Submission #724273

#	Time	Username	Problem	Language	Result	Execution time	Memory
724273		PixelCat	Arranging Shoes (IOI19_shoes)	C++14	15 / 100	19 ms	2308 KiB

shoes

#include "shoes.h"
#ifdef NYAOWO
#include "grader.cpp"
#endif

#include <bits/stdc++.h>
#define For(i, a, b) for(int i = a; i <= b; i++)
#define Forr(i, a, b) for(int i = a; i >= b; i--)
#define F first
#define S second
#define eb emplace_back
#define sz(x) ((int)x.size())
#define all(x) x.begin(), x.end()
#define int LL
using namespace std;
using LL = long long;
using pii = pair<int, int>;

long long count_swaps(std::vector<int32_t> s) {
    int n = sz(s) / 2;
    return 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