Submission #436575

#	Time	Username	Problem	Language	Result	Execution time	Memory
436575		rGamer	Arranging Shoes (IOI19_shoes)	C++17	50 / 100	1094 ms	1868 KiB

shoes

#include <bits/stdc++.h>
#define ll long long
#define vi vector<int>

using namespace std;
 
ll count_swaps(vi s) {
    int n = s.size(), ans = 0;
    for(int i = 0; i < n; i += 2) {
        int j = i + 1;
        while(s[j] != - s[i])
            j++;
        while(j != i + 1) {
            ans++;
            swap(s[j], s[j - 1]);
            j--;
        }
        if(s[i] > 0) {
            swap(s[i], s[i + 1]);
            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