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Copy pathQueenCombinationWithBoxRespect.java
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QueenCombinationWithBoxRespect.java
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packagesection12_Backtracking;
publicclassQueenCombinationWithBoxRespect {
publicstaticvoidmain(String[] args) {
boolean[] board = newboolean[4];
intqueens = 2;
intqueenPlacedSoFar = 0;
Stringans = "";
intcurrentBox = 0;
queenCombinationBox(board, currentBox, queens, queenPlacedSoFar, ans);
}
staticvoidqueenCombinationBox(boolean[] board, intcurrBox, intq, intplaced, Stringans) {
if (q == placed) {
System.out.println(ans);
return;
}
if (currBox > board.length - 1)
return;
// placing the queen
board[currBox] = true;
queenCombinationBox(board, currBox + 1, q, placed + 1, ans + "b" + currBox);
// not placing the queen
board[currBox] = false;
queenCombinationBox(board, currBox + 1, q, placed, ans);
}
}
/* output:
b0b1
b0b2
b0b3
b1b2
b1b3
b2b3
*/
