Submission #165440

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
165440	2019-11-27 09:14:59	piyushkumar	Arranging Shoes (IOI19_shoes)	Java	50 / 100	1045 ms	13812 KiB

shoes

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class shoes{
  public static long count_swaps(int[] n) {
        long c=0;
        for (int i=0;i<n.length;i+=2){
            int j;
            int x=-n[i];
            for (j=i+1;j<n.length;j++){
                if(n[j]==x)
                    break;
            }
            while (j>i+1){
                if(n[j-1]==n[j]){
                    j--;
                    continue;
                }
                int d=n[j-1];
                n[j-1]=n[j];
                n[j]=d;
                c++;
                j--;
            }
            if(n[i]>0){
                int d=n[j-1];
                n[j-1]=n[j];
                n[j]=d;
                c++;
            }
        }
        return c;
 
 
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• Subtask 1: 10 / 10
• Subtask 2: 20 / 20
• Subtask 3: 0 / 20
• Subtask 4: 0 / 15
• Subtask 5: 20 / 20
• Subtask 6: 0 / 15