Submission #240823

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
240823	2020-06-21 08:53:02	zoomswk	Arranging Shoes (IOI19_shoes)	C++17	50 / 100	1091 ms	3192 KiB

shoes

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#include "shoes.h"
using namespace std;
 
long long count_swaps(std::vector<int> s) {
  int n = (int)s.size();
  long long res = 0;
  for(int i=0; i<n; i+=2){
    int loc = -1;
    for(int j=i+1; j<n; j++) if(s[j] == -s[i]){ loc = j; break; }
    while(loc > i+1){
      swap(s[loc], s[loc-1]);
      loc--;
      res++;
    }
    if(s[i] > 0) res++;
  }
  return res;
}
 
 
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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