tmp ~= S[pos-1];
pos = link[pos][1];
}
writeln(tmp);
}
auto j = link[i][1];
if (j == N+1) break;
auto k = link[j][1];
if (k == N+1) break;
if (S[i-1] == 'A' && S[j-1] == 'B' && S[k-1] == 'B')
{
auto jj = link[i][0];
link[jj][1] = k;
link[k][0] = jj;
if (jj == 0)
i = link[jj][1];
else
{
auto ii = link[jj][0];
if (ii == 0)
i = jj;
else
i = ii;
}
}
else
i = link[i][1];
}
long pos = link[0][1];
while (pos <= N)
{
ans[ti] ~= S[pos-1];
pos = link[pos][1];
}
}
foreach (e; ans)
writeln(e);
stdout.flush;
debug readln;
}
daut-dlang