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| back to board | Why my prog Crash? import java.io.BufferedReader;import java.io.IOException;
 import java.io.InputStreamReader;
 import java.util.Arrays;
 import java.util.Scanner;
 
 
 public class PileOfStones {
 private static int sum = 0;
 private static int minSum = 0;
 private static int myMinSum;
 private static int min;
 private static int m=0;
 private static int error = 0;
 
 public static void main(String[] args) throws IOException {
 BufferedReader in = new BufferedReader(new InputStreamReader(System.in));
 int pl = Integer.parseInt(in.readLine());
 if(pl>=1 && pl<=20){
 int[] stones = new int[pl];
 int k = stones.length-1;
 Scanner sc1=new Scanner(System.in);
 for (int i = 0; i < pl; i++) {
 stones[i] = sc1.nextInt();
 if(stones[i]<1 || stones[i]>100000){
 error =1;
 break;
 }
 }
 if(error!=1){
 for (int i = 0; i < stones.length; i++) {
 sum+=stones[i];
 }
 Arrays.sort(stones);
 min=sum;
 while(k>0){
 for (int i = k; i >= 0; i--) {
 if((stones[i] + minSum)<=(sum/2)){
 minSum+=stones[i];
 k=i;
 }
 }
 if((sum/2-minSum)<=min ){
 myMinSum=minSum;
 }
 minSum-=stones[k];
 if(k!=m){
 m=k;
 }
 else{
 k=-1;
 }
 }
 System.out.println(sum-2*myMinSum);
 }
 }
 
 }
 
 
 }
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