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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
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*
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
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* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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/**
* @test
* @bug 6890943
* @summary JVM mysteriously gives wrong result on 64-bit 1.6 VMs in hotspot mode.
*
* @run main/othervm/timeout=240 compiler.c2.cr6890943.Test6890943
*/
package compiler.c2.cr6890943;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.nio.file.Path;
import java.nio.file.Paths;
import java.util.HashMap;
import java.util.Map;
import java.util.Scanner;
public class Test6890943 {
public static final boolean AIR = true, ROCK = false;
private static final Path PATH = Paths.get(System.getProperty("test.src", "."));
private static final Path INPUT_FILE = PATH.resolve("input6890943.txt");
private static final Path GOLDEN_FILE = PATH.resolve("output6890943.txt");
public static void main(String[] args) {
new Test6890943().go();
}
int r, c, f, t;
boolean[][] grid;
public void go() {
Scanner in, golden;
try {
in = new Scanner(new FileInputStream(INPUT_FILE.toFile()));
golden = new Scanner(new FileInputStream(GOLDEN_FILE.toFile()));
} catch (FileNotFoundException e) {
throw new RuntimeException("TEST failure: can't open test file", e);
}
in.useDelimiter("\\s+");
golden.useDelimiter("\\s+");
int T = in.nextInt();
for (t = 0; t < T; t++) {
r = in.nextInt();
c = in.nextInt();
f = in.nextInt();
grid = new boolean[r][c];
for (int x = 0; x < r; x++) {
String line = in.next();
for (int y = 0; y < c; y++) {
grid[x][y] = line.charAt(y) == '.';
}
}
int digs = solve();
String result = "Case #" + (t + 1) + ": " + (digs == -1 ? "No" : "Yes " + digs);
System.out.println(result);
// Compare with golden string from the file
String goldenStr = golden.nextLine();
if (!result.equals(goldenStr)) {
System.err.println("FAIL: strings are not equal\n"
+ "-- Result: " + result + "\n"
+ "-- Golden: " + goldenStr);
throw new RuntimeException("FAIL: Result string is not equal to the golden");
}
}
}
Map<Integer, Integer> M = new HashMap<Integer, Integer>();
private int solve() {
M = new HashMap<Integer, Integer>();
M.put(calcWalkingRange(0, 0), 0);
for (int digDown = 0; digDown < r; digDown++) {
Map<Integer, Integer> tries = new HashMap<Integer, Integer>();
for (Map.Entry<Integer, Integer> m : M.entrySet()) {
int q = m.getKey();
if (depth(q) != (digDown)) continue;
if (stuck(q)) continue;
tries.put(q, m.getValue());
}
for (Map.Entry<Integer, Integer> m : tries.entrySet()) {
int q = m.getKey();
int fallLeftDelta = 0, fallRightDelta = 0;
//fall left
int fallLeft = fall(digDown, start(q));
if (fallLeft > 0) {
fallLeftDelta = 1;
if (fallLeft <= f) addToM(calcWalkingRange(digDown + fallLeft, start(q)), m.getValue());
}
//fall right
int fallRight = fall(digDown, end(q));
if (fallRight > 0) {
fallRightDelta = 1;
if (fallRight <= f) addToM(calcWalkingRange(digDown + fallRight, end(q)), m.getValue());
}
for (int p = start(q) + fallLeftDelta; p <= end(q) - fallRightDelta; p++) {
//goLeft
for (int digSpot = p; digSpot > start(q) + fallLeftDelta; digSpot--) {
int fallDown = 1 + fall(digDown + 1, digSpot);
if (fallDown <= f) {
if (fallDown == 1) {
addToM(calcWalkingRange(digDown + 1, digSpot, digSpot, p),
m.getValue() + Math.abs(digSpot - p) + 1);
} else {
addToM(calcWalkingRange(digDown + fallDown, digSpot),
m.getValue() + Math.abs(digSpot - p) + 1);
}
}
}
//goRight
for (int digSpot = p; digSpot < end(q) - fallRightDelta; digSpot++) {
int fallDown = 1 + fall(digDown + 1, digSpot);
if (fallDown <= f) {
if (fallDown == 1) {
addToM(calcWalkingRange(digDown + 1, digSpot, p, digSpot),
m.getValue() + Math.abs(digSpot - p) + 1);
} else {
addToM(calcWalkingRange(digDown + fallDown, digSpot),
m.getValue() + Math.abs(digSpot - p) + 1);
}
}
}
}
}
}
int result = Integer.MAX_VALUE;
for (Map.Entry<Integer, Integer> m : M.entrySet()) {
if (depth(m.getKey()) == r - 1) result = Math.min(m.getValue(), result);
}
if (result == Integer.MAX_VALUE) return -1;
return result;
}
private void addToM(int q, int i) {
Integer original = M.get(q);
if (original == null) M.put(q, i);
else M.put(q, Math.min(original, i));
}
private int fall(int row, int column) {
int res = 0;
for (int p = row + 1; p < r; p++) {
if (grid[p][column] == AIR) res++;
else break;
}
return res;
}
private boolean stuck(int q) {
return start(q) == end(q);
}
private int depth(int q) {
return q % 50;
}
private int start(int q) {
return q / (50 * 50);
}
private int end(int q) {
return (q / 50) % 50;
}
private int calcWalkingRange(int depth, int pos) {
return calcWalkingRange(depth, pos, Integer.MAX_VALUE, Integer.MIN_VALUE);
}
private int calcWalkingRange(int depth, int pos, int airOverrideStart, int airOverrideEnd) {
int left = pos, right = pos;
if (depth >= r) return (c - 1) * 50 + depth;
while (left > 0) {
if (grid[depth][left - 1] == ROCK && (left - 1 < airOverrideStart || left - 1 > airOverrideEnd)) break;
if (depth < r - 1 && grid[depth + 1][left - 1] == AIR) {
left--;
break;
}
left--;
}
while (right < c - 1) {
if (grid[depth][right + 1] == ROCK && (right + 1 < airOverrideStart || right + 1 > airOverrideEnd)) break;
if (depth < r - 1 && grid[depth + 1][right + 1] == AIR) {
right++;
break;
}
right++;
}
return left * 50 * 50 + right * 50 + depth;
}
}