結果
| 問題 |
No.5002 stick xor
|
| コンテスト | |
| ユーザー |
|
| 提出日時 | 2018-05-26 14:14:08 |
| 言語 | D (dmd 2.109.1) |
| 結果 |
AC
|
| 実行時間 | 987 ms / 1,000 ms |
| コード長 | 3,313 bytes |
| コンパイル時間 | 36,769 ms |
| 実行使用メモリ | 12,396 KB |
| スコア | 43,137 |
| 最終ジャッジ日時 | 2023-06-01 00:00:00 |
|
ジャッジサーバーID (参考情報) |
judge6 / |
| 純コード判定しない問題か言語 |
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| ファイルパターン | 結果 |
|---|---|
| other | AC * 32 |
ソースコード
import std.stdio, std.array, std.string, std.conv, std.algorithm;
import std.typecons, std.range, std.random, std.math, std.container;
import std.numeric, std.bigint, core.bitop, std.bitmanip, std.datetime;
immutable int N = 60;
immutable int K = 500;
void main() {
auto start_time = Clock.currTime();
readln.split;
auto X = readln.split.map!(to!int).array;
auto A = N.iota.map!(_ => readln.chomp.map!(a => a == '1').array).array;
int[][] ops = new int[][](K);
int[] search(int x) {
int best_score = -100;
int[][] best_ops;
foreach (i; 0..N) {
int score = 0;
foreach (j; 0..X[x]) {
score += A[i][j] ? 1 : -1;
}
if (score > best_score) {
best_score = score;
best_ops = [[i, 0, i, X[x]-1]];
} else if (score == best_score) {
best_ops ~= [i, 0, i, X[x]-1];
}
foreach (j; 1..N-X[x]+1) {
score += A[i][j-1] ? -1 : 1;
score += A[i][j+X[x]-1] ? 1 : -1;
if (score > best_score) {
best_score = score;
best_ops = [[i, j, i, j+X[x]-1]];
} else if (score == best_score) {
best_ops ~= [i, j, i, j+X[x]-1];
}
}
}
foreach (j; 0..N) {
int score = 0;
foreach (i; 0..X[x]) {
score += A[i][j] ? 1 : -1;
}
if (score > best_score) {
best_score = score;
best_ops = [[0, j, X[x]-1, j]];
} else if (score == best_score) {
best_ops ~= [0, j, X[x]-1, j];
}
foreach (i; 1..N-X[x]+1) {
score += A[i-1][j] ? -1 : 1;
score += A[i+X[x]-1][j] ? 1 : -1;
if (score > best_score) {
best_score = score;
best_ops = [[i, j, i+X[x]-1, j]];
} else if (score == best_score) {
best_ops ~= [i, j, i+X[x]-1, j];
}
}
}
return best_ops[uniform(0, best_ops.length)];
}
auto hoge = K.iota.array;
hoge.randomShuffle;
//hoge.sort!((a, b) => X[a] > X[b]);
foreach (x; hoge) {
ops[x] = search(x);
foreach (i; ops[x][0]..ops[x][2]+1)
foreach (j; ops[x][1]..ops[x][3]+1)
A[i][j] ^= 1;
}
debug { int loop_cnt; int improved_cnt; }
while ((Clock.currTime - start_time).total!"msecs" < dur!"msecs"(980).total!"msecs") {
int x = uniform(0, K);
debug { int score; }
foreach (i; ops[x][0]..ops[x][2]+1)
foreach (j; ops[x][1]..ops[x][3]+1) {
debug { score += A[i][j] ? 1 : -1; }
A[i][j] ^= 1;
}
ops[x] = search(x);
foreach (i; ops[x][0]..ops[x][2]+1)
foreach (j; ops[x][1]..ops[x][3]+1) {
debug { score += A[i][j] ? 1 : -1; }
A[i][j] ^= 1;
}
debug { loop_cnt += 1; if (score > 0) improved_cnt += 1; }
}
debug { writeln(improved_cnt, " / ", loop_cnt); }
foreach (op; ops)
op.map!(a => (a+1).to!string).join(" ").writeln;
}