結果
| 問題 | No.619 CardShuffle |
| ユーザー |
 te-sh
|
| 提出日時 | 2017-12-19 15:15:45 |
| 言語 | D (dmd 2.107.1) |
| 結果 |
CE
(最新)
AC
(最初)
|
| 実行時間 | - |
| コード長 | 5,222 bytes |
| コンパイル時間 | 562 ms |
| コンパイル使用メモリ | 125,420 KB |
| 最終ジャッジ日時 | 2023-09-03 17:43:19 |
| 合計ジャッジ時間 | 1,337 ms |
|
ジャッジサーバーID （参考情報） |
judge15 / judge12 |
コンパイルエラー時のメッセージ・ソースコードは、提出者また管理者しか表示できないようにしております。（リジャッジ後のコンパイルエラーは公開されます）
ただし、clay言語の場合は開発者のデバッグのため、公開されます。
ただし、clay言語の場合は開発者のデバッグのため、公開されます。
コンパイルメッセージ
/dmd2/linux/bin64/../../src/phobos/std/format/internal/write.d(164): Error: cannot implicitly convert expression `obj` of type `const(FactorRing!(1000000007, false))` to `int` /dmd2/linux/bin64/../../src/phobos/std/format/write.d(1239): Error: template instance `std.format.internal.write.formatValueImpl!(LockingTextWriter, FactorRing!(1000000007, false), char)` error instantiating /dmd2/linux/bin64/../../src/phobos/std/format/write.d(632): instantiated from here: `formatValue!(LockingTextWriter, FactorRing!(1000000007, false), char)` /dmd2/linux/bin64/../../src/phobos/std/stdio.d(1722): instantiated from here: `formattedWrite!(LockingTextWriter, char, FactorRing!(1000000007, false))` /dmd2/linux/bin64/../../src/phobos/std/stdio.d(4237): instantiated from here: `write!(FactorRing!(1000000007, false), char)` Main.d(37): instantiated from here: `writeln!(FactorRing!(1000000007, false))`
ソースコード
import std.algorithm, std.conv, std.range, std.stdio, std.string;
const mod = 10^^9+7;
alias mint = FactorRing!mod;
void main()
{
auto n = readln.chomp.to!int, n2 = (n+1)/2;
auto e = new Elem[](n2);
auto rd1 = readln.splitter;
foreach (i; 0..n2-1) {
auto a = rd1.front.to!int; rd1.popFront();
auto add = rd1.front == "+"; rd1.popFront();
e[i] = Elem(add, mint(a));
}
e[n2-1] = Elem(true, mint(rd1.front.to!int));
auto st = SegmentTree!(Elem, mergeElem)(e, Elem(true));
auto q = readln.chomp.to!int;
foreach (_; 0..q) {
auto rd2 = readln.splitter;
auto t = rd2.front; rd2.popFront();
auto x1 = rd2.front.to!int-1; rd2.popFront();
auto x2 = rd2.front.to!int-1;
if (t == "!") {
auto e1 = st[x1/2], e2 = st[x2/2];
if (x1 & 1)
swap(e1.add, e2.add);
else
swap(e1.a, e2.a);
st[x1/2] = e1;
st[x2/2] = e2;
} else {
writeln(st[x1/2..x2/2+1].value);
}
}
}
struct Elem
{
bool empty, one, add;
mint a, b, c;
pure this(bool one, bool add, mint a, mint b, mint c)
{
this.one = one;
this.add = add;
this.a = a;
this.b = b;
this.c = c;
}
pure this(bool empty) { this.empty = true; }
pure this(bool add, mint a) { this(true, add, a, mint(0), mint(0)); }
pure this(bool add, mint a, mint b, mint c) { this(false, add, a, b, c); }
pure value() { return a + b + c; }
}
pure Elem mergeElem(Elem x, Elem y)
{
if (y.empty) {
return x;
} else if (x.empty) {
return y;
} else if (x.one && y.one) {
if (x.add) {
return Elem(y.add, x.a, mint(0), y.a);
} else {
return Elem(y.add, x.a * y.a);
}
} else if (x.one && !y.one) {
if (x.add) {
return Elem(y.add, x.a, y.a + y.b, y.c);
} else {
return Elem(y.add, x.a * y.a, y.b, y.c);
}
} else if (!x.one && y.one) {
if (x.add) {
