結果
問題 | No.2950 Max Min Product |
ユーザー | 👑 hos.lyric |
提出日時 | 2024-10-25 22:12:42 |
言語 | D (dmd 2.106.1) |
結果 |
AC
|
実行時間 | 223 ms / 3,000 ms |
コード長 | 4,866 bytes |
コンパイル時間 | 3,394 ms |
コンパイル使用メモリ | 152,520 KB |
実行使用メモリ | 18,308 KB |
最終ジャッジ日時 | 2024-10-25 23:30:35 |
合計ジャッジ時間 | 11,570 ms |
ジャッジサーバーID (参考情報) |
judge2 / judge4 |
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テストケース
テストケース表示入力 | 結果 | 実行時間 実行使用メモリ |
---|---|---|
testcase_00 | AC | 1 ms
6,812 KB |
testcase_01 | AC | 1 ms
6,820 KB |
testcase_02 | AC | 1 ms
6,820 KB |
testcase_03 | AC | 145 ms
13,444 KB |
testcase_04 | AC | 162 ms
17,632 KB |
testcase_05 | AC | 152 ms
14,624 KB |
testcase_06 | AC | 212 ms
16,896 KB |
testcase_07 | AC | 212 ms
17,132 KB |
testcase_08 | AC | 210 ms
18,308 KB |
testcase_09 | AC | 103 ms
10,308 KB |
testcase_10 | AC | 184 ms
16,436 KB |
testcase_11 | AC | 160 ms
17,528 KB |
testcase_12 | AC | 208 ms
18,024 KB |
testcase_13 | AC | 209 ms
17,800 KB |
testcase_14 | AC | 209 ms
16,940 KB |
testcase_15 | AC | 195 ms
16,912 KB |
testcase_16 | AC | 138 ms
12,776 KB |
testcase_17 | AC | 155 ms
17,388 KB |
testcase_18 | AC | 211 ms
17,652 KB |
testcase_19 | AC | 210 ms
16,868 KB |
testcase_20 | AC | 209 ms
17,996 KB |
testcase_21 | AC | 121 ms
10,276 KB |
testcase_22 | AC | 161 ms
15,264 KB |
testcase_23 | AC | 107 ms
9,088 KB |
testcase_24 | AC | 214 ms
18,240 KB |
testcase_25 | AC | 208 ms
17,072 KB |
testcase_26 | AC | 212 ms
18,100 KB |
testcase_27 | AC | 138 ms
13,056 KB |
testcase_28 | AC | 200 ms
18,040 KB |
testcase_29 | AC | 145 ms
12,444 KB |
testcase_30 | AC | 209 ms
16,932 KB |
testcase_31 | AC | 211 ms
17,344 KB |
testcase_32 | AC | 206 ms
16,888 KB |
testcase_33 | AC | 161 ms
15,204 KB |
testcase_34 | AC | 107 ms
8,920 KB |
testcase_35 | AC | 156 ms
16,232 KB |
testcase_36 | AC | 223 ms
18,104 KB |
testcase_37 | AC | 218 ms
16,936 KB |
testcase_38 | AC | 220 ms
17,036 KB |
testcase_39 | AC | 2 ms
6,820 KB |
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; } string COLOR(string s = "") { return "\x1b[" ~ s ~ "m"; } 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)); } struct ModInt(uint M_) { import std.conv : to; alias M = M_; uint x; this(ModInt a) { x = a.x; } this(uint x_) { x = x_ % M; } this(ulong x_) { x = cast(uint)(x_ % M); } this(int x_) { x = ((x_ %= cast(int)(M)) < 0) ? (x_ + cast(int)(M)) : x_; } this(long x_) { x = cast(uint)(((x_ %= cast(long)(M)) < 0) ? (x_ + cast(long)(M)) : x_); } ref ModInt opAssign(T)(inout(T) a) if (is(T == uint) || is(T == ulong) || is(T == int) || is(T == long)) { return this = ModInt(a); } ref ModInt opOpAssign(string op, T)(T a) { static if (is(T == ModInt)) { static if (op == "+") { x = ((x += a.x) >= M) ? (x - M) : x; } else static if (op == "-") { x = ((x -= a.x) >= M) ? (x + M) : x; } else static if (op == "*") { x = cast(uint)((cast(ulong)(x) * a.x) % M); } else static if (op == "/") { this *= a.inv(); } else static assert(false); return this; } else static if (op == "^^") { if (a < 0) return this = inv()^^(-a); ModInt b = this, c = 1U; for (long e = a; e; e >>= 1) { if (e & 1) c *= b; b *= b; } return this = c; } else { return mixin("this " ~ op ~ "= ModInt(a)"); } } ModInt inv() const { uint a = M, b = x; int y = 0, z = 1; for (; b; ) { const q = a / b; const c = a - q * b; a = b; b = c; const w = y - cast(int)(q) * z; y = z; z = w; } assert(a == 1); return ModInt(y); } ModInt opUnary(string op)() const { static if (op == "+") { return this; } else static if (op == "-") { ModInt a; a.x = x ? (M - x) : 0U; return a; } else static assert(false); } ModInt opBinary(string op, T)(T a) const { return mixin("ModInt(this) " ~ op ~ "= a"); } ModInt opBinaryRight(string op, T)(T a) const { return mixin("ModInt(a) " ~ op ~ "= this"); } bool opCast(T: bool)() const { return (x != 0U); } string toString() const { return x.to!string; } } enum MO = 998244353; alias Mint = ModInt!MO; void main() { try { for (; ; ) { const N = readInt; auto A = new int[N]; foreach (i; 0 .. N) { A[i] = readInt; } Mint ans; auto as = new int[N + 1]; auto bs = new int[N + 1]; auto cs = new int[N + 1]; auto ds = new int[N + 1]; auto ess = new Mint[4][N + 1]; void rec(int l, int r) { if (l + 1 == r) { ans += Mint(A[l]) * Mint(A[l]); } else { const m = (l + r) / 2; rec(l, m); rec(m, r); as[m] = cs[m] = int.max; bs[m] = ds[m] = int.min; foreach (u; 0 .. 4) ess[m][u] = 0; foreach_reverse (i; l .. m) { as[i] = min(A[i], as[i + 1]); bs[i] = max(A[i], bs[i + 1]); } foreach (i; m .. r) { cs[i + 1] = min(cs[i], A[i]); ds[i + 1] = max(ds[i], A[i]); ess[i + 1][0] = ess[i][0] + 1; ess[i + 1][1] = ess[i][1] + cs[i + 1]; ess[i + 1][2] = ess[i][2] + ds[i + 1]; ess[i + 1][3] = ess[i][3] + Mint(cs[i + 1]) * Mint(ds[i + 1]); } int j = m, k = m; foreach_reverse (i; l .. m) { for (; j < r && as[i] <= cs[j + 1]; ++j) {} for (; k < r && bs[i] >= ds[k + 1]; ++k) {} debug writefln("[%s, %s) %s %s %s", l, r, i, j, k); ans += Mint(as[i]) * Mint(bs[i]) * ess[min(j, k)][0]; if (j < k) ans += Mint(bs[i]) * (ess[k][1] - ess[j][1]); if (k < j) ans += Mint(as[i]) * (ess[j][2] - ess[k][2]); ans += (ess[r][3] - ess[max(j, k)][3]); } } } rec(0, N); writeln(ans); } } catch (EOFException e) { } }