Submission #1237097

#	Time	Username	Problem	Language	Result	Execution time	Memory
1237097		Ghulam_Junaid	Arranging Shoes (IOI19_shoes)	C++20	50 / 100	1095 ms	1864 KiB

shoes

#include <bits/stdc++.h>
#include "shoes.h"
// #include "grader.cpp"
using namespace std;

typedef long long ll;

ll count_swaps(vector<int> s) {
    ll ans = 0;
    for (int cur = 0; cur < s.size(); cur += 2){
        int f = cur + 1;
        while (s[f] != -s[cur])
            f ++;
        for (int i = f; i > cur + 1; i --)
            swap(s[i], s[i - 1]);
        ans += f - cur - 1;
        if (s[cur] > 0) 
            ans++;
    }
	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