Submission #143782

#	Time	Username	Problem	Language	Result	Execution time	Memory
143782		jh05013	Arranging Shoes (IOI19_shoes)	C++17	10 / 100	1044 ms	2040 KiB

shoes

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

long long count_swaps(std::vector<int> s) {
	int n = s.size();
    long long ans = 0;
    for(int i=0; i<n; i++){
        int j = -999;
        if(i%2 == 0){
            for(j=i; j<n; j++) if(s[j] < 0) break;
        }
        else{
            for(j=i; j<n; j++) if(s[j] == -s[i-1]) break;
        }
        for(int k=j-1; k>=i; k--) swap(s[k], s[k+1]), ans++;
    }
    return ans;
}

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