結果
| 問題 |
No.845 最長の切符
|
| コンテスト | |
| ユーザー |
daut-dlang
|
| 提出日時 | 2019-06-28 23:07:56 |
| 言語 | D (dmd 2.109.1) |
| 結果 |
TLE
|
| 実行時間 | - |
| コード長 | 2,217 bytes |
| コンパイル時間 | 852 ms |
| コンパイル使用メモリ | 110,476 KB |
| 実行使用メモリ | 13,888 KB |
| 最終ジャッジ日時 | 2024-06-22 01:49:51 |
| 合計ジャッジ時間 | 6,337 ms |
|
ジャッジサーバーID (参考情報) |
judge2 / judge1 |
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| ファイルパターン | 結果 |
|---|---|
| sample | AC * 3 |
| other | AC * 12 TLE * 1 -- * 14 |
コンパイルメッセージ
/home/linuxbrew/.linuxbrew/opt/dmd/include/dlang/dmd/std/numeric.d(2999): Warning: cannot inline function `std.numeric.gcdImpl!ulong.gcdImpl`
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.numeric, std.math, std.random;
import core.bitop;
string FMT_F = "%.10f";
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; }
string RDR()() { return readln.chomp; }
T[] ARR(T = long)(in string str, T fix = 0) { auto r = str.split.to!(T[]); r[] += fix; return r; }
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; }
bool inside(T)(T x, T b, T e) { return x >= b && x < e; }
long lcm(long x, long y) { return x * y / gcd(x, y); }
long mod = 10^^9 + 7;
//long mod = 998244353;
//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 main()
{
auto N = RD;
auto M = RD;
auto edges = new long[2][][](N);
foreach (i; 0..M)
{
auto u = RD-1;
auto v = RD-1;
auto c = RD;
edges[u] ~= [v, c];
edges[v] ~= [u, c];
}
foreach (i; 0..N)
{
auto best = new long[](N);
foreach (edge; edges[i])
{
auto to = edge[0];
auto c = edge[1];
best[to] = max(best[to], c);
}
long[2][] newEdges;
foreach (j, e; best)
{
if (e != 0)
newEdges ~= [j, e];
}
edges[i] = newEdges;
}
long search(long start)
{
long[][] open = [[0, start, 1LU << start]];
auto cost = new long[](N);
while (!open.empty)
{
auto n = open.back; open.popBack;
auto c = n[0];
auto from = n[1];
foreach (edge; edges[from])
{
auto to = edge[0];
auto d = edge[1];
auto bit = 1LU << to;
if (bit & n[2]) continue;
cost[to] = max(cost[to], c + d);
open ~= [c+d, to, n[2] | bit];
}
}
auto pos = cost.MIN_POS!"a > b";
return cost[pos];
}
long ans;
foreach (i; 0..N)
{
auto r = search(i);
ans = max(ans, r);
}
writeln(ans);
stdout.flush();
debug readln();
}
daut-dlang