Submission #520977

#	Time	Username	Problem	Language	Result	Execution time	Memory
520977		szekelymilan	Arranging Shoes (IOI19_shoes)	C++14	25 / 100	30 ms	1844 KiB

shoes

#include "shoes.h"

long long count_swaps(std::vector<int> s) {
  long long n = s.size() / 2;
  if (n == 1) return s[0] > 0;

  return n * (n - 1) / 2;
}

• Subtask 1: 10 / 10
• Subtask 2: 0 / 20
• Subtask 3: 0 / 20
• Subtask 4: 15 / 15
• Subtask 5: 0 / 20
• Subtask 6: 0 / 15