結果
問題 | No.1995 CHIKA Road |
ユーザー | daut-dlang |
提出日時 | 2022-07-01 22:23:09 |
言語 | D (dmd 2.106.1) |
結果 |
AC
|
実行時間 | 405 ms / 2,000 ms |
コード長 | 3,530 bytes |
コンパイル時間 | 1,037 ms |
コンパイル使用メモリ | 135,584 KB |
実行使用メモリ | 51,688 KB |
最終ジャッジ日時 | 2024-06-22 15:37:53 |
合計ジャッジ時間 | 7,339 ms |
ジャッジサーバーID (参考情報) |
judge5 / judge1 |
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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
6,940 KB |
testcase_02 | AC | 1 ms
6,944 KB |
testcase_03 | AC | 1 ms
6,940 KB |
testcase_04 | AC | 1 ms
6,944 KB |
testcase_05 | AC | 1 ms
6,948 KB |
testcase_06 | AC | 20 ms
6,940 KB |
testcase_07 | AC | 72 ms
14,488 KB |
testcase_08 | AC | 2 ms
6,940 KB |
testcase_09 | AC | 2 ms
6,944 KB |
testcase_10 | AC | 144 ms
16,896 KB |
testcase_11 | AC | 405 ms
51,688 KB |
testcase_12 | AC | 257 ms
28,564 KB |
testcase_13 | AC | 101 ms
19,300 KB |
testcase_14 | AC | 110 ms
19,944 KB |
testcase_15 | AC | 336 ms
45,224 KB |
testcase_16 | AC | 34 ms
6,940 KB |
testcase_17 | AC | 164 ms
20,640 KB |
testcase_18 | AC | 296 ms
45,636 KB |
testcase_19 | AC | 310 ms
46,244 KB |
testcase_20 | AC | 140 ms
21,108 KB |
testcase_21 | AC | 135 ms
20,220 KB |
testcase_22 | AC | 287 ms
46,920 KB |
testcase_23 | AC | 75 ms
15,868 KB |
testcase_24 | AC | 215 ms
24,284 KB |
testcase_25 | AC | 42 ms
9,204 KB |
testcase_26 | AC | 86 ms
18,448 KB |
testcase_27 | AC | 222 ms
23,712 KB |
testcase_28 | AC | 126 ms
19,976 KB |
testcase_29 | AC | 291 ms
45,664 KB |
testcase_30 | AC | 39 ms
6,948 KB |
testcase_31 | AC | 19 ms
6,940 KB |
testcase_32 | AC | 56 ms
13,876 KB |
testcase_33 | AC | 217 ms
23,300 KB |
testcase_34 | AC | 21 ms
6,944 KB |
testcase_35 | AC | 82 ms
17,004 KB |
testcase_36 | AC | 99 ms
17,992 KB |
testcase_37 | AC | 278 ms
45,856 KB |
testcase_38 | AC | 172 ms
21,828 KB |
testcase_39 | AC | 19 ms
6,940 KB |
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); } long compress(in long[] arr, out long[long] zip, out long[] unzip) { auto index = MAKE_IDX(arr); long last = arr[index[0]], x; zip[last] = x; unzip ~= last; foreach (i; index[1..$]) { if (arr[i] == last) continue; last = arr[i]; ++x; zip[last] = x; unzip ~= last; } return x+1; } void main() { auto N = RD; auto M = RD; auto A = new long[](M); auto B = new long[](M); bool[long] set; foreach (i; 0..M) { A[i] = RD-1; B[i] = RD-1; set[A[i]] = true; set[B[i]] = true; } long[long] zip; long[] unzip; auto len = compress(set.keys, zip, unzip); auto dp = new long[](len); foreach (i; 0..len) dp[i] = unzip[i] * 2; long ans = long.max; long[][] arr; foreach (i; 0..M) { arr ~= [A[i], i, 0]; arr ~= [B[i], i, 1]; } arr.sort!"a[0] < b[0]"; long lastP, lastC; foreach (e; arr) { auto i = e[1]; auto num = e[2]; auto u = zip[A[i]]; auto v = zip[B[i]]; if (num == 0) { dp[u].chmin(lastC + (A[i] - lastP)*2); lastP = A[i]; lastC = dp[u]; auto c = (B[i] - A[i]) * 2 - 1; dp[v].chmin(dp[u]+c); ans.chmin((N-1 - A[i]) * 2 + dp[u]); } else { dp[v].chmin(lastC + (B[i] - lastP)*2); lastP = B[i]; lastC = dp[v]; ans.chmin((N-1 - B[i]) * 2 + dp[v]); } } writeln(ans); stdout.flush; debug readln; }