return Elem(y.add, x.a, x.b + x.c, y.a);
} else {
return Elem(y.add, x.a, x.b, x.c * y.a);
}
} else {
if (x.add) {
return Elem(y.add, x.a, x.b + x.c + y.a + y.b, y.c);
} else {
return Elem(y.add, x.a, x.b + x.c * y.a + y.b, y.c);
}
}
}
struct SegmentTree(T, alias pred = "a + b")
{
import core.bitop, std.functional;
alias predFun = binaryFun!pred;
const size_t n, an;
T[] buf;
T unit;
this(size_t n, T unit = T.init)
{
this.n = n;
this.unit = unit;
an = (1 << ((n - 1).bsr + 1));
buf = new T[](an * 2);
if (T.init != unit) {
buf[] = unit;
}
}
this(T[] init, T unit = T.init)
{
this(init.length, unit);
buf[an..an+n][] = init[];
foreach_reverse (i; 1..an)
buf[i] = predFun(buf[i*2], buf[i*2+1]);
}
void opIndexAssign(T val, size_t i)
{
buf[i += an] = val;
while (i /= 2)
buf[i] = predFun(buf[i * 2], buf[i * 2 + 1]);
}
pure T opSlice(size_t l, size_t r)
{
l += an; r += an;
T r1 = unit, r2 = unit;
while (l != r) {
if (l % 2) r1 = predFun(r1, buf[l++]);
if (r % 2) r2 = predFun(buf[--r], r2);
l /= 2; r /= 2;
}
return predFun(r1, r2);
}
pure size_t opDollar() { return n; }
pure T opIndex(size_t i) { return buf[i + an]; }
}
struct FactorRing(int m, bool pos = false)
{
version(BigEndian) {
union { long vl; struct { int vi2; int vi; } }
} else {
union { long vl; int vi; }
}
static init() { return FactorRing!(m, pos)(0); }
@property int toInt() { return vi; }
alias toInt this;
this(int v) { vi = v; }
this(int v, bool runMod) { vi = runMod ? mod(v) : v; }
this(long v) { vi = mod(v); }
ref FactorRing!(m, pos) opAssign(int v) { vi = v; return this; }
pure auto mod(int v) const
{
static if (pos) return v % m;
else return (v % m + m) % m;
}
pure auto mod(long v) const
{
static if (pos) return cast(int)(v % m);
else return cast(int)((v % m + m) % m);
}
static if (!pos) {
pure auto opUnary(string op: "-")() const { return FactorRing!(m, pos)(mod(-vi)); }
}
static if (m < int.max / 2) {
pure auto opBinary(string op: "+")(int rhs) const { return FactorRing!(m, pos)(mod(vi + rhs)); }
pure auto opBinary(string op: "-")(int rhs) const { return FactorRing!(m, pos)(mod(vi - rhs)); }
} else {
pure auto opBinary(string op: "+")(int rhs) const { return FactorRing!(m, pos)(mod(vl + rhs)); }
pure auto opBinary(string op: "-")(int rhs) const { return FactorRing!(m, pos)(mod(vl - rhs)); }
}
pure auto opBinary(string op: "*")(int rhs) const { return FactorRing!(m, pos)(mod(vl * rhs)); }
pure auto opBinary(string op)(FactorRing!(m, pos) rhs) const
if (op == "+" || op == "-" || op == "*") { return opBinary!op(rhs.vi); }
static if (m < int.max / 2) {
auto opOpAssign(string op: "+")(int rhs) { vi = mod(vi + rhs); }
auto opOpAssign(string op: "-")(int rhs) { vi = mod(vi - rhs); }
} else {
auto opOpAssign(string op: "+")(int rhs) { vi = mod(vl + rhs); }
auto opOpAssign(string op: "-")(int rhs) { vi = mod(vl - rhs); }
}
auto opOpAssign(string op: "*")(int rhs) { vi = mod(vl * rhs); }
auto opOpAssign(string op)(FactorRing!(m, pos) rhs)
if (op == "+" || op == "-" || op == "*") { return opOpAssign!op(rhs.vi); }
}