Submission #208327

#	Time	Username	Problem	Language	Result	Execution time	Memory
208327		alexxela12345	Arranging Shoes (IOI19_shoes)	C++17	50 / 100	1085 ms	3320 KiB

shoes

#include <bits/stdc++.h>
using namespace std;

long long count_swaps(vector<int> a) {
  int n = a.size() / 2;
  long long ans = 0;
  while (n) {
    int x = a[0];
    int ind = 1;
    while (a[ind] != -x) {
      ind++;
    }
    if (x < 0) {
      ans += ind - 1;
    } else {
      ans += ind;
    }
    a.erase(a.begin() + ind);
    a.erase(a.begin());
    n--;
  }
  return ans;
}

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