Created
January 23, 2017 15:54
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import java.lang.reflect.Array; | |
import java.util.ArrayList; | |
import java.util.List; | |
import java.util.Scanner; | |
/** | |
* Created by Marina on 23.01.2017 г.. | |
*/ | |
public class CollectTheCoins { | |
public static void main(String[] args) { | |
Scanner scanner = new Scanner(System.in); | |
ArrayList<String> board = new ArrayList<>(); | |
//get the matrix | |
for (int row = 0; row < 4; row++) { | |
String[] input = scanner.nextLine().split(""); | |
for (int col = 0; col < input.length; col++) { | |
String nextLine = input[col]; | |
board.add(row, nextLine); | |
} | |
} | |
String[] command = scanner.nextLine().split(""); | |
//some variables for moving on the board | |
int currRow = 0; | |
int currCol = 0; | |
//int pos=0; | |
int wallsHit = 0; | |
int coinsCollected = 0; | |
//try to catch the exception, otherwise move around board | |
for (int pos = 0; pos < command.length; pos++) { | |
try { | |
if (command[pos].equals("V")) { | |
currRow++; | |
} else if (command[pos].equals(">")) { | |
currCol++; | |
} else if (command[pos].equals("^")) { | |
currRow--; | |
} else if (command[pos].equals("<")) { | |
currCol--; | |
} | |
} catch (ArrayIndexOutOfBoundsException e) { | |
wallsHit++; | |
} | |
//check if there is a coin to collect | |
char[] nextLine = board.get(currRow).toCharArray(); | |
if (nextLine[currCol] == '$') { | |
coinsCollected++; | |
} | |
} | |
//print result | |
System.out.printf("Coins collected: %d", coinsCollected); | |
System.out.printf("Walls hit: %d", wallsHit); | |
} | |
} | |
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