Submission #977971

#	Time	Username	Problem	Language	Result	Execution time	Memory
977971		kilkuwu	Arranging Shoes (IOI19_shoes)	C++17	15 / 100	17 ms	3264 KiB

shoes

#include "shoes.h"

#include <bits/stdc++.h>

long long count_swaps(std::vector<int> s) {
  int n = (int) s.size() / 2;
  return (int64_t) n * (n - 1) / 2;
}

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