結果
| 問題 | No.3482 Quod Erat Demonstrandum |
| コンテスト | |
| ユーザー |
|
| 提出日時 | 2026-03-27 21:49:06 |
| 言語 | D (dmd 2.112.0) |
| 結果 |
AC
|
| 実行時間 | 569 ms / 2,000 ms |
| コード長 | 2,909 bytes |
| 記録 | |
| コンパイル時間 | 2,151 ms |
| コンパイル使用メモリ | 99,652 KB |
| 実行使用メモリ | 22,144 KB |
| 最終ジャッジ日時 | 2026-03-27 21:49:31 |
| 合計ジャッジ時間 | 20,017 ms |
|
ジャッジサーバーID (参考情報) |
judge1_1 / judge2_1 |
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| ファイルパターン | 結果 |
|---|---|
| sample | AC * 1 |
| other | AC * 45 |
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)); }
void main() {
try {
for (; ; ) {
const numCases = readInt;
foreach (caseId; 0 .. numCases) {
const N = readInt;
const M = readInt;
auto A = new int[M];
auto B = new int[M];
auto C = new int[M];
foreach (i; 0 .. M) {
A[i] = readInt - 1;
B[i] = readInt - 1;
C[i] = readInt;
}
auto graph = new int[][N];
foreach (i; 0 .. M) if (C[i] == 1) {
graph[A[i]] ~= B[i];
graph[B[i]] ~= A[i];
}
auto dist = new int[][](2, N);
foreach (h; 0 .. 2) {
const src = (h == 0) ? 0 : (N-1);
DList!int que;
dist[h][] = -1;
dist[h][src] = 0;
que ~= src;
for (; !que.empty; ) {
const u = que.front;
que.removeFront;
foreach (v; graph[u]) {
if (!~dist[h][v]) {
dist[h][v] = dist[h][u] + 1;
que ~= v;
}
}
}
debug writeln(dist[h]);
}
if (~dist[1][0]) {
writeln("Same");
writeln(dist[1][0]);
} else {
int ans = int.max;
void check(int u, int v) {
if (~dist[0][u] && ~dist[1][v]) {
chmin(ans, dist[0][u] + 1 + dist[1][v]);
}
}
foreach (i; 0 .. M) if (C[i] == 2) {
check(A[i], B[i]);
check(B[i], A[i]);
}
if (ans < int.max) {
writeln("Different");
writeln(ans);
} else {
writeln("Unknown");
}
}
}
}
} catch (EOFException e) {
}
}