結果
| 問題 |
No.1647 Travel in Mitaru city 2
|
| コンテスト | |
| ユーザー |
daut-dlang
|
| 提出日時 | 2021-08-13 22:48:30 |
| 言語 | D (dmd 2.109.1) |
| 結果 |
WA
|
| 実行時間 | - |
| コード長 | 3,227 bytes |
| コンパイル時間 | 747 ms |
| コンパイル使用メモリ | 118,200 KB |
| 実行使用メモリ | 17,644 KB |
| 最終ジャッジ日時 | 2024-06-22 12:06:03 |
| 合計ジャッジ時間 | 14,978 ms |
|
ジャッジサーバーID (参考情報) |
judge1 / judge5 |
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| ファイルパターン | 結果 |
|---|---|
| sample | AC * 2 WA * 1 |
| other | AC * 2 WA * 46 |
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[] rotate(double[] vec, double rad) { return [cos(rad)*vec[0] - sin(rad)*vec[1], sin(rad)*vec[0] + cos(rad)*vec[1]]; }
//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); }
void main()
{
auto H = RD;
auto W = RD;
auto N = RD;
auto x = new long[](N);
auto y = new long[](N);
auto cnt_h = new long[](H);
auto cnt_w = new long[](W);
foreach (i; 0..N)
{
x[i] = RD-1;
y[i] = RD-1;
++cnt_h[x[i]];
++cnt_w[y[i]];
}
long[] index;
foreach (i; 0..N)
{
if (cnt_h[x[i]] >= 2 && cnt_w[y[i]] >= 2)
index ~= i;
}
auto index_h = new long[][](H);
auto index_w = new long[][](W);
foreach (i; index)
{
index_h[x[i]] ~= i;
index_w[y[i]] ~= i;
}
long[] pair;
(){
foreach (i; 0..H)
{
if (index_h[i].length >= 2)
{
pair = index_h[i][0..2];
return;
}
}
foreach (i; 0..W)
{
if (index_w[i].length >= 2)
{
pair = index_w[i][0..2];
return;
}
}
}();
if (pair.empty)
writeln(-1);
else
{
auto i = pair[0];
auto j = pair[1];
long ii, jj;
if (x[i] == x[j])
{
foreach (k; 0..N)
{
if (k == i || k == j) continue;
if (y[k] == y[i])
ii = k;
else if (y[k] == y[j])
jj = k;
}
}
else
{
foreach (k; 0..N)
{
if (k == i || k == j) continue;
if (x[k] == x[i])
ii = k;
else if (x[k] == x[j])
jj = k;
}
}
writeln(4);
writeln(ii+1, " ", i+1, " ", j+1, " ", jj+1);
}
stdout.flush;
debug readln;
}
daut-dlang