Submission #298951

#	Time	Username	Problem	Language	Result	Execution time	Memory
298951		TMJN	Arranging Shoes (IOI19_shoes)	C++17	50 / 100	1088 ms	3224 KiB

shoes

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

long long count_swaps(vector<int>v) {
	int N=v.size();
	long long t=0;
	for(int i=0;i<N;i+=2){
		for(int j=i+1;j<N;j++){
			if(v[j]==-v[i]){
				for(int k=j-1;k>i;k--){
					swap(v[k],v[k+1]);
					t++;
				}
				break;
			}
		}
		if(v[i]>0){
			swap(v[i],v[i+1]);
			t++;
		}
	}
	return t;
}

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