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Copy pathJava1DArrayPart2.java
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68 lines (51 loc) · 1.61 KB
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packageDataStructure;
importjava.util.*;
publicclassJava1DArrayPart2 {
privatestaticintleap = 0;
privatestaticint[] game;
privatestaticint[] went;
privatestaticintlength;
publicstaticbooleanplay(intindex)
{
went[index] = 1;
if (index + 1 == length && game[length] == 0) {
returntrue;
}
if (leap > 1) {
if (index + leap > length) {
returntrue;
}
if (game[index + leap] == 0 && went[index + leap] == 0 && play(index + leap)) {
returntrue;
}
}
if (game[index + 1] == 0 && went[index + 1] == 0 && play(index + 1)) {
returntrue;
}
if (index - 1 >= 0 && game[index - 1] == 0 && went[index - 1] == 0 && play(index - 1)) {
returntrue;
}
returnfalse;
}
publicstaticbooleancanWin(intleap, int[] game) {
Java1DArrayPart2.went = newint[game.length];
Java1DArrayPart2.game = game;
Java1DArrayPart2.leap = leap;
Java1DArrayPart2.length = game.length - 1;
returnplay(0);
}
publicstaticvoidmain(String[] args) {
Scannerscan = newScanner(System.in);
intq = scan.nextInt();
while (q-- > 0) {
intn = scan.nextInt();
intleap = scan.nextInt();
int[] game = newint[n];
for (inti = 0; i < n; i++) {
game[i] = scan.nextInt();
}
System.out.println( (canWin(leap, game)) ? "YES" : "NO" );
}
scan.close();
}
}