Commit
This commit does not belong to any branch on this repository, and may belong to a fork outside of the repository.
- Loading branch information
Showing
2 changed files
with
20 additions
and
0 deletions.
There are no files selected for viewing
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
Original file line number | Diff line number | Diff line change |
---|---|---|
@@ -0,0 +1,15 @@ | ||
# Nim Game | ||
|
||
You are playing the following Nim Game with your friend: There is a heap of stones on the table, each time one of you take turns to remove 1 to 3 stones. The one who removes the last stone will be the winner. You will take the first turn to remove the stones. | ||
|
||
Both of you are very clever and have optimal strategies for the game. Write a function to determine whether you can win the game given the number of stones in the heap. | ||
|
||
|
||
## Example: | ||
``` | ||
**Input**: 4 | ||
**Output**: false | ||
**Explanation**: If there are 4 stones in the heap, then you will never win the game; | ||
No matter 1, 2, or 3 stones you remove, the last stone will always be | ||
removed by your friend. | ||
``` |
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
Original file line number | Diff line number | Diff line change |
---|---|---|
@@ -0,0 +1,5 @@ | ||
class Solution { | ||
public boolean canWinNim(int n) { | ||
return (n & 3) != 0;// n%4 != 0 | ||
} | ||
} |